Optimize ACC port of atm_advance_acoustic_step_work:3976 - #1512
Draft
abishekg7 wants to merge 6 commits into
Draft
Optimize ACC port of atm_advance_acoustic_step_work:3976#1512abishekg7 wants to merge 6 commits into
abishekg7 wants to merge 6 commits into
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This PR introduces optimizations for the OpenACC port of atm_advance_acoustic_step_work:3964. The table below lists the timings for a real, global 30km experiment on A100 GPU with the nvhpc.
For nvhpc gpu runs, -gpu=math_uniform is introduced as a build flag to ensure optimizations are bit-identical, and the we report the numbers using NV_ACC_TIME=1. The GPU runs are on 1 Derecho GPU node, using 1 A100 via 1 MPI task.