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Subject: [OMPI devel] Bug in MPI.MINLOC with Java binding
From: Saliya Ekanayake (esaliya_at_[hidden])
Date: 2013-11-11 15:35:23


I've been using nightly tarball openmpi-1.9a1r28919 with Java binding and
it had a bug in its MINLOC implementation ( Essentially, the
following line,

out_array [outdisp + 1] = in_array [*outdisp* + 1] ;

should be changed to

out_array [outdisp + 1] = in_array [*indisp* + 1] ;

The same should be done for MAXLOC ( implementation as well. I
tested with the change and both MINLOC and MAXLOC worked as expected

However, these files are no longer available in the latest trunk and it
seems the API for collective operations have changed as well. Still MINLOC
(and MAXLOC) does not work as expected. I've attached a sample code to
reproduce the issue and an output from it (for MINLOC).

I am running on 64bit Ubuntu 12.04.

Any suggestions?

Thank you in advance,

Saliya Ekanayake esaliya_at_[hidden]