/usr/include/relion-1.4/src/mpi.h is in librelion+mpi-dev 1.4+dfsg-2+b2.
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*
* Author: "Sjors H.W. Scheres"
* MRC Laboratory of Molecular Biology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This complete copyright notice must be included in any revised version of the
* source code. Additional authorship citations may be added, but existing
* author citations must be preserved.
***************************************************************************/
/***************************************************************************
* Authors: J.M. de la Rosa Trevin (jmdelarosa@cnb.csic.es)
*
*
* Unidad de Bioinformatica of Centro Nacional de Biotecnologia , CSIC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*
* All comments concerning this program package may be sent to the
* e-mail address 'xmipp@cnb.csic.es'
***************************************************************************/
#ifndef MPI_H_
#define MPI_H_
#include <mpi.h>
#include <cstddef>
#include <cstdlib>
#include <cstdio>
#include <unistd.h>
#include "src/error.h"
#include "src/macros.h"
/** Class to wrapp some MPI common calls in an work node.
*
*/
class MpiNode
{
public:
int rank, size;
MpiNode(int &argc, char ** argv);
~MpiNode();
// Only true if rank == 0
bool isMaster() const;
// Prints the random subset for this rank
int myRandomSubset() const;
/** Wait on a barrier for the other MPI nodes */
void barrierWait();
/** Build in some better error handling and (hopefully better) robustness to communication failures in the MPI_Send/MPI_Recv pairs....
*/
int relion_MPI_Send(void *buf, std::ptrdiff_t count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm);
int relion_MPI_Recv(void *buf, std::ptrdiff_t count, MPI_Datatype datatype, int source, int tag, MPI_Comm comm, MPI_Status &status);
int relion_MPI_Bcast(void *buffer, int count, MPI_Datatype datatype, int root, MPI_Comm comm);
/* Better error handling of MPI error messages */
void report_MPI_ERROR(int error_code);
};
// General function to print machinenames on all MPI nodes
void printMpiNodesMachineNames(MpiNode &node, int nthreads = 1);
#endif /* MPI_H_ */
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