[MPICH] Windows distrib and Myrinet questions

Jayesh Krishna jayesh at mcs.anl.gov
Thu Jun 28 16:15:09 CDT 2007

 To use the shared memory channel on windows specify "-channel shm" as an
argument to the mpiexec command (Refer to the windows developer's guide
available at http://www-unix.mcs.anl.gov/mpi/mpich/ for more details).
 MPICH2 on windows currently supports sock (tcp socket), shm (shared memory)
& ssm (sockets & shared memory) channels. Currently support for Myrinet is
not available on windows. However on linux you can use the nemesis channel
in MPICH2 (configure with nemesis:mx) to use Myrinet.
 We are planning to port nemesis to Windows in future (tentative date should
be mid next year) and then Myrinet support would be available on windows.

-----Original Message-----
From: owner-mpich-discuss at mcs.anl.gov
[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Patrick Gräbel
Sent: Thursday, June 28, 2007 3:08 PM
To: mpich-discuss at mcs.anl.gov
Subject: [MPICH] Windows distrib and Myrinet questions


Does the MPICH2 Windows binary distribution (installer file) communicate via
sock only? Do I have to compile it by myself to get local communication use
shared memory?

What's the status on Myrinet support for MPICH2? Am I able to use it with
ordinary PCs if I buy a PICe Myrinet NIC, suitable cables and switches? Is
it that simple?


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