Hi,
I have a problem with PVFS access MPI-IO. I think I installed PVFS2 correctly
since I can use its built-in API like pvfs-ping.
But after installed mpich with ROMIO. I can compile my program, I cannot run
program correctly. It will report an error like bellow:
MPI_File_open: File does not exist, error stack:
ADIO_RESOLVEFILETYPE_FNCALL(461): Invalid file name /mnt/pvfs2/test.out
Is there anyone know how to fix this error? My code is bellow, thanks.
Best,
Kai
my simple mpi-io testing code:
#include <stdio.h>
#include <mpi.h>
main(int argc, char **argv) {
int nprocs;
int myrank;
MPI_File mf;
int errcode;
char msg[MPI_MAX_ERROR_STRING];
int resultlen;
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
errcode = MPI_File_open(MPI_COMM_WORLD, "/mnt/pvfs2/tmp/test-mpi-
io", MPI_MODE_RDONLY, MPI_INFO_NULL, &mf);
if (errcode != MPI_SUCCESS) {
MPI_Error_string(errcode, msg, &resultlen);
fprintf(stderr, "%s: %s\n", "MPI file open error.", msg);
MPI_Abort(MPI_COMM_WORLD, 1);
}
MPI_File_close(&mf);
MPI_Finalize();
return 0;
}
_______________________________________________
Pvfs2-users mailing list
[email protected]
http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
