ensure $TMPDIR is set to a short path for OpenMPI v2.x#2311
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wpoely86 merged 7 commits intoeasybuilders:developfrom Sep 24, 2017
Merged
ensure $TMPDIR is set to a short path for OpenMPI v2.x#2311wpoely86 merged 7 commits intoeasybuilders:developfrom
wpoely86 merged 7 commits intoeasybuilders:developfrom
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wpoely86
reviewed
Sep 20, 2017
| ompi_ver = self.get_software_version(self.MPI_MODULE_NAME)[0] | ||
| if LooseVersion(ompi_ver) >= LooseVersion('2.0') and LooseVersion(ompi_ver) < LooseVersion('3.0'): | ||
| if len(self.orig_tmpdir) > 50: | ||
| env.setvar('TMPDIR', tempfile.mkdtemp(prefix='/tmp/')) |
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are you really sure that's a good idea? I would alert the user and let them handle it?
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I don't see why this wouldn't be a good idea, since this is exactly the recommendation OpenMPI makes (set $TMPDIR to /tmp).
At least we're setting it to a unique subdirectory in /tmp...
Are you worried about the hardcoding of /tmp?
wpoely86
previously approved these changes
Sep 22, 2017
…tatement to redefine $EBVERSIONOPENMPI
… by unloading previously loaded modules
wpoely86
approved these changes
Sep 24, 2017
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If
$TMPDIRis set to a long path, OpenMPI 2.x fails with an error like:See also https://www.open-mpi.org/faq/?category=osx#startup-errors-with-open-mpi-2.0.x.
This can occur on macOS, where the default temporary directory is something weird like
/var/folders/mg/q0_5yv791yz65cdnbglcqjvc0000gp/Trather than the more usual/tmp, but also in a job environment where$TMPDIRis set to a pre-created temporary directory that is specific to the job, e.g./local/305822[5092].master21.swalot.gent.vscfor an array job in Torque (which EasyBuild garbles intolocal/305822X5092X.master21.swalot.gent.vscto avoid using square brackets in the path name.To ensure that OpenMPI 2.x doesn't go down on its knees because of this when installing software with EasyBuild (usually because some tests are run using
mpirun), we can ensure that the$TMPDIRvalue is something short.