Task #3031
evaluate the impact of particle order on PME
Description
The DD sorting does have an impact on PME performance, especially on GPUs. In current code this effect can be measured with single rank vs separate PME rank runs.
This impact should be evaluated across a range of input sizes (possibly densities?).
Related issues
History
#1 Updated by Szilárd Páll 13 days ago
- Related to Feature #2054: PME on GPU added
#2 Updated by Jonathan Vincent 13 days ago
What is the change/patch that implements DD sorting?
I should look at this as well.
#3 Updated by Szilárd Páll 8 days ago
Jonathan Vincent wrote:
What is the change/patch that implements DD sorting?
This is not a new feature, any multi-rank run will do that.