Good morning, I've compiled a hello world MPI code and when I run it, I get some messages I'm not familiar with. The first one is,
-------------------------------------------------------------------------- WARNING: Linux kernel CMA support was requested via the btl_vader_single_copy_mechanism MCA variable, but CMA support is not available due to restrictive ptrace settings. The vader shared memory BTL will fall back on another single-copy mechanism if one is available. This may result in lower performance. Local host: laytonjb-desktop -------------------------------------------------------------------------- Then the code runs fine but after the code stops I get the following: [laytonjb-desktop:09116] 3 more processes have sent help message help-btl-vader.txt / cma-permission-denied [laytonjb-desktop:09116] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages I'm just running this code on my desktop. The compiler is PGI 19.10 and I'm using their 3.1.3 build of Open MPI. TIA, Jeff
