[MPICH] Errors in MPICH2

[Rajeev Thakur]

Yes, that is a known bug (that MPI_Type_create_resized is not recognized by
ROMIO). You can do the same thing by using MPI_Type_struct with an explicit
LB and UB. We will fix it in a future release.
 
Rajeev
 


  _____  

From: owner-mpich-discuss at mcs.anl.gov
[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Luiz Mendes
Sent: Sunday, January 28, 2007 5:49 AM
To: mpich-discuss
Subject: [MPICH] Errors in MPICH2


I was trying to run this example

#include "mpi.h"
#include <stdio.h>
#define BUFSIZE 100000
int main(int argc, char *argv[])
{
    int i, myrank, numprocs;
    
    MPI_Status status;
    MPI_Init(&argc, &argv);
    MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
    MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
    
    double start, finish, tempo;
    MPI_Aint lb, extent;
    MPI_Datatype etype, filetype, contig; 
    MPI_Offset disp;
    MPI_File fh;
    int buf[1000];
    MPI_File_open(MPI_COMM_WORLD, "data.dat",MPI_MODE_CREATE |
MPI_MODE_RDWR, MPI_INFO_NULL, &fh); 
    MPI_Type_contiguous(2, MPI_INT, &contig);
    lb = 0;
    extent = 6 * sizeof(int);
    MPI_Type_create_resized(contig, lb, extent, &filetype); 
    MPI_Type_commit(&filetype);
    disp = 5 * sizeof(int); /* assume displacement in this file view
    is of size equal to 5 integers */
    etype = MPI_INT;
    MPI_File_set_view(fh, disp, etype, filetype, "native",MPI_INFO_NULL);
    start=MPI_Wtime();
    MPI_File_write(fh, buf, 1000, MPI_INT, MPI_STATUS_IGNORE);
    finish=MPI_Wtime(); 
    printf("\nResult : %f\n",finish-start);
    MPI_File_close(&fh);
    MPI_Finalize();
    return 1;
}

and it fails with this message  below:

Error: Unsupported datatype passed to ADIOI_Count_contiguous_blocks
[cli_0]: aborting job: 
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
rank 0 in job 1  luizmendes_34376   caused collective abort of all ranks
  exit status of rank 0: return code 1

what it could be?

thanks
luiz mendes



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