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Subject: Re: [OMPI devel] Simple program (103 lines) makes Open-1.4.3 hang
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2010-11-23 20:18:58


Ya, it sounds like we should fix this eager limit help text so that others aren't misled. We did say "attempt", but that's probably a bit too subtle.

Eugene - iirc: this is in the btl base (or some other central location) because it's shared between all btls.

Sent from my PDA. No type good.

On Nov 23, 2010, at 5:54 PM, "Eugene Loh" <eugene.loh_at_[hidden]> wrote:

> George Bosilca wrote:
>
>> Moreover, eager send can improve performance if and only if the matching receives are already posted on the peer. If not, the data will become unexpected, and there will be one additional memcpy.
>>
> I don't think the first sentence is strictly true. There is a cost associated with eager messages, but whether there is an overall improvement or not depends on lots of factors.
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