ghost_thin_layers.cpp File Reference

#include "moab/ParallelComm.hpp"
#include "moab/Core.hpp"
#include "moab_mpi.h"
#include "TestUtil.hpp"
#include "MBTagConventions.hpp"
#include <iostream>
#include <sstream>

Include dependency graph for ghost_thin_layers.cpp:

Go to the source code of this file.

Functions
void	test_correct_ghost ()
void	test_read_with_thin_ghost_layer ()
int	main (int argc, char *argv[])

Variables
std::string	filename = TestDir + "unittest/io/ln4.h5m"

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 73 of file ghost_thin_layers.cpp.

{
 MPI_Init( &argc, &argv );
 int nproc, rank;
 MPI_Comm_size( MPI_COMM_WORLD, &nproc );
 MPI_Comm_rank( MPI_COMM_WORLD, &rank );
 if( nproc <= 3 )
 {
 std::cout << " launch it on at least 4 processes. \n";
 MPI_Finalize();
 return 0;
 }
 
 int result = 0;
 if( argc >= 2 ) filename = argv[1]; // to be able to test other files too
 
 result += RUN_TEST( test_read_with_thin_ghost_layer );
 result += RUN_TEST( test_correct_ghost );
 
 MPI_Finalize();
 return 0;
}

References filename, MPI_COMM_WORLD, rank, RUN_TEST, test_correct_ghost(), and test_read_with_thin_ghost_layer().

test_correct_ghost()

void test_correct_ghost

(

)

Definition at line 14 of file ghost_thin_layers.cpp.

{
 int nproc, rank;
 MPI_Comm_size( MPI_COMM_WORLD, &nproc );
 MPI_Comm_rank( MPI_COMM_WORLD, &rank );
 // Get MOAB instance
 Interface* mb = new( std::nothrow ) Core;
 
 ErrorCode rval = MB_SUCCESS;
 
 // Get the ParallelComm instance
 ParallelComm* pcomm = new ParallelComm( mb, MPI_COMM_WORLD );
 
 char read_opts[] = "PARALLEL=READ_PART;PARALLEL_RESOLVE_SHARED_ENTS;PARTITION=PARALLEL_"
 "PARTITION;PARALLEL_GHOSTS=2.0.1";
 rval = mb->load_file( filename.c_str(), 0, read_opts );CHECK_ERR( rval );
 
 if( nproc >= 3 )
 {
 rval = pcomm->correct_thin_ghost_layers();CHECK_ERR( rval );
 }
 
 rval = pcomm->exchange_ghost_cells( 2, 0, 2, 0, true );CHECK_ERR( rval ); // true to store remote handles
 
 // write in serial the database , on each rank
 std::ostringstream outfile;
 outfile << "testReadThin_n" << nproc << "." << rank << ".h5m";
 
 rval = mb->write_file( outfile.str().c_str() ); // everything on local root
 CHECK_ERR( rval );
 delete mb;
}

References CHECK_ERR, moab::ParallelComm::correct_thin_ghost_layers(), ErrorCode, moab::ParallelComm::exchange_ghost_cells(), filename, moab::Core::load_file(), mb, MB_SUCCESS, MPI_COMM_WORLD, outfile, rank, and moab::Core::write_file().

Referenced by main().

test_read_with_thin_ghost_layer()

void test_read_with_thin_ghost_layer

(

)

Definition at line 47 of file ghost_thin_layers.cpp.

{
 int nproc, rank;
 MPI_Comm_size( MPI_COMM_WORLD, &nproc );
 MPI_Comm_rank( MPI_COMM_WORLD, &rank );
 moab::Core* mb = new moab::Core();
 
 ErrorCode rval = MB_SUCCESS;
 // Get the ParallelComm instance
 ParallelComm* pcomm = new ParallelComm( mb, MPI_COMM_WORLD );
 
 char read_opts[] = "PARALLEL=READ_PART;PARALLEL_RESOLVE_SHARED_ENTS;PARTITION=PARALLEL_"
 "PARTITION;PARALLEL_GHOSTS=2.0.1;PARALLEL_THIN_GHOST_LAYER;";
 rval = mb->load_file( filename.c_str(), 0, read_opts );CHECK_ERR( rval );
 
 rval = pcomm->exchange_ghost_cells( 2, 0, 2, 0, true );CHECK_ERR( rval ); // true to store remote handles
 
 // write in serial the database , on each rank
 std::ostringstream outfile;
 outfile << "testReadGhost_n" << nproc << "." << rank << ".h5m";
 
 rval = mb->write_file( outfile.str().c_str() ); // everything on local root
 CHECK_ERR( rval );
 delete mb;
}

References CHECK_ERR, ErrorCode, moab::ParallelComm::exchange_ghost_cells(), filename, moab::Core::load_file(), mb, MB_SUCCESS, MPI_COMM_WORLD, outfile, rank, and moab::Core::write_file().

Referenced by main().

Variable Documentation

filename

std::string filename = TestDir + "unittest/io/ln4.h5m"

Definition at line 10 of file ghost_thin_layers.cpp.

Referenced by main(), test_correct_ghost(), and test_read_with_thin_ghost_layer().