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Subject: Re: [OMPI users] sending/receiving large buffers
From: Vincent Loechner (loechner_at_[hidden])
Date: 2009-11-09 05:45:29


Martin,

> I expect problems with sizes larger than 2^31-1, but these array sizes
> are still much smaller.
No, they are bigger, you allocate two arrays of 320 Mdouble :
2 * 320M * 8 = 5GB.

Are your processes limited to 4GB virtual memory ?

--Vincent