[mpich-discuss] Faster MPI_Attr_get?

[Jed Brown]

Yes, well, presumably the implementation is the same. We use the old name
in PETSc because we are somehow obliged to work on systems that don't have
an MPI-2 implementation.
On May 11, 2012 1:32 PM, "Jeff Hammond" <jhammond at alcf.anl.gov> wrote:

> MPI_Attr_get "is deprecated and is supersded by MPI_COMM_GET_ATTRin
> MPI-2.0," according to the MPI 2.2 standard page 463.  Hence, Jed's
> question should be requeued with s/MPI_Attr_get/MPI_Comm_get_attr/g".
>
> Jeff
>
> On Fri, May 11, 2012 at 1:24 PM, Jeff Squyres <jsquyres at cisco.com> wrote:
> > Just curious -- what's your use case for this?
> >
> > I think the prevailing assumption in the forum was that attributes
> weren't used much, and attribute set/get performance definitely didn't
> matter.
> >
> >
> > On May 11, 2012, at 2:17 PM, Jed Brown wrote:
> >
> >> Can you make this fast, like ~100 clocks for the common case?
> >>
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> > Jeff Squyres
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> --
> Jeff Hammond
> Argonne Leadership Computing Facility
> University of Chicago Computation Institute
> jhammond at alcf.anl.gov / (630) 252-5381
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