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Bug #2837

"Launch NB GPU tasks" subcounter double-counts

Added by Szilárd Páll 11 months ago. Updated 10 months ago.

Status:
Closed
Priority:
Low
Category:
mdrun
Target version:
Affected version - extra info:
Affected version:
Difficulty:
uncategorized
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Description

Computing:          Num   Num      Call    Wall time         Giga-Cycles      
                    Ranks Threads  Count      (s)         total sum    %      
----------------------------------------------------------------------------  
Neighbor search        1    8         21       0.263          4.413   3.9     
Launch GPU ops.        1    8       4002       0.265          4.456   4.0     
Force                  1    8       2001       2.595         43.602  38.8     
Wait PME GPU gather    1    8       2001       0.733         12.318  11.0     
Reduce GPU PME F       1    8       2001       0.086          1.447   1.3     
Wait GPU NB local      1    8       2001       1.491         25.057  22.3     
NB X/F buffer ops.     1    8       3981       0.348          5.839   5.2     
Update                 1    8       2001       0.247          4.154   3.7     
Constraints            1    8       2001       0.498          8.361   7.4     
Rest                                           0.159          2.671   2.4     
----------------------------------------------------------------------------  
Total                                          6.686        112.318 100.0     
----------------------------------------------------------------------------  
Breakdown of PP computation                                                   
----------------------------------------------------------------------------  
NS grid local          1    8         21       0.051          0.861   0.8     
NS search local        1    8         21       0.194          3.254   2.9     
Bonded F               1    8       2001       2.465         41.418  36.9     
Listed buffer ops.     1    8       2001       0.045          0.762   0.7     
Launch NB GPU tasks    1    8       4002       0.064          1.078   1.0     
Launch PME GPU task    1    8       2001       0.200          3.360   3.0     
NB X buffer ops.       1    8       1980       0.167          2.806   2.5     
NB F buffer ops.       1    8       2001       0.180          3.028   2.7     
----------------------------------------------------------------------------  

Associated revisions

Revision 527656fc (diff)
Added by Szilárd Páll 11 months ago

Fix double-increment of GPU NB launch subcounter

Only increment once per nonbonded task per step.

Fixes #2837

Change-Id: Ic68bf1af184f895f2fb769b026855fd3d48fa849

History

#1 Updated by Gerrit Code Review Bot 11 months ago

Gerrit received a related patchset '1' for Issue #2837.
Uploader: Szilárd Páll ()
Change-Id: gromacs~release-2019~Ic68bf1af184f895f2fb769b026855fd3d48fa849
Gerrit URL: https://gerrit.gromacs.org/9057

#2 Updated by Szilárd Páll 11 months ago

  • Status changed from New to Resolved

#3 Updated by Mark Abraham 10 months ago

  • Status changed from Resolved to Closed

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