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177 | #include "meshkit/ParExchangeMesh.hpp"
#include "moab/Range.hpp"
#include "moab/Types.hpp"
#include "RefEntity.hpp"
#include "TDParallel.hpp"
const bool debug_par_exchange_mesh = false;
namespace MeshKit
{
// static registration of this mesh scheme
moab::EntityType ParExchangeMesh_tps[] = {moab::MBVERTEX, moab::MBEDGE, moab::MBTRI, moab::MBTET, moab::MBMAXTYPE};
const moab::EntityType* ParExchangeMesh::output_types()
{ return ParExchangeMesh_tps; }
ParExchangeMesh::ParExchangeMesh(MKCore *mkcore, const MEntVector &me_vec)
: MeshScheme(mkcore, me_vec)
{
// get information related to MOAB parallel communication
m_mpcomm = moab::ParallelComm::get_pcomm(mk_core()->moab_instance(), 0);
if (NULL == m_mpcomm) {
throw Error(iBase_FAILURE, "Parallel communication should be already created.");
}
m_rank = m_mpcomm->proc_config().proc_rank();
m_proc_size = m_mpcomm->proc_config().proc_size();
// create tag
iMesh::Error err = mk_core()->imesh_instance()->createTag("PARALLEL_UNIQUE_ID", 1, iBase_INTEGER, m_mPuniqueIDTag);
if (err != iBase_TAG_ALREADY_EXISTS) {
IBERRCHK(err, "Trouble create a parallel unique id tag handle.");
}
}
ParExchangeMesh::~ParExchangeMesh()
{
std::vector<Range*>::iterator vit;
for (vit = m_shared_entities.begin(); vit != m_shared_entities.end(); vit++)<--- Prefer prefix ++/-- operators for non-primitive types.
delete (*vit);
m_shared_entities.clear();
}
void ParExchangeMesh::setup_this()
{
}
void ParExchangeMesh::execute_this()
{
iMesh::Error err;
MEntVector meshed_mes;
for (MEntSelection::iterator mit = mentSelection.begin(); mit != mentSelection.end(); mit++) {<--- Prefer prefix ++/-- operators for non-primitive types.
ModelEnt *me = mit->first;
RefEntity* entity = reinterpret_cast<RefEntity*> (me->geom_handle());
iBase_EntitySetHandle entityset = reinterpret_cast<iBase_EntitySetHandle> (me->mesh_handle());
TDParallel *td_par = (TDParallel *) entity->get_TD(&TDParallel::is_parallel);
if (td_par == NULL) ECERRCHK(MK_FAILURE, "Exchange entity should have partitioned information.");
unsigned int charge_p = td_par->get_charge_proc();
if (m_rank == charge_p) { // send proc
// get all child meshes
std::vector<iBase_EntityHandle> entities;
err = mk_core()->imesh_instance()->getEntities(entityset, iBase_ALL_TYPES,
iMesh_ALL_TOPOLOGIES, entities);
IBERRCHK(err, "Couldn't get entities of surface entityset.");
// put processors sharing this interface vertex to buffer
DLIList<int>* proc_list = td_par->get_shared_proc_list();
int n_proc_list = proc_list->size();
proc_list->reset();
for (int i = 0; i < n_proc_list; i++) {
unsigned int proc = proc_list->get_and_step();
if (proc != m_rank) {
int ind = get_shared_list(proc);
int n_entity = entities.size();
for (int j = 0; j < n_entity; j++) {
m_shared_entities[ind]->insert(reinterpret_cast<moab::EntityHandle> (entities[j]));
}
m_shared_entities[ind]->insert(reinterpret_cast<moab::EntityHandle> (entityset));
}
}
}
else {
get_shared_list(charge_p); // receive proc: just create shared entity/proc list
meshed_mes.push_back(me);
}
}
// exchange shared entities
if (debug_par_exchange_mesh) {
std::cout << "m_shared_procs_size=" << m_shared_procs.size() << std::endl;
for (unsigned int i = 0; i < m_shared_procs.size(); i++) {
std::cout << "m_shared_procs[" << i << "]=" << m_shared_procs[i] << std::endl;
}
std::cout << "m_shared_entities_size=" << m_shared_entities.size() << std::endl;
for (unsigned int i = 0; i < m_shared_entities.size(); i++) {
std::cout << "m_shared_entities_range[" << i << "]_size=" << m_shared_entities[i]->size() << std::endl;
}
}
int dim = mentSelection.begin()->first->dimension();
moab::ErrorCode rval = m_mpcomm->exchange_owned_meshs(m_shared_procs,
m_shared_entities,
m_recv_reqs,
m_recv_remoteh_reqs,
true, false, false, dim);
MBERRCHK(rval, mk_core()->moab_instance());
// set the model ent mesh with received mesh
int n_meshed = meshed_mes.size();
for (int i = 0; i < n_meshed; i++) {
meshed_mes[i]->set_meshed_state(COMPLETE_MESH);
}
}
int ParExchangeMesh::get_shared_list(const int proc)
{
int ind = -1;
std::vector<unsigned int>::iterator vit =
std::find(m_shared_procs.begin(), m_shared_procs.end(), proc);
if (vit == m_shared_procs.end()) {
ind = m_shared_procs.size();
m_shared_procs.push_back(proc);
m_shared_entities.push_back(new Range);
}
else ind = vit - m_shared_procs.begin();
return ind;
}
void ParExchangeMesh::print_mesh()<--- The function 'print_mesh' is never used.
{
// test
int tmp_procs[MAX_SHARING_PROCS];
moab::EntityHandle tmp_hs[MAX_SHARING_PROCS];
unsigned char pstat;
int num_ps;
moab::Range entities;
moab::ErrorCode rval;
for (moab::EntityType type = MBVERTEX; type != MBMAXTYPE; type++) {
entities.clear();
rval = mk_core()->moab_instance()->get_entities_by_type(0, type, entities);
MBERRCHK(rval, mk_core()->moab_instance());
for (moab::Range::iterator rit = entities.begin(); rit != entities.end(); rit++) {<--- Prefer prefix ++/-- operators for non-primitive types.
rval = m_mpcomm->get_sharing_data(*rit, tmp_procs, tmp_hs, pstat, num_ps);
MBERRCHK(rval, mk_core()->moab_instance());
//std::cout << "ParExchangeMesh::entity=" << *rit << ", type=" << type;
if (type == MBVERTEX) {
double coord[3];
rval = mk_core()->moab_instance()->get_coords(&(*rit), 1, coord);
MBERRCHK(rval, mk_core()->moab_instance());
//std::cout << ", coords=" << coord[0] << " " << coord[1] << " " << coord[2];
}
else if (type != MBENTITYSET) {
std::vector<moab::EntityHandle> connect;
rval = mk_core()->moab_instance()->get_connectivity(&(*rit), 1, connect);
MBERRCHK(rval, mk_core()->moab_instance());
// int n_conn = connect.size();
//std::cout << ", connect=";
//for (int j = 0; j < n_conn; j++) {
//std::cout << connect[j] << " ";
//}
}
/*
std::cout << ", shared_info=";
for (int ii = 0; ii < num_ps; ii++) {
std::cout << tmp_procs[ii] << ":" << tmp_hs[ii] << ", ";
}
std::cout << std::endl;
*/
}
}
}
} // namespace MeshKit
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