Thats was almost 15 years ago :) from the time we used RCS - and didn't maintain commit messages.
I think its probably more because mpiuni doesn't support more than 1 communicator and attributes are stashed in a global structure [not per communicator]. Perhaps mpiuni needs fixing.. Satish On Mon, 16 Jul 2012, Jed Brown wrote: > Satish, what was the rationale behind this commit? I can't think of an > excuse for making them be literally the same. > > On Mon, Jul 16, 2012 at 11:11 AM, Satish Balay <balay at mcs.anl.gov> wrote: > > > Actually for np=1 MPI_COMM_SELF==MPI_COMM_WORLD. > > > > mpi.h was changed to reflect this - but mpif.h was not. > > > > Satish > > > > ---------- > > balay at petsc:~/Petsc-historic/src/sys/src/mpiuni $ rcsdiff -r1.52 -r1.53 > > mpi.h > > =================================================================== > > RCS file: RCS/mpi.h,v > > retrieving revision 1.52 > > retrieving revision 1.53 > > diff -r1.52 -r1.53 > > 1c1 > > < /* $Id: mpi.h,v 1.52 1997/07/28 21:41:02 balay Exp $ */ > > --- > > > /* $Id: mpi.h,v 1.53 1997/08/21 01:06:19 balay Exp $ */ > > 22c22 > > < #define MPI_COMM_SELF 2 > > --- > > > #define MPI_COMM_SELF MPI_COMM_WORLD > > 427c427 > > < (MPIUNI_TMP = (void *) (comm), \ > > --- > > > (*(newcomm) = (comm), \ > > 429d428 > > < MPIUNI_TMP = (void *) (newcomm), \ > > >
