Re: [Boost-mpi] No arg init

Subject: Re: [Boost-mpi] No arg init
From: Hal Finkel (hfinkel_at_[hidden])
Date: 2012-11-29 13:04:07

----- Original Message -----
> From: "Matthias Troyer" <troyer_at_[hidden]>
> To: "Discussion of Boost.MPI development" <boost-mpi_at_[hidden]>
> Sent: Thursday, November 29, 2012 10:49:18 AM
> Subject: Re: [Boost-mpi] No arg init
> 
> 
> On Nov 29, 2012, at 5:23 PM, Jeremiah Willcock <jewillco_at_[hidden]>
> wrote:
> > 
> > Another issue with MPI versions is that Boost.MPI currently uses
> > functions such as MPI_Address that have been removed in MPI 3.0.
> >  Is that something that should be addressed in the future?  I
> > think the replacements for some of them did not exist before MPI
> > 2.0.
> 
> A valid point - we will have to provide two implementations depending
> on which version of MPI is present. Is there any standardized macro
> that one an check to determine the MPI version at compile time?

There is MPI_VERSION and MPI_SUBVERSION.

Regarding support for older MPI versions; this is possible but will require some infrastructure. It seems reasonable to work up some testing infrastructure based on some older versions of MPICH, OpenMPI, etc. so that we can make sure not to break things.

 -Hal

> 
> Matthias
> 
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-- 
Hal Finkel
Postdoctoral Appointee
Leadership Computing Facility
Argonne National Laboratory