Files
composable_kernel/include/ck_tile/ops/common/streamk_common.hpp
Emily Martins fc3180120e [rocm-libraries] ROCm/rocm-libraries#4756 (commit 79bc2ca)
[CK_TILE] Update Stream-K Reduction Strategy Enum

## 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 06:41:15 +00:00

16 lines
281 B
C++

// Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
// SPDX-License-Identifier: MIT
#pragma once
#include "ck_tile/core.hpp"
namespace ck_tile {
enum StreamKReductionStrategy : uint32_t
{
Atomic = 0u,
Linear = 1u,
Tree = 2u
};
} // namespace ck_tile