Hi Gilles, "loki" is a machine in our new lab and I tried "--slot-list 0:0-5,1:0-5" the first time, so that I don't know if it worked before. I can ask our admin on Monday, if numactl-devel is installed.
Kind regards Siegmar On 05/07/16 12:10, Gilles Gouaillardet wrote:
Siegmar, did you upgrade your os recently ? or change hyper threading settings ? this error message typically appears when the numactl-devel rpm is not installed (numactl-devel on redhat, the package name might differ on sles) if not, would you mind retesting frI'm scratch a previous tarball that used to work without any warning ? Cheers, Gilles On Saturday, May 7, 2016, Siegmar Gross <siegmar.gr...@informatik.hs-fulda.de <mailto:siegmar.gr...@informatik.hs-fulda.de>> wrote: Hi, yesterday I installed openmpi-dev-4010-g6c9d65c on my "SUSE Linux Enterprise Server 12 (x86_64)" with Sun C 5.13 and gcc-5.3.0. Unfortunately I get the following warning message. loki hello_1 128 ompi_info | grep -e "OPAL repo revision" -e "C compiler absolute" OPAL repo revision: dev-4010-g6c9d65c C compiler absolute: /opt/solstudio12.4/bin/cc loki hello_1 129 mpiexec -np 3 --host loki --slot-list 0:0-5,1:0-5 hello_1_mpi -------------------------------------------------------------------------- WARNING: a request was made to bind a process. While the system supports binding the process itself, at least one node does NOT support binding memory to the process location. Node: loki Open MPI uses the "hwloc" library to perform process and memory binding. This error message means that hwloc has indicated that processor binding support is not available on this machine. On OS X, processor and memory binding is not available at all (i.e., the OS does not expose this functionality). On Linux, lack of the functionality can mean that you are on a platform where processor and memory affinity is not supported in Linux itself, or that hwloc was built without NUMA and/or processor affinity support. When building hwloc (which, depending on your Open MPI installation, may be embedded in Open MPI itself), it is important to have the libnuma header and library files available. Different linux distributions package these files under different names; look for packages with the word "numa" in them. You may also need a developer version of the package (e.g., with "dev" or "devel" in the name) to obtain the relevant header files. If you are getting this message on a non-OS X, non-Linux platform, then hwloc does not support processor / memory affinity on this platform. If the OS/platform does actually support processor / memory affinity, then you should contact the hwloc maintainers: https://github.com/open-mpi/hwloc. This is a warning only; your job will continue, though performance may be degraded. -------------------------------------------------------------------------- Process 0 of 3 running on loki Process 2 of 3 running on loki Process 1 of 3 running on loki Now 2 slave tasks are sending greetings. Greetings from task 1: message type: 3 ... loki openmpi-dev-4010-g6c9d65c-Linux.x86_64.64_cc 122 ls -l /usr/lib64/*numa* -rwxr-xr-x 1 root root 48256 Nov 24 16:29 /usr/lib64/libnuma.so.1 loki openmpi-dev-4010-g6c9d65c-Linux.x86_64.64_cc 123 grep numa log.configure.Linux.x86_64.64_cc checking numaif.h usability... no checking numaif.h presence... yes configure: WARNING: numaif.h: present but cannot be compiled configure: WARNING: numaif.h: check for missing prerequisite headers? configure: WARNING: numaif.h: see the Autoconf documentation configure: WARNING: numaif.h: section "Present But Cannot Be Compiled" configure: WARNING: numaif.h: proceeding with the compiler's result checking for numaif.h... no loki openmpi-dev-4010-g6c9d65c-Linux.x86_64.64_cc 124 I didn't get the warning for openmpi-v1.10.2-176-g9d45e07 and openmpi-v2.x-dev-1404-g74d8ea0 as you can see in my previous emails, although I have the same messages in log.configure.*. I would be grateful, if somebody can fix the problem if it is a problem and not an intended message. Thank you very much for any help in advance. Kind regards Siegmar _______________________________________________ users mailing list us...@open-mpi.org Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2016/05/29131.php
