By peers I mean the number of MPI processes on the same host. So if
you run with 4 processes on a single host, OMPI sets up shared memory
for those 4 processes during MPI_INIT, regardless of whether you call
MPI send/receive functions or not.
On Feb 3, 2009, at 1:15 PM, Prentice Bisbal wrote:
Jeff Squyres wrote:
On Feb 2, 2009, at 4:48 PM, Prentice Bisbal wrote:
No. I was running just a simple "Hello, world" program to test
v1.3 when
these errors occured. And as soon as I reverted to 1.2.8, the errors
disappeared.
FWIW, OMPI allocates shared memory based on the number of peers on
the
host. This allocation is during MPI_INIT, not during the first
MPI_SEND/MPI_RECV call. So even if you're running "hello world", you
could still be running out of shared memory space.
Thanks for the info. Can you define peers for me?
--
Prentice
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Jeff Squyres
Cisco Systems
