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/***************************************************************************
* Copyright (C) 2015 by *
* Lam-Tung Nguyen <nltung@gmail.com> *
* *
* *
* 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. *
***************************************************************************/
#ifndef MPIHELPER_H
#define MPIHELPER_H
#include <string>
#include <vector>
#include "utils/tools.h"
#include "utils/checkpoint.h"
#ifdef _IQTREE_MPI
#include <mpi.h>
#endif
#define PROC_MASTER 0
#define TREE_TAG 1 // Message contain trees
#define STOP_TAG 2 // Stop message
#define BOOT_TAG 3 // Message to please send bootstrap trees
#define BOOT_TREE_TAG 4 // bootstrap tree tag
#define LOGL_CUTOFF_TAG 5 // send logl_cutoff for ultrafast bootstrap
using namespace std;
class MPIHelper {
public:
/**
* Singleton method: get one and only one getInstance of the class
*/
static MPIHelper &getInstance();
/** initialize MPI */
void init(int argc, char *argv[]);
/** finalize MPI */
void finalize();
/**
destructor
*/
~MPIHelper();
int getNumProcesses() const {
return numProcesses;
}
void setNumProcesses(int numProcesses) {
MPIHelper::numProcesses = numProcesses;
}
int getProcessID() const {
return processID;
}
bool isMaster() const {
return processID == PROC_MASTER;
}
bool isWorker() const {
return processID != PROC_MASTER;
}
void setProcessID(int processID) {
MPIHelper::processID = processID;
}
/** synchronize random seed from master to all workers */
void syncRandomSeed();
/** count the number of host with the same name as the current host */
int countSameHost();
/** @return true if got any message from another process */
bool gotMessage();
/** wrapper for MPI_Send a string
@param str string to send
@param dest destination process
@param tag message tag
*/
#ifdef _IQTREE_MPI
void sendString(string &str, int dest, int tag);
/** wrapper for MPI_Recv a string
@param[out] str string received
@param src source process
@param tag message tag
@return the source process that sent the message
*/
int recvString(string &str, int src = MPI_ANY_SOURCE, int tag = MPI_ANY_TAG);
/** wrapper for MPI_Send an entire Checkpoint object
@param ckp Checkpoint object to send
@param dest destination process
*/
void sendCheckpoint(Checkpoint *ckp, int dest);
/** wrapper for MPI_Recv an entire Checkpoint object
@param[out] ckp Checkpoint object received
@param src source process
@param tag message tag
@return the source process that sent the message
*/
int recvCheckpoint(Checkpoint *ckp, int src = MPI_ANY_SOURCE);
/**
wrapper for MPI_Bcast to broadcast checkpoint from Master to all Workers
@param ckp Checkpoint object
*/
void broadcastCheckpoint(Checkpoint *ckp);
/**
wrapper for MPI_Gather to gather all checkpoints into Master
@param ckp Checkpoint object
*/
void gatherCheckpoint(Checkpoint *ckp);
#endif
void increaseTreeSent(int inc = 1) {
numTreeSent += inc;
}
void increaseTreeReceived(int inc = 1) {
numTreeReceived += inc;
}
private:
/**
* Remove the buffers for finished messages
*/
int cleanUpMessages();
private:
MPIHelper() { }; // Disable constructor
MPIHelper(MPIHelper const &) { }; // Disable copy constructor
void operator=(MPIHelper const &) { }; // Disable assignment
int processID;
int numProcesses;
public:
int getNumTreeReceived() const {
return numTreeReceived;
}
void setNumTreeReceived(int numTreeReceived) {
MPIHelper::numTreeReceived = numTreeReceived;
}
int getNumTreeSent() const {
return numTreeSent;
}
void setNumTreeSent(int numTreeSent) {
MPIHelper::numTreeSent = numTreeSent;
}
void resetNumbers() {
numTreeSent = 0;
numTreeReceived = 0;
numNNISearch = 0;
}
private:
int numTreeSent;
int numTreeReceived;
public:
int getNumNNISearch() const {
return numNNISearch;
}
void setNumNNISearch(int numNNISearch) {
MPIHelper::numNNISearch = numNNISearch;
}
private:
int numNNISearch;
};
#endif
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