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Subject: Re: [OMPI devel] RFC: Add support to send/receive CUDA device memory directly
From: Shamis, Pavel (shamisp_at_[hidden])
Date: 2011-04-14 15:13:17

>> Actually I'm not sure that it is good idea to enable CUDA by default, since it disables zero-copy protocol, that is critical for good performance.
> That can easily be a run-time check during startup.

It could be fixed. My point was that in the existing code, it's compile time decision and not run time.