Bug #3265

regressiontests/complex fails on ppc64le

Added by Christoph Junghans about 1 year ago. Updated about 1 year ago.

Blocked, need info
Target version:
Affected version - extra info:
Affected version:


42/46 Test #42: regressiontests/complex .............***Failed   56.10 sec
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GROMACS:      gmx mdrun, version 2019.5
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Mdrun cannot use the requested (or automatic) number of ranks, retrying with 8.
Abnormal return value for ' gmx mdrun    -nb cpu   -notunepme >mdrun.out 2>&1' was 1
Retrying mdrun with better settings...
FAILED. Check checkpot.out (5 errors), checkforce.out (460 errors) file(s) in nbnxn-ljpme-geometric for nbnxn-ljpme-geometric
1 out of 51 complex tests FAILED

Build log attached

build_ppc64le.log.txt (6.87 MB) build_ppc64le.log.txt Christoph Junghans, 12/23/2019 09:16 PM


#1 Updated by Erik Lindahl about 1 year ago

  • Assignee changed from Paul Bauer to Erik Lindahl
  • Priority changed from Normal to High

#2 Updated by Erik Lindahl about 1 year ago

  • Status changed from New to Blocked, need info

I can't reproduce this on our Power9 machine running Ubuntu-18.04, using either gcc-7.4, gcc-9.2, fftw-3.3.7 or fftw-3.3.8 (with or without VSX), and with the exact same cmake command (removing the redhat-specific paths).

#3 Updated by Erik Lindahl about 1 year ago

  • Priority changed from High to Low

#4 Updated by Szilárd Páll about 1 year ago

What hardware is this executed on? I still see regressiontest failures with 2019.5 on Power8 with vanilla gcc 9.2. I've been in touch with IBM people who said at least a codegen issue has been fixed in gcc 9.2, but this does not seem to resolve all Power8-related bugs. Power9 seemed to pass extensive testing when I last tried last November however.

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