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Subject: Re: [OMPI users] MPI_Allreduce on local machine
From: Gus Correa (gus_at_[hidden])
Date: 2010-07-28 11:55:17


Hi Jeff

I surely can send you the logs, but they're big.
Off the list perhaps?

Thanks,
Gus

Jeff Squyres wrote:
> On Jul 28, 2010, at 11:19 AM, Gus Correa wrote:
>
>>> Ompi_info --all lists its info regarding fortran right after C. In my
>
> Ummm.... right... I should know that. I wrote ompi_info, after all. :-) I ran "ompi_info -all | grep -i fortran" and didn't see the fortran info, and I forgot that I put that stuff in there. Oops! :-)
>
>>> case:
>>> Fort real size: 4
>>> Fort real4 size: 4
>>> Fort real8 size: 8
>>> Fort real16 size: 16
>>> Fort dbl prec size: 4
>
> That does seems weird.
>
>> No, dbl prec size 4 sounds weird, should be 8, I suppose,
>> same as real8, right?
>>
>> It doesn't make sense, but that's what I have (now that you told me
>> that "dbl" , not "double", is the string to search for):
>>
>> $ Fort dbl prec size: 4
>> Fort dbl cplx size: 4
>> Fort dbl prec align: 4
>> Fort dbl cplx align: 4
>>
>> Is this a bug in OpenMPI perhaps?
>
> Getting sizeof and alignment of Fortran variable types is very problematic. Can you send the stdout/stderr of configure and the config.log?
>
> http://www.open-mpi.org/community/help/
>