Hello Brice Thanks for your reply.
I forgot to mention that my machine is a windows one and not Linux. I did download the new version of hwloc. Could you brief me the steps for installing it? Are the steps similar to this? cd $HWLOC ./configure --prefix=<where to install hwloc> make -j<N> install Thanks Dwaipayan From: Dwaipayan Sarkar Sent: August-23-21 6:13 PM To: hwloc-users@lists.open-mpi.org; Brice Goglin <brice.gog...@inria.fr> Subject: RE: [OMPI users] hwloc error Hello Brice Thanks for your reply. I forgot to mention that my machine is a windows one and not Linux. I did download the new version of hwloc. Could you brief me the steps for installing it? Are the steps similar to this? cd $HWLOC ./configure --prefix=<where to install hwloc> make -j<N> install Thanks Dwaipayan From: users <users-boun...@lists.open-mpi.org<mailto:users-boun...@lists.open-mpi.org>> On Behalf Of Brice Goglin via users Sent: August-23-21 5:32 PM To: us...@lists.open-mpi.org<mailto:us...@lists.open-mpi.org> Cc: Brice Goglin <brice.gog...@inria.fr<mailto:brice.gog...@inria.fr>> Subject: Re: [OMPI users] hwloc error Hello Dwaipayan You seem to be running a very old hwloc (maybe embedded inside an old Open MPI release?). Can you install a more recent hwloc from https://www.open-mpi.org/projects/hwloc/, build it, and run its "lstopo" to check whether the error remains? If so, could you open an issue on the hwloc github at https://github.com/open-mpi/hwloc/issues/new? Your error looks strange. We've seen issue with such "intersection" errors in the past because the BIOS or ACPI was reporting invalid cache or NUMA affinity with respect to CPU packages. But intersecting packages is really unexpected. Among what's requested in the issue template, the important information that we'll need is the tarball generated by hwloc-gather-topology, it will allow us to check that Linux is indeed reporting invalid socket information. By the way, this mailing list is for Open MPI, the hwloc mailing list is hwloc-users@lists.open-mpi.org<mailto:hwloc-users@lists.open-mpi.org>. Please use that list if you want to discuss by email instead of in a github issue. Thanks Brice Le 23/08/2021 à 19:36, Dwaipayan Sarkar via users a écrit : Hello I am Dwaipayan, a PhD graduate student at the Western University Canada. Recently, I have been facing issues while using the CFD software package ANSYS Fluent in my local machine which have two Xeon processors with 12 cores each. Whenever I am trying to run a simulation in parallel, it gives me this warning [Text Description automatically generated with low confidence] And then when I run the simulation it abruptly stops giving me a segmentation fault [cid:image002.png@01D7984B.7BFC4B20] Can you help me fix this issue, please? I can provide with you more information of the local desktop machine. Thanks Dwaipayan
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