madness::detail::WorldMpi Class Reference

MPI singleton that manages MPI setup and teardown for MADNESS. More...

#include <worldmpi.h>

Public Member Functions
	~WorldMpi ()
	WorldMpi destructor. More...

Static Public Member Functions
static void	initialize (int &argc, char **&argv, int requested)
	Initialize the MPI runtime. More...
static void	finalize ()
	Finalize the MPI runtime. More...

Friends
class	WorldMpiRuntime

Detailed Description

MPI singleton that manages MPI setup and teardown for MADNESS.

MADNESS will call WorldMpi::initialize and WorldMpi::finalize to setup and teardown the MPI runtime.

Constructor & Destructor Documentation

madness::detail::WorldMpi::~WorldMpi ( )

inline

WorldMpi destructor.

This will teardown the MPI, SafeMPI

References SafeMPI::Detach_buffer(), SafeMPI::Finalize(), MPI_Error_string(), MPI_MAX_ERROR_STRING, MPI_SUCCESS, and strncpy().

Member Function Documentation

static void madness::detail::WorldMpi::finalize ( )

inlinestatic

Finalize the MPI runtime.

This function starts the teardown process of the MPI runtime. The actual MPI_Finalize will only be called when all the objects using MPI have been destroyed.

References madness::tr1::shptr::shared_ptr< T >::reset().

Referenced by madness::finalize().

static void madness::detail::WorldMpi::initialize ( int &  argc, char **&  argv, int  requested  )

inlinestatic

Initialize the MPI runtime.

This function starts the MPI runtime. If MPI is already running, then MADNESS delegate responsibility for MPI to the user. In either case, MPI thread support is checked to make sure MPI will play nice with MADNESS.

Parameters

argc	The number of command line arguments
argv	The values of command line arguments
requested	The requested thread support for MPI runtime

Exceptions

madness::Exception	When MADNESS has already been initialized.
madness::Exception	When MPI has already been finalized.
SafeMPI::Exception	When an MPI error occurs.

References SafeMPI::COMM_WORLD, SafeMPI::Intracomm::Get_rank(), SafeMPI::Is_finalized(), SafeMPI::Is_initialized(), MPI_Abort(), MPI_COMM_WORLD, MPI_THREAD_STRING, SafeMPI::Query_thread(), and madness::tr1::shptr::shared_ptr< T >::reset().

Referenced by madness::initialize().

Friends And Related Function Documentation

friend class WorldMpiRuntime

friend

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

• worldmpi.h
• worldmpi.cc