[OMPI devel] 1.10.3rc1 available for test

Hi folks We are prepping for release of 1.10.3, so please test the release candidate: https://www.open-mpi.org/software/ompi/v1.10/ Changes include: 1.10.3 -- - Minor manpage cleanups - Implement atomic support in OSHMEM/UCX - Fix support of

Re: [OMPI devel] IP address to verb interface mapping

Thank you very much, Gilles. That is exactly the information I was looking for. Best regards Durga We learn from history that we never learn from history. On Fri, Apr 8, 2016 at 12:52 AM, Gilles Gouaillardet wrote: > At init time, each task invoke btl_openib_component_init() which invokes > bt

Re: [OMPI devel] IP address to verb interface mapping

At init time, each task invoke btl_openib_component_init() which invokes btl_openib_modex_send() basically, it collects infiniband info (port, subnet, lid, ...) and "push" them to orted via the modex mechanism. When a communication is created, the remote information is retrieved via the modex

Re: [OMPI devel] IP address to verb interface mapping

Hi Gilles Thanks for responding quickly; however, I am afraid I did not explain my question clearly enough; my apologies. What I am trying to understand is this: My cluster has (say) 7 nodes. I use IP-over-Ethernet for Orted (for job launch and control traffic); this is not used for MPI messagin

Re: [OMPI devel] IP address to verb interface mapping

Hi, the hostnames (or their IPs) are only used to ssh orted. if you use only the tcp btl : TCP *MPI* communications (vs OOB management communications) are handled by btl/tcp by default, all usable interfaces are used, then messages are split (iirc, by ob1 pml) and then "fragments" are sent