[petsc-users] valgrind with petscmpiexec

[Barry Smith]

  No idea. Perhaps petscmpiexec could be modified so it only ran valgrind on the first 10 ranks? Not clear how to do that. Or valgrind should get a MR that removes this small arbitrary limitation on the number of processes. 576 is so 2000 :-)


  Barry


> On Dec 14, 2020, at 11:59 PM, Fande Kong <fdkong.jd at gmail.com> wrote:
> 
> Hi All,
> 
> I tried to use valgrind to check if the simulation is valgrind clean because I saw some random communication fails during the simulation.
> 
> I tried this command-line
> 
> petscmpiexec -valgrind -n 576  ../../../moose-app-oprof  -i input.i -log_view -snes_view
> 
> 
> But I got the following error messages:
> 
> valgrind: Unable to start up properly.  Giving up.
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_8c3fabf2
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_8cac2243
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_da8d30c0
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_877871f9
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_c098953e
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_aa649f9f
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_097498ec
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_bfc534b5
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_7604c74a
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_a1fd96bb
> ==75586== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_4c8857d8
> valgrind: Startup or configuration error:
> valgrind:    Can't create client cmdline file in /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75586_cmdline_4c8857d8
> valgrind: Unable to start up properly.  Giving up.
> ==75596== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75596_cmdline_bc5492bb
> ==75596== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75596_cmdline_ec59a3d8
> valgrind: Startup or configuration error:
> valgrind:    Can't create client cmdline file in /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75596_cmdline_ec59a3d8
> valgrind: Unable to start up properly.  Giving up.
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_b036bdf2
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_105acc43
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_9fb792c0
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_30602bf9
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_21eec73e
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_0b53e99f
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_73e31aec
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_486e8eb5
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_db8c194a
> ==75597== VG_(mkstemp): failed to create temp file: /var/tmp/pbs.3110013.sawtoothpbs/valgrind_proc_75597_cmdline_839780bb
> 
> 
> I did a bit search online, and found something related https://stackoverflow.com/questions/13707211/what-causes-mkstemp-to-fail-when-running-many-simultaneous-valgrind-processes <https://stackoverflow.com/questions/13707211/what-causes-mkstemp-to-fail-when-running-many-simultaneous-valgrind-processes>
> 
> But do not know what is the right way to fix the issue.
> 
> Thanks so much,
> 
> Fande,
> 

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