int main(int argc, char **argv) {
int c, i, mu, nu;
int count = 0;
int filename_set = 0;
int dims[4] = {0,0,0,0};
int l_LX_at, l_LXstart_at;
int x0, x1, x2, x3, ix, iix;
int dxm[4], dxn[4], ixpm, ixpn;
int sid;
double *disc = (double*)NULL;
double *disc2 = (double*)NULL;
double *work = (double*)NULL;
double q[4], fnorm;
int verbose = 0;
int do_gt = 0;
char filename[100], contype[200];
double ratime, retime;
double plaq, _2kappamu, hpe3_coeff, onepmutilde2, mutilde2;
double spinor1[24], spinor2[24], U_[18], U1_[18], U2_[18];
double *gauge_trafo=(double*)NULL;
complex w, w1, w2, *cp1, *cp2, *cp3;
FILE *ofs;
fftw_complex *in=(fftw_complex*)NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p, plan_m;
#else
fftwnd_plan plan_p, plan_m;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "h?vgf:")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'g':
do_gt = 1;
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
if(filename_set==0) strcpy(filename, "cvc.input");
fprintf(stdout, "# Reading input from file %s\n", filename);
read_input_parser(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
if(g_kappa == 0.) {
if(g_proc_id==0) fprintf(stdout, "kappa should be > 0.n");
usage();
}
/* initialize MPI parameters */
mpi_init(argc, argv);
/* initialize fftw */
dims[0]=T_global; dims[1]=LX; dims[2]=LY; dims[3]=LZ;
#ifdef MPI
plan_p = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_BACKWARD, FFTW_MEASURE);
plan_m = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_FORWARD, FFTW_MEASURE);
fftwnd_mpi_local_sizes(plan_p, &T, &Tstart, &l_LX_at, &l_LXstart_at, &FFTW_LOC_VOLUME);
#else
plan_p = fftwnd_create_plan(4, dims, FFTW_BACKWARD, FFTW_MEASURE | FFTW_IN_PLACE);
plan_m = fftwnd_create_plan(4, dims, FFTW_FORWARD, FFTW_MEASURE | FFTW_IN_PLACE);
T = T_global;
Tstart = 0;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
#endif
fprintf(stdout, "# [%2d] fftw parameters:\n"\
"# [%2d] T = %3d\n"\
"# [%2d] Tstart = %3d\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, T, g_cart_id, Tstart, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
#ifdef MPI
if(T==0) {
fprintf(stderr, "[%2d] local T is zero; exit\n", g_cart_id);
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(2);
}
#endif
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(1);
}
geometry();
/* read the gauge field */
alloc_gauge_field(&g_gauge_field, VOLUMEPLUSRAND);
sprintf(filename, "%s.%.4d", gaugefilename_prefix, Nconf);
if(g_cart_id==0) fprintf(stdout, "reading gauge field from file %s\n", filename);
read_lime_gauge_field_doubleprec(filename);
#ifdef MPI
xchange_gauge();
#endif
/* measure the plaquette */
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "measured plaquette value: %25.16e\n", plaq);
if(do_gt==1) {
/***********************************
* initialize gauge transformation
***********************************/
init_gauge_trafo(&gauge_trafo, 1.);
apply_gt_gauge(gauge_trafo);
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "measured plaquette value after gauge trafo: %25.16e\n", plaq);
}
/****************************************
* allocate memory for the spinor fields
****************************************/
no_fields = 3;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields; i++) alloc_spinor_field(&g_spinor_field[i], VOLUMEPLUSRAND);
/****************************************
* allocate memory for the contractions
****************************************/
disc = (double*)calloc( 8*VOLUME, sizeof(double));
if( disc == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
disc2 = (double*)calloc( 8*VOLUME, sizeof(double));
if( disc2 == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc2\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
for(ix=0; ix<8*VOLUME; ix++) disc2[ix] = 0.;
work = (double*)calloc(48*VOLUME, sizeof(double));
if( work == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for work\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
/****************************************
* prepare Fourier transformation arrays
****************************************/
in = (fftw_complex*)malloc(FFTW_LOC_VOLUME*sizeof(fftw_complex));
if(in==(fftw_complex*)NULL) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(4);
}
/************************************************
* HPE: calculate coeff. of 3rd order term
************************************************/
_2kappamu = 2. * g_kappa * g_mu;
onepmutilde2 = 1. + _2kappamu * _2kappamu;
mutilde2 = _2kappamu * _2kappamu;
hpe3_coeff = 16. * g_kappa*g_kappa*g_kappa*g_kappa * (1. + 6. * mutilde2 + mutilde2*mutilde2) / onepmutilde2 / onepmutilde2 / onepmutilde2 / onepmutilde2;
/*
hpe3_coeff = 8. * g_kappa*g_kappa*g_kappa * \
(1. + 6.*_2kappamu*_2kappamu + _2kappamu*_2kappamu*_2kappamu*_2kappamu) / (1. + _2kappamu*_2kappamu) / (1. + _2kappamu*_2kappamu) / (1. + _2kappamu*_2kappamu) / (1. + _2kappamu*_2kappamu);
*/
fprintf(stdout, "hpe3_coeff = %25.16e\n", hpe3_coeff);
/************************************************
* HPE: calculate the plaquette terms
************************************************/
for(ix=0; ix<VOLUME; ix++) {
for(mu=0; mu<4; mu++) {
for(i=1; i<4; i++) {
nu = (mu+i)%4;
_cm_eq_cm_ti_cm(U1_, g_gauge_field+_GGI(ix,mu), g_gauge_field+_GGI(g_iup[ix][mu],nu) );
_cm_eq_cm_ti_cm(U2_, g_gauge_field+_GGI(ix,nu), g_gauge_field+_GGI(g_iup[ix][nu],mu) );
_cm_eq_cm_ti_cm_dag(U_, U1_, U2_);
_co_eq_tr_cm(&w1, U_);
iix = g_idn[ix][nu];
_cm_eq_cm_ti_cm(U1_, g_gauge_field+_GGI(iix,mu), g_gauge_field+_GGI(g_iup[iix][mu],nu) );
_cm_eq_cm_ti_cm(U2_, g_gauge_field+_GGI(iix,nu), g_gauge_field+_GGI(g_iup[iix][nu],mu) );
_cm_eq_cm_ti_cm_dag(U_, U1_, U2_);
_co_eq_tr_cm(&w2, U_);
disc2[_GWI(mu,ix,VOLUME)+1] += hpe3_coeff * (w1.im - w2.im);
/*
_cm_eq_cm_ti_cm(U1_, g_gauge_field+_GGI(g_idn[ix][nu],nu), g_gauge_field+_GGI(ix,mu) );
_cm_eq_cm_ti_cm(U2_, g_gauge_field+_GGI(g_idn[ix][nu],mu), g_gauge_field+_GGI(g_iup[g_idn[ix][nu]][mu], nu) );
_cm_eq_cm_ti_cm_dag(U_, U1_, U2_);
_co_eq_tr_cm(&w2, U_);
disc2[_GWI(mu,ix,VOLUME)+1] += hpe3_coeff * (w1.im + w2.im);
*/
/* fprintf(stdout, "mu=%1d, ix=%5d, nu=%1d, w1=%25.16e +i %25.16e; w2=%25.16e +i %25.16e\n",
mu, ix, nu, w1.re, w1.im, w2.re, w2.im); */
} /* of nu */
/****************************************
* - in case lattice size equals 4
* calculate additional loop term
* - _NOTE_ the possible minus sign from
* the fermionic boundary conditions
****************************************/
if(dims[mu]==4) {
wilson_loop(&w, ix, mu, dims[mu]);
fnorm = -64. * g_kappa*g_kappa*g_kappa*g_kappa / onepmutilde2 / onepmutilde2 / onepmutilde2 / onepmutilde2;
disc2[_GWI(mu,ix,VOLUME)+1] += fnorm * w.im;
/* fprintf(stdout, "loop contribution: ix=%5d, mu=%2d, fnorm=%25.16e, w=%25.16e\n", ix, mu, fnorm, w.im); */
}
/*
fprintf(stdout, "-------------------------------------------\n");
fprintf(stdout, "disc2[ix=%d,mu=%d] = %25.16e +i %25.16e\n", ix, mu, disc2[_GWI(mu,ix,VOLUME)], disc2[_GWI(mu,ix,VOLUME)+1]);
fprintf(stdout, "-------------------------------------------\n");
*/
}
}
/*
sprintf(filename, "avc_disc_hpe5_3rd.%.4d", Nconf);
ofs = fopen(filename, "w");
for(ix=0; ix<VOLUME; ix++) {
for(mu=0; mu<4; mu++) {
fprintf(ofs, "%6d%3d%25.16e\t%25.16e\n", ix, mu, disc[_GWI(mu,ix,VOLUME)], disc[_GWI(mu,ix,VOLUME)+1]);
}
}
fclose(ofs);
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
*/
/*
for(x0=0; x0<T; x0++) {
for(x1=0; x1<LX; x1++) {
for(x2=0; x2<LY; x2++) {
for(x3=0; x3<LZ; x3++) {
ix = g_ipt[x0][x1][x2][x3];
for(mu=0; mu<4; mu++) {
dxm[0]=0; dxm[1]=0; dxm[2]=0; dxm[3]=0; dxm[mu]=1;
for(i=1; i<4; i++) {
nu = (mu+i)%4;
dxn[0]=0; dxn[1]=0; dxn[2]=0; dxn[3]=0; dxn[nu]=1;
ixpm = g_ipt[(x0+dxm[0]+T)%T][(x1+dxm[1]+LX)%LX][(x2+dxm[2]+LY)%LY][(x3+dxm[3]+LZ)%LZ];
ixpn = g_ipt[(x0+dxn[0]+T)%T][(x1+dxn[1]+LX)%LX][(x2+dxn[2]+LY)%LY][(x3+dxn[3]+LZ)%LZ];
_cm_eq_cm_ti_cm(U1_, g_gauge_field + 72*ix+18*mu, g_gauge_field + 72*ixpm+18*nu );
_cm_eq_cm_ti_cm(U2_, g_gauge_field + 72*ix+18*nu, g_gauge_field + 72*ixpn+18*mu );
_cm_eq_cm_ti_cm_dag(U_, U1_, U2_);
_co_eq_tr_cm(&w1, U_);
ixpm = g_ipt[(x0+dxm[0]-dxn[0]+T)%T][(x1+dxm[1]-dxn[1]+LX)%LX][(x2+dxm[2]-dxn[2]+LY)%LY][(x3+dxm[3]-dxn[3]+LZ)%LZ];
ixpn = g_ipt[(x0-dxn[0]+T)%T][(x1-dxn[1]+LX)%LX][(x2-dxn[2]+LY)%LY][(x3-dxn[3]+LZ)%LZ];
_cm_eq_cm_ti_cm(U1_, g_gauge_field + 72*ixpn+18*nu, g_gauge_field + 72*ix+18*mu);
_cm_eq_cm_ti_cm(U2_, g_gauge_field + 72*ixpn+18*mu, g_gauge_field + 72*ixpm+18*nu);
_cm_eq_cm_ti_cm_dag(U_, U1_, U2_);
_co_eq_tr_cm(&w2, U_);
disc2[_GWI(mu,ix,VOLUME)+1] += hpe3_coeff * (w1.im + w2.im);
fprintf(stdout, "mu=%1d, ix=%5d, nu=%1d, w1=%25.16e; w2=%25.16e\n", mu, ix, nu, w1.im, w2.im);
}
fprintf(stdout, "-------------------------------------------\n");
fprintf(stdout, "disc2[ix=%d,mu=%d] = %25.16e +i %25.16e\n", ix, mu, disc2[_GWI(mu,ix,VOLUME)], disc2[_GWI(mu,ix,VOLUME)+1]);
fprintf(stdout, "-------------------------------------------\n");
}
}
}
}
}
*/
/***********************************************
* start loop on source id.s
***********************************************/
for(sid=g_sourceid; sid<=g_sourceid2; sid+=g_sourceid_step) {
/* read the new propagator */
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(format==0) {
sprintf(filename, "%s.%.4d.%.2d.inverted", filename_prefix, Nconf, sid);
if(read_lime_spinor(g_spinor_field[2], filename, 0) != 0) break;
}
else if(format==1) {
sprintf(filename, "%s.%.4d.%.5d.inverted", filename_prefix, Nconf, sid);
if(read_cmi(g_spinor_field[2], filename) != 0) break;
}
xchange_field(g_spinor_field[2]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "time to read prop.: %e seconds\n", retime-ratime);
if(do_gt==1) {
/******************************************
* gauge transform the propagators for sid
******************************************/
for(ix=0; ix<VOLUME; ix++) {
_fv_eq_cm_ti_fv(spinor1, gauge_trafo+18*ix, g_spinor_field[2]+_GSI(ix));
_fv_eq_fv(g_spinor_field[2]+_GSI(ix), spinor1);
}
xchange_field(g_spinor_field[2]);
}
count++;
/************************************************
* calculate the source: apply Q_phi_tbc
************************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
Q_phi_tbc(g_spinor_field[0], g_spinor_field[2]);
xchange_field(g_spinor_field[0]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "time to calculate source: %e seconds\n", retime-ratime);
/************************************************
* HPE: apply BH5
************************************************/
BH5(g_spinor_field[1], g_spinor_field[2]);
/* add new contractions to (existing) disc */
# ifdef MPI
ratime = MPI_Wtime();
# else
ratime = (double)clock() / CLOCKS_PER_SEC;
# endif
for(mu=0; mu<4; mu++) { /* loop on Lorentz index of the current */
iix = _GWI(mu,0,VOLUME);
for(ix=0; ix<VOLUME; ix++) { /* loop on lattice sites */
_cm_eq_cm_ti_co(U_, &g_gauge_field[_GGI(ix, mu)], &co_phase_up[mu]);
/* first contribution */
_fv_eq_cm_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(g_iup[ix][mu])]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_mi_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(ix)], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
/* second contribution */
_fv_eq_cm_dag_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(ix)]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_pl_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(g_iup[ix][mu])], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
iix += 2;
} /* of ix */
} /* of mu */
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to contract cvc: %e seconds\n", retime-ratime);
/************************************************
* save results for count = multiple of Nsave
************************************************/
if(count%Nsave == 0) {
if(g_cart_id == 0) fprintf(stdout, "save results for count = %d\n", count);
fnorm = 1. / ( (double)count * g_prop_normsqr );
if(g_cart_id==0) fprintf(stdout, "# X-fnorm = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(ix=0; ix<VOLUME; ix++) {
work[_GWI(mu,ix,VOLUME) ] = disc[_GWI(mu,ix,VOLUME) ] * fnorm + disc2[_GWI(mu,ix,VOLUME) ];
work[_GWI(mu,ix,VOLUME)+1] = disc[_GWI(mu,ix,VOLUME)+1] * fnorm + disc2[_GWI(mu,ix,VOLUME)+1];
}
}
/* save the result in position space */
sprintf(filename, "cvc_hpe5_X.%.4d.%.4d", Nconf, count);
sprintf(contype, "cvc-disc-all-hpe-05-X");
write_lime_contraction(work, filename, 64, 4, contype, Nconf, count);
/*
sprintf(filename, "cvc_hpe5_Xascii.%.4d.%.4d", Nconf, count);
write_contraction(work, NULL, filename, 4, 2, 0);
*/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
/* Fourier transform data, copy to work */
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(work+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
memcpy((void*)(work+_GWI(4+mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
memcpy((void*)in, (void*)(work+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(work+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
} /* of mu =0 ,..., 3*/
fnorm = 1. / (double)(T_global*LX*LY*LZ);
if(g_cart_id==0) fprintf(stdout, "# P-fnorm = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(work+_GWI(mu,0,VOLUME));
cp2 = (complex*)(work+_GWI(4+nu,0,VOLUME));
cp3 = (complex*)(work+_GWI(8+4*mu+nu,0,VOLUME));
for(x0=0; x0<T; x0++) {
q[0] = (double)(x0+Tstart) / (double)T_global;
for(x1=0; x1<LX; x1++) {
q[1] = (double)(x1) / (double)LX;
for(x2=0; x2<LY; x2++) {
q[2] = (double)(x2) / (double)LY;
for(x3=0; x3<LZ; x3++) {
q[3] = (double)(x3) / (double)LZ;
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI * (q[mu]-q[nu]) );
w.im = sin( M_PI * (q[mu]-q[nu]) );
_co_eq_co_ti_co(&w1, cp1, cp2);
_co_eq_co_ti_co(cp3, &w1, &w);
_co_ti_eq_re(cp3, fnorm);
cp1++; cp2++; cp3++;
}
}
}
}
}
}
/* save the result in momentum space */
sprintf(filename, "cvc_hpe5_P.%.4d.%.4d", Nconf, count);
sprintf(contype, "cvc-disc-all-hpe-05-P");
write_lime_contraction(work+_GWI(8,0,VOLUME), filename, 64, 16, contype, Nconf, count);
/*
sprintf(filename, "cvc_hpe5_Pascii.%.4d.%.4d", Nconf, count);
write_contraction(work+_GWI(8,0,VOLUME), NULL, filename, 16, 2, 0);
*/
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to save cvc results: %e seconds\n", retime-ratime);
} /* of count % Nsave == 0 */
} /* of loop on sid */
/***********************************************
* free the allocated memory, finalize
***********************************************/
free(g_gauge_field);
for(i=0; i<no_fields; i++) free(g_spinor_field[i]);
free(g_spinor_field);
free_geometry();
fftw_free(in);
free(disc);
free(work);
#ifdef MPI
fftwnd_mpi_destroy_plan(plan_p);
fftwnd_mpi_destroy_plan(plan_m);
MPI_Finalize();
#else
fftwnd_destroy_plan(plan_p);
fftwnd_destroy_plan(plan_m);
#endif
return(0);
}
int main(int argc, char **argv) {
int c, i, mu, nu;
int filename_set = 0;
int dims[4] = {0,0,0,0};
int l_LX_at, l_LXstart_at;
int x0, x1, x2, x3, ix, iix;
int xx0, xx1, xx2, xx3;
int y0min, y0max, y1min, y1max, y2min, y2max, y3min, y3max;
int y0, y1, y2, y3, iy;
int z0, z1, z2, z3, iz;
int gid, status;
int model_type = -1;
double *disc = (double*)NULL;
double *disc2 = (double*)NULL;
double *work = (double*)NULL;
double q[4], fnorm;
char filename[100], contype[200];
double ratime, retime;
double rmin2, rmax2, rsqr;
complex w, w1;
FILE *ofs;
fftw_complex *in=(fftw_complex*)NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p, plan_m;
#else
fftwnd_plan plan_p, plan_m;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "h?f:t:")) != -1) {
switch (c) {
case 't':
model_type = atoi(optarg);
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
if(filename_set==0) strcpy(filename, "cvc.input");
fprintf(stdout, "# Reading input from file %s\n", filename);
read_input_parser(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
fprintf(stdout, "\n**************************************************\n");
fprintf(stdout, "* vp_disc_ft\n");
fprintf(stdout, "**************************************************\n\n");
#ifdef MPI
if(g_cart_id==0) fprintf(stdout, "# Warning: MPI-version not yet available; exit\n");
exit(200);
#endif
/*********************************
* initialize MPI parameters
*********************************/
mpi_init(argc, argv);
/* initialize fftw */
dims[0]=T_global; dims[1]=LX; dims[2]=LY; dims[3]=LZ;
#ifdef MPI
plan_p = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_BACKWARD, FFTW_MEASURE);
plan_m = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_FORWARD, FFTW_MEASURE);
fftwnd_mpi_local_sizes(plan_p, &T, &Tstart, &l_LX_at, &l_LXstart_at, &FFTW_LOC_VOLUME);
#else
plan_p = fftwnd_create_plan(4, dims, FFTW_BACKWARD, FFTW_MEASURE | FFTW_IN_PLACE);
plan_m = fftwnd_create_plan(4, dims, FFTW_FORWARD, FFTW_MEASURE | FFTW_IN_PLACE);
T = T_global;
Tstart = 0;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
#endif
fprintf(stdout, "# [%2d] fftw parameters:\n"\
"# [%2d] T = %3d\n"\
"# [%2d] Tstart = %3d\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, T, g_cart_id, Tstart, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
#ifdef MPI
if(T==0) {
fprintf(stderr, "[%2d] local T is zero; exit\n", g_cart_id);
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(2);
}
#endif
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(1);
}
geometry();
/****************************************
* allocate memory for the contractions
****************************************/
disc = (double*)calloc( 8*VOLUME, sizeof(double));
if( disc == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
disc2 = (double*)calloc( 32*VOLUME, sizeof(double));
if( disc2 == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc2\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
for(ix=0; ix<32*VOLUME; ix++) disc2[ix] = 0.;
work = (double*)calloc(32*VOLUME, sizeof(double));
if( work == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for work\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
/****************************************
* prepare Fourier transformation arrays
****************************************/
in = (fftw_complex*)malloc(FFTW_LOC_VOLUME*sizeof(fftw_complex));
if(in==(fftw_complex*)NULL) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(4);
}
/***************************************
* set model type function
***************************************/
switch (model_type) {
case 0:
model_type_function = pidisc_model;
fprintf(stdout, "# function pointer set to type pidisc_model\n");
case 1:
model_type_function = pidisc_model1;
fprintf(stdout, "# function pointer set to type pidisc_model1\n");
break;
case 2:
model_type_function = pidisc_model2;
fprintf(stdout, "# function pointer set to type pidisc_model2\n");
break;
case 3:
model_type_function = pidisc_model3;
fprintf(stdout, "# function pointer set to type pidisc_model3\n");
break;
default:
model_type_function = NULL;
fprintf(stdout, "# no model function selected; will add zero\n");
break;
}
/****************************************
* prepare the model for pidisc
* - same for all gauge configurations
****************************************/
rmin2 = g_rmin * g_rmin;
rmax2 = g_rmax * g_rmax;
if(model_type > -1) {
for(mu=0; mu<16; mu++) {
model_type_function(model_mrho, model_dcoeff_re, model_dcoeff_im, work, plan_m, mu);
for(x0=-(T-1); x0<T; x0++) {
y0 = (x0 + T_global) % T_global;
for(x1=-(LX-1); x1<LX; x1++) {
y1 = (x1 + LX) % LX;
for(x2=-(LY-1); x2<LY; x2++) {
y2 = (x2 + LY) % LY;
for(x3=-(LZ-1); x3<LZ; x3++) {
y3 = (x3 + LZ) % LZ;
iy = g_ipt[y0][y1][y2][y3];
rsqr = (double)(x1*x1) + (double)(x2*x2) + (double)(x3*x3);
if(rmin2-rsqr<=_Q2EPS && rsqr-rmax2<=_Q2EPS) continue; /* radius in range for data usage, so continue */
disc2[_GWI(mu,iy,VOLUME) ] += work[2*iy ];
disc2[_GWI(mu,iy,VOLUME)+1] += work[2*iy+1];
}}}}
memcpy((void*)in, (void*)(disc2+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(disc2+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
}
} else {
for(ix=0; ix<32*VOLUME; ix++) disc2[ix] = 0.;
}
/***********************************************
* start loop on gauge id.s
***********************************************/
for(gid=g_gaugeid; gid<=g_gaugeid2; gid+=g_gauge_step) {
if(g_cart_id==0) fprintf(stdout, "# Start working on gauge id %d\n", gid);
/* read the new contractions */
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
sprintf(filename, "%s.%.4d.%.4d", filename_prefix, gid, Nsave);
if(g_cart_id==0) fprintf(stdout, "# Reading contraction data from file %s\n", filename);
if(read_lime_contraction(disc, filename, 4, 0) == 106) {
if(g_cart_id==0) fprintf(stderr, "Error, could not read from file %s, continue\n", filename);
continue;
}
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to read contraction: %e seconds\n", retime-ratime);
/************************************************
* prepare \Pi_\mu\nu (x,y)
************************************************/
# ifdef MPI
ratime = MPI_Wtime();
# else
ratime = (double)clock() / CLOCKS_PER_SEC;
# endif
for(x0=-T+1; x0<T; x0++) {
y0min = x0<0 ? -x0 : 0;
y0max = x0<0 ? T : T-x0;
for(x1=-LX+1; x1<LX; x1++) {
y1min = x1<0 ? -x1 : 0;
y1max = x1<0 ? LX : LX-x1;
for(x2=-LY+1; x2<LY; x2++) {
y2min = x2<0 ? -x2 : 0;
y2max = x2<0 ? LY : LY-x2;
for(x3=-LZ+1; x3<LZ; x3++) {
y3min = x3<0 ? -x3 : 0;
y3max = x3<0 ? LZ : LZ-x3;
xx0 = (x0+T ) % T;
xx1 = (x1+LX) % LX;
xx2 = (x2+LX) % LY;
xx3 = (x3+LX) % LZ;
ix = g_ipt[xx0][xx1][xx2][xx3];
rsqr = (double)(x1*x1) + (double)(x2*x2) + (double)(x3*x3);
if(rmin2-rsqr>_Q2EPS || rsqr-rmax2>_Q2EPS) continue;
for(y0=y0min; y0<y0max; y0++) {
z0 = y0 + x0;
for(y1=y1min; y1<y1max; y1++) {
z1 = y1 + x1;
for(y2=y2min; y2<y2max; y2++) {
z2 = y2 + x2;
for(y3=y3min; y3<y3max; y3++) {
z3 = y3 + x3;
iy = g_ipt[y0][y1][y2][y3];
iz = g_ipt[z0][z1][z2][z3];
i=0;
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
iix = _GWI(i,ix,VOLUME);
_co_eq_co_ti_co(&w, (complex*)(disc+_GWI(mu,iz,VOLUME)), (complex*)(disc+_GWI(nu,iy,VOLUME)));
work[iix ] += w.re;
work[iix+1] += w.im;
i++;
}}
}}}}
}}}}
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to calculate \\Pi_\\mu\\nu in position space: %e seconds\n", retime-ratime);
/***********************************************
* Fourier transform
***********************************************/
for(mu=0; mu<16; mu++) {
memcpy((void*)in, (void*)(work+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(work+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
}
fnorm = 1. / ((double)T_global * (double)(LX*LY*LZ));
if(g_cart_id==0) fprintf(stdout, "# P-fnorm = %16.5e\n", fnorm);
for(x0=0; x0<T; x0++) {
q[0] = (double)(x0+Tstart) / (double)T_global;
for(x1=0; x1<LX; x1++) {
q[1] = (double)x1 / (double)LX;
for(x2=0; x2<LY; x2++) {
q[2] = (double)x2 / (double)LY;
for(x3=0; x3<LZ; x3++) {
q[3] = (double)x3 / (double)LZ;
ix = g_ipt[x0][x1][x2][x3];
i=0;
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
iix = _GWI(i,ix,VOLUME);
w.re = cos(M_PI * (q[mu] - q[nu]));
w.im = sin(M_PI * (q[mu] - q[nu]));
work[iix ] = work[iix ] * fnorm + disc2[iix ];
work[iix+1] = work[iix+1] * fnorm + disc2[iix+1];
_co_eq_co_ti_co(&w1, (complex*)(work+iix), &w);
work[iix ] = w1.re;
work[iix+1] = w1.im;
i++;
}}
}}}}
/***********************************************
* save results
***********************************************/
sprintf(filename, "%s.%.4d.%.4d", filename_prefix2, gid, Nsave);
if(g_cart_id==0) fprintf(stdout, "# Saving results to file %s\n", filename);
sprintf(contype, "cvc-disc-P");
write_lime_contraction(work, filename, 64, 16, contype, gid, Nsave);
/*
sprintf(filename, "%sascii.%.4d.%.4d", filename_prefix2, gid, Nsave);
write_contraction(work, NULL, filename, 16, 2, 0);
*/
if(g_cart_id==0) fprintf(stdout, "# Finished working on gauge id %d\n", gid);
} /* of loop on gid */
/***********************************************
* free the allocated memory, finalize
***********************************************/
free_geometry();
fftw_free(in);
free(disc);
free(disc2);
free(work);
#ifdef MPI
fftwnd_mpi_destroy_plan(plan_p);
fftwnd_mpi_destroy_plan(plan_m);
MPI_Finalize();
#else
fftwnd_destroy_plan(plan_p);
fftwnd_destroy_plan(plan_m);
#endif
return(0);
}
int main(int argc, char **argv) {
int c, i, mu, nu;
int count = 0;
int filename_set = 0;
int dims[4] = {0,0,0,0};
int l_LX_at, l_LXstart_at;
int x0, x1, x2, x3, ix, iix;
int dxm[4], dxn[4], ixpm, ixpn;
int sid;
double *disc = (double*)NULL;
double *work = (double*)NULL;
double q[4], fnorm;
int verbose = 0;
int do_gt = 0;
char filename[100];
double ratime, retime;
double plaq, _2kappamu, hpe3_coeff, onepmutilde2, mutilde2;
double spinor1[24], spinor2[24], U_[18], U1_[18], U2_[18];
double *gauge_trafo=(double*)NULL;
complex w, w1, w2, *cp1, *cp2, *cp3;
FILE *ofs;
fftw_complex *in=(fftw_complex*)NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p, plan_m;
int *status;
#else
fftwnd_plan plan_p, plan_m;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "h?vgf:")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'g':
do_gt = 1;
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
set_default_input_values();
if(filename_set==0) strcpy(filename, "cvc.input");
/* read the input file */
read_input(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
if(g_kappa == 0.) {
if(g_proc_id==0) fprintf(stdout, "kappa should be > 0.n");
usage();
}
/* initialize MPI parameters */
mpi_init(argc, argv);
#ifdef MPI
if((status = (int*)calloc(g_nproc, sizeof(int))) == (int*)NULL) {
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(7);
}
#endif
/* initialize fftw */
dims[0]=T_global; dims[1]=LX; dims[2]=LY; dims[3]=LZ;
#ifdef MPI
plan_p = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_BACKWARD, FFTW_MEASURE);
plan_m = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_FORWARD, FFTW_MEASURE);
fftwnd_mpi_local_sizes(plan_p, &T, &Tstart, &l_LX_at, &l_LXstart_at, &FFTW_LOC_VOLUME);
#else
plan_p = fftwnd_create_plan(4, dims, FFTW_BACKWARD, FFTW_MEASURE | FFTW_IN_PLACE);
plan_m = fftwnd_create_plan(4, dims, FFTW_FORWARD, FFTW_MEASURE | FFTW_IN_PLACE);
T = T_global;
Tstart = 0;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
#endif
fprintf(stdout, "# [%2d] fftw parameters:\n"\
"# [%2d] T = %3d\n"\
"# [%2d] Tstart = %3d\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, T, g_cart_id, Tstart, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
#ifdef MPI
if(T==0) {
fprintf(stderr, "[%2d] local T is zero; exit\n", g_cart_id);
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(2);
}
#endif
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(1);
}
geometry();
/* read the gauge field */
alloc_gauge_field(&g_gauge_field, VOLUMEPLUSRAND);
sprintf(filename, "%s.%.4d", gaugefilename_prefix, Nconf);
if(g_cart_id==0) fprintf(stdout, "reading gauge field from file %s\n", filename);
read_lime_gauge_field_doubleprec(filename);
xchange_gauge();
/* measure the plaquette */
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "measured plaquette value: %25.16e\n", plaq);
if(do_gt==1) {
/***********************************
* initialize gauge transformation
***********************************/
init_gauge_trafo(&gauge_trafo, 1.);
apply_gt_gauge(gauge_trafo);
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "measured plaquette value after gauge trafo: %25.16e\n", plaq);
}
/****************************************
* allocate memory for the spinor fields
****************************************/
no_fields = 3;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields; i++) alloc_spinor_field(&g_spinor_field[i], VOLUMEPLUSRAND);
/****************************************
* allocate memory for the contractions
****************************************/
disc = (double*)calloc( 8*VOLUME, sizeof(double));
if( disc == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
work = (double*)calloc(48*VOLUME, sizeof(double));
if( work == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for work\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(3);
}
/****************************************
* prepare Fourier transformation arrays
****************************************/
in = (fftw_complex*)malloc(FFTW_LOC_VOLUME*sizeof(fftw_complex));
if(in==(fftw_complex*)NULL) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(4);
}
/***********************************************
* start loop on source id.s
***********************************************/
for(sid=g_sourceid; sid<=g_sourceid2; sid++) {
/********************************
* read the first propagator
********************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(format==0) {
sprintf(filename, "%s.%.4d.%.2d.inverted", filename_prefix, Nconf, sid);
if(read_lime_spinor(g_spinor_field[2], filename, 0) != 0) break;
}
else if(format==1) {
sprintf(filename, "%s.%.4d.%.5d.inverted", filename_prefix, Nconf, sid);
if(read_cmi(g_spinor_field[2], filename) != 0) break;
}
xchange_field(g_spinor_field[2]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "time to read prop.: %e seconds\n", retime-ratime);
if(do_gt==1) {
/******************************************
* gauge transform the propagators for sid
******************************************/
for(ix=0; ix<VOLUME; ix++) {
_fv_eq_cm_ti_fv(spinor1, gauge_trafo+18*ix, g_spinor_field[2]+_GSI(ix));
_fv_eq_fv(g_spinor_field[2]+_GSI(ix), spinor1);
}
xchange_field(g_spinor_field[2]);
}
/************************************************
* calculate the source: apply Q_phi_tbc
************************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
Q_phi_tbc(g_spinor_field[0], g_spinor_field[2]);
xchange_field(g_spinor_field[0]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "time to calculate source: %e seconds\n", retime-ratime);
/************************************************
* HPE: apply BH5
************************************************/
BH5(g_spinor_field[1], g_spinor_field[2]);
for(ix=0; ix<8*VOLUME; ix++) {disc[ix] = 0.;}
/* add new contractions to (existing) disc */
# ifdef MPI
ratime = MPI_Wtime();
# else
ratime = (double)clock() / CLOCKS_PER_SEC;
# endif
for(mu=0; mu<4; mu++) { /* loop on Lorentz index of the current */
iix = _GWI(mu,0,VOLUME);
for(ix=0; ix<VOLUME; ix++) { /* loop on lattice sites */
_cm_eq_cm_ti_co(U_, &g_gauge_field[_GGI(ix, mu)], &co_phase_up[mu]);
/* first contribution */
_fv_eq_cm_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(g_iup[ix][mu])]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_mi_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(ix)], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
/* second contribution */
_fv_eq_cm_dag_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(ix)]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_pl_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(g_iup[ix][mu])], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
iix += 2;
} /* of ix */
} /* of mu */
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "[%2d] time to contract cvc: %e seconds\n", g_cart_id, retime-ratime);
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
/* Fourier transform data, copy to work */
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(disc+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(work+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
}
/********************************
* read the second propagator
********************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(format==0) {
sprintf(filename, "%s.%.4d.%.2d.inverted", filename_prefix, Nconf, sid+g_resume);
if(read_lime_spinor(g_spinor_field[2], filename, 0) != 0) break;
}
else if(format==1) {
sprintf(filename, "%s.%.4d.%.5d.inverted", filename_prefix, Nconf, sid+g_resume);
if(read_cmi(g_spinor_field[2], filename) != 0) break;
}
xchange_field(g_spinor_field[2]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "time to read prop.: %e seconds\n", retime-ratime);
if(do_gt==1) {
/******************************************
* gauge transform the propagators for sid
******************************************/
for(ix=0; ix<VOLUME; ix++) {
_fv_eq_cm_ti_fv(spinor1, gauge_trafo+18*ix, g_spinor_field[2]+_GSI(ix));
_fv_eq_fv(g_spinor_field[2]+_GSI(ix), spinor1);
}
xchange_field(g_spinor_field[2]);
}
/************************************************
* calculate the source: apply Q_phi_tbc
************************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
Q_phi_tbc(g_spinor_field[0], g_spinor_field[2]);
xchange_field(g_spinor_field[0]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "time to calculate source: %e seconds\n", retime-ratime);
/************************************************
* HPE: apply BH5
************************************************/
BH5(g_spinor_field[1], g_spinor_field[2]);
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
/* add new contractions to (existing) disc */
# ifdef MPI
ratime = MPI_Wtime();
# else
ratime = (double)clock() / CLOCKS_PER_SEC;
# endif
for(mu=0; mu<4; mu++) { /* loop on Lorentz index of the current */
iix = _GWI(mu,0,VOLUME);
for(ix=0; ix<VOLUME; ix++) { /* loop on lattice sites */
_cm_eq_cm_ti_co(U_, &g_gauge_field[_GGI(ix, mu)], &co_phase_up[mu]);
/* first contribution */
_fv_eq_cm_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(g_iup[ix][mu])]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_mi_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(ix)], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
/* second contribution */
_fv_eq_cm_dag_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(ix)]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_pl_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(g_iup[ix][mu])], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
iix += 2;
} /* of ix */
} /* of mu */
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "[%2d] time to contract cvc: %e seconds\n", g_cart_id, retime-ratime);
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
/* Fourier transform data, copy to work */
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(disc+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
memcpy((void*)(work+_GWI(4+mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
}
fnorm = 1. / ((double)(T_global*LX*LY*LZ));
fprintf(stdout, "fnorm = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(work+_GWI(mu,0,VOLUME));
cp2 = (complex*)(work+_GWI(4+nu,0,VOLUME));
cp3 = (complex*)(work+_GWI(8+4*mu+nu,0,VOLUME));
for(x0=0; x0<T; x0++) {
q[0] = (double)(x0+Tstart) / (double)T_global;
for(x1=0; x1<LX; x1++) {
q[1] = (double)(x1) / (double)LX;
for(x2=0; x2<LY; x2++) {
q[2] = (double)(x2) / (double)LY;
for(x3=0; x3<LZ; x3++) {
q[3] = (double)(x3) / (double)LZ;
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI * (q[mu]-q[nu]) );
w.im = sin( M_PI * (q[mu]-q[nu]) );
_co_eq_co_ti_co(&w1, cp1, cp2);
_co_eq_co_ti_co(cp3, &w1, &w);
_co_ti_eq_re(cp3, fnorm);
cp1++; cp2++; cp3++;
}
}
}
}
}
}
/* save the result in momentum space */
sprintf(filename, "cvc_hpe5_ft.%.4d.%.2d", Nconf, sid);
write_contraction(work+_GWI(8,0,VOLUME), NULL, filename, 16, 0, 0);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "time to save cvc results: %e seconds\n", retime-ratime);
} /* of loop on sid */
/***********************************************
* free the allocated memory, finalize
***********************************************/
free(g_gauge_field);
for(i=0; i<no_fields; i++) free(g_spinor_field[i]);
free(g_spinor_field);
free_geometry();
fftw_free(in);
free(disc);
free(work);
#ifdef MPI
fftwnd_mpi_destroy_plan(plan_p);
fftwnd_mpi_destroy_plan(plan_m);
free(status);
MPI_Finalize();
#else
fftwnd_destroy_plan(plan_p);
fftwnd_destroy_plan(plan_m);
#endif
return(0);
}
void testnd_in_place(int rank, int *n, fftw_direction dir,
fftwnd_plan validated_plan,
int alternate_api, int specific, int force_buffered)
{
int local_nx, local_x_start, local_ny_after_transpose,
local_y_start_after_transpose, total_local_size;
int istride;
int N, dim, i;
fftw_complex *in1, *work = 0, *in2;
fftwnd_mpi_plan p = 0;
int flags = measure_flag | wisdom_flag | FFTW_IN_PLACE;
if (specific || rank < 2)
return;
if (coinflip())
flags |= FFTW_THREADSAFE;
if (force_buffered)
flags |= FFTWND_FORCE_BUFFERED;
N = 1;
for (dim = 0; dim < rank; ++dim)
N *= n[dim];
if (alternate_api && (rank == 2 || rank == 3)) {
if (rank == 2)
p = fftw2d_mpi_create_plan(MPI_COMM_WORLD,
n[0], n[1], dir, flags);
else
p = fftw3d_mpi_create_plan(MPI_COMM_WORLD,
n[0], n[1], n[2], dir, flags);
}
else /* standard api */
p = fftwnd_mpi_create_plan(MPI_COMM_WORLD, rank, n, dir, flags);
fftwnd_mpi_local_sizes(p, &local_nx, &local_x_start,
&local_ny_after_transpose,
&local_y_start_after_transpose,
&total_local_size);
in1 = (fftw_complex *) fftw_malloc(total_local_size * MAX_STRIDE
* sizeof(fftw_complex));
if (coinflip()) {
WHEN_VERBOSE(1, my_printf("w/work..."));
work = (fftw_complex *) fftw_malloc(total_local_size * MAX_STRIDE
* sizeof(fftw_complex));
}
in2 = (fftw_complex *) fftw_malloc(N * sizeof(fftw_complex));
for (istride = 1; istride <= MAX_STRIDE; ++istride) {
/* generate random inputs */
for (i = 0; i < N; ++i) {
c_re(in2[i]) = DRAND();
c_im(in2[i]) = DRAND();
}
for (i = 0; i < local_nx * (N/n[0]); ++i) {
int j;
for (j = 0; j < istride; ++j) {
c_re(in1[i * istride + j]) = c_re((in2 + local_x_start
* (N/n[0])) [i]);
c_im(in1[i * istride + j]) = c_im((in2 + local_x_start
* (N/n[0])) [i]);
}
}
fftwnd_mpi(p, istride, in1, work, FFTW_NORMAL_ORDER);
fftwnd(validated_plan, 1, in2, 1, 1, NULL, 0, 0);
for (i = 0; i < istride; ++i)
CHECK(compute_error_complex(in1 + i, istride,
in2 + local_x_start * (N/n[0]),
1, local_nx * (N/n[0])) < TOLERANCE,
"testnd_in_place: wrong answer");
}
fftwnd_mpi_destroy_plan(p);
fftw_free(in2);
fftw_free(work);
fftw_free(in1);
}
void test_planner(int rank)
{
/*
* create and destroy many plans, at random. Check the
* garbage-collecting allocator of twiddle factors
*/
int i, dim;
int r, s;
fftw_mpi_plan p[PLANNER_TEST_SIZE];
fftwnd_mpi_plan pnd[PLANNER_TEST_SIZE];
int *narr, maxdim;
chk_mem_leak = 0;
verbose--;
please_wait();
if (rank < 1)
rank = 1;
narr = (int *) fftw_malloc(rank * sizeof(int));
for (i = 0; i < PLANNER_TEST_SIZE; ++i) {
p[i] = (fftw_mpi_plan) 0;
pnd[i] = (fftwnd_mpi_plan) 0;
}
if (PLANNER_TEST_SIZE >= 8) {
p[0] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_FORWARD, 0);
p[1] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_FORWARD, 0);
p[2] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_BACKWARD, 0);
p[3] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_BACKWARD, 0);
p[4] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_FORWARD, 0);
p[5] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_FORWARD, 0);
p[6] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_BACKWARD, 0);
p[7] = fftw_mpi_create_plan(MPI_COMM_WORLD, 1024, FFTW_BACKWARD, 0);
}
maxdim = (int) pow(8192, 1.0/rank);
for (i = 0; i < PLANNER_TEST_SIZE * PLANNER_TEST_SIZE; ++i) {
r = rand();
if (r < 0)
r = -r;
r = r % PLANNER_TEST_SIZE;
for (dim = 0; dim < rank; ++dim) {
do {
s = rand();
if (s < 0)
s = -s;
s = s % maxdim + 1;
} while (s == 0);
narr[dim] = s;
}
if (rank == 1) {
if (p[r])
fftw_mpi_destroy_plan(p[r]);
p[r] = fftw_mpi_create_plan(MPI_COMM_WORLD,
narr[0], random_dir(),
measure_flag | wisdom_flag);
}
if (rank > 1) {
if (pnd[r])
fftwnd_mpi_destroy_plan(pnd[r]);
pnd[r] = fftwnd_mpi_create_plan(MPI_COMM_WORLD, rank, narr,
random_dir(), measure_flag |
wisdom_flag);
}
if (i % (PLANNER_TEST_SIZE * PLANNER_TEST_SIZE / 20) == 0) {
WHEN_VERBOSE(0, my_printf("test planner: so far so good\n"));
WHEN_VERBOSE(0, my_printf("test planner: iteration %d"
" out of %d\n",
i, PLANNER_TEST_SIZE * PLANNER_TEST_SIZE));
}
}
for (i = 0; i < PLANNER_TEST_SIZE; ++i) {
if (p[i])
fftw_mpi_destroy_plan(p[i]);
if (pnd[i])
fftwnd_mpi_destroy_plan(pnd[i]);
}
fftw_free(narr);
verbose++;
chk_mem_leak = 1;
}
void test_speed_nd_aux(struct size sz,
fftw_direction dir, int flags, int specific)
{
int local_nx, local_x_start, local_ny_after_transpose,
local_y_start_after_transpose, total_local_size;
fftw_complex *in, *work;
fftwnd_plan plan = 0;
fftwnd_mpi_plan mpi_plan;
double t, t0 = 0.0;
int i, N;
if (sz.rank < 2)
return;
/* only bench in-place multi-dim transforms */
flags |= FFTW_IN_PLACE;
N = 1;
for (i = 0; i < sz.rank; ++i)
N *= (sz.narray[i]);
if (specific) {
return;
} else {
if (io_okay && !only_parallel)
plan = fftwnd_create_plan(sz.rank, sz.narray,
dir, speed_flag | flags
| wisdom_flag | no_vector_flag);
mpi_plan = fftwnd_mpi_create_plan(MPI_COMM_WORLD, sz.rank, sz.narray,
dir, speed_flag | flags
| wisdom_flag | no_vector_flag);
}
CHECK(mpi_plan != NULL, "can't create plan");
fftwnd_mpi_local_sizes(mpi_plan, &local_nx, &local_x_start,
&local_ny_after_transpose,
&local_y_start_after_transpose,
&total_local_size);
if (io_okay && !only_parallel)
in = (fftw_complex *) fftw_malloc(N * howmany_fields *
sizeof(fftw_complex));
else
in = (fftw_complex *) fftw_malloc(total_local_size * howmany_fields *
sizeof(fftw_complex));
work = (fftw_complex *) fftw_malloc(total_local_size * howmany_fields *
sizeof(fftw_complex));
if (io_okay && !only_parallel) {
FFTW_TIME_FFT(fftwnd(plan, howmany_fields,
in, howmany_fields, 1, 0, 0, 0),
in, N * howmany_fields, t0);
fftwnd_destroy_plan(plan);
WHEN_VERBOSE(1, printf("time for one fft (uniprocessor): %s\n",
smart_sprint_time(t0)));
}
MPI_TIME_FFT(fftwnd_mpi(mpi_plan, howmany_fields,
in, NULL, FFTW_NORMAL_ORDER),
in, total_local_size * howmany_fields, t);
if (io_okay) {
WHEN_VERBOSE(1, printf("NORMAL: time for one fft (%d cpus): %s",
ncpus, smart_sprint_time(t)));
WHEN_VERBOSE(1, printf(" (%s/point)\n", smart_sprint_time(t / N)));
WHEN_VERBOSE(1, printf("NORMAL: \"mflops\" = 5 (N log2 N) / "
"(t in microseconds)"
" = %f\n", howmany_fields * mflops(t, N)));
if (!only_parallel)
WHEN_VERBOSE(1, printf("NORMAL: parallel speedup: %f\n", t0 / t));
}
MPI_TIME_FFT(fftwnd_mpi(mpi_plan, howmany_fields,
in, NULL, FFTW_TRANSPOSED_ORDER),
in, total_local_size * howmany_fields, t);
if (io_okay) {
WHEN_VERBOSE(1, printf("TRANSP.: time for one fft (%d cpus): %s",
ncpus, smart_sprint_time(t)));
WHEN_VERBOSE(1, printf(" (%s/point)\n", smart_sprint_time(t / N)));
WHEN_VERBOSE(1, printf("TRANSP.: \"mflops\" = 5 (N log2 N) / "
"(t in microseconds)"
" = %f\n", howmany_fields * mflops(t, N)));
if (!only_parallel)
WHEN_VERBOSE(1, printf("TRANSP.: parallel speedup: %f\n", t0 / t));
}
MPI_TIME_FFT(fftwnd_mpi(mpi_plan, howmany_fields,
in, work, FFTW_NORMAL_ORDER),
in, total_local_size * howmany_fields, t);
if (io_okay) {
WHEN_VERBOSE(1, printf("NORMAL,w/WORK: time for one fft (%d cpus): %s",
ncpus, smart_sprint_time(t)));
WHEN_VERBOSE(1, printf(" (%s/point)\n", smart_sprint_time(t / N)));
WHEN_VERBOSE(1, printf("NORMAL,w/WORK: \"mflops\" = 5 (N log2 N) / "
"(t in microseconds)"
" = %f\n", howmany_fields * mflops(t, N)));
if (!only_parallel)
WHEN_VERBOSE(1, printf("NORMAL,w/WORK: parallel speedup: %f\n", t0 / t));
}
MPI_TIME_FFT(fftwnd_mpi(mpi_plan, howmany_fields,
in, work, FFTW_TRANSPOSED_ORDER),
in, total_local_size * howmany_fields, t);
if (io_okay) {
WHEN_VERBOSE(1, printf("TRANSP.,w/WORK: time for one fft (%d cpus): %s",
ncpus, smart_sprint_time(t)));
WHEN_VERBOSE(1, printf(" (%s/point)\n", smart_sprint_time(t / N)));
WHEN_VERBOSE(1, printf("TRANSP.,w/WORK: \"mflops\" = 5 (N log2 N) / "
"(t in microseconds)"
" = %f\n", howmany_fields * mflops(t, N)));
if (!only_parallel)
WHEN_VERBOSE(1, printf("TRANSP.,w/WORK: parallel speedup: %f\n", t0 / t));
}
fftwnd_mpi_destroy_plan(mpi_plan);
fftw_free(in);
fftw_free(work);
WHEN_VERBOSE(1, my_printf("\n"));
}
int main(int argc, char **argv) {
int c, i, mu, nu;
int count = 0;
int filename_set = 0;
int dims[4] = {0,0,0,0};
int l_LX_at, l_LXstart_at;
int x0, x1, x2, x3, ix, iix;
int sid, status;
double *disc = (double*)NULL;
double *data = (double*)NULL;
double *bias = (double*)NULL;
double *work = (double*)NULL;
double q[4], fnorm;
int verbose = 0;
char filename[100], contype[200];
double ratime, retime;
double plaq;
double spinor1[24], spinor2[24], U_[18];
complex w, w1, *cp1, *cp2, *cp3, *cp4;
fftw_complex *in=(fftw_complex*)NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p, plan_m;
#else
fftwnd_plan plan_p, plan_m;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "h?vf:")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
if(filename_set==0) strcpy(filename, "cvc.input");
fprintf(stdout, "# Reading input from file %s\n", filename);
read_input_parser(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
if(g_kappa <= 0.) {
if(g_proc_id==0) fprintf(stdout, "kappa should be > 0.\n");
usage();
}
if(hpe_order%2==0 && hpe_order>0) {
if(g_proc_id==0) fprintf(stdout, "HPE order should be odd\n");
usage();
}
fprintf(stdout, "\n**************************************************\n"\
"* vp_disc_hpe_stoch_subtract with HPE of order %d\n"\
"**************************************************\n\n", hpe_order);
/*********************************
* initialize MPI parameters
*********************************/
mpi_init(argc, argv);
/* initialize fftw */
dims[0]=T_global; dims[1]=LX; dims[2]=LY; dims[3]=LZ;
#ifdef MPI
plan_p = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_BACKWARD, FFTW_MEASURE);
plan_m = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_FORWARD, FFTW_MEASURE);
fftwnd_mpi_local_sizes(plan_p, &T, &Tstart, &l_LX_at, &l_LXstart_at, &FFTW_LOC_VOLUME);
#else
plan_p = fftwnd_create_plan(4, dims, FFTW_BACKWARD, FFTW_MEASURE | FFTW_IN_PLACE);
plan_m = fftwnd_create_plan(4, dims, FFTW_FORWARD, FFTW_MEASURE | FFTW_IN_PLACE);
T = T_global;
Tstart = 0;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
#endif
fprintf(stdout, "# [%2d] fftw parameters:\n"\
"# [%2d] T = %3d\n"\
"# [%2d] Tstart = %3d\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, T, g_cart_id, Tstart, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
#ifdef MPI
if(T==0) {
fprintf(stderr, "[%2d] local T is zero; exit\n", g_cart_id);
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(101);
}
#endif
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(102);
}
geometry();
/************************************************
* read the gauge field, measure the plaquette
************************************************/
alloc_gauge_field(&g_gauge_field, VOLUMEPLUSRAND);
sprintf(filename, "%s.%.4d", gaugefilename_prefix, Nconf);
if(g_cart_id==0) fprintf(stdout, "# reading gauge field from file %s\n", filename);
read_lime_gauge_field_doubleprec(filename);
xchange_gauge();
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "# measured plaquette value: %25.16e\n", plaq);
/****************************************
* allocate memory for the spinor fields
****************************************/
no_fields = 3;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields; i++) alloc_spinor_field(&g_spinor_field[i], VOLUMEPLUSRAND);
/****************************************
* allocate memory for the contractions
****************************************/
disc = (double*)calloc(16*VOLUME, sizeof(double));
if( disc == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(103);
}
data = (double*)calloc(16*VOLUME, sizeof(double));
if( data== (double*)NULL ) {
fprintf(stderr, "could not allocate memory for data\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(104);
}
for(ix=0; ix<16*VOLUME; ix++) data[ix] = 0.;
work = (double*)calloc(32*VOLUME, sizeof(double));
if( work == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for work\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(105);
}
bias = (double*)calloc(32*VOLUME, sizeof(double));
if( bias == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for bias\n");
# ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
# endif
exit(106);
}
for(ix=0; ix<32*VOLUME; ix++) bias[ix] = 0.;
/****************************************
* prepare Fourier transformation arrays
****************************************/
in = (fftw_complex*)malloc(FFTW_LOC_VOLUME*sizeof(fftw_complex));
if(in==(fftw_complex*)NULL) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(107);
}
/***********************************************
* start loop on source id.s
***********************************************/
for(sid=g_sourceid; sid<=g_sourceid2; sid+=g_sourceid_step) {
for(ix=0; ix<16*VOLUME; ix++) disc[ix] = 0.;
/* read the new propagator */
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(format==0) {
sprintf(filename, "%s.%.4d.%.2d.inverted", filename_prefix, Nconf, sid);
if(read_lime_spinor(g_spinor_field[2], filename, 0) != 0) break;
}
else if(format==1) {
sprintf(filename, "%s.%.4d.%.5d.inverted", filename_prefix, Nconf, sid);
if(read_cmi(g_spinor_field[2], filename) != 0) break;
}
xchange_field(g_spinor_field[2]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to read prop.: %e seconds\n", retime-ratime);
count++;
/************************************************
* calculate the source: apply Q_phi_tbc
************************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
Q_phi_tbc(g_spinor_field[0], g_spinor_field[2]);
xchange_field(g_spinor_field[0]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to calculate source: %e seconds\n", retime-ratime);
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
/************************************************
* HPE: apply BH to order hpe_order+2
************************************************/
if(hpe_order>0) {
BHn(g_spinor_field[1], g_spinor_field[2], hpe_order+2);
} else {
memcpy((void*)g_spinor_field[1], (void*)g_spinor_field[2], 24*VOLUMEPLUSRAND*sizeof(double));
}
/************************************************
* add new contractions to (existing) disc
************************************************/
for(mu=0; mu<4; mu++) {
iix = _GWI(mu,0,VOLUME);
for(ix=0; ix<VOLUME; ix++) {
_cm_eq_cm_ti_co(U_, &g_gauge_field[_GGI(ix, mu)], &co_phase_up[mu]);
_fv_eq_cm_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(g_iup[ix][mu])]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_mi_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(ix)], spinor2);
disc[iix ] = -0.5 * w.re;
disc[iix+1] = -0.5 * w.im;
data[iix ] -= 0.5 * w.re;
data[iix+1] -= 0.5 * w.im;
_fv_eq_cm_dag_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(ix)]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_pl_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(g_iup[ix][mu])], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
data[iix ] -= 0.5 * w.re;
data[iix+1] -= 0.5 * w.im;
iix += 2;
}
}
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to contract cvc: %e seconds\n", retime-ratime);
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(disc+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
memcpy((void*)(disc+_GWI(4+mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
memcpy((void*)in, (void*)(disc+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(disc+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
} /* of mu =0 ,..., 3*/
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(disc+_GWI(mu, 0,VOLUME));
cp2 = (complex*)(disc+_GWI(4+nu, 0,VOLUME));
cp3 = (complex*)(bias+_GWI(4*mu+nu,0,VOLUME));
for(ix=0; ix<VOLUME; ix++) {
_co_eq_co_ti_co(&w1, cp1, cp2);
cp3->re += w1.re;
cp3->im += w1.im;
cp1++; cp2++; cp3++;
}
}}
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time for Fourier trafo and adding to bias: %e seconds\n",
retime-ratime);
} /* of loop on sid */
/************************************************
* save results for count == Nsave
************************************************/
if(count==Nsave) {
if(g_cart_id == 0) fprintf(stdout, "# save results for count = %d\n", count);
for(ix=0; ix<16*VOLUME; ix++) disc[ix] = 0.;
if(hpe_order>0) {
sprintf(filename, "vp_disc_hpe%.2d_loops_X.%.4d", hpe_order, Nconf);
if(g_cart_id==0) fprintf(stdout, "# reading loop part from file %s\n", filename);
if( (status = read_lime_contraction(disc, filename, 4, 0)) != 0 ) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(108);
}
}
/* save the result in position space */
fnorm = 1. / ( (double)count * g_prop_normsqr );
if(g_cart_id==0) fprintf(stdout, "# X-fnorm = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(ix=0; ix<VOLUME; ix++) {
work[_GWI(mu,ix,VOLUME) ] = data[_GWI(mu,ix,VOLUME) ] * fnorm + disc[_GWI(mu,ix,VOLUME) ];
work[_GWI(mu,ix,VOLUME)+1] = data[_GWI(mu,ix,VOLUME)+1] * fnorm + disc[_GWI(mu,ix,VOLUME)+1];
}
}
sprintf(filename, "vp_disc_hpe%.2d_subtracted_X.%.4d.%.4d", hpe_order, Nconf, count);
sprintf(contype, "cvc-disc-hpe-loops-%2d-to-%2d-stoch-subtracted-X", hpe_order, hpe_order+2);
write_lime_contraction(work, filename, 64, 4, contype, Nconf, count);
/*
sprintf(filename, "vp_disc_hpe%.2d_subtracted_X.%.4d.%.4d.ascii", hpe_order, Nconf, count);
write_contraction(work, NULL, filename, 4, 2, 0);
*/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(data+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
memcpy((void*)(data+_GWI(4+mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
memcpy((void*)in, (void*)(data+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(data+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
}
fnorm = 1. / ( g_prop_normsqr*g_prop_normsqr * (double)count * (double)(count-1) );
if(g_cart_id==0) fprintf(stdout, "# P-fnorm for purely stochastic part = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(data+_GWI(mu, 0,VOLUME));
cp2 = (complex*)(data+_GWI(4+nu, 0,VOLUME));
cp3 = (complex*)(work+_GWI(4*mu+nu,0,VOLUME));
cp4 = (complex*)(bias+_GWI(4*mu+nu,0,VOLUME));
for(ix=0; ix<VOLUME; ix++) {
_co_eq_co_ti_co(&w1, cp1, cp2);
cp3->re = ( w1.re - cp4->re ) * fnorm;
cp3->im = ( w1.im - cp4->im ) * fnorm;
cp1++; cp2++; cp3++; cp4++;
}
}}
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(disc+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
memcpy((void*)(disc+_GWI(4+mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
memcpy((void*)in, (void*)(disc+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(disc+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
}
fnorm = 1. / ( g_prop_normsqr * (double)count );
if(g_cart_id==0) fprintf(stdout, "# P-fnorm for mixed stochastic-loop part = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(data + _GWI(mu, 0,VOLUME));
cp2 = (complex*)(disc + _GWI(4+nu, 0,VOLUME));
cp3 = (complex*)(work + _GWI(4*mu+nu,0,VOLUME));
for(ix=0; ix<VOLUME; ix++) {
_co_eq_co_ti_co(&w1, cp1, cp2);
cp3->re += w1.re * fnorm;
cp3->im += w1.im * fnorm;
cp1++; cp2++; cp3++;
}
cp1 = (complex*)(disc + _GWI(mu, 0,VOLUME));
cp2 = (complex*)(data + _GWI(4+nu, 0,VOLUME));
cp3 = (complex*)(work + _GWI(4*mu+nu,0,VOLUME));
for(ix=0; ix<VOLUME; ix++) {
_co_eq_co_ti_co(&w1, cp1, cp2);
cp3->re += w1.re * fnorm;
cp3->im += w1.im * fnorm;
cp1++; cp2++; cp3++;
}
}}
fnorm = 1. / ( (double)T_global * (double)(LX*LY*LZ) );
if(g_cart_id==0) fprintf(stdout, "# P-fnorm for final estimator (1/T/V) = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(disc + _GWI(mu, 0,VOLUME));
cp2 = (complex*)(disc + _GWI(4+nu, 0,VOLUME));
cp3 = (complex*)(work + _GWI(4*mu+nu,0,VOLUME));
for(x0=0; x0<T; x0++) {
q[0] = (double)(x0+Tstart) / (double)T_global;
for(x1=0; x1<LX; x1++) {
q[1] = (double)x1 / (double)LX;
for(x2=0; x2<LY; x2++) {
q[2] = (double)x2 / (double)LY;
for(x3=0; x3<LZ; x3++) {
q[3] = (double)x3 / (double)LZ;
ix = g_ipt[x0][x1][x2][x3];
w.re = cos(M_PI * ( q[mu] - q[nu] ) );
w.im = sin(M_PI * ( q[mu] - q[nu] ) );
_co_eq_co_ti_co(&w1, cp1, cp2);
cp3->re += w1.re;
cp3->im += w1.im;
_co_eq_co_ti_co(&w1, cp3, &w);
cp3->re = w1.re * fnorm;
cp3->im = w1.im * fnorm;
cp1++; cp2++; cp3++;
}}}}
}}
sprintf(filename, "vp_disc_hpe%.2d_subtracted_P.%.4d.%.4d", hpe_order, Nconf, count);
sprintf(contype, "cvc-disc-hpe-loops-%2d-to-%2d-stoch-subtracted-P", hpe_order, hpe_order+2);
write_lime_contraction(work, filename, 64, 16, contype, Nconf, count);
/*
sprintf(filename, "vp_disc_hpe%.2d_subtracted_P.%.4d.%.4d.ascii", hpe_order, Nconf, count);
write_contraction(work, NULL, filename, 16, 2, 0);
*/
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "# time to save cvc results: %e seconds\n", retime-ratime);
} /* of if count == Nsave */
/***********************************************
* free the allocated memory, finalize
***********************************************/
free(g_gauge_field);
for(i=0; i<no_fields; i++) free(g_spinor_field[i]);
free(g_spinor_field);
free_geometry();
fftw_free(in);
free(disc);
free(bias);
free(data);
free(work);
#ifdef MPI
fftwnd_mpi_destroy_plan(plan_p);
fftwnd_mpi_destroy_plan(plan_m);
MPI_Finalize();
#else
fftwnd_destroy_plan(plan_p);
fftwnd_destroy_plan(plan_m);
#endif
return(0);
}
maxwell_data *create_maxwell_data(int nx, int ny, int nz,
int *local_N, int *N_start, int *alloc_N,
int num_bands,
int max_fft_bands)
{
int n[3], rank = (nz == 1) ? (ny == 1 ? 1 : 2) : 3;
maxwell_data *d = 0;
int fft_data_size;
n[0] = nx;
n[1] = ny;
n[2] = nz;
#if !defined(HAVE_FFTW) && !defined(HAVE_FFTW3)
# error Non-FFTW FFTs are not currently supported.
#endif
#if defined(HAVE_FFTW)
CHECK(sizeof(fftw_real) == sizeof(real),
"floating-point type is inconsistent with FFTW!");
#endif
CHK_MALLOC(d, maxwell_data, 1);
d->nx = nx;
d->ny = ny;
d->nz = nz;
d->max_fft_bands = MIN2(num_bands, max_fft_bands);
maxwell_set_num_bands(d, num_bands);
d->current_k[0] = d->current_k[1] = d->current_k[2] = 0.0;
d->parity = NO_PARITY;
d->last_dim_size = d->last_dim = n[rank - 1];
/* ----------------------------------------------------- */
d->nplans = 1;
#ifndef HAVE_MPI
d->local_nx = nx; d->local_ny = ny;
d->local_x_start = d->local_y_start = 0;
*local_N = *alloc_N = nx * ny * nz;
*N_start = 0;
d->other_dims = *local_N / d->last_dim;
d->fft_data = 0; /* initialize it here for use in specific planner? */
# if defined(HAVE_FFTW3)
d->nplans = 0; /* plans will be created as needed */
# ifdef SCALAR_COMPLEX
d->fft_output_size = fft_data_size = nx * ny * nz;
# else
d->last_dim_size = 2 * (d->last_dim / 2 + 1);
d->fft_output_size = (fft_data_size = d->other_dims * d->last_dim_size)/2;
# endif
# elif defined(HAVE_FFTW)
# ifdef SCALAR_COMPLEX
d->fft_output_size = fft_data_size = nx * ny * nz;
d->plans[0] = fftwnd_create_plan_specific(rank, n, FFTW_BACKWARD,
FFTW_ESTIMATE | FFTW_IN_PLACE,
(fftw_complex*) d->fft_data,
3 * d->num_fft_bands,
(fftw_complex*) d->fft_data,
3 * d->num_fft_bands);
d->iplans[0] = fftwnd_create_plan_specific(rank, n, FFTW_FORWARD,
FFTW_ESTIMATE | FFTW_IN_PLACE,
(fftw_complex*) d->fft_data,
3 * d->num_fft_bands,
(fftw_complex*) d->fft_data,
3 * d->num_fft_bands);
# else /* not SCALAR_COMPLEX */
d->last_dim_size = 2 * (d->last_dim / 2 + 1);
d->fft_output_size = (fft_data_size = d->other_dims * d->last_dim_size)/2;
d->plans[0] = rfftwnd_create_plan_specific(rank, n, FFTW_COMPLEX_TO_REAL,
FFTW_ESTIMATE | FFTW_IN_PLACE,
(fftw_real*) d->fft_data,
3 * d->num_fft_bands,
(fftw_real*) d->fft_data,
3 * d->num_fft_bands);
d->iplans[0] = rfftwnd_create_plan_specific(rank, n, FFTW_REAL_TO_COMPLEX,
FFTW_ESTIMATE | FFTW_IN_PLACE,
(fftw_real*) d->fft_data,
3 * d->num_fft_bands,
(fftw_real*) d->fft_data,
3 * d->num_fft_bands);
# endif /* not SCALAR_COMPLEX */
# endif /* HAVE_FFTW */
#else /* HAVE_MPI */
/* ----------------------------------------------------- */
# if defined(HAVE_FFTW3)
{
int i;
ptrdiff_t np[3], local_nx, local_ny, local_x_start, local_y_start;
CHECK(rank > 1, "rank < 2 MPI computations are not supported");
d->nplans = 0; /* plans will be created as needed */
for (i = 0; i < rank; ++i) np[i] = n[i];
# ifndef SCALAR_COMPLEX
d->last_dim_size = 2 * (np[rank-1] = d->last_dim / 2 + 1);
# endif
fft_data_size = *alloc_N
= FFTW(mpi_local_size_transposed)(rank, np, MPI_COMM_WORLD,
&local_nx, &local_x_start,
&local_ny, &local_y_start);
# ifndef SCALAR_COMPLEX
fft_data_size = (*alloc_N *= 2); // convert to # of real scalars
# endif
d->local_nx = local_nx;
d->local_x_start = local_x_start;
d->local_ny = local_ny;
d->local_y_start = local_y_start;
d->fft_output_size = nx * d->local_ny * (rank==3 ? np[2] : nz);
*local_N = d->local_nx * ny * nz;
*N_start = d->local_x_start * ny * nz;
d->other_dims = *local_N / d->last_dim;
}
# elif defined(HAVE_FFTW)
CHECK(rank > 1, "rank < 2 MPI computations are not supported");
# ifdef SCALAR_COMPLEX
d->iplans[0] = fftwnd_mpi_create_plan(MPI_COMM_WORLD, rank, n,
FFTW_FORWARD,
FFTW_ESTIMATE | FFTW_IN_PLACE);
{
int nt[3]; /* transposed dimensions for reverse FFT */
nt[0] = n[1]; nt[1] = n[0]; nt[2] = n[2];
d->plans[0] = fftwnd_mpi_create_plan(MPI_COMM_WORLD, rank, nt,
FFTW_BACKWARD,
FFTW_ESTIMATE | FFTW_IN_PLACE);
}
fftwnd_mpi_local_sizes(d->iplans[0], &d->local_nx, &d->local_x_start,
&d->local_ny, &d->local_y_start,
&fft_data_size);
d->fft_output_size = nx * d->local_ny * nz;
# else /* not SCALAR_COMPLEX */
CHECK(rank > 1, "rank < 2 MPI computations are not supported");
d->iplans[0] = rfftwnd_mpi_create_plan(MPI_COMM_WORLD, rank, n,
FFTW_REAL_TO_COMPLEX,
FFTW_ESTIMATE | FFTW_IN_PLACE);
/* Unlike fftwnd_mpi, we do *not* pass transposed dimensions for
the reverse transform here--we always pass the dimensions of the
original real array, and rfftwnd_mpi assumes that if one
transform is transposed, then the other is as well. */
d->plans[0] = rfftwnd_mpi_create_plan(MPI_COMM_WORLD, rank, n,
FFTW_COMPLEX_TO_REAL,
FFTW_ESTIMATE | FFTW_IN_PLACE);
rfftwnd_mpi_local_sizes(d->iplans[0], &d->local_nx, &d->local_x_start,
&d->local_ny, &d->local_y_start,
&fft_data_size);
d->last_dim_size = 2 * (d->last_dim / 2 + 1);
if (rank == 2)
d->fft_output_size = nx * d->local_ny * nz;
else
d->fft_output_size = nx * d->local_ny * (d->last_dim_size / 2);
# endif /* not SCALAR_COMPLEX */
*local_N = d->local_nx * ny * nz;
*N_start = d->local_x_start * ny * nz;
*alloc_N = *local_N;
d->other_dims = *local_N / d->last_dim;
# endif /* HAVE_FFTW */
#endif /* HAVE_MPI */
/* ----------------------------------------------------- */
#ifdef HAVE_FFTW
CHECK(d->plans[0] && d->iplans[0], "FFTW plan creation failed");
#endif
CHK_MALLOC(d->eps_inv, symmetric_matrix, d->fft_output_size);
/* A scratch output array is required because the "ordinary" arrays
are not in a cartesian basis (or even a constant basis). */
fft_data_size *= d->max_fft_bands;
#if defined(HAVE_FFTW3)
d->fft_data = (scalar *) FFTW(malloc)(sizeof(scalar) * 3 * fft_data_size);
CHECK(d->fft_data, "out of memory!");
d->fft_data2 = d->fft_data; /* works in-place */
#else
CHK_MALLOC(d->fft_data, scalar, 3 * fft_data_size);
d->fft_data2 = d->fft_data; /* works in-place */
#endif
CHK_MALLOC(d->k_plus_G, k_data, *local_N);
CHK_MALLOC(d->k_plus_G_normsqr, real, *local_N);
d->eps_inv_mean = 1.0;
d->local_N = *local_N;
d->N_start = *N_start;
d->alloc_N = *alloc_N;
d->N = nx * ny * nz;
return d;
}
int main(int argc, char **argv) {
int c, i, mu, nu;
int count = 0;
int filename_set = 0;
int dims[4] = {0,0,0,0};
int l_LX_at, l_LXstart_at;
int x0, x1, x2, x3, ix, iix;
int sx0, sx1, sx2, sx3;
int sid;
double *disc = (double*)NULL;
double *disc2 = (double*)NULL;
double *work = (double*)NULL;
double q[4], fnorm;
double cvc_lnuy[8];
double *gauge_trafo=(double*)NULL;
double unit_trace[2], D_trace[2];
int verbose = 0;
int do_gt = 0;
char filename[100];
double ratime, retime;
double plaq;
double spinor1[24], spinor2[24], U_[18];
complex w, w1, *cp1, *cp2, *cp3;
FILE *ofs;
fftw_complex *in=(fftw_complex*)NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p;
int *status;
#else
fftwnd_plan plan_p;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "h?vgf:")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'g':
do_gt = 1;
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
set_default_input_values();
if(filename_set==0) strcpy(filename, "cvc.input");
/* read the input file */
read_input(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
if(g_kappa == 0.) {
if(g_proc_id==0) fprintf(stdout, "kappa should be > 0.n");
usage();
}
/* initialize MPI parameters */
mpi_init(argc, argv);
#ifdef MPI
if((status = (int*)calloc(g_nproc, sizeof(int))) == (int*)NULL) {
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(7);
}
#endif
/* initialize fftw */
dims[0]=T_global; dims[1]=LX; dims[2]=LY; dims[3]=LZ;
#ifdef MPI
plan_p = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_BACKWARD, FFTW_MEASURE);
fftwnd_mpi_local_sizes(plan_p, &T, &Tstart, &l_LX_at, &l_LXstart_at, &FFTW_LOC_VOLUME);
#else
plan_p = fftwnd_create_plan(4, dims, FFTW_BACKWARD, FFTW_MEASURE | FFTW_IN_PLACE);
T = T_global;
Tstart = 0;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
#endif
fprintf(stdout, "# [%2d] fftw parameters:\n"\
"# [%2d] T = %3d\n"\
"# [%2d] Tstart = %3d\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, T, g_cart_id, Tstart, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
#ifdef MPI
if(T==0) {
fprintf(stderr, "[%2d] local T is zero; exit\n", g_cart_id);
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(2);
}
#endif
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(1);
}
geometry();
/* read the gauge field */
alloc_gauge_field(&g_gauge_field, VOLUMEPLUSRAND);
sprintf(filename, "%s.%.4d", gaugefilename_prefix, Nconf);
if(g_cart_id==0) fprintf(stdout, "reading gauge field from file %s\n", filename);
read_lime_gauge_field_doubleprec(filename);
xchange_gauge();
/* measure the plaquette */
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "measured plaquette value: %25.16e\n", plaq);
/* get the source location coordinates */
sx0 = g_source_location / (LX*LY*LZ );
sx1 = ( g_source_location % (LX*LY*LZ) ) / (LY*LZ);
sx2 = ( g_source_location % (LY*LZ) ) / LZ;
sx3 = ( g_source_location % LZ );
/* read the data for lnuy */
sprintf(filename, "cvc_lnuy_X.%.4d", Nconf);
ofs = fopen(filename, "r");
fprintf(stdout, "reading cvc lnuy from file %s\n", filename);
for(mu=0; mu<4; mu++) {
fscanf(ofs, "%lf%lf", cvc_lnuy+2*mu, cvc_lnuy+2*mu+1);
}
fclose(ofs);
/* allocate memory for the spinor fields */
no_fields = 2;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields; i++) alloc_spinor_field(&g_spinor_field[i], VOLUMEPLUSRAND);
/****************************************
* allocate memory for the contractions
****************************************/
disc = (double*)calloc(8*VOLUME, sizeof(double));
if( disc == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(3);
}
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
disc2 = (double*)calloc(8*VOLUME, sizeof(double));
if( disc2 == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc2\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(3);
}
for(ix=0; ix<8*VOLUME; ix++) disc2[ix] = 0.;
work = (double*)calloc(48*VOLUME, sizeof(double));
if( work == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for work\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(3);
}
/****************************************
* prepare Fourier transformation arrays
****************************************/
in = (fftw_complex*)malloc(FFTW_LOC_VOLUME*sizeof(fftw_complex));
if(in==(fftw_complex*)NULL) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(4);
}
if(g_resume==1) { /* read current disc from file */
sprintf(filename, ".outcvc_current.%.4d", Nconf);
c = read_contraction(disc, &count, filename, 8);
#ifdef MPI
MPI_Gather(&c, 1, MPI_INT, status, 1, MPI_INT, 0, g_cart_grid);
if(g_cart_id==0) {
/* check the entries in status */
for(i=0; i<g_nproc; i++)
if(status[i]!=0) { status[0] = 1; break; }
}
MPI_Bcast(status, 1, MPI_INT, 0, g_cart_grid);
if(status[0]==1) {
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
count = 0;
}
#else
if(c != 0) {
fprintf(stdout, "could not read current disc; start new\n");
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
count = 0;
}
#endif
if(g_cart_id==0) fprintf(stdout, "starting with count = %d\n", count);
} /* of g_resume == 1 */
if(do_gt==1) {
/***********************************
* initialize gauge transformation
***********************************/
init_gauge_trafo(&gauge_trafo,1.0);
fprintf(stdout, "applying gauge trafo to gauge field\n");
apply_gt_gauge(gauge_trafo);
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "plaquette plaq = %25.16e\n", plaq);
}
unit_trace[0] = 0.;
unit_trace[1] = 0.;
D_trace[0] = 0.;
D_trace[1] = 0.;
/****************************************
* start loop on source id.s
****************************************/
for(sid=g_sourceid; sid<=g_sourceid2; sid++) {
/****************************************
* read the new propagator
****************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
/****************************************
* check: write source before D-appl.
****************************************/
/*
if(format==0) {
sprintf(filename, "%s.%.4d.%.2d", filename_prefix, Nconf, sid);
read_lime_spinor(g_spinor_field[0], filename, 0);
}
for(ix=0; ix<12*VOLUME; ix++) {
fprintf(stdout, "source: %6d%25.16e%25.16e\n", ix, g_spinor_field[0][2*ix], g_spinor_field[0][2*ix+1]);
}
*/
if(format==0) {
sprintf(filename, "%s.%.4d.%.2d.inverted", filename_prefix, Nconf, sid);
/* sprintf(filename, "%s.%.4d.%.2d", filename_prefix, Nconf, sid); */
if(read_lime_spinor(g_spinor_field[1], filename, 0) != 0) break;
}
else if(format==1) {
sprintf(filename, "%s.%.4d.%.5d.inverted", filename_prefix, Nconf, sid);
if(read_cmi(g_spinor_field[1], filename) != 0) break;
}
xchange_field(g_spinor_field[1]);
if(do_gt==1) {
fprintf(stdout, "applying gt on propagators\n");
for(ix=0; ix<VOLUME; ix++) {
_fv_eq_cm_ti_fv(spinor1, gauge_trafo+18*ix, g_spinor_field[1]+_GSI(ix));
_fv_eq_fv(g_spinor_field[1]+_GSI(ix), spinor1);
}
}
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "time to read prop.: %e seconds\n", retime-ratime);
count++;
/****************************************
* calculate the source: apply Q_phi_tbc
****************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
Q_phi_tbc(g_spinor_field[0], g_spinor_field[1]);
xchange_field(g_spinor_field[0]);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "time to calculate source: %e seconds\n", retime-ratime);
/****************************************
* check: write source after D-appl.
****************************************/
/*
for(ix=0; ix<12*VOLUME; ix++) {
fprintf(stdout, "D_source: %6d%25.16e%25.16e\n", ix, g_spinor_field[0][2*ix], g_spinor_field[0][2*ix+1]);
}
*/
/****************************************
* add new contractions to (existing) disc
****************************************/
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
for(mu=0; mu<4; mu++) { /* loop on Lorentz index of the current */
iix = _GWI(mu,0,VOLUME);
for(ix=0; ix<VOLUME; ix++) { /* loop on lattice sites */
_cm_eq_cm_ti_co(U_, &g_gauge_field[_GGI(ix, mu)], &co_phase_up[mu]);
/* first contribution */
_fv_eq_cm_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(g_iup[ix][mu])]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_mi_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(ix)], spinor2);
disc[iix ] -= 0.5 * w.re;
disc[iix+1] -= 0.5 * w.im;
/* second contribution */
_fv_eq_cm_dag_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(ix)]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_pl_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(g_iup[ix][mu])], spinor2);
disc2[iix ] -= 0.5 * w.re;
disc2[iix+1] -= 0.5 * w.im;
iix += 2;
} /* of ix */
} /* of mu */
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "[%2d] contractions for CVC in %e seconds\n", g_cart_id, retime-ratime);
/***************************************************
* check: convergence of trace of unit matrix
***************************************************/
_co_eq_fv_dag_ti_fv(&w, g_spinor_field[0]+_GSI(g_source_location), g_spinor_field[0]+_GSI(g_source_location));
unit_trace[0] += w.re;
unit_trace[1] += w.im;
fprintf(stdout, "unit_trace: %4d%25.16e%25.16e\n", count, w.re, w.im);
_co_eq_fv_dag_ti_fv(&w, g_spinor_field[0]+_GSI(g_source_location), g_spinor_field[0]+_GSI(g_iup[g_source_location][0]));
fprintf(stdout, "shift_trace: %4d%25.16e%25.16e\n", count, w.re, w.im);
/***************************************************
* check: convergence of trace D_u(source_location, source_location)
***************************************************/
Q_phi_tbc(g_spinor_field[1], g_spinor_field[0]);
_co_eq_fv_dag_ti_fv(&w, g_spinor_field[0]+_GSI(g_source_location), g_spinor_field[1]+_GSI(g_source_location));
D_trace[0] += w.re;
D_trace[1] += w.im;
/* fprintf(stdout, "D_trace: %4d%25.16e%25.16e\n", count, D_trace[0]/(double)count, D_trace[1]/(double)count); */
fprintf(stdout, "D_trace: %4d%25.16e%25.16e\n", count, w.re, w.im);
/***************************************************
* save results for count = multiple of Nsave
***************************************************/
if(count%Nsave == 0) {
if(g_cart_id == 0) fprintf(stdout, "save results for count = %d\n", count);
/* save the result in position space */
/* divide by number of propagators */
for(ix=0; ix<8*VOLUME; ix++) work[ix] = disc[ix] / (double)count;
sprintf(filename, "outcvc_Xm.%.4d.%.4d", Nconf, count);
write_contraction(work, NULL, filename, 4, 2, 0);
for(ix=0; ix<8*VOLUME; ix++) work[ix] = disc2[ix] / (double)count;
sprintf(filename, "outcvc_Xp.%.4d.%.4d", Nconf, count);
write_contraction(work, NULL, filename, 4, 2, 0);
for(ix=0; ix<8*VOLUME; ix++) work[ix] = (disc[ix] + disc2[ix]) / (double)count;
sprintf(filename, "outcvc_X.%.4d.%.4d", Nconf, count);
write_contraction(work, NULL, filename, 4, 2, 0);
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
/****************************************
* Fourier transform data, copy to work
****************************************/
for(mu=0; mu<4; mu++) {
memcpy((void*)in, (void*)(work+_GWI(mu,0,VOLUME)), 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
memcpy((void*)(work+_GWI(mu,0,VOLUME)), (void*)in, 2*VOLUME*sizeof(double));
} /* of mu =0 ,..., 3*/
/* fnorm = 1. / ((double)count); */
fprintf(stdout, "fnorm = %e\n", fnorm);
for(mu=0; mu<4; mu++) {
for(nu=0; nu<4; nu++) {
cp1 = (complex*)(work+_GWI(mu,0,VOLUME));
cp2 = (complex*)(cvc_lnuy+2*nu);
cp3 = (complex*)(work+_GWI(4+4*mu+nu,0,VOLUME));
for(x0=0; x0<T; x0++) {
q[0] = (double)(x0+Tstart) / (double)T_global;
for(x1=0; x1<LX; x1++) {
q[1] = (double)(x1) / (double)LX;
for(x2=0; x2<LY; x2++) {
q[2] = (double)(x2) / (double)LY;
for(x3=0; x3<LZ; x3++) {
q[3] = (double)(x3) / (double)LZ;
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI * ( q[mu] - q[nu] - 2.*(sx0*q[0]+sx1*q[1]+sx2*q[2]+sx3*q[3])) );
w.im = sin( M_PI * ( q[mu] - q[nu] - 2.*(sx0*q[0]+sx1*q[1]+sx2*q[2]+sx3*q[3])) );
/* fprintf(stdout, "mu=%3d, nu=%3d, t=%3d, x=%3d, y=%3d, z=%3d, phase= %21.12e + %21.12ei\n", \
mu, nu, x0, x1, x2, x3, w.re, w.im); */
_co_eq_co_ti_co(&w1, cp1, cp2);
_co_eq_co_ti_co(cp3, &w1, &w);
/* _co_ti_eq_re(cp3, fnorm); */
cp1++; cp3++;
}
}
}
}
}
}
/* save the result in momentum space */
sprintf(filename, "outcvc_P.%.4d.%.4d", Nconf, count);
write_contraction(work+_GWI(4,0,VOLUME), NULL, filename, 16, 2, 0);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id==0) fprintf(stdout, "time to cvc save results: %e seconds\n", retime-ratime);
} /* of count % Nsave == 0 */
} /* of loop on sid */
if(g_resume==1) {
/* write current disc to file */
sprintf(filename, ".outcvc_current.%.4d", Nconf);
write_contraction(disc, &count, filename, 4, 0, 0);
}
/**************************************
* free the allocated memory, finalize
**************************************/
free(g_gauge_field);
if(do_gt==1) free(gauge_trafo);
for(i=0; i<no_fields; i++) free(g_spinor_field[i]);
free(g_spinor_field);
free_geometry();
fftw_free(in);
free(disc); free(disc2);
free(work);
#ifdef MPI
fftwnd_mpi_destroy_plan(plan_p);
free(status);
MPI_Finalize();
#else
fftwnd_destroy_plan(plan_p);
#endif
return(0);
}
int main(int argc, char **argv) {
int c, i, mu, nu;
int count = 0;
int filename_set = 0;
int dims[4] = {0,0,0,0};
int l_LX_at, l_LXstart_at;
int x0, x1, x2, x3, ix;
int sid;
double *disc = (double*)NULL;
double *work = (double*)NULL;
double *disc_diag = (double*)NULL;
double phase[4];
int verbose = 0;
int do_gt = 0;
char filename[100];
double ratime, retime;
double plaq;
double spinor1[24], spinor2[24], U_[18];
complex w, w1, psi1[4], psi2[4];
FILE *ofs;
fftw_complex *in=(fftw_complex*)NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p, plan_m;
int *status;
#else
fftwnd_plan plan_p, plan_m;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "h?vgf:")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'g':
do_gt = 1;
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
set_default_input_values();
if(filename_set==0) strcpy(filename, "cvc.input");
/* read the input file */
read_input(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
if(g_kappa == 0.) {
if(g_proc_id==0) fprintf(stdout, "kappa should be > 0.n");
usage();
}
/* initialize MPI parameters */
mpi_init(argc, argv);
#ifdef MPI
if((status = (int*)calloc(g_nproc, sizeof(int))) == (int*)NULL) {
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(7);
}
#endif
/* initialize fftw */
dims[0]=T_global; dims[1]=LX; dims[2]=LY; dims[3]=LZ;
#ifdef MPI
plan_p = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_BACKWARD, FFTW_MEASURE);
plan_m = fftwnd_mpi_create_plan(g_cart_grid, 4, dims, FFTW_FORWARD, FFTW_MEASURE);
fftwnd_mpi_local_sizes(plan_p, &T, &Tstart, &l_LX_at, &l_LXstart_at, &FFTW_LOC_VOLUME);
#else
plan_p = fftwnd_create_plan(4, dims, FFTW_BACKWARD, FFTW_MEASURE | FFTW_IN_PLACE);
plan_m = fftwnd_create_plan(4, dims, FFTW_FORWARD, FFTW_MEASURE | FFTW_IN_PLACE);
T = T_global;
Tstart = 0;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
#endif
fprintf(stdout, "# [%2d] fftw parameters:\n"\
"# [%2d] T = %3d\n"\
"# [%2d] Tstart = %3d\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, T, g_cart_id, Tstart, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
#ifdef MPI
if(T==0) {
fprintf(stderr, "[%2d] local T is zero; exit\n", g_cart_id);
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
exit(2);
}
#endif
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(1);
}
geometry();
/* read the gauge field */
alloc_gauge_field(&g_gauge_field, VOLUMEPLUSRAND);
sprintf(filename, "%s.%.4d", gaugefilename_prefix, Nconf);
if(g_cart_id==0) fprintf(stdout, "reading gauge field from file %s\n", filename);
read_lime_gauge_field_doubleprec(filename);
#ifdef MPI
xchange_gauge();
#endif
/* measure the plaquette */
plaquette(&plaq);
if(g_cart_id==0) fprintf(stdout, "measured plaquette value: %25.16e\n", plaq);
/* allocate memory for the spinor fields */
no_fields = 2;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields; i++) alloc_spinor_field(&g_spinor_field[i], VOLUMEPLUSRAND);
/* allocate memory for the contractions */
disc = (double*)calloc(8*VOLUME, sizeof(double));
work = (double*)calloc(20*VOLUME, sizeof(double));
if( (disc==(double*)NULL) || (work==(double*)NULL) ) {
fprintf(stderr, "could not allocate memory for disc/work\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(3);
}
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
if(g_subtract == 1) {
/* allocate memory for disc_diag */
disc_diag = (double*)calloc(20*VOLUME, sizeof(double));
if( disc_diag == (double*)NULL ) {
fprintf(stderr, "could not allocate memory for disc_diag\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(8);
}
for(ix=0; ix<20*VOLUME; ix++) disc_diag[ix] = 0.;
}
/* prepare Fourier transformation arrays */
in = (fftw_complex*)malloc(FFTW_LOC_VOLUME*sizeof(fftw_complex));
if(in==(fftw_complex*)NULL) {
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(4);
}
if(g_resume==1) { /* read current disc from file */
sprintf(filename, ".outcvc_current.%.4d", Nconf);
c = read_contraction(disc, &count, filename, 4);
if( (g_subtract==1) && (c==0) ) {
sprintf(filename, ".outcvc_diag_current.%.4d", Nconf);
c = read_contraction(disc_diag, (int*)NULL, filename, 10);
}
#ifdef MPI
MPI_Gather(&c, 1, MPI_INT, status, 1, MPI_INT, 0, g_cart_grid);
if(g_cart_id==0) {
/* check the entries in status */
for(i=0; i<g_nproc; i++)
if(status[i]!=0) { status[0] = 1; break; }
}
MPI_Bcast(status, 1, MPI_INT, 0, g_cart_grid);
if(status[0]==1) {
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
count = 0;
}
#else
if(c != 0) {
fprintf(stdout, "could not read current disc; start new\n");
for(ix=0; ix<8*VOLUME; ix++) disc[ix] = 0.;
if(g_subtract==1) for(ix=0; ix<20*VOLUME; ix++) disc_diag[ix] = 0.;
count = 0;
}
#endif
if(g_cart_id==0) fprintf(stdout, "starting with count = %d\n", count);
} /* of g_resume == 1 */
/* start loop on source id.s */
for(sid=g_sourceid; sid<=g_sourceid2; sid++) {
/* read the new propagator */
/* sprintf(filename, "%s.%.4d.%.2d", filename_prefix, Nconf, sid); */
sprintf(filename, "source.%.4d.%.2d.inverted", Nconf, sid);
if(format==0) {
if(read_lime_spinor(g_spinor_field[1], filename, 0) != 0) break;
}
else if(format==1) {
if(read_cmi(g_spinor_field[1], filename) != 0) break;
}
count++;
xchange_field(g_spinor_field[1]);
/* calculate the source: apply Q_phi_tbc */
Q_phi_tbc(g_spinor_field[0], g_spinor_field[1]);
xchange_field(g_spinor_field[0]);
/*
sprintf(filename, "%s.source.%.2d", filename, g_cart_id);
ofs = fopen(filename, "w");
printf_spinor_field(g_spinor_field[0], ofs);
fclose(ofs);
*/
/* add new contractions to (existing) disc */
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
for(ix=0; ix<VOLUME; ix++) { /* loop on lattice sites */
for(mu=0; mu<4; mu++) { /* loop on Lorentz index of the current */
_cm_eq_cm_ti_co(U_, &g_gauge_field[_GGI(ix, mu)], &co_phase_up[mu]);
/* first contribution */
_fv_eq_cm_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(g_iup[ix][mu])]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_mi_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(ix)], spinor2);
disc[_GJI(ix, mu) ] -= 0.25 * w.re;
disc[_GJI(ix, mu)+1] -= 0.25 * w.im;
if(g_subtract==1) {
work[_GWI(mu,ix,VOLUME) ] = -0.25 * w.re;
work[_GWI(mu,ix,VOLUME)+1] = -0.25 * w.im;
}
/* second contribution */
_fv_eq_cm_dag_ti_fv(spinor1, U_, &g_spinor_field[1][_GSI(ix)]);
_fv_eq_gamma_ti_fv(spinor2, mu, spinor1);
_fv_pl_eq_fv(spinor2, spinor1);
_co_eq_fv_dag_ti_fv(&w, &g_spinor_field[0][_GSI(g_iup[ix][mu])], spinor2);
disc[_GJI(ix, mu) ] -= 0.25 * w.re;
disc[_GJI(ix, mu)+1] -= 0.25 * w.im;
if(g_subtract==1) {
work[_GWI(mu,ix,VOLUME) ] -= 0.25 * w.re;
work[_GWI(mu,ix,VOLUME)+1] -= 0.25 * w.im;
}
}
}
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "[%2d] contractions in %e seconds\n", g_cart_id, retime-ratime);
if(g_subtract==1) {
/* add current contribution to disc_diag */
for(mu=0; mu<4; mu++) {
for(i=0; i<4; i++) phase[i] = (double)(i==mu);
memcpy((void*)in, (void*)&work[_GWI(mu,0,VOLUME)], 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
for(x0=0; x0<T; x0++) {
for(x1=0; x1<LX; x1++) {
for(x2=0; x2<LY; x2++) {
for(x3=0; x3<LZ; x3++) {
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
w.im = -sin( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
_co_eq_co_ti_co(&w1, &in[ix], &w);
work[_GWI(4+mu,ix,VOLUME) ] = w1.re;
work[_GWI(4+mu,ix,VOLUME)+1] = w1.im;
}
}
}
}
memcpy((void*)in, (void*)&work[_GWI(mu,0,VOLUME)], 2*VOLUME*sizeof(double));
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
for(x0=0; x0<T; x0++) {
for(x1=0; x1<LX; x1++) {
for(x2=0; x2<LY; x2++) {
for(x3=0; x3<LZ; x3++) {
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
w.im = sin( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
_co_eq_co_ti_co(&w1, &in[ix], &w);
work[_GWI(mu,ix,VOLUME) ] = w1.re;
work[_GWI(mu,ix,VOLUME)+1] = w1.im;
}
}
}
}
} /* of mu */
for(ix=0; ix<VOLUME; ix++) {
i=-1;
for(mu=0; mu<4; mu++) {
for(nu=mu; nu<4; nu++) {
i++;
_co_eq_co_ti_co(&w, (complex*)&work[_GWI(mu,ix,VOLUME)], (complex*)&work[_GWI(4+nu,ix,VOLUME)]);
disc_diag[_GWI(ix,i,10) ] += w.re;
disc_diag[_GWI(ix,i,10)+1] += w.im;
}
}
}
} /* of g_subtract == 1 */
/* save results for count = multiple of Nsave */
if(count%Nsave == 0) {
#ifdef MPI
ratime = MPI_Wtime();
#else
ratime = (double)clock() / CLOCKS_PER_SEC;
#endif
if(g_cart_id == 0) fprintf(stdout, "save results for count = %d\n", count);
/* save the result in position space */
sprintf(filename, "outcvc_X.%.4d.%.4d", Nconf, count);
write_contraction(disc, NULL, filename, 4, 1, 0);
/* Fourier transform data, copy to work */
for(mu=0; mu<4; mu++) {
for(i=0; i<4; i++) phase[i] = (double)(i==mu);
for(ix=0; ix<VOLUME; ix++) {
in[ix].re = disc[_GJI(ix,mu) ];
in[ix].im = disc[_GJI(ix,mu)+1];
}
#ifdef MPI
fftwnd_mpi(plan_m, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_m, in, NULL);
#endif
for(x0=0; x0<T; x0++) {
for(x1=0; x1<LX; x1++) {
for(x2=0; x2<LY; x2++) {
for(x3=0; x3<LZ; x3++) {
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
w.im = -sin( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
_co_eq_co_ti_co(&w1, &in[ix], &w);
work[_GWI(ix,4+mu,8) ] = w1.re / (double)count;
work[_GWI(ix,4+mu,8)+1] = w1.im / (double)count;
}
}
}
}
for(ix=0; ix<VOLUME; ix++) {
in[ix].re = disc[_GJI(ix, mu) ];
in[ix].im = disc[_GJI(ix, mu)+1];
}
#ifdef MPI
fftwnd_mpi(plan_p, 1, in, NULL, FFTW_NORMAL_ORDER);
#else
fftwnd_one(plan_p, in, NULL);
#endif
for(x0=0; x0<T; x0++) {
for(x1=0; x1<LX; x1++) {
for(x2=0; x2<LY; x2++) {
for(x3=0; x3<LZ; x3++) {
ix = g_ipt[x0][x1][x2][x3];
w.re = cos( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
w.im = sin( M_PI *
(phase[0]*(double)(Tstart+x0)/(double)T_global + phase[1]*(double)x1/(double)LX +
phase[2]*(double)x2/(double)LY + phase[3]*(double)x3/(double)LZ) );
_co_eq_co_ti_co(&w1, &in[ix], &w);
work[_GWI(ix,mu,8) ] = w1.re / (double)count;
work[_GWI(ix,mu,8)+1] = w1.im / (double)count;
}
}
}
}
} /* of mu =0 ,..., 3*/
/* save the result in momentum space */
sprintf(filename, "outcvc_P.%.4d.%.4d", Nconf, count);
write_contraction(work, NULL, filename, 8, 1, 0);
/* calculate the correlations 00, 01, 02, 03, 11, 12, ..., 23, 33 */
for(ix=VOLUME-1; ix>=0; ix--) {
/* copy current data to auxilliary vector */
memcpy((void*)psi1, (void*)&work[_GWI(ix,0,8)], 8*sizeof(double));
memcpy((void*)psi2, (void*)&work[_GWI(ix,4,8)], 8*sizeof(double));
i = -1;
for(mu=0; mu<4; mu++) {
for(nu=mu; nu<4; nu++) {
i++;
_co_eq_co_ti_co(&w,&psi1[mu],&psi2[nu]);
if(g_subtract !=1 ) {
work[_GWI(ix,i,10) ] = w.re / (double)(T_global*LX*LY*LZ);
work[_GWI(ix,i,10)+1] = w.im / (double)(T_global*LX*LY*LZ);
}
else {
work[_GWI(ix,i,10) ] =
( w.re - disc_diag[_GWI(ix,i,10) ]/(double)(count*count) ) /
(double)(T_global*LX*LY*LZ);
work[_GWI(ix,i,10)+1] =
( w.im - disc_diag[_GWI(ix,i,10)+1]/(double)(count*count) ) /
(double)(T_global*LX*LY*LZ);
}
}
}
}
/* save current results to file */
sprintf(filename, "outcvc_final.%.4d.%.4d", Nconf, count);
write_contraction(work, (int*)NULL, filename, 10, 1, 0);
#ifdef MPI
retime = MPI_Wtime();
#else
retime = (double)clock() / CLOCKS_PER_SEC;
#endif
fprintf(stdout, "[%2d] time to save results: %e seconds\n", g_cart_id, retime-ratime);
} /* of count % Nsave == 0 */
} /* of loop on sid */
/* write current disc to file */
sprintf(filename, ".outcvc_current.%.4d", Nconf);
write_contraction(disc, &count, filename, 4, 0, 0);
if(g_subtract == 1) {
/* write current disc_diag to file */
sprintf(filename, ".outcvc_diag_current.%.4d", Nconf);
write_contraction(disc_diag, (int*)NULL, filename, 10, 0, 0);
}
/* free the allocated memory, finalize */
free(g_gauge_field); g_gauge_field=(double*)NULL;
for(i=0; i<no_fields; i++) {
free(g_spinor_field[i]);
g_spinor_field[i] = (double*)NULL;
}
free(g_spinor_field); g_spinor_field=(double**)NULL;
free_geometry();
fftw_free(in);
free(disc);
free(work);
if(g_subtract==1) free(disc_diag);
#ifdef MPI
fftwnd_mpi_destroy_plan(plan_p);
fftwnd_mpi_destroy_plan(plan_m);
free(status);
MPI_Finalize();
#else
fftwnd_destroy_plan(plan_p);
fftwnd_destroy_plan(plan_m);
#endif
return(0);
}
