Commit Graph

4 Commits

Author SHA1 Message Date
Emily Martins
cf00dc87d0 [CK_TILE] Update Stream-K Reduction Strategy Enum (#4756)
## Motivation

Currently, Stream-K has 3 reduction options: 1) atomics, 2) The
reduction described in the Stream-K paper, and 3) a tree reduction. The
reduction strategy described in the original Stream-K paper has the
starting workgroup of each tile sequentially accumulating partial
results of other contributing workgroups in the tile, which requires a
linear number of steps. Hence, for clarity, this works updates the
naming of the `StreamKReductionStrategy` enum members to better describe
the existing reduction strategy options.

## Technical Details

Prior to this change, the enum is as follows:
```cpp
enum StreamKReductionStrategy : uint32_t
{
    Atomic        = 0u,
    Reduction     = 1u,
    TreeReduction = 2u
};
```
But, the distinction between `Reduction` and `TreeReduction` is not very
clear and has some redundancy.
Hence, the updated enum is as follows:
```cpp
enum StreamKReductionStrategy : uint32_t
{
    Atomic = 0u,
    Linear = 1u,
    Tree   = 2u
};
```
All references to `StreamKReductionStrategy` were updated to reflect
this change.
## Test Plan

No new functionality was added, so no new tests were added; I just
validated existing tests and examples.

## Test Result

All tests passed locally.

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
2026-02-24 06:40:08 +00:00
Cong Ma
0343c4e1fe Introduces the new partitioner to implement the reduction StreamK kernel. (#3107)
* Introduces the new partitioner to implement the reduction StreamK kernel

* Add more doc text to functions

* Add persistent-dp option to streamk example

* Update example/ck_tile/40_streamk_gemm/README.md

[ROCm/composable_kernel commit: 5abe4109e0]
2025-11-04 10:32:17 -07:00
arai713
71fef01df6 [CK_TILE] Stream-K Gemm Example for fp8 and bf8 (#3041)
* Addition of streamk fp8 example for CK Tile

* Adding in bf8 streamk example in CK Tile

* Refactoring fp8/bf8 unit tests

Refactored the unit tests for fp8/bf8 to utilize the test harness.
Implemented smoke tests with layouts: CCR, CRR, RCR, RRR for fp8/bf8.
The tests are using 128x128x32 for the tile configuration, as other
configurations revealed implementation gaps that are currently being
documented.

[ROCm/composable_kernel commit: 715395bc86]
2025-10-27 19:29:03 -07:00
Emily Martins
ae91f79c96 Code style clean-up and documentation
The following changes were made:
- Clean-up of variable namings
- Addition of README
- Removal of num_cu and occupancy args; such options are meant for
  testing purposes and should not be exposed to the user
- Removal of CK_TILE_PIPELINE_MEMORY macro and PipelineTypeTraits class
  since we only support one pipeline at the moment.


[ROCm/composable_kernel commit: 243118c275]
2025-09-29 15:46:24 -06:00