engine_mpi.cc File Reference

this file gives an implementation of engine interface using MPI, this will allow rabit program to run with MPI, but do not comes with fault tolerant More...

#include <mpi.h>
#include <rabit/base.h>
#include <cstdio>
#include <string>
#include "rabit/internal/engine.h"
#include "rabit/internal/utils.h"

Data Structures
class	rabit::engine::MPIEngine
	implementation of engine using MPI More...

Namespaces
namespace	rabit
	namespace of rabit
namespace	rabit::engine
	core interface of the engine

Functions
bool	rabit::engine::Init (int argc, char *argv[])
	initializes the engine module
bool	rabit::engine::Finalize ()
	finalizes the engine module
IEngine *	rabit::engine::GetEngine ()
	singleton method to get engine
MPI::Datatype	rabit::engine::GetType (mpi::DataType dtype)
MPI::Op	rabit::engine::GetOp (mpi::OpType otype)
void	rabit::engine::Allreduce_ (void *sendrecvbuf, size_t type_nbytes, size_t count, IEngine::ReduceFunction red, mpi::DataType dtype, mpi::OpType op, IEngine::PreprocFunction prepare_fun=nullptr, void *prepare_arg=nullptr)
	perform in-place Allreduce, on sendrecvbuf this is an internal function used by rabit to be able to compile with MPI do not use this function directly

Variables
MPIEngine	rabit::engine::manager

Detailed Description

this file gives an implementation of engine interface using MPI, this will allow rabit program to run with MPI, but do not comes with fault tolerant

Copyright (c) 2014 by Contributors

Author

Tianqi Chen