On Feb 3, 2020, at 10:03 AM, Bennet Fauber <ben...@umich.edu> wrote: > > Ah, ha! > > Yes, that seems to be it. Thanks.
Ok, good. I understand that UCX is the "preferred" mechanism for IB these days. > If I might, on a configure related note ask, whether, if we have > these installed with the CentOS 7.6 we are running > > $ yum list installed libevent\* > Loaded plugins: langpacks > Installed Packages > libevent.x86_64 2.0.21-4.el7 > @anaconda > libevent-devel.x86_64 2.0.21-4.el7 @os > > should be be able to use this? > > ./configure ... --with-libevent=external --with-hwloc=external > > My coworker reported that something was awry using that, and he's put instead > > ./configure ... --with-libevent=external --with-hwloc=/usr > > I believe that the problem was that if we did not specify /usr, then > srun and mpirun were unable to find the interfaces. But I also recall > from an earlier thread that is very much not recommended. I don't know offhand if the hwloc and lib event bundled in Centos 7 are sufficient. They probably are, but I don't know that for a fact. I'd be curious to know what the problem was if --with-hwloc=external didn't work (assuming that the Centos 7-bundled hwloc was the only one found in your PATH/LD_LIBRARY_PATH/compiler include+linker paths/etc.). -- Jeff Squyres jsquy...@cisco.com
