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Subject: Re: [OMPI devel] Multi-Rail and Open IB BTL
From: Don Kerr (Don.Kerr_at_[hidden])
Date: 2007-11-09 13:09:06


Gleb,

Another question. What about the case of one node with 2 ports and one
node with one port. Does the open ib btl allow the side with 2 ports to
establish two endpoints to the single remote port?

-DON

Gleb Natapov wrote:

>On Thu, Nov 01, 2007 at 11:15:21AM -0400, Don Kerr wrote:
>
>
>>How would the openib btl handle the following scenario:
>>Two nodes, each with two ports, all ports are on the same subnet and switch.
>>
>>Would striping occur over 4 connections or 2?
>>
>>
>Only two connections will be created.
>
>
>
>>If 2 is it equal distribution or are both local ports connected to the
>>same remote port?
>>
>>
>>
>Equal distribution.
>
>--
> Gleb.
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