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Subject: Re: [OMPI users] v1.3: mca_common_sm_mmap_init error
From: Prentice Bisbal (prentice_at_[hidden])
Date: 2009-02-03 13:15:27


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