[mvapich-discuss] Errors in BSBR when running xCbtest and xFbest of the BLACS

[Krishna Kandalla]

Hi Claudio,

    Thanks for reporting this issue. Could you please try setting the
following env. variable: MV2_USE_OLD_BCAST=1.
Please let us know if this helps your case. In the meantime, we will
continue investigating this issue.

    We had resolved an issue with Scalapack in our 1.9 release. However,
this seems to be an unrelated problem.

Thanks,
Krishna

On Tue, May 14, 2013 at 8:46 PM, Margulis, Claudio J <
claudio-margulis at uiowa.edu> wrote:

> To be more precise I compiled mvapich2-1.9 with gcc/gfortrtan 4.5.1 and I
> also compiled a second version with gcc/gfortran 4.7.0.  In both cases I
> got the same errors when running the test programs for the BLACS.
> ________________________________________
> From: mvapich-discuss-bounces at cse.ohio-state.edu [
> mvapich-discuss-bounces at cse.ohio-state.edu] on behalf of Claudio J.
> Margulis [claudio-margulis at uiowa.edu]
> Sent: Tuesday, May 14, 2013 5:11 PM
> To: mvapich-discuss at cse.ohio-state.edu
> Subject: [mvapich-discuss] Errors in BSBR when running xCbtest and xFbest
> of    the BLACS
>
> Hi, I was trying to use mvapich2-1.9 to compile an application that uses
> scalapack and the BLACS. This is for the latest version of BLACS which
> comes bundled with scalapack-2.0.2
> I compiled mvapich2-1.9 against gcc/gfortran versions 4.5.1 and 4.7.0
> successfully. The I compiled scalapack and BLACS successfully as well
> against mvapich2.
> When running the BLACS tests xCbtest and xFbtests I get errors for the
> BSBR sections. All other sections pass the tests.
>
> I did a quick search and found that my errors are identical to those
> reported here:
> http://fpmd.ucdavis.edu/qbox-list/viewtopic.php?p=290
>
> I think I also downloaded the latest trunk version and performed the
> same compilations and tests getting the same errors for the BLACS. Can
> anyone shed light? No errors on compilation.
>
> versions of BLACS compiled with openmpi and the same gcc compilers do
> not have the same problem.
>
> Thanks
> Claudio
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