int main()
{
int i;
vsip_randstate *state;
vsip_cmview_d *xy;
vsip_cvview_d *xy_row;
vsip_length stride;
vsip_cvview_d *sum;
vsip_fftm_d *ccfftmip;
vsip_length seed =0, num_procs=1, id=1;
vsip_init((void *)0);
/* Initialize Random Number Generator */
state = vsip_randcreate(seed, num_procs, id, VSIP_PRNG);
/* Row major, 64 (ROWS) of 16 point data vectors */
xy = vsip_cmcreate_d(ROWS, 16, VSIP_ROW, VSIP_MEM_NONE);
/* Bind xy_row view initially to row 0 of xy */
xy_row = vsip_cmrowview_d(xy, 0);
/* Stride between column elements of xy */
stride = vsip_cmgetcolstride_d(xy);
sum = vsip_cvcreate_d(N, VSIP_MEM_NONE);
/* Create an in-place Cmplx->Cmplx Multiple N-pt FFT */
ccfftmip = vsip_ccfftmip_create_d(ROWS, N, 1.0, VSIP_FFT_FWD,
VSIP_ROW, 1, VSIP_ALG_TIME);
/* Initialize xy by rows with complex Gaussian noise N(0,1) */
for (i=0; i<ROWS; i++)
{
vsip_cvputoffset_d(xy_row, i*stride); /* view of row i of xy */
vsip_cvrand_d(state,xy_row); /* Initialize row i of xy */
}
/* Compute an in-place Cmplx->Cmplx Multiple N-pt FFT using the
ccfftmip object*/
vsip_ccfftmip_d(ccfftmip, xy);
/* Coherently sum the rows together (in the Freq domain) */
vsip_cvputoffset_d(xy_row, 0);
vsip_cvcopy_d_d(xy_row, sum); /* sum = row 0 of xy */
for (i=1; i<ROWS; i++)
{
vsip_cvputoffset_d(xy_row, i*stride); /* view of row i of xy */
vsip_cvadd_d(xy_row, sum, sum); /* sum += row i of xy */
}
/* Print it */
printf("\nComplex Output Vector (Real, Imag)\n");
for(i=0; i<N; i++)
printf("%d:\t" SCMPLX "\n", i, ACMPLX(vsip_cvget_d(sum,i)));
printf("\n");
/* Destroy all the objects */
vsip_fftm_destroy_d(ccfftmip);
vsip_cvdestroy(xy_row);
vsip_cvdestroy(sum);
vsip_cmalldestroy_d(xy);
vsip_randdestroy(state);
vsip_finalize((void *)0);
return(0);
}
int main(){vsip_init((void*)0);
{
vsip_cmview_d *Adummy = vsip_cmcreate_d(5*NN,5*NN,VSIP_COL,0);
vsip_cmview_d *A = vsip_cmsubview_d(Adummy,3,2,NN,NN);
/* vsip_cmview_d *A= vsip_cmcreate_d(NN,NN,VSIP_COL,0); */
vsip_cvview_d *x0 = vsip_cvcreate_d(NN,0);
vsip_vview_d *x0_r = vsip_vrealview_d(x0);
vsip_vview_d *x0_i = vsip_vimagview_d(x0);
vsip_cmview_d *X = vsip_cmcreate_d(NN,3,VSIP_ROW,0);
vsip_cmview_d *XT = vsip_cmcreate_d(NN,3,VSIP_COL,0);
vsip_cmputrowstride_d(A,2*vsip_cmgetrowstride_d(A));
vsip_cmputcolstride_d(A,3*vsip_cmgetcolstride_d(A));
/* matrix data */
vsip_cmput_d(A,0,0,vsip_cmplx_d(0.5,0.1)); vsip_cmput_d(A,0,1,vsip_cmplx_d(7,0.1));
vsip_cmput_d(A,0,2,vsip_cmplx_d(10,0.1)); vsip_cmput_d(A,0,3,vsip_cmplx_d(12,0.1));
vsip_cmput_d(A,0,4,vsip_cmplx_d(-3,0.1)); vsip_cmput_d(A,0,5,vsip_cmplx_d(0,0.1)); vsip_cmput_d(A,0,6,vsip_cmplx_d(.05,0.1));
vsip_cmput_d(A,1,0,vsip_cmplx_d(2,0.1)); vsip_cmput_d(A,1,1,vsip_cmplx_d(13,0.1));
vsip_cmput_d(A,1,2,vsip_cmplx_d(18,0.1)); vsip_cmput_d(A,1,3,vsip_cmplx_d(6,0.1));
vsip_cmput_d(A,1,4,vsip_cmplx_d(0,0.1)); vsip_cmput_d(A,1,5,vsip_cmplx_d(130,0.1)); vsip_cmput_d(A,1,6,vsip_cmplx_d(8,0.1));
vsip_cmput_d(A,2,0,vsip_cmplx_d(3,0.1)); vsip_cmput_d(A,2,1,vsip_cmplx_d(-9,0.1));
vsip_cmput_d(A,2,2,vsip_cmplx_d(2,0.1)); vsip_cmput_d(A,2,3,vsip_cmplx_d(3,0.2));
vsip_cmput_d(A,2,4,vsip_cmplx_d(2,0.2)); vsip_cmput_d(A,2,5,vsip_cmplx_d(-9,0.2)); vsip_cmput_d(A,2,6,vsip_cmplx_d(6,0.2));
vsip_cmput_d(A,3,0,vsip_cmplx_d(4,0.2)); vsip_cmput_d(A,3,1,vsip_cmplx_d(2,0.2));
vsip_cmput_d(A,3,2,vsip_cmplx_d(2,0.2)); vsip_cmput_d(A,3,3,vsip_cmplx_d(4,0.2));
vsip_cmput_d(A,3,4,vsip_cmplx_d(1,0.2)); vsip_cmput_d(A,3,5,vsip_cmplx_d(2,0.2)); vsip_cmput_d(A,3,6,vsip_cmplx_d(3,0.2));
vsip_cmput_d(A,4,0,vsip_cmplx_d(.2,0.3)); vsip_cmput_d(A,4,1,vsip_cmplx_d(2,0.3));
vsip_cmput_d(A,4,2,vsip_cmplx_d(9,0.3)); vsip_cmput_d(A,4,3,vsip_cmplx_d(4,0.3));
vsip_cmput_d(A,4,4,vsip_cmplx_d(1,0.3)); vsip_cmput_d(A,4,5,vsip_cmplx_d(2,0.3));
vsip_cmput_d(A,4,6,vsip_cmplx_d(3,0.3));
vsip_cmput_d(A,5,0,vsip_cmplx_d(.1,0.4)); vsip_cmput_d(A,5,1,vsip_cmplx_d(2,0.4));
vsip_cmput_d(A,5,2,vsip_cmplx_d(.3,0.4)); vsip_cmput_d(A,5,3,vsip_cmplx_d(4,0.4));
vsip_cmput_d(A,5,4,vsip_cmplx_d(1,0.4)); vsip_cmput_d(A,5,5,vsip_cmplx_d(2,0.4)); vsip_cmput_d(A,5,6,vsip_cmplx_d(3,0.4));
vsip_cmput_d(A,6,0,vsip_cmplx_d(.01,0.4)); vsip_cmput_d(A,6,1,vsip_cmplx_d(.2,0.4));
vsip_cmput_d(A,6,2,vsip_cmplx_d(3,0.4)); vsip_cmput_d(A,6,3,vsip_cmplx_d(4,0.4));
vsip_cmput_d(A,6,4,vsip_cmplx_d(1,0.4)); vsip_cmput_d(A,6,5,vsip_cmplx_d(2,0.4)); vsip_cmput_d(A,6,6,vsip_cmplx_d(3,0.4));
{ /* were solving for NTRANS Ax = B */
/* use a known X, calculate B using Ax */
int k;
vsip_cvview_d *x;
vsip_cmview_d *AT = vsip_cmcreate_d(NN,NN,VSIP_ROW,VSIP_MEM_NONE);
vsip_length L = vsip_cmgetrowlength_d(X);
vsip_cmherm_d(A,AT);
printf("A = "); VU_cmprintm_d("7.4",A);
printf("AT = "); VU_cmprintm_d("7.4",AT);
vsip_vramp_d(1,1,x0_r);
vsip_vramp_d(1,-1,x0_i);
for(k=0; k<L; k++){
x = vsip_cmcolview_d(X,k);
vsip_cmvprod_d(A,x0,x);
vsip_rscvmul_d(2.0,x0,x0);
vsip_cvdestroy_d(x);
}
vsip_vramp_d(1,1,x0_r);
vsip_vramp_d(1,-1,x0_i);
for(k=0; k<L; k++){
x = vsip_cmcolview_d(XT,k);
vsip_cmvprod_d(AT,x0,x);
VU_cvprintm_d("7.4",x0);
vsip_rscvmul_d(2.0,x0,x0);
vsip_cvdestroy_d(x);
}
vsip_cmalldestroy_d(AT);
printf("B = "); VU_cmprintm_d("7.4",X);
printf("BT = "); VU_cmprintm_d("7.4",XT);
{
/* then solve to see if we get X back */
vsip_clu_d* luAop = vsip_clud_create_d(NN);
if(luAop == NULL) exit(1);
vsip_clud_d(luAop,A);
{ vsip_clu_attr_d attr;
vsip_clud_getattr_d(luAop,&attr);
printf("lud size %lu\n",attr.n);
}
vsip_clusol_d(luAop,VSIP_MAT_NTRANS,X);
vsip_clusol_d(luAop,VSIP_MAT_HERM,XT);
vsip_clud_destroy_d(luAop);
}
}
printf("A\\X = "); VU_cmprintm_d("9.6",X);
printf("A'\\X = "); VU_cmprintm_d("9.6",XT);
{
vsip_vdestroy_d(x0_r);vsip_vdestroy_d(x0_i);
vsip_cvalldestroy_d(x0);
vsip_cmalldestroy_d(X);
vsip_cmalldestroy_d(A);
}
}vsip_finalize((void*)0);return 1;
}
