Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Nifty Tom Mitchell
On Tue, Jul 20, 2010 at 12:07:32PM -0400, Mark Hahn wrote: > > Hi all, > I'm interested in hearing about experiences with mixing compilers > between the application and MPI. that is, I would like to be able > to compile MPI (say, OpenMPI) with gcc, and expect it to work > correctly with apps comp

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Gus Correa
HI Mark Mark Hahn wrote: between the application and MPI. that is, I would like to be able to compile MPI (say, OpenMPI) with gcc, and expect it to work correctly with apps compiled with other compilers. I guess I'm reasoning by analogy to normal distro libs. I haven't built OpenMPI this

Re: [Beowulf] dollars-per-teraflop : any lists like the Top500?

2010-07-20 Thread Nifty Tom Mitchell
On Wed, Jun 30, 2010 at 03:11:54PM +, Bill Rankin wrote: > > > I think the money part will be difficult to get (it is like a > > politically > > incorrect question). > > Joe addressed this pretty well. For the large systems, it's almost always > under NDA. > And then there is always the i

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Mark Hahn
we do exactly what you describe: compile OpenMPI with the gcc suite and then use it with gcc, intel and open64 compilers. nice. This works out-of-the-box, almost. The problem is the f90 module mpi.mod. This is (usually) a binary file and specific to the f90 compiler that was used to compile Op

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Mark Hahn
between the application and MPI. that is, I would like to be able to compile MPI (say, OpenMPI) with gcc, and expect it to work correctly with apps compiled with other compilers. I guess I'm reasoning by analogy to normal distro libs. I haven't built OpenMPI this way, but you may try to li

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Martin Siegert
On Tue, Jul 20, 2010 at 02:25:32PM -0400, Mark Hahn wrote: >> we do exactly what you describe: compile OpenMPI with the gcc suite >> and then use it with gcc, intel and open64 compilers. > > nice. > >> This works out-of-the-box, almost. >> The problem is the f90 module mpi.mod. This is (usually) a

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Prentice Bisbal
Mark Hahn wrote: > Hi all, > I'm interested in hearing about experiences with mixing compilers > between the application and MPI. that is, I would like to be able > to compile MPI (say, OpenMPI) with gcc, and expect it to work correctly > with apps compiled with other compilers. I guess I'm reaso

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Gus Correa
HI Mark Mark Hahn wrote: Hi all, I'm interested in hearing about experiences with mixing compilers between the application and MPI. that is, I would like to be able to compile MPI (say, OpenMPI) with gcc, and expect it to work correctly with apps compiled with other compilers. I guess I'm rea

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Martin Siegert
Hi Mark, we do exactly what you describe: compile OpenMPI with the gcc suite and then use it with gcc, intel and open64 compilers. This works out-of-the-box, almost. The problem is the f90 module mpi.mod. This is (usually) a binary file and specific to the f90 compiler that was used to compile Op

Re: [Beowulf] compilers vs mpi?

2010-07-20 Thread Greg Lindahl
On Tue, Jul 20, 2010 at 12:07:32PM -0400, Mark Hahn wrote: > I'm interested in hearing about experiences with mixing compilers > between the application and MPI. that is, I would like to be able > to compile MPI (say, OpenMPI) with gcc, and expect it to work correctly > with apps compiled with

[Beowulf] compilers vs mpi?

2010-07-20 Thread Mark Hahn
Hi all, I'm interested in hearing about experiences with mixing compilers between the application and MPI. that is, I would like to be able to compile MPI (say, OpenMPI) with gcc, and expect it to work correctly with apps compiled with other compilers. I guess I'm reasoning by analogy to norma