void gfc3d_init_workspace(GlobalFrictionContactProblem* problem)
{
assert(problem);
assert(problem->M);
if (!problem->workspace)
{
problem->workspace = (GFC3D_workspace*) malloc(sizeof(GFC3D_workspace));
problem->workspace->factorized_M = NULL;
problem->workspace->globalVelocity = NULL;
}
if (!problem->workspace->factorized_M)
{
problem->workspace->factorized_M = createNumericsMatrix(problem->M->storageType,
problem->M->size0,
problem->M->size1);
NM_copy(problem->M, problem->workspace->factorized_M);
}
if (!problem->workspace->globalVelocity)
{
problem->workspace->globalVelocity = (double*)malloc(problem->M->size1 * sizeof(double));
}
}
void NM_copy_to_sparse(const NumericsMatrix* const A, NumericsMatrix* B)
{
assert(A);
assert(B);
B->size0 = A->size0;
B->size1 = A->size1;
assert(B->storageType == NM_SPARSE);
if (!B->matrix2)
{
B->matrix2 = newNumericsSparseMatrix();
}
switch (A->storageType)
{
case NM_DENSE:
{
B->matrix2->triplet = cs_spalloc(0,0,1,1,1);
NM_dense_to_sparse(A, B);
break;
}
case NM_SPARSE_BLOCK:
{
// XXX this is suboptimal since the matrix A might have already been converted
// to csc or triplet --xhub
B->matrix1 = A->matrix1;
B->storageType = NM_SPARSE_BLOCK;
NM_triplet(B);
B->matrix1 = NULL;
B->storageType = NM_SPARSE;
break;
}
case NM_SPARSE:
{
NM_copy(A, B);
break;
}
default:
{
printf("NM_copy_to_sparse :: Unsupported storage type %d, exiting!\n", A->storageType);
exit(EXIT_FAILURE);
}
}
}
int gfc3d_LmgcDriver(double *reaction,
double *velocity,
double *globalVelocity,
double *q,
double *b,
double *mu,
double *Mdata,
unsigned int nzM,
unsigned int *rowM,
unsigned int *colM,
double* Hdata,
unsigned int nzH,
unsigned int *rowH,
unsigned int *colH,
unsigned int n,
unsigned int nc,
int solver_id,
int isize,
int *iparam,
int dsize,
double *dparam,
int verbose_in,
int outputFile,
int freq_output)
{
verbose = verbose_in;
/* NumericsMatrix M, H; */
NumericsMatrix * M =NM_new();
M->storageType = 2; /* sparse */
M->size0 = n;
M->size1 = n;
NumericsMatrix * H =NM_new();
H->storageType = 2;
H->size0 = M->size0;
H->size1 = 3 * nc;
NumericsSparseMatrix * SM =NSM_new();
M->matrix2 = SM;
SM->triplet = (CSparseMatrix * )malloc(sizeof(CSparseMatrix));
CSparseMatrix * _M = SM->triplet;
SM->origin = NSM_TRIPLET;
CS_INT * _colM = alloc_memory_csi(nzM, colM);
CS_INT * _rowM = alloc_memory_csi(nzM, rowM);
_M->nzmax = nzM;
_M->nz = nzM;
_M->m = M->size0;
_M->n = M->size1;
_M->p = (CS_INT *) _colM;
_M->i = (CS_INT *) _rowM;
double * _Mdata = alloc_memory_double(nzM, Mdata);
_M->x = _Mdata;
DEBUG_PRINTF("_M->n=%lli\t",_M->n);
DEBUG_PRINTF("_M->m=%lli\n",_M->m);
NumericsSparseMatrix * SH =NSM_new();
H->matrix2 = SH;
SH->triplet = (CSparseMatrix * )malloc(sizeof(CSparseMatrix));
CSparseMatrix * _H = SH->triplet;
SH->origin = NSM_TRIPLET;
CS_INT * _colH = alloc_memory_csi(nzH, colH);
CS_INT * _rowH = alloc_memory_csi(nzH, rowH);
_H->nzmax = nzH;
_H->nz = nzH;
_H->m = H->size0;
_H->n = H->size1;
_H->p = _colH;
_H->i = _rowH;
double * _Hdata = alloc_memory_double(nzH, Hdata);
_H->x = _Hdata;
for (int i=0; i< _M->nz; ++i)
{
_M->p[i] --;
_M->i[i] --;
/* DEBUG_PRINTF("%d -> %d,%d\n", i, _M->p[i], _M->i[i]); */
}
for (int i=0; i< _H->nz; ++i)
{
_H->p[i] --;
_H->i[i] --;
/* DEBUG_PRINTF("%d -> %d,%d\n", i, _H->p[i], _H->i[i]); */
}
#ifdef USE_NM_DENSE
assert(M);
assert(H);
NumericsMatrix *MMtmp = NM_new();
NumericsMatrix *HHtmp = NM_new();
NM_copy(M,MMtmp);
NM_copy(H,HHtmp);
NM_clearSparse(M);
NM_clearSparse(H);
M = NM_create(NM_DENSE, H->size0, H->size0);
H = NM_create(NM_DENSE, H->size0, H->size1);
NM_to_dense(MMtmp,M);
NM_to_dense(HHtmp,H);
/* NM_display(M); */
/* NM_display(H); */
#endif
GlobalFrictionContactProblem * problem =(GlobalFrictionContactProblem*)malloc(sizeof(GlobalFrictionContactProblem));
problem->dimension = 3;
problem->numberOfContacts = nc;
problem->env = NULL;
problem->M = M;
problem->H = H;
problem->q = q;
problem->b = b;
problem->mu = mu;
SolverOptions numerics_solver_options;
int infi = 0;
infi = gfc3d_setDefaultSolverOptions(&numerics_solver_options, solver_id);
assert(!infi);
int iSize_min = isize < numerics_solver_options.iSize ? isize : numerics_solver_options.iSize;
DEBUG_PRINTF("iSize_min = %i", iSize_min);
for (int i = 0; i < iSize_min; ++i)
if (abs(iparam[i])>0)
numerics_solver_options.iparam[i] = iparam[i];
int dSize_min = dsize < numerics_solver_options.dSize ? dsize : numerics_solver_options.dSize;
for (int i=0; i < dSize_min; ++i)
if (fabs(dparam[i]) > 0)
numerics_solver_options.dparam[i] = dparam[i];
/* solver_options_print(&numerics_solver_options); */
/* FILE * file = fopen("toto.dat", "w"); */
/* globalFrictionContact_printInFile(problem, file); */
/* fclose(file); */
int rinfo = gfc3d_driver(problem,
reaction,
velocity,
globalVelocity,
&numerics_solver_options);
iparam[SICONOS_IPARAM_ITER_DONE] = numerics_solver_options.iparam[SICONOS_IPARAM_ITER_DONE];
dparam[SICONOS_DPARAM_TOL] = numerics_solver_options.dparam[SICONOS_DPARAM_TOL];
/* FILE * file1 = fopen("tutu.dat", "w"); */
/* globalFrictionContact_printInFile(problem, file1); */
/* fclose(file1); */
if(outputFile == 1)
{
/* dump in C format */
}
else if (outputFile == 2)
{
/* dump in Numerics .dat format */
}
else if (outputFile == 3)
{
#ifdef WITH_FCLIB
gfccounter++;
struct stat st = {};
if (stat("./fclib-hdf5/", &st) == -1) {
mkdir("./fclib-hdf5/", 0700);
}
printf("################################## gfcccounter = %i\n", gfccounter);
if (gfccounter % freq_output == 0)
{
char fname[256];
snprintf(fname, sizeof(fname), "./fclib-hdf5/LMGC_GFC3D-i%.5d-%i-%.5d.hdf5", numerics_solver_options.iparam[SICONOS_IPARAM_ITER_DONE], nc, gfccounter);
printf("Dump ./fclib-hdf5/LMGC_GFC3D-i%.5d-%i-%.5d.hdf5.\n", numerics_solver_options.iparam[SICONOS_IPARAM_ITER_DONE], nc, gfccounter);
/* printf("ndof = %i.\n", ndof); */
FILE * foutput = fopen(fname, "w");
int n = 100;
char * title = (char *)malloc(n * sizeof(char *));
strncpy(title, "LMGC dump in hdf5", n);
char * description = (char *)malloc(n * sizeof(char *));
snprintf(description, n, "Rewriting in hdf5 through siconos of %s in FCLIB format", fname);
char * mathInfo = (char *)malloc(n * sizeof(char *));
strncpy(mathInfo, "unknown", n);
globalFrictionContact_fclib_write(problem,
title,
description,
mathInfo,
fname);
fclose(foutput);
}
#else
printf("Fclib is not available ...\n");
#endif
}
NM_free(M);
NM_free(H);
free(M);
free(H);
free(problem);
/* free(_colM); */
/* free(_colH); */
/* free(_rowM); */
/* free(_rowH); */
return rinfo;
}
void fc3d_nonsmooth_Newton_solvers_solve(fc3d_nonsmooth_Newton_solvers* equation,
double* reaction,
double* velocity,
int* info,
SolverOptions* options)
{
assert(equation);
FrictionContactProblem* problem = equation->problem;
assert(problem);
assert(reaction);
assert(velocity);
assert(info);
assert(options);
assert(problem->dimension == 3);
assert(options->iparam);
assert(options->dparam);
assert(problem->q);
assert(problem->mu);
assert(problem->M);
assert(problem->M->matrix0 || problem->M->matrix1 || problem->M->matrix2);
assert(!options->iparam[4]); // only host
unsigned int problemSize = 3 * problem->numberOfContacts;
unsigned int iter = 0;
unsigned int itermax = options->iparam[0];
unsigned int erritermax = options->iparam[7];
int nzmax;
if (problem->M->storageType == NM_DENSE)
{
nzmax = problemSize * problemSize;
}
else
{
nzmax = options->iparam[3];
}
assert(itermax > 0);
assert(nzmax > 0);
double tolerance = options->dparam[0];
assert(tolerance > 0);
if (verbose > 0)
printf("------------------------ FC3D - _nonsmooth_Newton_solversSolve - Start with tolerance = %g\n", tolerance);
unsigned int _3problemSize = 3 * problemSize;
double normq = cblas_dnrm2(problemSize , problem->q , 1);
void *buffer;
if (!options->dWork)
{
buffer = malloc((11 * problemSize) * sizeof(double)); // F(1),
// tmp1(1),
// tmp2(1),
// tmp3(1),
// A(3),
// B(3), rho
}
else
{
buffer = options->dWork;
}
double *F = (double *) buffer;
double *tmp1 = (double *) F + problemSize;
double *tmp2 = (double *) tmp1 + problemSize;
double *tmp3 = (double *) tmp2 + problemSize;
double *Ax = tmp3 + problemSize;
double *Bx = Ax + _3problemSize;
double *rho = Bx + _3problemSize;
NumericsMatrix *AWpB, *AWpB_backup;
if (!options->dWork)
{
AWpB = createNumericsMatrix(problem->M->storageType,
problem->M->size0, problem->M->size1);
AWpB_backup = createNumericsMatrix(problem->M->storageType,
problem->M->size0, problem->M->size1);
}
else
{
AWpB = (NumericsMatrix*) (rho + problemSize);
AWpB_backup = (NumericsMatrix*) (AWpB + sizeof(NumericsMatrix*));
}
/* just for allocations */
NM_copy(problem->M, AWpB);
if (problem->M->storageType != NM_DENSE)
{
switch(options->iparam[13])
{
case 0:
{
NM_linearSolverParams(AWpB)->solver = NS_CS_LUSOL;
break;
}
case 1:
{
NM_linearSolverParams(AWpB)->solver = NS_MUMPS;
#ifdef HAVE_MPI
assert (options->solverData);
if ((MPI_Comm) options->solverData == MPI_COMM_NULL)
{
options->solverData = NM_MPI_com(MPI_COMM_NULL);
}
else
{
NM_MPI_com((MPI_Comm) options->solverData);
}
#endif
break;
}
default:
{
numerics_error("fc3d_nonsmooth_Newton_solvers_solve", "Unknown linear solver.\n");
}
}
}
// compute rho here
for (unsigned int i = 0; i < problemSize; ++i) rho[i] = options->dparam[3];
// velocity <- M*reaction + qfree
cblas_dcopy(problemSize, problem->q, 1, velocity, 1);
NM_gemv(1., problem->M, reaction, 1., velocity);
double linear_solver_residual=0.0;
while (iter++ < itermax)
{
equation->function(equation->data,
problemSize,
reaction, velocity, equation->problem->mu,
rho,
F, Ax, Bx);
// AW + B
computeAWpB(Ax, problem->M, Bx, AWpB);
cblas_dcopy_msan(problemSize, F, 1, tmp1, 1);
cblas_dscal(problemSize, -1., tmp1, 1);
/* Solve: AWpB X = -F */
NM_copy(AWpB, AWpB_backup);
int lsi = NM_gesv(AWpB, tmp1);
/* NM_copy needed here */
NM_copy(AWpB_backup, AWpB);
if (lsi)
{
if (verbose > 0)
{
numerics_warning("fc3d_nonsmooth_Newton_solvers_solve",
"warning! linear solver exit with code = %d\n", lsi);
}
}
if (verbose > 0)
{
cblas_dcopy_msan(problemSize, F, 1, tmp3, 1);
NM_gemv(1., AWpB, tmp1, 1., tmp3);
linear_solver_residual = cblas_dnrm2(problemSize, tmp3, 1);
/* fprintf(stderr, "fc3d esolve: linear equation residual = %g\n", */
/* cblas_dnrm2(problemSize, tmp3, 1)); */
/* for the component wise scaled residual: cf mumps &
* http://www.netlib.org/lapack/lug/node81.html */
}
// line search
double alpha = 1;
int info_ls = 0;
cblas_dcopy_msan(problemSize, tmp1, 1, tmp3, 1);
switch (options->iparam[11])
{
case -1:
/* without line search */
info_ls = 1;
break;
case 0:
/* Goldstein Price */
info_ls = globalLineSearchGP(equation, reaction, velocity, problem->mu, rho, F, Ax, Bx, problem->M, problem->q, AWpB, tmp1, tmp2, &alpha, options->iparam[12]);
break;
case 1:
/* FBLSA */
info_ls = frictionContactFBLSA(equation, reaction, velocity, problem->mu, rho, F, Ax, Bx,
problem->M, problem->q, AWpB, tmp1, tmp2, &alpha, options->iparam[12]);
break;
default:
{
numerics_error("fc3d_nonsmooth_Newton_solvers_solve",
"Unknown line search option.\n");
}
}
if (!info_ls)
// tmp2 should contains the reaction iterate of the line search
// for GP this should be the same as cblas_daxpy(problemSize, alpha, tmp1, 1, reaction, 1);
cblas_dcopy(problemSize, tmp2, 1, reaction, 1);
else
cblas_daxpy(problemSize, 1., tmp3, 1., reaction, 1);
// velocity <- M*reaction + qfree
cblas_dcopy(problemSize, problem->q, 1, velocity, 1);
NM_gemv(1., problem->M, reaction, 1., velocity);
options->dparam[1] = INFINITY;
if (!(iter % erritermax))
{
fc3d_compute_error(problem, reaction, velocity,
// fc3d_FischerBurmeister_compute_error(problem, reaction, velocity,
tolerance, options, normq, &(options->dparam[1]));
DEBUG_EXPR_WE(equation->function(equation->data, problemSize,
reaction, velocity, equation->problem->mu, rho,
F, NULL, NULL));
DEBUG_EXPR_WE(assert((cblas_dnrm2(problemSize, F, 1)
/ (1 + cblas_dnrm2(problemSize, problem->q, 1)))
<= (10 * options->dparam[1] + 1e-15)));
}
if (verbose > 0)
{
equation->function(equation->data, problemSize,
reaction, velocity, equation->problem->mu, rho,
F, NULL, NULL);
printf(" ---- fc3d_nonsmooth_Newton_solvers_solve: iteration %d : , linear solver residual =%g, residual=%g, ||F||=%g\n", iter, linear_solver_residual, options->dparam[1],cblas_dnrm2(problemSize, F, 1));
}
if (options->callback)
{
options->callback->collectStatsIteration(options->callback->env, problemSize, reaction, velocity,
options->dparam[1], NULL);
}
if (isnan(options->dparam[1]))
{
if (verbose > 0)
{
printf(" fc3d_nonsmooth_Newton_solvers_solve: iteration %d : computed residual is not a number, stop.\n", iter);
}
info[0] = 2;
break;
}
if (options->dparam[1] < tolerance)
{
info[0] = 0;
break;
}
}
if (verbose > 0)
{
if (!info[0])
printf("------------------------ FC3D - NSN - convergence after %d iterations, residual : %g < %g \n", iter, options->dparam[1],tolerance);
else
{
printf("------------------------ FC3D - NSN - no convergence after %d iterations, residual : %g < %g \n", iter, options->dparam[1], tolerance);
}
}
options->iparam[SICONOS_IPARAM_ITER_DONE] = iter;
if (!options->dWork)
{
assert(buffer);
free(buffer);
options->dWork = NULL;
}
else
{
assert(buffer == options->dWork);
}
if (!options->dWork)
{
freeNumericsMatrix(AWpB);
freeNumericsMatrix(AWpB_backup);
free(AWpB);
free(AWpB_backup);
}
if (verbose > 0)
printf("------------------------ FC3D - NSN - End\n");
}
/* Alart & Curnier solver for sparse global problem */
void gfc3d_nonsmooth_Newton_AlartCurnier(
GlobalFrictionContactProblem* problem,
double *reaction,
double *velocity,
double *globalVelocity,
int *info,
SolverOptions* options)
{
assert(problem);
assert(reaction);
assert(velocity);
assert(info);
assert(options);
assert(problem->dimension == 3);
assert(options->iparam);
assert(options->dparam);
assert(problem->q);
assert(problem->mu);
assert(problem->M);
assert(problem->H);
assert(!problem->M->matrix0);
// assert(problem->M->matrix1);
assert(!options->iparam[4]); // only host
/* M is square */
assert(problem->M->size0 == problem->M->size1);
assert(problem->M->size0 == problem->H->size0);
unsigned int iter = 0;
unsigned int itermax = options->iparam[0];
unsigned int erritermax = options->iparam[7];
if (erritermax == 0)
{
/* output a warning here */
erritermax = 1;
}
assert(itermax > 0);
assert(options->iparam[3] > 0);
double tolerance = options->dparam[0];
assert(tolerance > 0);
if (verbose > 0)
printf("------------------------ GFC3D - _nonsmooth_Newton_AlartCurnier - Start with tolerance = %g\n", tolerance);
/* sparse triplet storage */
NM_triplet(problem->M);
NM_triplet(problem->H);
unsigned int ACProblemSize = sizeOfPsi(NM_triplet(problem->M),
NM_triplet(problem->H));
unsigned int globalProblemSize = (unsigned)NM_triplet(problem->M)->m;
unsigned int localProblemSize = problem->H->size1;
assert((int)localProblemSize == problem->numberOfContacts * problem->dimension);
assert((int)globalProblemSize == problem->H->size0); /* size(velocity) ==
* Htrans*globalVelocity */
AlartCurnierFun3x3Ptr computeACFun3x3 = NULL;
switch (options->iparam[10])
{
case 0:
{
computeACFun3x3 = &computeAlartCurnierSTD;
break;
}
case 1:
{
computeACFun3x3 = &computeAlartCurnierJeanMoreau;
break;
};
case 2:
{
computeACFun3x3 = &fc3d_AlartCurnierFunctionGenerated;
break;
}
case 3:
{
computeACFun3x3 = &fc3d_AlartCurnierJeanMoreauFunctionGenerated;
break;
}
}
if(options->iparam[9] == 0)
{
/* allocate memory */
assert(options->dWork == NULL);
assert(options->iWork == NULL);
options->dWork = (double *) malloc(
(localProblemSize + /* F */
3 * localProblemSize + /* A */
3 * localProblemSize + /* B */
localProblemSize + /* rho */
ACProblemSize + /* psi */
ACProblemSize + /* rhs */
ACProblemSize + /* tmp2 */
ACProblemSize + /* tmp3 */
ACProblemSize /* solution */) * sizeof(double));
/* XXX big hack here */
options->iWork = (int *) malloc(
(3 * localProblemSize + /* iA */
3 * localProblemSize + /* iB */
3 * localProblemSize + /* pA */
3 * localProblemSize) /* pB */
* sizeof(csi));
options->iparam[9] = 1;
}
assert(options->dWork != NULL);
assert(options->iWork != NULL);
double *F = options->dWork;
double *A = F + localProblemSize;
double *B = A + 3 * localProblemSize;
double *rho = B + 3 * localProblemSize;
double * psi = rho + localProblemSize;
double * rhs = psi + ACProblemSize;
double * tmp2 = rhs + ACProblemSize;
double * tmp3 = tmp2 + ACProblemSize;
double * solution = tmp3 + ACProblemSize;
/* XXX big hack --xhub*/
csi * iA = (csi *)options->iWork;
csi * iB = iA + 3 * localProblemSize;
csi * pA = iB + 3 * localProblemSize;
csi * pB = pA + 3 * localProblemSize;
CSparseMatrix A_;
CSparseMatrix B_;
CSparseMatrix *J;
A_.p = pA;
B_.p = pB;
A_.i = iA;
B_.i = iB;
init3x3DiagBlocks(problem->numberOfContacts, A, &A_);
init3x3DiagBlocks(problem->numberOfContacts, B, &B_);
J = cs_spalloc(NM_triplet(problem->M)->n + A_.m + B_.m,
NM_triplet(problem->M)->n + A_.m + B_.m,
NM_triplet(problem->M)->nzmax + 2*NM_triplet(problem->H)->nzmax +
2*A_.n + A_.nzmax + B_.nzmax, 1, 1);
assert(A_.n == problem->H->size1);
assert(A_.nz == problem->numberOfContacts * 9);
assert(B_.n == problem->H->size1);
assert(B_.nz == problem->numberOfContacts * 9);
fc3d_AlartCurnierFunction(
localProblemSize,
computeACFun3x3,
reaction, velocity,
problem->mu, rho,
F, A, B);
csi Astart = initACPsiJacobian(NM_triplet(problem->M),
NM_triplet(problem->H),
&A_, &B_, J);
assert(Astart > 0);
assert(A_.m == A_.n);
assert(B_.m == B_.n);
assert(A_.m == problem->H->size1);
// compute rho here
for(unsigned int i = 0; i < localProblemSize; ++i) rho[i] = 1.;
// direction
for(unsigned int i = 0; i < ACProblemSize; ++i) rhs[i] = 0.;
// quick hack to make things work
// need to use the functions from NumericsMatrix --xhub
NumericsMatrix *AA_work = createNumericsMatrix(NM_SPARSE, (int)J->m, (int)J->n);
NumericsSparseMatrix* SM = newNumericsSparseMatrix();
SM->triplet = J;
NumericsMatrix *AA = createNumericsMatrixFromData(NM_SPARSE, (int)J->m, (int)J->n, SM);
info[0] = 1;
/* update local velocity from global velocity */
/* an assertion ? */
cblas_dcopy(localProblemSize, problem->b, 1, velocity, 1);
NM_tgemv(1., problem->H, globalVelocity, 1, velocity);
double linear_solver_residual=0.0;
while(iter++ < itermax)
{
/* compute psi */
ACPsi(problem, computeACFun3x3, globalVelocity, reaction, velocity, rho, psi);
/* compute A & B */
fc3d_AlartCurnierFunction(localProblemSize,
computeACFun3x3,
reaction, velocity,
problem->mu, rho,
F, A, B);
/* update J */
updateACPsiJacobian(NM_triplet(problem->M),
NM_triplet(problem->H),
&A_, &B_, J, Astart);
/* rhs = -psi */
cblas_dcopy(ACProblemSize, psi, 1, rhs, 1);
cblas_dscal(ACProblemSize, -1., rhs, 1);
/* get compress column storage for linear ops */
CSparseMatrix* Jcsc = cs_compress(J);
/* Solve: J X = -psi */
/* Solve: AWpB X = -F */
NM_copy(AA, AA_work);
int info_solver = NM_gesv(AA_work, rhs);
if (info_solver > 0)
{
fprintf(stderr, "------------------------ GFC3D - NSN_AC - solver failed info = %d\n", info_solver);
break;
info[0] = 2;
CHECK_RETURN(!cs_check_triplet(NM_triplet(AA_work)));
}
/* Check the quality of the solution */
if (verbose > 0)
{
cblas_dcopy_msan(ACProblemSize, psi, 1, tmp3, 1);
NM_gemv(1., AA, rhs, 1., tmp3);
linear_solver_residual = cblas_dnrm2(ACProblemSize, tmp3, 1);
/* fprintf(stderr, "fc3d esolve: linear equation residual = %g\n", */
/* cblas_dnrm2(problemSize, tmp3, 1)); */
/* for the component wise scaled residual: cf mumps &
* http://www.netlib.org/lapack/lug/node81.html */
}
/* line search */
double alpha = 1;
/* set current solution */
for(unsigned int i = 0; i < globalProblemSize; ++i)
{
solution[i] = globalVelocity[i];
}
for(unsigned int i = 0; i < localProblemSize; ++i)
{
solution[i+globalProblemSize] = velocity[i];
solution[i+globalProblemSize+localProblemSize] = reaction[i];
}
DEBUG_EXPR_WE(
for(unsigned int i = 0; i < globalProblemSize; ++i)
{
printf("globalVelocity[%i] = %6.4e\n",i,globalVelocity[i]);
}
for(unsigned int i = 0; i < localProblemSize; ++i)
{
printf("velocity[%i] = %6.4e\t",i,velocity[i]);
printf("reaction[%i] = %6.4e\n",i,reaction[i]);
}
);
int info_ls = _globalLineSearchSparseGP(problem,
computeACFun3x3,
solution,
rhs,
globalVelocity,
reaction, velocity,
problem->mu, rho, F, psi, Jcsc,
tmp2, &alpha, 100);
cs_spfree(Jcsc);
if(!info_ls)
{
cblas_daxpy(ACProblemSize, alpha, rhs, 1, solution, 1);
}
else
{
cblas_daxpy(ACProblemSize, 1, rhs, 1., solution, 1);
}
for(unsigned int e = 0 ; e < globalProblemSize; ++e)
{
globalVelocity[e] = solution[e];
}
for(unsigned int e = 0 ; e < localProblemSize; ++e)
{
velocity[e] = solution[e+globalProblemSize];
}
for(unsigned int e = 0; e < localProblemSize; ++e)
{
reaction[e] = solution[e+globalProblemSize+localProblemSize];
}
options->dparam[1] = INFINITY;
if(!(iter % erritermax))
{
gfc3d_compute_error(problem,
reaction, velocity, globalVelocity,
tolerance,
&(options->dparam[1]));
}
if(verbose > 0)
printf("------------------------ GFC3D - NSN_AC - iteration %d, residual = %g, linear solver residual = %g, tolerance = %g \n", iter, options->dparam[1],linear_solver_residual, tolerance);
if(options->dparam[1] < tolerance)
{
info[0] = 0;
break;
}
}
