From: Joachim Worringen Newsgroups: comp.parallel.mpi Subject: Re: Building a portable library? Date: Thu, 27 May 1999 12:57:40 +0200 Organization: Chair for Operating Systems, RWTH Aachen Message-Id: <374D2524.3CD50587@lfbs.rwth-aachen.de> References: <374D021B.4B338B09@etnus.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Xref: ukc comp.parallel.mpi:5132 James Cownie wrote: > > John Bircsak wrote: > > > > Where might I find information pertaining to building a library > > based on MPI, that is portable? By this I mean that I would be > > able to use the same library, without re-compilation, at several > > different sites, each with a potentially different MPI implementation. > > Unless the MPI implementation is the same this is unlikely to work. > > MPI is a source level standard, not a binary one. (For instance > the standard nowhere says what the type MPI_Communicator > *is*, or what the value of MPI_COMM_WORLD *is*, > merely that such types and objects exist with these names). That's correct. However, it should be no problem to build a MPI-based library which is portable at source-code level. Joachim -- | _ | Joachim Worringen |_|_`__ | Lehrstuhl fuer Betriebssysteme, RWTH Aachen | |__) | http://www.lfbs.rwth-aachen.de/~joachim |__)S | joachim@lfbs.rwth-aachen.de