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Fix command graph generation bugs around reductions #223

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merged 3 commits into from
Nov 8, 2023
Merged

Fix command graph generation bugs around reductions #223

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3853c92
Fix: Reduction commands must anti-depend on their partial-result pushes
fknorr Oct 25, 2023
8183de9
Fix: Results from single-node reductions must be await-pushed on othe…
fknorr Oct 25, 2023
2f6687a
Update benchmark results for #223
fknorr Nov 2, 2023
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9 changes: 7 additions & 2 deletions CHANGELOG.md
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Expand Up @@ -8,16 +8,21 @@ Versioning](http://semver.org/spec/v2.0.0.html).

## [Unreleased] - 2023-??-??

## Added
### Added

- Introduce new experimental `for_each_item` utility to iterate over a celerity range (#199)
- Add new environment variables `CELERITY_HORIZON_STEP` and `CELERITY_HORIZON_MAX_PARALLELISM` to control Horizon generation (#199)
- Add new `experimental::constrain_split` API to limit how a kernel can be split (#?)

## Changed
### Changed

- Added breadth-triggered Horizons. Improves performance in some scenarios, and prevents programs with many independent tasks from running out of task queue space (#199)

### Fixed

- In edge cases, command graph generation would fail to generate await-push commands when re-distributing reduction results (#223)
- Command graph generation was missing an anti-dependency between push-commands of partial reduction results and the final reduction command (#223)

## [0.4.1] - 2023-09-08

We recommend using the following SYCL versions with this release:
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