Dear all,
today I wrote this small sample program
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include "mpi.h"
int main(int argc, char *argv[]) {
time_t t;
char str[256];
int rank;
MPI_Datatype String256;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Type_contiguous(256, MPI_CHAR, &String256);
MPI_Type_commit(&String256);
MPI_Type_set_name(String256, "String256");
MPI_Comm_set_name(MPI_COMM_WORLD, "MPI Universe");
if (rank==0) {
t=time(NULL);
strncpy(str, ctime(&t), 256);
}
MPI_Bcast(str, 1, String256, 0, MPI_COMM_WORLD);
printf("rank %i: %s", rank, str);
MPI_Type_free(&String256);
MPI_Finalize();
}
Unfortunately when I run this code with xmpi, the datatype shown in xmpi
datatype window is "MPI_CONTIG (256) MPI_CHAR" not "String256" as I
expected. Does xmpi not support MPI_Type_set_name functionality?
MPI_Comm_set_name seams to work fine.
Are there plans to add support for MPI_Type_set_name functionality? This
would be a usefull feature.
Heiko
P.S.: I am using xmpi 2.2.3b8 with LAM/MPI 7.0.6.
--
-- Man kann ohne Liebe Holz hacken, Ziegel formen, Eisen schmieden. Aber
-- mit Menschen kann man nicht ohne Liebe umgehen. (Leo Tolstoj)
-- Supercomputing in Magdeburg @ http://tina.nat.uni-magdeburg.de
-- Heiko Bauke @ http://www.uni-magdeburg.de/bauke
|
