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https://github.com/ceph/ceph
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9213a23f14
git-svn-id: https://ceph.svn.sf.net/svnroot/ceph@1138 29311d96-e01e-0410-9327-a35deaab8ce9
44 lines
834 B
C++
44 lines
834 B
C++
#include <mpi.h>
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#include "NewMessenger.h"
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/*
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* start up NewMessenger via MPI.
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*/
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pair<int,int> mpi_bootstrap_new(int& argc, char**& argv)
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{
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MPI_Init(&argc, &argv);
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int mpi_world;
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int mpi_rank;
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MPI_Comm_size(MPI_COMM_WORLD, &mpi_world);
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MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
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tcpaddr_t nsaddr;
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memset(&nsaddr, 0, sizeof(nsaddr));
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if (mpi_rank == 0) {
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// i am root.
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rank.my_rank = 0;
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rank.start_rank(nsaddr);
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nsaddr = rank.get_listen_addr();
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}
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int r = MPI_Bcast(&nsaddr, sizeof(nsaddr), MPI_CHAR,
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0, MPI_COMM_WORLD);
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dout(30) << "r = " << r << " ns tcpaddr is " << nsaddr << endl;
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if (mpi_rank != 0) {
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rank.start_rank(nsaddr);
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}
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MPI_Barrier(MPI_COMM_WORLD);
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//g_clock.tare();
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MPI_Finalize();
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return pair<int,int>(mpi_rank, mpi_world);
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}
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