[MPICH] error 66, MPI 1.04p1

[Rajeev Thakur]

You are doing too many Isends without calling MPI_Wait to free the requests.
You need to add MPI_Wait.

Rajeev 

> -----Original Message-----
> From: owner-mpich-discuss at mcs.anl.gov 
> [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of chong tan
> Sent: Monday, August 28, 2006 3:10 PM
> To: mpich-discuss at mcs.anl.gov
> Subject: [MPICH] error 66, MPI 1.04p1
> 
> run this liktle test and get error 66.
> 
> #define MPICH_IGNORE_CXX_SEEK
> #include "stdio.h"
> #include "mpi.h"
> 
> 
> 
> #define COUNT           200000
> #define DATA_SIZE       2048
> 
> main( int *argc, char ***argv )
> {
>    int  rank, nproc ;
>    int  buf[ DATA_SIZE ] ;
>    int  **inbuf ;
>    int  i, j ;
>    char *processor_name ;
> 
>    processor_name = new char [ MPI_MAX_PROCESSOR_NAME
> ] ;
>    MPI_Init( argc, argv ) ;
>    rank = MPI::COMM_WORLD.Get_rank( );
>    nproc = MPI::COMM_WORLD.Get_size( );
> 
> 
>    inbuf = (int **)new int* [ nproc ] ;
>    for( i = 0 ; i < nproc ; i++ ) {
>         inbuf[ i ] = new int[ DATA_SIZE ] ;
>    }
>    if( rank == 0 ) {
>       for( i = 0 ; i < COUNT ; i++ ) {
>         for( j = 1 ; j < nproc ; j++ ) {
>             MPI::COMM_WORLD.Isend( buf, DATA_SIZE,
> MPI::INT, j, 999 ) ;
>             MPI::COMM_WORLD.Recv( inbuf[ j ],
> DATA_SIZE, MPI::INT, j, 999 ) ;
>         }
>       }
>       printf( "MASTER END..\n" ) ;
>    } else {
>       for( i = 0 ; i < COUNT ; i++ ) {
>         for( j = 1 ; j < nproc ; j++ ) {
>             MPI::COMM_WORLD.Isend( buf, DATA_SIZE,
> MPI::INT, j, 999 ) ;
>             MPI::COMM_WORLD.Recv( inbuf[ j ],
> DATA_SIZE, MPI::INT, j, 999 ) ;
>         }
>       }
>       printf( "SLAGE %d END..\n", rank ) ;
>    }
>    MPI::Finalize() ;
> }
> 
> mpicxx main.cc
> mpiexec -n 2 a.out
> INTERNAL ERROR: Invalid error class (66) encountered
> while returning from
> MPI_Recv.  Please file a bug report.  No error stack
> is available.
> [cli_0]: aborting job:
> Fatal error in MPI_Recv: Error message texts are not
> available
> 
> 
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around 
> http://mail.yahoo.com 
> 
>