Re: [OMPI devel] Open MPI collectives algorithm selection

2015-05-21 Thread George Bosilca
You are right, during the reading of the configuration file we are bailing out if a rule doesn't start with a zero-length. While the selection logic (where I was looking) doesn't have such a restriction (it automatically selects the first rule), I consider that forcing the communicator-based rules

[OMPI devel] RFC: how should Open MPI handle link-local addresses

2015-05-21 Thread Gilles Gouaillardet
Folks, this RFC is a follow-up of * issue 585 https://github.com/open-mpi/ompi/issues/585 * related PR 591 https://github.com/open-mpi/ompi/pull/591 As some of you might have already noticed, Open MPI fails if configure'd with --enable-ipv6 and ipv6 interfaces are found on the system. The r

Re: [OMPI devel] RFC: how should Open MPI handle link-local addresses

2015-05-21 Thread Ralph Castain
I can’t speak for the BTL, but the OOB has no need for link-local addresses > On May 21, 2015, at 1:24 AM, Gilles Gouaillardet wrote: > > Folks, > > this RFC is a follow-up of > * issue 585 https://github.com/open-mpi/ompi/issues/585 > * related PR 591 https://github.com/open-mpi/ompi/pull/591

Re: [OMPI devel] RFC: how should Open MPI handle link-local addresses

2015-05-21 Thread George Bosilca
As I indicated in the ticket, these are sometimes useful for identifying issues with the internals of the MPI stack. I'll go with 2, but having them by default in the tcp_exclude list. George. On Thu, May 21, 2015 at 10:28 AM, Ralph Castain wrote: > I can’t speak for the BTL, but the OOB has

Re: [OMPI devel] RFC: how should Open MPI handle link-local addresses

2015-05-21 Thread Ralph Castain
I can live with that - the OOB currently looks for loopback and ignores them if any other option is available. Easy enough to extend that logic to link-local. So I guess we should leave link-local addrs in the opal IF list, and let the modules deal with it > On May 21, 2015, at 8:08 AM, George