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From: john casu (john_at_[hidden])
Date: 2006-04-09 04:33:26


On Sat, 2006-04-08 at 07:22 -0400, Jeff Squyres (jsquyres) wrote:
> John --
>
> I am unable to replicate your problem with Open MPI 1.0.2 with the
> following simple program:
>
> -----
> program ring_f77
> include 'mpif.h'
> integer n, rank, size, ierr
> real*8 data2(10), data(10)
>
> call mpi_init(ierr)
>
> call mpi_comm_rank(MPI_COMM_WORLD, rank, ierr)
> call mpi_comm_size(MPI_COMM_WORLD, size, ierr)
>
> n = 10
> call MPI_Allreduce( data, data2, n, MPI_DOUBLE_PRECISION,
> & MPI_SUM, MPI_COMM_WORLD, ierr )
>
> call mpi_finalize(ierr)
> end
> -----
>
> Can you replicate the problem with this small program?
>
.

no.. this works fine any way I build it.

ok, then. looks like an issue on my end. apologies.

-john.

>
> > -----Original Message-----
> > From: users-bounces_at_[hidden]
> > [mailto:users-bounces_at_[hidden]] On Behalf Of john casu
> > Sent: Thursday, April 06, 2006 6:07 PM
> > To: Open MPI Users
> > Subject: Re: [OMPI users] MPI_Allreduce error in 1.0.1 and 1.0.2rc1
> >
> > On Thu, 2006-04-06 at 15:48 -0400, George Bosilca wrote:
> > > The error state that your trying to use an invalid operation. MPI
> > > define which operation can be applied on which predefined
> > data-types.
> > > Do you know which operation is used there ? And which
> > predefined data-
> > > type ?
> > >
> >
> > please forgive for not including the relevant offending Fortran code,
> > which is as follows:
> >
> >
> > #include "mpif.h"
> > :
> > :
> > real*8 data2(10), data(10)
> > integer msg_comm
> > integer n, ierr
> > :
> > :
> > call MPI_Allreduce( data, data2, n, MPI_DOUBLE_PRECISION,
> > & MPI_SUM, msg_comm, ierr )
> >
> >
> > Further investigation shows that the error only seems to show
> > itself on
> > an x86_64 box, and the code works fine on an ia32 box.
> >
> > > Thanks,
> > > george.
> > >
> > > On Apr 6, 2006, at 2:41 PM, john casu wrote:
> > >
> > > > I'm trying to work with the sppm code form LLNL:
> > > >
> > http://www.llnl.gov/asci_benchmarks/asci/limited/ppm/asci_sppm.html
> > > >
> > > > I built openmpi and sppm on an 8-way shared memory Linux box.
> > > >
> > > > The error I get is:
> > > > [ty20:07732] *** An error occurred in MPI_Allreduce
> > > > [ty20:07732] *** on communicator MPI_COMM_WORLD
> > > > [ty20:07732] *** MPI_ERR_OP: invalid reduce operation
> > > > [ty20:07732] *** MPI_ERRORS_ARE_FATAL (goodbye)
> > > >
> > > >
> > > > it happens in both 1.0.1 and 1.0.2rc1
> > > >
> > > > thanks,
> > > >
> > > > john.
> > > >
> > > > _______________________________________________
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> > >
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