havoqgt::mpi::mpi_communicator Class Reference

#include <mpi.hpp>

Public Member Functions
	mpi_communicator (int argc, char **argv)
	mpi_communicator (MPI_Comm comm)
	~mpi_communicator ()

Private Member Functions
	mpi_communicator (const mpi_communicator &)
	Not Copyable. More...
void	check_mpi (int ret)
	Checks MPI return codes. More...

Private Attributes
MPI_Comm	m_comm
uint32_t	m_size
uint32_t	m_rank
bool	init

Detailed Description

Definition at line 116 of file mpi.hpp.

Constructor & Destructor Documentation

havoqgt::mpi::mpi_communicator::mpi_communicator ( int  argc, char **  argv  )

inline

Definition at line 118 of file mpi.hpp.

    : init(true) {
    check_mpi( MPI_Init(&argc, &argv) );
    m_comm = MPI_COMM_WORLD;
  }

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havoqgt::mpi::mpi_communicator::mpi_communicator ( MPI_Comm  comm )

inline

Definition at line 123 of file mpi.hpp.

    : m_comm(MPI_COMM_WORLD),
      init(false) { }

havoqgt::mpi::mpi_communicator::~mpi_communicator ( )

inline

Definition at line 127 of file mpi.hpp.

                      {
    if(init) {
      check_mpi( MPI_Finalize() );
    }
  }

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havoqgt::mpi::mpi_communicator::mpi_communicator ( const mpi_communicator &  )

private

Not Copyable.

Member Function Documentation

void havoqgt::mpi::mpi_communicator::check_mpi ( int  ret )

inlineprivate

Checks MPI return codes.

Definition at line 138 of file mpi.hpp.

                          {
    if(ret != MPI_SUCCESS) {
      char estring[MPI_MAX_ERROR_STRING];
      int len(0);
      MPI_Error_string(ret, estring, &len);
      if(m_rank==0) {
        std::cerr << "MPI ERROR = " << estring << std::endl;
      }
      MPI_Abort(m_comm, -1);
    }
  }

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Member Data Documentation

bool havoqgt::mpi::mpi_communicator::init

private

Definition at line 153 of file mpi.hpp.

MPI_Comm havoqgt::mpi::mpi_communicator::m_comm

private

Definition at line 150 of file mpi.hpp.

uint32_t havoqgt::mpi::mpi_communicator::m_rank

private

Definition at line 152 of file mpi.hpp.

uint32_t havoqgt::mpi::mpi_communicator::m_size

private

Definition at line 151 of file mpi.hpp.

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

• include/havoqgt/mpi.hpp