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
