Hi again...
One more information: when I access another node on PVFS2 directory to
see the file "teste.txt", this error occurred:
[EMAIL PROTECTED]:/mnt/pvfs2/davivercillo$ ls
helloMPI helloMPI.qsub teste.txt
[EMAIL PROTECTED]:/mnt/pvfs2/davivercillo$ ls -l
Segmentation Fault
On Wed, May 14, 2008 at 4:13 PM, Davi Vercillo C. Garcia
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> Sorry by the multiples messages. I rewrote my program and executed it
> again. This time a weird error ocurred. My program create the file
> "teste.txt" but with these permissions:
>
> [EMAIL PROTECTED]:/mnt/pvfs2/davivercillo$ ls -l
> total 16
> -rwxr-xr-x 1 davivercillo users 8674 2008-05-14 16:02 helloMPI
> -rw-r--r-- 1 davivercillo users 112 2008-05-14 16:02 helloMPI.qsub
> ?--------- ? ? ? ? ? teste.txt
>
> This time, my program is:
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
> #include "mpi.h"
>
> int main(int argc, char** argv) {
> int my_rank; /* Rank of process */
> int p; /* Number of processes */
> int source; /* Rank of sender */
> int dest; /* Rank of receiver */
> int tag = 50; /* Tag for messages */
> char message[100]; /* Storage for the message */
> MPI_Status status; /* Return status for receive */
> MPI_Init(&argc, &argv);
> MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
> MPI_Comm_size(MPI_COMM_WORLD, &p);
>
> FILE *pfile;
>
> if (my_rank != 0) {
> sprintf(message, "Greetings from process %d!", my_rank);
> dest = 0;
> MPI_Send(message, strlen(message)+1, MPI_CHAR, dest, tag,
> MPI_COMM_WORLD);
>
> } else { /* my_rank == 0 */
> for (source = 1 ; source < p ; source++) {
> MPI_Recv(message, 100, MPI_CHAR, source, tag,
> MPI_COMM_WORLD, &status);
> pfile = fopen("teste.txt","a");
> fprintf(pfile,"%s\n", message);
> }
>
> fclose(pfile);
> }
>
> MPI_Finalize();
>
> return 0;
> }
>
> This program works fine on NFS.
>
> --
> Davi Vercillo Carneiro Garcia
>
> Universidade Federal do Rio de Janeiro
> Departamento de Ciência da Computação
> DCC-IM/UFRJ - http://www.dcc.ufrj.br
>
> "Good things come to those who... wait." - Debian Project
>
> "A computer is like air conditioning: it becomes useless when you open
> windows." - Linus Torvalds
>
> "Há duas coisas infinitas, o universo e a burrice humana. E eu estou
> em dúvida quanto o primeiro." - Albert Einstein
>
--
Davi Vercillo Carneiro Garcia
Universidade Federal do Rio de Janeiro
Departamento de Ciência da Computação
DCC-IM/UFRJ - http://www.dcc.ufrj.br
"Good things come to those who... wait." - Debian Project
"A computer is like air conditioning: it becomes useless when you open
windows." - Linus Torvalds
"Há duas coisas infinitas, o universo e a burrice humana. E eu estou
em dúvida quanto o primeiro." - Albert Einstein
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