git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@91 331e1502-861f-0410-8da2-ba01fb791d7f
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trunk/paradiseo-peo/src/rmc/mpi/mess.cpp
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trunk/paradiseo-peo/src/rmc/mpi/mess.cpp
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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// "mess.cpp"
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// (c) OPAC Team, LIFL, August 2005
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/* This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: paradiseo-help@lists.gforge.inria.fr
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*/
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#include <mpi.h>
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#include <vector>
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#include "mess.h"
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#include "../../core/peo_debug.h"
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#include "node.h"
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#define MPI_BUF_SIZE 1024*64
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static char mpi_buf [MPI_BUF_SIZE];
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static int pos_buf ;
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static std :: vector <char *> act_buf; /* Active buffers */
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static std :: vector <MPI_Request *> act_req; /* Active requests */
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void cleanBuffers () {
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for (unsigned i = 0; i < act_req.size ();) {
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MPI_Status stat ;
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int flag ;
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MPI_Test (act_req [i], & flag, & stat) ;
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if (flag) {
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delete act_buf [i] ;
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delete act_req [i] ;
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act_buf [i] = act_buf.back () ;
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act_buf.pop_back () ;
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act_req [i] = act_req.back () ;
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act_req.pop_back () ;
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}
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else
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i ++;
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}
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}
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void waitBuffers () {
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printDebugMessage ("waiting the termination of the asynchronous operations to complete");
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for (unsigned i = 0; i < act_req.size (); i ++) {
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MPI_Status stat ;
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MPI_Wait (act_req [i], & stat) ;
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delete act_buf [i] ;
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delete act_req [i] ;
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}
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}
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bool probeMessage (int & __src, int & __tag) {
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int flag;
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MPI_Status stat;
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MPI_Iprobe (MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, & flag, & stat);
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__src = stat.MPI_SOURCE;
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__tag = stat.MPI_TAG;
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return flag;
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}
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void waitMessage () {
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MPI_Status stat;
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MPI_Probe (MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, & stat);
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}
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void initMessage () {
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pos_buf = 0;
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}
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void sendMessage (int __to, int __tag) {
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cleanBuffers ();
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act_buf.push_back (new char [pos_buf]);
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act_req.push_back (new MPI_Request);
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memcpy (act_buf.back (), mpi_buf, pos_buf);
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MPI_Isend (act_buf.back (), pos_buf, MPI_PACKED, __to, __tag, MPI_COMM_WORLD, act_req.back ());
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}
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void sendMessageToAll (int __tag) {
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for (int i = 0; i < getNumberOfNodes (); i ++)
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sendMessage (i, __tag);
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}
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void receiveMessage (int __from, int __tag) {
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MPI_Status stat;
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MPI_Request req;
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MPI_Irecv (mpi_buf, MPI_BUF_SIZE, MPI_PACKED, __from, __tag, MPI_COMM_WORLD, & req) ;
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MPI_Wait (& req, & stat) ;
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}
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/* Char */
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void pack (const char & __c) {
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MPI_Pack ((void *) & __c, 1, MPI_CHAR, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Float */
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void pack (const float & __f, int __nitem) {
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MPI_Pack ((void *) & __f, __nitem, MPI_FLOAT, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Double */
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void pack (const double & __d, int __nitem) {
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MPI_Pack ((void *) & __d, __nitem, MPI_DOUBLE, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Integer */
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void pack (const int & __i, int __nitem) {
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MPI_Pack ((void *) & __i, __nitem, MPI_INT, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Unsigned int. */
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void pack (const unsigned int & __ui, int __nitem) {
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MPI_Pack ((void *) & __ui, __nitem, MPI_UNSIGNED, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Short int. */
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void pack (const short & __sh, int __nitem) {
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MPI_Pack ((void *) & __sh, __nitem, MPI_SHORT, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Unsigned short */
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void pack (const unsigned short & __ush, int __nitem) {
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MPI_Pack ((void *) & __ush, __nitem, MPI_UNSIGNED_SHORT, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Long */
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void pack (const long & __l, int __nitem) {
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MPI_Pack ((void *) & __l, __nitem, MPI_LONG, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Unsigned long */
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void pack (const unsigned long & __ul, int __nitem) {
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MPI_Pack ((void *) & __ul, __nitem, MPI_UNSIGNED_LONG, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* String */
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void pack (const char * __str) {
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int len = strlen (__str) + 1;
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MPI_Pack (& len, 1, MPI_INT, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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MPI_Pack ((void *) __str, len, MPI_CHAR, mpi_buf, MPI_BUF_SIZE, & pos_buf, MPI_COMM_WORLD);
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}
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/* Char */
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void unpack (char & __c) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __c, 1, MPI_CHAR, MPI_COMM_WORLD);
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}
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/* Float */
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void unpack (float & __f, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __f, __nitem, MPI_FLOAT, MPI_COMM_WORLD);
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}
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/* Double */
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void unpack (double & __d, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __d, __nitem, MPI_DOUBLE, MPI_COMM_WORLD);
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}
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/* Integer */
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void unpack (int & __i, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __i, __nitem, MPI_INT, MPI_COMM_WORLD);
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}
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/* Unsigned int. */
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void unpack (unsigned int & __ui, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __ui, __nitem, MPI_UNSIGNED, MPI_COMM_WORLD);
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}
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/* Short int. */
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void unpack (short & __sh, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __sh, __nitem, MPI_SHORT, MPI_COMM_WORLD);
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}
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/* Unsigned short */
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void unpack (unsigned short & __ush, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __ush, __nitem, MPI_UNSIGNED_SHORT, MPI_COMM_WORLD);
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}
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/* Long */
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void unpack (long & __l, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __l, __nitem, MPI_LONG, MPI_COMM_WORLD);
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}
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/* Unsigned long */
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void unpack (unsigned long & __ul, int __nitem) {
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & __ul, __nitem, MPI_UNSIGNED_LONG, MPI_COMM_WORLD);
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}
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/* String */
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void unpack (char * __str) {
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int len;
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, & len, 1, MPI_INT, MPI_COMM_WORLD);
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MPI_Unpack (mpi_buf, MPI_BUF_SIZE, & pos_buf, __str, len, MPI_CHAR, MPI_COMM_WORLD);
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}
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