[MPICH] error 66, MPI 1.04p1

[chong tan]

Inst Recv supposed to force a sync ? 
tan


--- Rajeev Thakur <thakur at mcs.anl.gov> wrote:

> 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
> > 
> > 
> > 
> > 
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> > 
> 
> 


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