The proposed patch has several issues, all of them detailed on the ticket.
A correct patch as well as a broaden tester are provided.

  George.



On Tue, Aug 26, 2014 at 8:21 PM, Jeff Squyres (jsquyres) <jsquy...@cisco.com
> wrote:

> Good catch.
>
> I filed https://svn.open-mpi.org/trac/ompi/ticket/4876 with a patch for
> the fix; I want to get more eyeballs on it before I commit.
>
>
> On Aug 26, 2014, at 7:07 AM, Lisandro Dalcin <dalc...@gmail.com> wrote:
>
> > While I agree that the code below is rather useless, however I'm not
> > sure it should actually fail:
> >
> > $ cat comm_split_type.c
> > #include <assert.h>
> > #include <mpi.h>
> > int main(int argc, char *argv[])
> > {
> >  MPI_Comm comm;
> >  MPI_Init(&argc, &argv);
> >  MPI_Comm_split_type(MPI_COMM_SELF,MPI_UNDEFINED,0,MPI_INFO_NULL,&comm);
> >  assert(comm == MPI_COMM_NULL);
> >  MPI_Finalize();
> >  return 0;
> > }
> >
> > $ mpicc comm_split_type.c
> > $ ./a.out
> > [kw2060:9865] *** An error occurred in MPI_Comm_split_type
> > [kw2060:9865] *** reported by process [140735368986625,140071768424448]
> > [kw2060:9865] *** on communicator MPI_COMM_SELF
> > [kw2060:9865] *** MPI_ERR_ARG: invalid argument of some other kind
> > [kw2060:9865] *** MPI_ERRORS_ARE_FATAL (processes in this communicator
> > will now abort,
> > [kw2060:9865] ***    and potentially your MPI job)
> >
> > --
> > Lisandro Dalcin
> > ============
> > Research Scientist
> > Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
> > Numerical Porous Media Center (NumPor)
> > King Abdullah University of Science and Technology (KAUST)
> > http://numpor.kaust.edu.sa/
> >
> > 4700 King Abdullah University of Science and Technology
> > al-Khawarizmi Bldg (Bldg 1), Office # 4332
> > Thuwal 23955-6900, Kingdom of Saudi Arabia
> > http://www.kaust.edu.sa
> >
> > Office Phone: +966 12 808-0459
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> > Link to this post:
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>
>
> --
> Jeff Squyres
> jsquy...@cisco.com
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
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