Hi David
Sorry to hear that OpenMPI is a troublemaker in your
Open Solaris machines.
Have you questioned the OpenMPI list about that?
I installed OpenMPI on Linux (Fedora, CentOS) without problems,
on clusters with Infiniband, Gigabit Ethernet, old Ethernet 100,
and on standalone machines, using Gnu, PGI, and Intel compilers.
In my experience it installs easily and works well on Linux.
Among other reasons, I recommended it to the person who
asked for help because he said his is a Linux cluster (Ubuntu).
We also have and use MPICH2 and MVAPICH2 here, though.
Gus Correa
David Mathog wrote:
Gus Correa <[email protected]> wrote
If you already set up passwordless ssh across the nodes
OpenMPI will probably get you up and running faster than MPICH2.
OpenMPI is very easy to install, say, with gcc, g++, and
gfortran (make sure you have them installed on your main machine,
use Ubuntu apt-get, if you don't have them).
Well on Linux maybe, but since OpenMPI has been soundly kicking my butt
trying to get it installed and working on a Solaris 5.8 Sparc system for
the last day, I can't let that slide as a general statement.
OpenMPI 1.4.1 needed a few minor code mods to build at all using gcc on
this system (it expects some defines that aren't present, this is with
the sunfreeware gcc versions), and those mods were just about counting
CPUs, which wasn't an issue in this case because it is a single CPU
system. These same issues were also reported by another fellow for 1.3.1
on a Solaris 8 system:
http://www.open-mpi.org/community/lists/users/2009/02/7994.php
The gcc version works so long as mpirun only sends jobs to itself.
Sadly, try to send ANYTHING to a remote machine (linux Intel, in case
that matters) and it treats one to:
mca_oob_tcp_msg_send_handler: writev failed: Bad file descriptor
This on a build with no warnings or errors. Definitely a problem on the
Solaris side, since any of the linux machines can initiate an mpirun to
another node, or all other nodes, that works with the example programs.
So with gcc, OpenMPI not too useful for the front end of an MPI cluster.
Today I'm trying again using Sun's Forte 7 tools, which requires a
fairly complex configure line:
./configure --with-sge --prefix=/opt/ompi141 CFLAGS="-xarch=v8plusa"
CXXFLAGS="-xarch=v8plusa" FFLAGS="-xarch=v8plusa"
FCFLAGS="-xarch=v8plusa" CC=/opt/SUNWspro/bin/cc
CXX=/opt/SUNWspro/bin/CC F77=/opt/SUNWspro/bin/f77
FC=/opt/SUNWspro/bin/f95 CCAS=/opt/SUNWspro/bin/cc
CCASFLAGS="-xarch=v8plusa" >configure_4.log 2>&1 &
Not sure yet if that is sufficient, as none of the preceding configure
variants resulted in a set of Makefiles which would actually run to
completion, and this one is still building.
Regards,
David Mathog
[email protected]
Manager, Sequence Analysis Facility, Biology Division, Caltech
_______________________________________________
Beowulf mailing list, [email protected] sponsored by Penguin Computing
To change your subscription (digest mode or unsubscribe) visit
http://www.beowulf.org/mailman/listinfo/beowulf
_______________________________________________
Beowulf mailing list, [email protected] sponsored by Penguin Computing
To change your subscription (digest mode or unsubscribe) visit
http://www.beowulf.org/mailman/listinfo/beowulf
