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Subject: Re: [OMPI users] MPI_ALLREDUCE bug with 1.5.2rc3r24441
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2011-03-03 12:59:07


I am unable to reproduce your problem with the 1.5.2rc3 tarball...?

Does your compiler support INTEGER8? Can you send the data requested here:

    http://www.open-mpi.org/community/help/

On Mar 1, 2011, at 4:16 PM, Harald Anlauf wrote:

> Hi,
>
> there appears to be a regression in revision 1.5.2rc3r24441.
> The attached program crashes even with 1 PE with:
>
> Default real, digits: 4 24
> Real kind, digits: 8 53
> Integer kind, bits: 8 64
> Default Integer : 4 32
> Sum[real]: 1.0000000 2.0000000 3.0000000
> Sum[real(8)]: 1.0000000000000000 2.0000000000000000
> 3.0000000000000000
> Sum[integer(4)]: 1 2 3
> [proton:24826] *** An error occurred in MPI_Allreduce: the reduction
> operation MPI_SUM is not defined on the MPI_INTEGER8 datatype
>
>
> On the other hand,
>
> % ompi_info --arch
> Configured architecture: i686-pc-linux-gnu
> % ompi_info --all |grep 'integer[48]'
> Fort have integer4: yes
> Fort have integer8: yes
> Fort integer4 size: 4
> Fort integer8 size: 8
> Fort integer4 align: 4
> Fort integer8 align: 8
>
> There are no problems with 1.4.x and earlier revisions.
> <mpiallreducetest.f90>_______________________________________________
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-- 
Jeff Squyres
jsquyres_at_[hidden]
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