Re: [OMPI devel] openib btl code review

2008-05-15 Thread Jeff Squyres
I updated the patch on https://svn.open-mpi.org/trac/ompi/ticket/1285 per Gleb's suggestions (I made a few commits tonight with some of the non-receive-queues-patch-related fixes) and with some fixes for issues that Nysal found. Please see the most recent patch on the ticket. On May 15,

[OMPI devel] PML names OB1, DR and CM

2008-05-15 Thread Caciano Machado
Hi, What are the meanings of the PML names OB1, DR and CM? The paper "An evaluation of Open MPI's Matching Transport Layer on the Cray XT" says that they don't have any special meaning, but here ( http://www.open-mpi.org/papers/workshop-2006/wed_01_pt2pt.pdf) I saw that DR stands for "Data Reliabi

Re: [OMPI devel] openib btl code review

2008-05-15 Thread Jeff Squyres
On May 15, 2008, at 8:46 AM, Gleb Natapov wrote: Any other reviewers would be welcome... :-) I'll look at it next week too. Thanks. - some random style cleanup - fix a few minor memory leaks These two are the only ones that are really separate from the rest. - adapt _ini.c to accept th

Re: [OMPI devel] openib btl code review

2008-05-15 Thread Gleb Natapov
On Thu, May 15, 2008 at 08:14:29AM -0400, Jeff Squyres wrote: > Pasha tells me he'll be able to review the patch next week, so I'll > wait to commit until then. I added the patch to the ticket, just so > that it doesn't get lost. > > Any other reviewers would be welcome... :-) I'll look at i

Re: [OMPI devel] openib btl code review

2008-05-15 Thread Jeff Squyres
Pasha tells me he'll be able to review the patch next week, so I'll wait to commit until then. I added the patch to the ticket, just so that it doesn't get lost. Any other reviewers would be welcome... :-) On May 14, 2008, at 5:39 PM, Jeff Squyres wrote: https://svn.open-mpi.org/trac/ompi

Re: [OMPI devel] Shared Memory RDMA and eager messages

2008-05-15 Thread Torje Henriksen
Thanks, I will definitely do that. On May 15, 2008, at 1:33 PM, Jeff Squyres wrote: On May 15, 2008, at 7:28 AM, Torje Henriksen wrote: Always fast answers from this mailing list. We try. I wish we could be uniformly fast in answering all questions... :-\ Very nice indeed. I'll look at

Re: [OMPI devel] Shared Memory RDMA and eager messages

2008-05-15 Thread Jeff Squyres
On May 15, 2008, at 7:28 AM, Torje Henriksen wrote: Always fast answers from this mailing list. We try. I wish we could be uniformly fast in answering all questions... :-\ Very nice indeed. I'll look at the PML OB1 module next then. Be sure to check out a descriptions of some of the OB

Re: [OMPI devel] Shared Memory RDMA and eager messages

2008-05-15 Thread Torje Henriksen
Thanks Jeff. Always fast answers from this mailing list. Very nice indeed. I'll look at the PML OB1 module next then. Best regards, Torje On May 15, 2008, at 1:15 PM, Jeff Squyres wrote: On May 15, 2008, at 5:55 AM, Torje Henriksen wrote: 1. In the BTL SM component (both in "ompi_info

Re: [OMPI devel] Shared Memory RDMA and eager messages

2008-05-15 Thread Jeff Squyres
On May 15, 2008, at 5:55 AM, Torje Henriksen wrote: 1. In the BTL SM component (both in "ompi_info --param btl sm" and the source), there is mention of RDMA. Is RDMA used in ths component? Is any special hardware needed for using it? No and no. The SM BTL uses a copyout/copyin mechanism (copy

[OMPI devel] Shared Memory RDMA and eager messages

2008-05-15 Thread Torje Henriksen
Hi everyone, I have some quick questions. 1. In the BTL SM component (both in "ompi_info --param btl sm" and the source), there is mention of RDMA. Is RDMA used in ths component? Is any special hardware needed for using it? 2. As for eager vs non-eager messages. Is the only difference bet