Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-14 Thread Don Kerr
Jeff Squyres wrote: On Nov 9, 2007, at 1:24 PM, Don Kerr wrote: both, I was thinking of listing what I think are multi-rail requirements but wanted to understand what the current state of things are I believe the OF portion of the FAQ describes what we do in the v1.2 series (ri

Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-14 Thread Gleb Natapov
Sorry I missed a mail with the question. On Mon, Nov 12, 2007 at 06:03:07AM -0500, Jeff Squyres wrote: > On Nov 9, 2007, at 1:24 PM, Don Kerr wrote: > > > both, I was thinking of listing what I think are multi-rail > > requirements > > but wanted to understand what the current state of things a

Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-13 Thread Jeff Squyres
On Nov 9, 2007, at 1:24 PM, Don Kerr wrote: both, I was thinking of listing what I think are multi-rail requirements but wanted to understand what the current state of things are I believe the OF portion of the FAQ describes what we do in the v1.2 series (right Gleb?); I honestly don't rem

Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-09 Thread Don Kerr
both, I was thinking of listing what I think are multi-rail requirements but wanted to understand what the current state of things are Jeff Squyres wrote: Don -- Are you asking what *does* it do, or what *should* a BTL do? On Nov 9, 2007, at 1:09 PM, Don Kerr wrote: Gleb, Another quest

Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-09 Thread Jeff Squyres
Don -- Are you asking what *does* it do, or what *should* a BTL do? On Nov 9, 2007, at 1:09 PM, Don Kerr wrote: 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

Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-09 Thread Don Kerr
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:

Re: [OMPI devel] Multi-Rail and Open IB BTL

2007-11-01 Thread Gleb Natapov
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 i