28 lines
687 B
C++
28 lines
687 B
C++
#include <mpi.h>
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#include <stdio.h>
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int main(int argc, char **argv) {
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// Initialize the MPI environment
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MPI_Init(NULL, NULL);
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// Get the number of processes
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int world_size;
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MPI_Comm_size(MPI_COMM_WORLD, &world_size);
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// Get the rank of the process
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int world_rank;
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MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);
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// Get the name of the processor
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char processor_name[MPI_MAX_PROCESSOR_NAME];
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int name_len;
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MPI_Get_processor_name(processor_name, &name_len);
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// Print off a hello world message
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printf("Hello world from %s, rank %d out of %d processors\n", processor_name,
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world_rank, world_size);
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// Finalize the MPI environment.
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MPI_Finalize();
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}
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