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| author | Adam J. Stewart <ajstewart426@gmail.com> | 2017-04-19 23:31:21 -0500 |
|---|---|---|
| committer | Todd Gamblin <tgamblin@llnl.gov> | 2017-04-19 21:31:21 -0700 |
| commit | 9bd6d2132242555816e49479f8010dccf7dca8bd (patch) | |
| tree | e3b8d154805364a897e12faffb63ea6a4f827959 | |
| parent | 186d1f4511c8aa3bc5ce661b1e883db10e20958a (diff) | |
| download | spack-9bd6d2132242555816e49479f8010dccf7dca8bd.tar.gz spack-9bd6d2132242555816e49479f8010dccf7dca8bd.tar.bz2 spack-9bd6d2132242555816e49479f8010dccf7dca8bd.tar.xz spack-9bd6d2132242555816e49479f8010dccf7dca8bd.zip | |
Add variant to mvapich2 to set size of rank bits (#3886)
| -rw-r--r-- | var/spack/repos/builtin/packages/mvapich2/package.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/mvapich2/package.py b/var/spack/repos/builtin/packages/mvapich2/package.py index e3f6e5f6a6..d952165ac1 100644 --- a/var/spack/repos/builtin/packages/mvapich2/package.py +++ b/var/spack/repos/builtin/packages/mvapich2/package.py @@ -58,6 +58,11 @@ class Mvapich2(Package): variant('threads', default='multiple', description='Control the level of thread support') + # 32 is needed when job size exceeds 32768 cores + variant('ch3_rank_bits', default=32, + description='Number of bits allocated to the rank field (16 or 32)' + ) + ########## # TODO : Process managers should be grouped into the same variant, # as soon as variant capabilities will be extended See @@ -262,6 +267,8 @@ class Mvapich2(Package): "--enable-romio", "--disable-silent-rules", "--enable-threads={0}".format(spec.variants['threads'].value), + "--with-ch3-rank-bits={0}".format( + spec.variants['ch3_rank_bits'].value), ] if self.compiler.f77 and self.compiler.fc: |