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| sc::MPIMessageGrp(3) | MPQC | sc::MPIMessageGrp(3) |
NAME
sc::MPIMessageGrp - The MPIMessageGrp class is an concrete implementation of MessageGrp that uses the MPI 1 library.SYNOPSIS
#include <messmpi.h>
Inherits sc::MessageGrp.
Public Member Functions
MPIMessageGrp (MPI_Comm comm)
Use an MPI communicator to create a MessageGrp. MPIMessageGrp (int *argc, char ***argv)
Use argc and argv to create a MPIMessageGrp. MPIMessageGrp (const Ref< KeyVal > &)
Construction MPIMessageGrp given a KeyVal input object. Ref< MessageGrp > clone (void)
Clones (dups) an MPIMessageGrp from MPI_COMM_WORLD. void raw_send (int target, const void *data, int nbyte)
void raw_recv (int sender, void *data, int nbyte)
void raw_sendt (int target, int type, const void *data, int nbyte)
void raw_recvt (int type, void *data, int nbyte)
int probet (int type)
Ask if a given typed message has been received. void sync ()
Synchronize all of the processors. void sum (double *, int n, double *scratch=0, int target=-1)
Global sum reduction. void sum (int *, int n, int *scratch=0, int target=-1)
void reduce (double *, int n, GrpReduce< double > &, double *scratch=0, int target=-1)
Global generic reduction. void reduce (unsigned int *, int n, GrpReduce< unsigned int > &, unsigned int *scratch=0, int target=-1)
void reduce (int *, int n, GrpReduce< int > &, int *scratch=0, int target=-1)
void reduce (char *, int n, GrpReduce< char > &, char *scratch=0, int target=-1)
void reduce (unsigned char *, int n, GrpReduce< unsigned char > &, unsigned char *scratch=0, int target=-1)
void reduce (signed char *, int n, GrpReduce< signed char > &, signed char *scratch=0, int target=-1)
void reduce (short *, int n, GrpReduce< short > &, short *scratch=0, int target=-1)
void reduce (float *, int n, GrpReduce< float > &, float *scratch=0, int target=-1)
void reduce (long *, int n, GrpReduce< long > &, long *scratch=0, int target=-1)
void raw_bcast (void *data, int nbyte, int from)
Protected Member Functions
void init (MPI_Comm comm, int *argc=0, char ***argv=0)
Not thread-safe due to race condition on nmpi_grps variable.
Protected Attributes
void * buf
int bufsize
int rnode
int rtag
int rlen
bool use_messagegrp_collectives_
If true use the generic collective routines in the base class. Ref< ThreadGrp > threadgrp
MPI_Comm commgrp
Currently each commgrp is a dup of MPI_COMM_WORLD.
Static Protected Attributes
static int nmpi_grps
Number of MPIMessageGrp's currently in use. static Ref< ThreadLock > grplock
lock to access nmpi_grps variable
Additional Inherited Members
Detailed Description
The MPIMessageGrp class is an concrete implementation of MessageGrp that uses the MPI 1 library.Constructor & Destructor Documentation
sc::MPIMessageGrp::MPIMessageGrp (MPI_Comm comm)
Use an MPI communicator to create a MessageGrp. The comm argument could be a subset of MPI_COMM_WORLD, for example.sc::MPIMessageGrp::MPIMessageGrp (int * argc, char *** argv)
Use argc and argv to create a MPIMessageGrp. This would have to be used for implementations of MPI that have MPI_Init fill in argc and argv.Member Function Documentation
Ref< MessageGrp > sc::MPIMessageGrp::clone (void) [virtual]
Clones (dups) an MPIMessageGrp from MPI_COMM_WORLD.Implements sc::MessageGrp.
int sc::MPIMessageGrp::probet (int type) [virtual]
Ask if a given typed message has been received.Implements sc::MessageGrp.
void sc::MPIMessageGrp::raw_bcast (void * data, int nbyte, int from) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::raw_recv (int sender, void * data, int nbyte) [virtual]
Implements sc::MessageGrp.void sc::MPIMessageGrp::raw_recvt (int type, void * data, int nbyte) [virtual]
Implements sc::MessageGrp.void sc::MPIMessageGrp::raw_send (int target, const void * data, int nbyte) [virtual]
Implements sc::MessageGrp.void sc::MPIMessageGrp::raw_sendt (int target, int type, const void * data, int nbyte) [virtual]
Implements sc::MessageGrp.void sc::MPIMessageGrp::reduce (char *, int n, GrpReduce< char > &, char * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (double *, int n, GrpReduce< double > &, double * scratch = 0, int target = -1) [virtual]
Global generic reduction. Similar members exist for each of the basic types.Reimplemented from sc::MessageGrp.
void sc::MPIMessageGrp::reduce (float *, int n, GrpReduce< float > &, float * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (int *, int n, GrpReduce< int > &, int * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (long *, int n, GrpReduce< long > &, long * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (short *, int n, GrpReduce< short > &, short * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (signed char *, int n, GrpReduce< signed char > &, signed char * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (unsigned char *, int n, GrpReduce< unsigned char > &, unsigned char * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::reduce (unsigned int *, int n, GrpReduce< unsigned int > &, unsigned int * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::sum (double * data, int n, double * = 0, int target = -1) [virtual]
Global sum reduction. Similar members exist for each of the basic types.Reimplemented from sc::MessageGrp.
void sc::MPIMessageGrp::sum (int *, int n, int * scratch = 0, int target = -1) [virtual]
Reimplemented from sc::MessageGrp.void sc::MPIMessageGrp::sync () [virtual]
Synchronize all of the processors.Reimplemented from sc::MessageGrp.
Author
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