Parallel data in MOAB. More...

#include <ParallelData.hpp>

Collaboration diagram for moab::ParallelData:

Public Member Functions
	ParallelData (Interface impl, ParallelComm pcomm=NULL)
	constructor; if non-null parallelcomm, that is used to determine rank, otherwise rank is taken from impl More...

ErrorCode	get_partition_sets (Range &part_sets, const char *tag_name=NULL)
	return partition sets; if tag_name is input, gets sets with that tag name, otherwise uses PARALLEL_PARTITION tag More...

ErrorCode	get_interface_sets (std::vector< EntityHandle > &iface_sets, std::vector< int > &iface_procs)
	get communication interface sets and the processors with which this processor communicates; sets are sorted by processor More...

Private Attributes
Interface *	mbImpl
	interface instance to which this instance corresponds More...

ParallelComm *	parallelComm
	ParallelComm object to which this is bound. More...

Detailed Description

Parallel data in MOAB.

Author: Tim Tautges

This class implements methods to retrieve information about the parallel mesh from MOAB. Most of this data can be retrieved directly from MOAB as sets and tags; this class provides convenience methods implemented on top of other MOAB functions.

Definition at line 22 of file ParallelData.hpp.

Constructor & Destructor Documentation

◆ ParallelData()

moab::ParallelData::ParallelData	(	Interface *	impl,
		ParallelComm *	pcomm = `NULL`
	)

inline

constructor; if non-null parallelcomm, that is used to determine rank, otherwise rank is taken from impl

Definition at line 45 of file ParallelData.hpp.

45 : mbImpl( impl ), parallelComm( pcomm ) {}

Member Function Documentation

◆ get_interface_sets()

ErrorCode moab::ParallelData::get_interface_sets	(	std::vector< EntityHandle > &	iface_sets,
		std::vector< int > &	iface_procs
	)

get communication interface sets and the processors with which this processor communicates; sets are sorted by processor

Definition at line 34 of file ParallelData.cpp.

 {
 #define CONTINUE \
  { \
  result = tmp_result; \
  continue; \
  }
  iface_sets.clear();
  iface_procs.clear();
  
  Tag proc_tag = 0, procs_tag = 0;
  ErrorCode result = MB_SUCCESS;
  int my_rank;
  if( parallelComm )
  my_rank = parallelComm->proc_config().proc_rank();
  else
  return MB_FAILURE;
  
  std::multimap< int, EntityHandle > iface_data;
  
  for( int i = 0; i < 2; i++ )
  {
  ErrorCode tmp_result;
  
  if( 0 == i )
  tmp_result = mbImpl->tag_get_handle( PARALLEL_SHARED_PROC_TAG_NAME, 1, MB_TYPE_INTEGER, proc_tag );
  else
  tmp_result =
  mbImpl->tag_get_handle( PARALLEL_SHARED_PROCS_TAG_NAME, MAX_SHARING_PROCS, MB_TYPE_INTEGER, proc_tag );
  if( MB_SUCCESS != tmp_result ) CONTINUE;
  
  int tsize;
  tmp_result = mbImpl->tag_get_length( proc_tag, tsize );
  if( 0 == tsize || MB_SUCCESS != tmp_result ) CONTINUE;
  
  Range proc_sets;
  tmp_result =
  mbImpl->get_entities_by_type_and_tag( 0, MBENTITYSET, &proc_tag, NULL, 1, proc_sets, Interface::UNION );
  if( MB_SUCCESS != tmp_result ) CONTINUE;
  
  if( proc_sets.empty() ) CONTINUE;
  
  std::vector< int > proc_tags( proc_sets.size() * tsize );
  tmp_result = mbImpl->tag_get_data( procs_tag, proc_sets, &proc_tags[0] );
  if( MB_SUCCESS != tmp_result ) CONTINUE;
  int k;
  Range::iterator rit;
  
  for( k = 0, rit = proc_sets.begin(); rit != proc_sets.end(); ++rit, k++ )
  {
  for( int j = 0; j < tsize; j++ )
  {
  if( my_rank != proc_tags[2 * k + j] && proc_tags[2 * k + j] >= 0 )
  iface_data.insert( std::pair< int, EntityHandle >( proc_tags[2 * k + j], *rit ) );
  }
  }
  }
  
  // now get the results in sorted order
  std::multimap< int, EntityHandle >::iterator mit;
  for( mit = iface_data.begin(); mit != iface_data.end(); ++mit )
  iface_procs.push_back( ( *mit ).first ), iface_sets.push_back( ( *mit ).second );
  
  return result;
 }

References moab::Range::begin(), CONTINUE, moab::Range::empty(), moab::Range::end(), ErrorCode, moab::Interface::get_entities_by_type_and_tag(), MAX_SHARING_PROCS, MB_SUCCESS, MB_TYPE_INTEGER, MBENTITYSET, mbImpl, PARALLEL_SHARED_PROC_TAG_NAME, PARALLEL_SHARED_PROCS_TAG_NAME, parallelComm, moab::ParallelComm::proc_config(), moab::ProcConfig::proc_rank(), moab::Range::size(), moab::Interface::tag_get_data(), moab::Interface::tag_get_handle(), moab::Interface::tag_get_length(), and moab::Interface::UNION.

◆ get_partition_sets()

ErrorCode moab::ParallelData::get_partition_sets	(	Range &	part_sets,
		const char *	tag_name = `NULL`
	)

return partition sets; if tag_name is input, gets sets with that tag name, otherwise uses PARALLEL_PARTITION tag

Definition at line 13 of file ParallelData.cpp.

 {
  Tag part_tag = 0;
  ErrorCode result;
  
  if( NULL != tag_name )
  result = mbImpl->tag_get_handle( tag_name, 1, MB_TYPE_INTEGER, part_tag );
  else
  result = mbImpl->tag_get_handle( PARALLEL_PARTITION_TAG_NAME, 1, MB_TYPE_INTEGER, part_tag );
  
  if( MB_SUCCESS != result )
  return result;
  else if( 0 == part_tag )
  return MB_TAG_NOT_FOUND;
  
  result = mbImpl->get_entities_by_type_and_tag( 0, MBENTITYSET, &part_tag, NULL, 1, part_sets, Interface::UNION );
  return result;
 }

References ErrorCode, moab::Interface::get_entities_by_type_and_tag(), MB_SUCCESS, MB_TAG_NOT_FOUND, MB_TYPE_INTEGER, MBENTITYSET, mbImpl, PARALLEL_PARTITION_TAG_NAME, moab::Interface::tag_get_handle(), and moab::Interface::UNION.

Member Data Documentation

◆ mbImpl

Interface* moab::ParallelData::mbImpl

private

interface instance to which this instance corresponds

Definition at line 39 of file ParallelData.hpp.

Referenced by get_interface_sets(), and get_partition_sets().

◆ parallelComm

ParallelComm* moab::ParallelData::parallelComm

private

ParallelComm object to which this is bound.

Definition at line 42 of file ParallelData.hpp.

Referenced by get_interface_sets().

The documentation for this class was generated from the following files:

Public Member Functions

Private Attributes