On Thu, Feb 19, 2015 at 12:16:49PM -0500, Eric Chamberland wrote: > > On 02/19/2015 11:56 AM, Nathan Hjelm wrote: > > > >If you have yama installed you can try: > > Nope, I do not have it installed... is it absolutely necessary? (and would > it change something when it fails when I am root?) > > Other question: In addition to "--with-cma" configure flag, do we have to > pass any options to "mpicc" when compiling/linking an mpi application to use > cma?
No. CMA should work out of the box. You appear to have a setup I haven't yet tested. It doesn't have yama nor does it have the PR_SET_PTRACER prctl. Its quite possible there are no restriction on ptrace in this setup. Can you try changing the following line at opal/mca/btl/vader/btl_vader_component.c:370 from: bool cma_happy = false; to bool cma_happy = true; and let me know if that works. If it does I will update vader to allow CMA in this configuration. -Nathan
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