Thanks.
Moving one step foreword, server 1, my compile server, has a number
of commercial C++ compilers (Pathscale and Intel). I'd like to
compile different version of the binary with each compiler and then
run these binaries on the Server 2 g++-compiled OMPI environments.
The FAQ says "not really, you can't do that": http://www.open-mpi.org/
faq/?category=sysadmin#multiple-installs, but I thought it might be
time for an update with some hands-on experience?
On Nov 6, 2008, at 9:02 AM, Jeff Squyres wrote:
As long as you compiled OMPI with support for OFED, yes. You will
need to have OFED installed on server 1 (even if you have no
OpenFabrics-capable devices) to build OMPI's OpenFabrics support.
FWIW, I do this kind of thing all the time: build OMPI on one
machine and NFS export it to all the machines in my cluster, some
of which are semi-heterogeneous (e.g., some have OFED installed,
some do not, etc.).
On Nov 6, 2008, at 1:00 AM, Robert Kubrick wrote:
According to this FAQ, one should be able to compile on a computer
and then run the OMPI program on different hardware, as far as the
c++ compiler and OMPI versions are the same: http://www.open-
mpi.org/faq/?category=sysadmin#new-openmpi-version
I have the following situation:
Server 1
Fabric: Ethernet
Compiler: g++ 4.2
OpenMPI: 1.2.8
Server 2
Fabric: InfiniBand/Ethernet
Compiler: g++ 4.2
OpenMPI: 1.2.8
Can I compile my program on Server 1 and then run it on Server 2
on IB (mpirun --mca btl openib,self...) ?
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Jeff Squyres
Cisco Systems
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