On Sep 22, 2010, at 1:53 PM, Gabriele Fatigati wrote:
> Thanks Jeff,
>
> and.. what about RDMA? It works only with point-to-point or also with
> collectives?
When collectives use the point-to-point sends (e.g., they effectively invoke
MPI_SEND as part of MPI_BCAST, for example), that will do a
Thanks Jeff,
and.. what about RDMA? It works only with point-to-point or also with
collectives?
2010/9/22 Jeff Squyres
> On Sep 22, 2010, at 3:46 AM, Gabriele Fatigati wrote:
>
> > i'm tuning collectives of OpenMPI 1.4.2 with OTPO. I have a little
> question about BTL. This layer is involves ju
On Sep 22, 2010, at 3:46 AM, Gabriele Fatigati wrote:
> i'm tuning collectives of OpenMPI 1.4.2 with OTPO. I have a little question
> about BTL. This layer is involves just in point-to-point communication or
> also in collectives routines?
>
> Because i've noted that changing some blt parameter
