[mpich-discuss] mpich problem.... net_send: could not write to fd=4, errno = 32

[Luís Miranda]

 Could it possible be anything related with network. I'm running this on a
cluster...

2009/2/4 Rajeev Thakur <thakur at mcs.anl.gov>

>  Your code looks innocuous enough. Not sure why it should fail. I would
> suggest using MPICH2 instead of MPICH-1. MPICH-1 is an old implementation
> that is not actively supported.
>
> Rajeev
>
>  ------------------------------
> *From:* mpich-discuss-bounces at mcs.anl.gov [mailto:
> mpich-discuss-bounces at mcs.anl.gov] *On Behalf Of *Luís Miranda
> *Sent:* Wednesday, February 04, 2009 10:40 AM
> *To:* mpich-discuss at mcs.anl.gov
> *Subject:* [mpich-discuss] mpich problem.... net_send: could not write to
> fd=4,errno = 32
>
>
>
>
> Hi. I'm trying to run this:
>  /opt/mpich/gnu/bin/mpirun -v -np 2    -machinefile program
>
> but i get this *error:*
>
> i'm process 0 de 2...
> ROOT:  trying to send message...
> p0_26706:  p4_error: interrupt SIGSEGV: 11
> Killed by signal 2.
> p0_26706: (0.113281) net_send: could not write to fd=4, errno = 32
>
>
> *This is the code:*
>
> #include <stdio.h>
> #include "mpi.h"
>
>
> int main(int argc, char **argv){
>
>     int message,
>         rank,
>         size,
>         i,
>         tag = 0,
>         namelen;
>
>     char processor_name[MPI_MAX_PROCESSOR_NAME];
>
>     MPI_Status status;
>
>     MPI_Init(&argc, &argv);
>     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
>     MPI_Comm_size(MPI_COMM_WORLD, &size);
>
>     printf("i'm process %d de %d...\n", rank, size);
>
>     MPI_Barrier(MPI_COMM_WORLD);
>
>     if(rank == 0){
>         message = 1;
>         for (i=1; i<size; i++){
>             printf("ROOT: trying to send message...\n");
>             MPI_Ssend(&message, 1, MPI_INT, i, tag, MPI_COMM_WORLD);
>
>         }
>     }else{
>         printf("SLAVE %d: trying to receive message...\n", rank);
>         MPI_Get_processor_name(processor_name,&namelen);
>         MPI_Recv(&message, 1, MPI_INT, MPI_ANY_SOURCE, tag ,
> MPI_COMM_WORLD, &status);
>         printf("SLAVE %d MAQUINA %s: receive message %d\n ",rank,
> processor_name, message);
>     }
>
>     MPI_Finalize();
>     return 0;
> }
>
> *And this is my machine file:*
>
> beta.something.com
> compute-1-0.local
> compute-1-1.local
> compute-1-2.local
>
> Any solution?
>
>
> Thank you.
>
>
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