Bug #2837
"Launch NB GPU tasks" subcounter double-counts
Description
Computing: Num Num Call Wall time Giga-Cycles
Ranks Threads Count (s) total sum %
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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
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Total 6.686 112.318 100.0
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Breakdown of PP computation
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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
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Associated revisions
History
#1 Updated by Gerrit Code Review Bot 6 months ago
Gerrit received a related patchset '1' for Issue #2837.
Uploader: Szilárd Páll (pall.szilard@gmail.com)
Change-Id: gromacs~release-2019~Ic68bf1af184f895f2fb769b026855fd3d48fa849
Gerrit URL: https://gerrit.gromacs.org/9057
#2 Updated by Szilárd Páll 6 months ago
- Status changed from New to Resolved
Applied in changeset 527656fcc97a6fcfdee077578d0c2e49a405e368.
#3 Updated by Mark Abraham 6 months ago
- Status changed from Resolved to Closed
Fix double-increment of GPU NB launch subcounter
Only increment once per nonbonded task per step.
Fixes #2837
Change-Id: Ic68bf1af184f895f2fb769b026855fd3d48fa849