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Subject: Re: [OMPI users] Debugging memory use of Open MPI
From: Shaun Jackman (sjackman_at_[hidden])
Date: 2009-04-16 16:30:53


Eugene Loh wrote:
...
> What's the rest? I said the shared-memory area is much smaller, but I
> was confused about which OMPI release I was using. So, the
> shared-memory area was 128 Mbyte and it was getting mapped in once for
> each process, and so it was counted doubly.

If there are eight processes running on one host, does each process
allocate one 128 Mbyte shared memory buffer and map in the other seven
128 Mbyte buffers allocated by the other processes?

Cheers,
Shaun