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Subject: Re: [OMPI devel] new btl
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2011-06-16 09:04:09

On Jun 16, 2011, at 3:47 AM, Peter Kjellström wrote:

>> I should say that if anyone is contemplating writing a new BTL, I'm happy
>> to get on the phone / webex with you for an intro to the OMPI code base,
>> point you in the right direction, etc. Ping me on/off list and we can
>> setup a time.
> I guess there's also the possibility to write an mtl (like psm), or is this discouraged?

Not discouraged at all.

MTLs simply have a different model than BTLs.

In short, MTLs are for networks that have matching semantics built-in (e.g., MX, portals, PSM, tports, ...etc.). BTLs are for everything else (sockets, shared memory, verbs, ...etc.).

Jeff Squyres
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