bool SimAdapt::adaptMesh(const Teuchos::RCP<const Tpetra_Vector>& solution,
const Teuchos::RCP<const Tpetra_Vector>& ovlp_solution)
{
Teuchos::RCP<Albany::AbstractDiscretization> disc = state_mgr_.getDiscretization();
Teuchos::RCP<Albany::SimDiscretization> sim_disc =
Teuchos::rcp_dynamic_cast<Albany::SimDiscretization>(disc);
Teuchos::RCP<Albany::APFMeshStruct> apf_ms =
sim_disc->getAPFMeshStruct();
apf::Mesh* apf_m = apf_ms->getMesh();
apf::MeshSIM* apf_msim = dynamic_cast<apf::MeshSIM*>(apf_m);
bool should_transfer_ip_data = adapt_params_->get<bool>("Transfer IP Data", false);
if (should_transfer_ip_data)
sim_disc->attachQPData();
pParMesh sim_pm = apf_msim->getMesh();
pMSAdapt adapter = MSA_new(sim_pm, 1);
/* TODO: set size field here */
MSA_adapt(adapter, NULL);
MSA_delete(adapter);
apf_m->verify();
sim_disc->updateMesh(should_transfer_ip_data);
if (should_transfer_ip_data)
sim_disc->detachQPData();
return true;
}
bool SimAdapt::adaptMesh()
{
/* dig through all the abstrations to obtain pointers
to the various structures needed */
static int callcount = 0;
Teuchos::RCP<Albany::AbstractDiscretization> disc =
state_mgr_.getDiscretization();
Teuchos::RCP<Albany::SimDiscretization> sim_disc =
Teuchos::rcp_dynamic_cast<Albany::SimDiscretization>(disc);
Teuchos::RCP<Albany::APFMeshStruct> apf_ms =
sim_disc->getAPFMeshStruct();
apf::Mesh* apf_m = apf_ms->getMesh();
apf::MeshSIM* apf_msim = dynamic_cast<apf::MeshSIM*>(apf_m);
pParMesh sim_pm = apf_msim->getMesh();
/* ensure that users don't expect Simmetrix to transfer IP state */
bool should_transfer_ip_data = adapt_params_->get<bool>("Transfer IP Data", false);
/* remove this assert when Simmetrix support IP transfer */
assert(!should_transfer_ip_data);
/* compute the size field via SPR error estimation
on the solution gradient */
apf::Field* sol_flds[3];
for (int i = 0; i <= apf_ms->num_time_deriv; ++i)
sol_flds[i] = apf_m->findField(Albany::APFMeshStruct::solution_name[i]);
apf::Field* grad_ip_fld = spr::getGradIPField(sol_flds[0], "grad_sol",
apf_ms->cubatureDegree);
apf::Field* size_fld = spr::getSPRSizeField(grad_ip_fld, errorBound);
apf::destroyField(grad_ip_fld);
#ifdef SIMDEBUG
/* write the mesh with size field to file */
std::stringstream ss;
ss << "size_" << callcount << '_';
std::string s = ss.str();
apf::writeVtkFiles(s.c_str(), apf_m);
#endif
/* create the Simmetrix adapter */
pMSAdapt adapter = MSA_new(sim_pm, 1);
/* copy the size field from APF to the Simmetrix adapter */
apf::MeshEntity* v;
apf::MeshIterator* it = apf_m->begin(0);
double max_size = adapt_params_->get<double>("Max Size", 1e10);
while ((v = apf_m->iterate(it))) {
double size1 = apf::getScalar(size_fld, v, 0);
double size = std::min(max_size, size1);
MSA_setVertexSize(adapter, (pVertex) v, size);
}
apf_m->end(it);
apf::destroyField(size_fld);
/* tell the adapter to transfer the solution and residual fields */
apf::Field* res_fld = apf_m->findField(Albany::APFMeshStruct::residual_name);
pField sim_sol_flds[3];
for (int i = 0; i <= apf_ms->num_time_deriv; ++i)
sim_sol_flds[i] = apf::getSIMField(sol_flds[i]);
pField sim_res_fld = apf::getSIMField(res_fld);
pPList sim_fld_lst = PList_new();
for (int i = 0; i <= apf_ms->num_time_deriv; ++i)
PList_append(sim_fld_lst, sim_sol_flds[i]);
PList_append(sim_fld_lst, sim_res_fld);
if (apf_ms->useTemperatureHack) {
/* transfer Temperature_old at the nodes */
apf::Field* told_fld = apf_m->findField("temp_old");
pField sim_told_fld = apf::getSIMField(told_fld);
PList_append(sim_fld_lst, sim_told_fld);
}
MSA_setMapFields(adapter, sim_fld_lst);
PList_delete(sim_fld_lst);
#ifdef SIMDEBUG
char simname[80];
sprintf(simname, "preadapt_%d.sms", callcount);
PM_write(sim_pm, simname, sthreadDefault, 0);
sprintf(simname, "preadapt_sol_%d.fld", callcount);
Field_write(sim_sol_fld, simname, 0, 0, 0);
sprintf(simname, "preadapt_res_%d.fld", callcount);
Field_write(sim_res_fld, simname, 0, 0, 0);
Albany::debugAMPMesh(apf_m, "before");
#endif
/* run the adapter */
pProgress progress = Progress_new();
MSA_adapt(adapter, progress);
Progress_delete(progress);
MSA_delete(adapter);
#ifdef SIMDEBUG
sprintf(simname, "adapted_%d.sms", callcount);
PM_write(sim_pm, simname, sthreadDefault, 0);
sprintf(simname, "adapted_sol_%d.fld", callcount);
Field_write(sim_sol_fld, simname, 0, 0, 0);
sprintf(simname, "adapted_res_%d.fld", callcount);
Field_write(sim_res_fld, simname, 0, 0, 0);
Albany::debugAMPMesh(apf_m, "after");
#endif
/* run APF verification on the resulting mesh */
apf_m->verify();
/* update Albany structures to reflect the adapted mesh */
sim_disc->updateMesh(should_transfer_ip_data);
/* see the comment in Albany_APFDiscretization.cpp */
sim_disc->initTemperatureHack();
++callcount;
return true;
}