[Pvfs2-users] Accessing pvfs2 through MPI-IO problems

[Sam Lang]

Can you try using a filename of pvfs2:/mnt/pvfs2/tmp/test-mpi-io?

-sam

On Apr 4, 2007, at 8:13 PM, Yong Chen wrote:

> Hi,
>
> I installed pvfs-2.6.2 on a 12 nodes cluster and it's working  
> great. Then I recompiled mpich2-1.0.5p3 with pvfs2 support  
> following pvfs2 quick start guide ROMIO support section. MPICH2 is  
> also working fine, but when I tested pvfs2 accesses through MPI-IO,  
> it keeps reporting the following error, seems the the integration  
> of ROMIO and pvfs2 is not successful, but I don't know where I did  
> wrong, can anyone help me figure out this problem? thanks a  lot.
>
> x86-0$ mpiexec -n 1 my-mpi-io-test
> 0: MPI file open error.: File does not exist, error stack:
> 0: ADIO_RESOLVEFILETYPE_FNCALL(291): Invalid file name /mnt/pvfs2/ 
> tmp/test-mpi-io
> 0: [cli_0]: aborting job:
> 0: application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
> rank 0 in job 1  x86-0_33550   caused collective abort of all ranks
>  exit status of rank 0: killed by signal 9
>
> MPICH2 configuration options:
> [root at x86 mpich2-1.0.5p3]# export CFLAGS="-I/usr/local/pvfs-2.6.2/ 
> include/"
> [root at x86 mpich2-1.0.5p3]# export LDFLAGS="-L/usr/local/pvfs-2.6.2/ 
> lib/"
> [root at x86 mpich2-1.0.5p3]# export LIBS="-lpvfs2 -lpthread"
> [root at x86 mpich2-1.0.5p3]#./configure --prefix=/usr/local/ 
> mpich2-1.0.5p3/ --enable-romio --with-pvfs2=/usr/local/pvfs-2.6.2/   
> --with-file-system="pvfs2+ufs+nfs" 2>&1 | tee configure.log
>
> pvfs2 configuration options:
> [root at x86 mpich2-1.0.5p3]#./configure -prefix=/usr/local/ 
> pvfs-2.6.2/ -with-mpi=/usr/local/mpich2-1.0.5p3/
>
> 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;
> }
>
> thanks,
>
> Yong
>
>
> _______________________________________________
> Pvfs2-users mailing list
> Pvfs2-users at beowulf-underground.org
> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
>