the GNI provider isn’t supposed on Titan - OS is too old.
-- Howard Pritchard B Schedule HPC-ENV Office 9, 2nd floor Research Park TA-03, Building 4200, Room 03U Los Alamos National Laboratory On 5/3/18, 11:21 AM, "Hefty, Sean" <[email protected]> wrote: >Copying ofiwg, Howard, and Jim. > > >> Apologies if this has been asked before. >> >> I am trying to use the GNI provider for libfabric on Titan, the XK7 >> machine at ORNL. Is this possible/supported? >> >> More specifically, I need to be able to communicate between aprun >> instances (e.g. aprun ./writer and aprun ./reader are able to >> communicate with each other) so the sharing of credentials between the >> programs is necessary. I have been referring to the cray-tests repo as >> an example of how to use rdma credentials for Cray in Libfabric. I >> modified this code somewhat by replacing all DRC code with just >> setting the cookie manually, and had hoped that would work. >> Unfortunately, the library relies on GNI_GetPtag to set the ptag, and >> this API call does not seem to work on Titan. I can get the >> auth_keys_test to pass by adding a ptag field to the >> fi_gni_raw_auth_key struct along with appropriate language to handle >> that, but I was wondering if there was some inherently supported way >> to do that same thing without modifying libfabric. >> >> Other than credentials exchange/loading, i am wondering what I can >> expect in trying to use the GNI provider on a non-ARIES system. Has >> anyone done this successfully? >> >> Thanks, >> Philip _______________________________________________ ofiwg mailing list [email protected] http://lists.openfabrics.org/mailman/listinfo/ofiwg
