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Subject: [OMPI devel] MPI_Group_{incl|exc} with nranks=0 and ranks=NULL
From: Lisandro Dalcin (dalcinl_at_[hidden])
Date: 2009-10-21 17:43:35


Currently (trunk, just svn update'd), the following call fails
(because of the ranks=NULL pointer)

MPI_Group_{incl|excl}(group, 0, NULL, &newgroup)

BTW, MPI_Group_translate_ranks() has similar issues...

Provided that Open MPI accept the combination (int_array_size=0,
int_array_ptr=NULL) in other calls, I think it should also accept the
NULL's in the calls above... What do you think?

-- 
Lisandro Dalcín
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
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