Commit Graph

1459 Commits

Author SHA1 Message Date
Aviral Goel
fc7e265563 fix: correct ULP calculation in get_absolute_threshold for BF16 tolerance (#4556)
## Motivation

BF16 grouped GEMM tests were failing on gfx1201 with errors like:
```
Error: Incorrect results! out[5457621] != ref[5457621]: -66 != -65.5
max err: 0.5, number of errors: 1
```

The calculated absolute tolerance (atol ~0.26) was too small to account
for legitimate hardware vs software BF16 conversion differences (0.5
ULP).

## Changes

1. **Discrete exponent calculation**: Changed from continuous `log2()`
to `floor(log2())` to match actual IEEE 754 floating-point exponent
levels
2. **Full ULP for output_error**: Changed from 0.5 to 1.0 ULP to account
for hardware `__bf16` vs software `float_to_bf16()` conversion
differences

## Calculation Example

For the failing case with value ~66:

**Before (incorrect):**
```
expo = log2(66) = 6.044...
atol = 2^(6.044 - 7) * 0.5 = 2^(-0.956) * 0.5 ≈ 0.26
Error 0.5 > 0.26 → Test fails 
```

**After (correct):**
```
discrete_expo = floor(log2(66)) = 6
atol = 2^(6 - 7) * 1.0 = 2^(-1) * 1.0 = 0.5
Error 0.5 ≤ 0.5 → Test passes ✓
```

The ULP for values in [64, 128) is 2^(-1) = 0.5, and the error of 0.5 is
exactly 1 ULP, which is the maximum expected difference between hardware
and software BF16 conversions at tie cases.

## Rationale

Hardware and software BF16 conversions can differ by up to 1 ULP at tie
cases due to different rounding strategies (hardware vs IEEE 754
round-to-nearest-even). The discrete exponent ensures ULP is calculated
correctly for all values within an exponent range.

**Modified file**:
`projects/composablekernel/include/ck_tile/host/check_err.hpp`
2026-02-20 13:45:06 +04:00
assistant-librarian[bot]
9c8d3a39ac 173 implement device grouped gemm fixed nk for rdna4 (#4299)
## Proposed changes

This PR adds an RDNA4 implementation of the device_grouped_gemm_fixed_nk
instance library using for WMMA.

The implementation is based on the existing
DeviceGroupedGemm_Xdl_Fixed_NK design and reuses the same high-level
structure, but replaces the XDL kernel with a WMMA-based one. It uses
the GridwiseGemm_wmma_cshuffle_v3 kernel.

At this stage, the focus is functional correctness and compatibility,
not performance tuning.

## Technical Details

- Device struct for grouped gemm fixed NK
- Example code for the WMMA version
- Unit tests for both new wmma implementation and the reference XDL code
(previously missing)
- Generic ck profiler interface with the purpose of calling unit tests.

## Checklist

Please put an into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [x] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [x] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [ ] I have added inline documentation which enables the maintainers
with understanding the motivation
- [ ] I have removed the stale documentation which is no longer relevant
after this pull request
- [x] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [x] I have run  on all changed files
- [x] Any dependent changes have been merged

## Discussion

If this is a relatively large or complex change, feel free to start a
discussion by explaining why you chose the solution you did and what
alternatives you considered



---
🔁 Imported from
[ROCm/composable_kernel#3668](https://github.com/ROCm/composable_kernel/pull/3668)
🧑‍💻 Originally authored by @bidlekm

---------

Co-authored-by: Marton Bidlek <marton.bidlek@streamhpc.com>
Co-authored-by: Erwin Terpstra <erwin.terpstra@streamhpc.com>
Co-authored-by: bidlekm <bidlekmarton@gmail.com>
Co-authored-by: assistant-librarian[bot] <assistant-librarian[bot]@users.noreply.github.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>
2026-02-19 09:13:05 +01:00
assistant-librarian[bot]
9d437c0630 moe flatmm xcd remap (#4297)
co-authors: @Chi-Chu319 @juuso-oskari 

Added XCD remapping for flatmm moe
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batch | Mixtral (tflops, wip_355) | Mixtral-7B  (tflops, our branch) |
perf boost
-- | -- | -- | --
64 | 865.424 | 995.455 | 15.0%
256 | 886.336 | 1020.96 | 15.2%
1024 | 890.808 | 1022.53 | 14.8%



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---
🔁 Imported from
[ROCm/composable_kernel#3161](https://github.com/ROCm/composable_kernel/pull/3161)
🧑‍💻 Originally authored by @Chi-Chu319

---------

Co-authored-by: Tianxing Wu <chi0chu319@gmail.com>
Co-authored-by: Tianxing Wu <tianxing.wu@amd.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>
2026-02-18 11:32:15 -08:00
Thomas Ning
e5fb690945 Fix the Composable Kernel CI and versions incompatibility (#4640)
## Motivation

This PR has 4 patches:
1. Fix the CI error of grouped gemm.
2. Fix the incompatibility of old linux version.
3. Fix the potential errors of flatmm.
4. Address the previous comments of abquant eight warps pipeline
solution.

---------

Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>
2026-02-18 06:59:37 -08:00
Jan Patrick Lehr
c44ccc1d2c [CK] Work around staging compiler lifetime warning (#4419)
## Motivation
The staging compiler enables lifetime-safety warnings and we already
worked around a few of them.
This works around a few more instances that came up recently on gfx950
builds.
The initial PR that resolved most issues:
https://github.com/ROCm/composable_kernel/pull/3640

## Technical Details
This follows the pattern to locally ignore the newly added
lifetime-safety warnings that were moved from experimental to production
in upstream LLVM.
As a result, CK turned them on and treats them as errors, which prevents
the staging compiler from building CK.

## Test Plan

## Test Result

## Submission Checklist

- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
2026-02-12 22:11:53 +00:00
assistant-librarian[bot]
015bf06008 add memsetasync for ck moe splitk (#4282)
## Proposed changes

add memsetasync for ck moe splitk to fix 

## Checklist

Please put an `x` into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [ ] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [ ] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [ ] I have added inline documentation which enables the maintainers
with understanding the motivation
- [ ] I have removed the stale documentation which is no longer relevant
after this pull request
- [ ] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [ ] I have run `clang-format` on all changed files
- [ ] Any dependent changes have been merged

## Discussion

If this is a relatively large or complex change, feel free to start a
discussion by explaining why you chose the solution you did and what
alternatives you considered



---
🔁 Imported from
[ROCm/composable_kernel#3630](https://github.com/ROCm/composable_kernel/pull/3630)
🧑‍💻 Originally authored by @lalala-sh

---------

Co-authored-by: lalala-sh <Jiaxing.Wen@amd.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
2026-02-12 09:44:51 -08:00
Christopher Millette
a95cf55aa7 [CK] Optimize multi-dimensional static for loop decomposition (#4447)
## Motivation
Recursive template implementations might initially seem attractive to
minimize necessary coding.

Unfortunately, this style is often affects readability and requires
significant resources from the compiler to generate instantiation
chains. In "high-traffic" code (e.g., used in many places + compilation
units), this generally does not scale well and can bloat the overall
compile times to unnecessary lengths.

The aim of this PR is to take some of most high-traffic utility code and
try our best to eliminate recursive templates in favor of fold
expansions and constexpr function helpers.

In local tests with clang build analyzer,
device_grouped_conv2d_fwd_xdl_ngchw_gkcyx_ngkhw_f16_16x16_instance.cpp
showed high hit-rates on slow template instantiations in static_for,
dimensional static_for (static_ford), which are subsequently affected by
implementation of the Sequence class and associated transforms.

Example:
**** Templates that took longest to instantiate:
70111 ms: ck::detail::applier<int, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 1... (372 times, avg 188 ms) // **70 seconds!**

The above is part of the implementation of static_for which uses
Sequence classes..


## Technical Details

### Summary of Optimization Techniques

| Technique | Used In | Benefit |
 |-----------|---------|---------| 
| __Constexpr for-loop computation__ | sequence_reverse_inclusive_scan,
sequence_map_inverse | Moves O(N) work from template instantiation to
constexpr evaluation |
| __Pack expansion with indexing__ | sequence_reverse, Sequence::Modify
| Single template instantiation instead of recursive |
| __Flat iteration + decomposition__ | ford, static_ford | O(1) template
depth instead of O(N^D) |
| __Pre-computed strides__ | index_decomposer | Enables O(1)
linear-to-multi-index conversion |

### Impact on Compile Time

These optimizations reduce template instantiation depth from O(N) or
O(N^D) to O(1), which:

1. Reduces compiler memory usage
2. Reduces compile time exponentially for deep instantiation chains
3. Enables larger iteration spaces without hitting template depth limits


## Test Plan

* Existing tests for Sequence are re-used to affirm correctness
* Unit tests for ford and static_ford are added (dimensional looping)
* 8 new regression tests specifically verify the fixes for the PR
feedback:

  - `NonTrivialOrder3D_201` - Tests Orders<2,0,1> for static_ford
  - `NonTrivialOrder3D_201_Runtime` - Tests Orders<2,0,1> for ford
- `ConsistencyWithNonTrivialOrder_201` - Verifies static_ford and ford
consistency
  - `NonTrivialOrder3D_120` - Tests Orders<1,2,0> for static_ford
  - `NonTrivialOrder3D_120_Runtime` - Tests Orders<1,2,0> for ford
  - `NonTrivialOrder4D` - Tests 4D with Orders<3,1,0,2> for static_ford
  - `NonTrivialOrder4D_Runtime` - Tests 4D with Orders<3,1,0,2> for ford
- `AsymmetricDimensionsWithOrder` - Tests asymmetric dimensions with
non-trivial ordering


## Test Result
### Compile Time Comparison: `8b72bc8` (base) → `477e0686` (optimized)

#### Commits in Range (8 commits)

1. `fd4ca17f48` - Optimize sequence_reverse_inclusive_scan and
sequence_reverse
2. `7a7e3fdeef` - Optimize sequence_map_inverse
3. `92855c9913` - Optimize ford and static_ford calls to eliminate
nested template recursion
4. `88a564032b` - Add unit tests for ford and static_ford
5. `1a0fb22217` - Fix clang-format
6. `8a0d26bddf` - Increase template recursion depth to 1024
7. `dc53bb6e20` - Address copilot feedback and add regression tests
8. `477e06861d` - Increase bracket depth to 1024

#### Build Timing Results

| File | Base (8b72bc8759d9 | HEAD(a0438bd398) | Improvement | 
|------|------|------|-------------| 
| grouped_conv2d_fwd (f16) -j1 | 313.31s | 272.93s | __12.9% faster__ | 
| grouped_conv1d_fwd (bf16) -j1 | 79.33s | 68.61s | __13.5% faster__ | 
| grouped_conv1d_bwd_weight (f16) -j1| 15.77s | 14.31s | __9.2% faster__
|
| device_grouped_conv2d_fwd_instance -j64 | s | s | __% faster__ |


#### Key Optimizations

1. __sequence_reverse_inclusive_scan/sequence_reverse__: O(N) → O(1)
template depth
2. __sequence_map_inverse__: O(N) → O(1) template depth
3. __ford/static_ford__: O(N^D) → O(1) template depth using flat
iteration with index decomposition
4. __Copilot feedback fixes__: Corrected New2Old mapping for non-trivial
orderings


## Submission Checklist

- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

---------

Co-authored-by: Max Podkorytov <4273004+tenpercent@users.noreply.github.com>
2026-02-11 22:12:31 +00:00
Christopher Millette
77169ae227 [CK] Optimize vector type build times (#4471)
**Supercedes https://github.com/ROCm/rocm-libraries/pull/4281 due to CI
issues on import**

## Proposed changes

Build times can be affected by many different things and is highly
attributed to the way we write and use the code. Two critical areas of
the builds are **frontend parsing** and **backend codegen and
compilation**.

### Frontend Parsing
The length of the code, the include header tree and macro expansions all
affect the front-end parsing time.
This PR seeks to reduce the parsing time of the dtype_vector.hpp
vector_type class by reducing redundant code by generalization.
* Partial specializations of vector_type for native and non-native
datatypes have been generalized to one single class, consolidating all
of the data initialization and AsType casting requirements into one
place.
* The class nnvb_data_t_selector (e.g., Non-native vector base dataT
selector) class has been removed and replaced with scalar_type
instantiations as they have the same purpose. Scalar type class' purpose
is already to map generalized datatypes to native types compatible with
ext_vector_t.

### Backend Codegen
Template instantiation behavior can also affect build times. Recursive
instantiations are very slow versus concrete instantiations. The
compiler must make multiple passes to expand template instantiations so
we need to be careful about how they are used.
* Previous vector_type classes declared a union storage class, which
aliases StaticallyIndexedArray<T,N>.
```
template <typename T>
struct vector_type<T, 4, typename ck::enable_if_t<is_native_type<T>()>>
{
    using d1_t = T;
    typedef T d2_t __attribute__((ext_vector_type(2)));
    typedef T d4_t __attribute__((ext_vector_type(4)));

    using type = d4_t;

    union
    {
        d4_t d4_;
        StaticallyIndexedArray<d1_t, 4> d1x4_;
        StaticallyIndexedArray<d2_t, 2> d2x2_;
        StaticallyIndexedArray<d4_t, 1> d4x1_;
    } data_;
   ...
};
```
* Upon further inspection, StaticallyIndexedArray is built on-top of a
recursive Tuple concatenation.
```
template <typename T, index_t N>
struct StaticallyIndexedArrayImpl
{
    using type =
        typename tuple_concat<typename StaticallyIndexedArrayImpl<T, N / 2>::type,
                              typename StaticallyIndexedArrayImpl<T, N - N / 2>::type>::type;
};
```
This union storage has been removed from the vector_type storage class. 

* Further references to StaticallyIndexedArray have been replaced with
StaticallyIndexedArray_v2, which is a concrete implementation using
C-style arrays.
```
template <typename T, index_t N>
struct StaticallyIndexedArray_v2
{
    ...

    T data_[N];
};
```

### Fixes
* Using bool datatype with vector_type was previously error prone. Bool,
as a native datatype would be stored into bool ext_vector_type(N) for
storage, which is a packed datatype. Meaning that for example,
sizeof(bool ext_vector_type(4)) == 1, which does not equal
sizeof(StaticallyIndexedArray<bool ext_vector_type(1), 4> == 4. The
union of these datatypes has incorrect data slicing, meaning that the
bits location of the packed bool do not match with the
StaticallyIndexedArray member. As such, vector_type will use C-Style
array storage for bool type instead of ext_vector_type.
```
template <typename T, index_t Rank>
using NativeVectorT = T __attribute__((ext_vector_type(Rank)));

sizeof(NativeVectorT<bool, 4>) == 1  (1 byte per 4 bool - packed)
element0 = bit 0 of byte 0
element1 = bit 1 of byte 0
element2 = bit 2 of byte 0
element3 = bit 3 of byte 0

sizeof(StaticallyIndexedArray[NativeVectorT<bool, 1>, 4] == 4  (1 byte per bool)
element0 = bit 0 of byte 0
element1 = bit 0 of byte 1
element1 = bit 0 of byte 2
element1 = bit 0 of byte 3

union{
    NativeVectorT<bool, 4> d1_t;
    ...
    StaticallyIndexedArray[NativeVectorT<bool,1>, 4] d4x1;
};

// union size == 4 which means invalid slicing!
```
* Math utilities such as next_power_of_two addressed for invalid cases
of X < 2
* Remove redundant implementation of next_pow2

### Additions
* integer_log2_floor to math.hpp
* is_power_of_two_integer to math.hpp

### Build Time Analysis

Machine:  banff-cyxtera-s78-2
Target: gfx942

| Build Target | Threads | Frontend Parse Time (s) | Backend Codegen
Time (s) | TotalTime (s) | commitId |

|---------------|---------|-------------------------|--------------------------|---------------|
---------------|
| device_grouped_conv3d_fwd_bias_bnorm_clamp_instance | 1 | 1452 | 331 |
1783 | 2e08a7e (develop) |
| device_grouped_conv3d_fwd_bias_bnorm_clamp_instance | 1 | 1403 | 332 |
1735 (-2.7%) | fad4235|


## Submission Checklist

- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
2026-02-11 11:59:43 -07:00
Bartłomiej Kocot
790a786035 [CK][CK TILE] Add has hot loop check for pipeline v1 (#4407)
## Motivation

Add has hot loop check for pipeline v1 (v1 basic and v1 basic async).
Enable more tests which have been fixed by this change.

## Technical Details

Hot loop has been executed without num loop check.

## Test Plan

test_grouped_convnd_fwd_tile

## Test Result

Passed

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
AICK-651
AICK-663
2026-02-11 13:41:59 +00:00
assistant-librarian[bot]
4e7ecd7f40 [Conv] Add NumGroupsToMerge to BwdWeight type string (#4271)
## Proposed changes

Add parameter to bwd weight V3 type string showing the number of groups
to merge. This is required for MIOpen to be properly tuned since it uses
type strings for performance database entries.

In order to not break existing tuning databases, the parameter is added as a named suffix and only when group merging is enabled.

## Checklist

Please put an `x` into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [ ] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [ ] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [ ] I have added inline documentation which enables the maintainers
with understanding the motivation
- [ ] I have removed the stale documentation which is no longer relevant
after this pull request
- [ ] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [ ] I have run `clang-format` on all changed files
- [ ] Any dependent changes have been merged

## Discussion

If this is a relatively large or complex change, feel free to start a
discussion by explaining why you chose the solution you did and what
alternatives you considered



---
🔁 Imported from
[ROCm/composable_kernel#3679](https://github.com/ROCm/composable_kernel/pull/3679)
🧑‍💻 Originally authored by @johannes-graner

---------

Co-authored-by: Graner, Johannes <Johannes.Graner@amd.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: Bartłomiej Kocot <barkocot@amd.com>
2026-02-11 10:07:53 +01:00
Cong Ma
cdba8b787c [CK TILE] fix numerical errors of preshuffle_b (#4354)
This pull request introduces several improvements and fixes related to
quantized grouped GEMM (General Matrix Multiply) pipelines and their
supporting utilities.

# The numerical issue

## Steps to reproduce
```bash
Run 
./bin/tile_example_gemm_weight_preshuffle -prec=fp8
./bin/tile_example_gemm_weight_preshuffle -prec=int4
```

# Solution
The main changes address type correctness, improve data layout and
shuffling logic, and expand test coverage to better validate different
GEMM configurations.

**Key changes include:**

### Data layout and shuffling logic

* Refactored the logic in `shuffle_b_permuteN` to use `constexpr`
variables for `KLane` and `ItemsPerAccess`, simplifying tile view
construction and correcting the permutation order for improved
efficiency and correctness (`tensor_shuffle_utils.hpp`).
* Fixed the calculation of `KLaneBytes` in weight preshuffle pipeline
policies to account for internal data type conversion (e.g., from
`pk_int4_t` to `fp8`), ensuring accurate memory access and alignment in
quantized GEMM policies (`wp_pipeline_agmem_bgmem_creg_base_policy.hpp`,
`gemm_wp_abquant_pipeline_ag_bg_cr_base_policy.hpp`).
[[1]](diffhunk://#diff-93f16cd76e6e24404777e682a5ac8e039913ddd6a438c7efd61fdda42276e4efL274-R275)
[[2]](diffhunk://#diff-9c3d0fc3c014feed435bfd93ba1f8f9fb3e054dcc322deada3addf70bee5a58cL100-R105)

### Test infrastructure enhancements

* Unit tests did not catch this issue since there were no tests for fp8.
Added new configuration structs (`config_mn_16x16`, `config_mn_32x32`)
to support additional GEMM tile shapes and updated tests to run with
these configurations for broader coverage
(`test_gemm_pipeline_util.hpp`).
[[1]](diffhunk://#diff-5a5962b2c4aa7f6a87d1d6201ad383135e30df13b42654e997d870d57420d5b8R86-R103)
[[2]](diffhunk://#diff-5a5962b2c4aa7f6a87d1d6201ad383135e30df13b42654e997d870d57420d5b8L255-R269)

Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
2026-02-10 23:04:44 -08:00
assistant-librarian[bot]
844b598330 Add padding to cshuffle epilogue to avoid bank conflict (#4274)
## Proposed changes

Added the padding to CShuffle Epilogue to avoid the bank conflicts of
64. Synced up and learned from the internal repo.

## Checklist

Please put an `x` into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [ ] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [ ] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [ ] I have added inline documentation which enables the maintainers
with understanding the motivation
- [ ] I have removed the stale documentation which is no longer relevant
after this pull request
- [ ] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [ ] I have run `clang-format` on all changed files
- [ ] Any dependent changes have been merged

## Discussion

If this is a relatively large or complex change, feel free to start a
discussion by explaining why you chose the solution you did and what
alternatives you considered



---
🔁 Imported from
[ROCm/composable_kernel#3671](https://github.com/ROCm/composable_kernel/pull/3671)
🧑‍💻 Originally authored by @ThomasNing

---------

Co-authored-by: ThomasNing <thomas.ning@amd.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>
2026-02-10 22:52:00 -07:00
assistant-librarian[bot]
d8a911202a Add a README.md file to ck/library/util (#4277)
I'm collecting information about our current testing (#3664). As part of
this work I a README to the directory to emphasize the GPU-first testing
strategy and our support for type-specific tolerances.

This readme contains internal code comments for CK developers and does
not need ROCm documentation review.

---
🔁 Imported from
[ROCm/composable_kernel#3665](https://github.com/ROCm/composable_kernel/pull/3665)
🧑‍💻 Originally authored by @shumway

Co-authored-by: John Shumway <jshumway@amd.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
2026-02-10 21:26:45 +00:00
assistant-librarian[bot]
2073f0a73b [CK_TILE]: PreshuffleB + PreshuffleBQuant for ABQuant pipeline (#4268)
## Proposed changes

Implement BQuantPreshuffle option for the ABQuant PreshuffleB pipeline.

## Checklist

Please put an `x` into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [X] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [X] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [X] I have added inline documentation which enables the maintainers
with understanding the motivation
- [X] I have removed the stale documentation which is no longer relevant
after this pull request
- [ ] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [X] I have run `clang-format` on all changed files
- [X] Any dependent changes have been merged



---
🔁 Imported from
[ROCm/composable_kernel#3687](https://github.com/ROCm/composable_kernel/pull/3687)
🧑‍💻 Originally authored by @ErwinTerpstra

---------

Co-authored-by: Erwin Terpstra <erwin.terpstra@streamhpc.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
2026-02-10 06:57:55 -07:00
Yi DING
824af07002 [CK_TILE] Blockscale Gemm Fix Multi-Arch Compilation (#4451)
## Motivation
This PR updates CK_TILE blockscale GEMM-quant kernels and launch helpers
to compile across multiple GPU architectures by introducing compile-time
availability gating and a new attribute tag mechanism for kernel
symbol/attribute specialization.

## Technical Details
- Add an architecture-guarded `kIsAvailable` flag to the gfx950 pipeline
and propagate availability handling into `QuantGemmKernel`.
- Extend `make_kernel`/`kentry` to accept an `Attr` tag enabling
per-kernel compile-time attributes (e.g., `no-packed-fp32-ops`) and
unique symbols.
- Update the blockscale GEMM quant example to pass kernel attributes and
adjust gfx950 gating.

## Test Plan
- CI
- Local test: `cmake .. --preset dev -DGPU_TARGETS='gfx942;gfx950'
-GNinja && ninja tile_example_gemm_quant`
- Local test with ROCm/aiter#1954
## Test Result

<!-- Briefly summarize test outcomes. -->

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
2026-02-10 12:41:09 +00:00
Bartłomiej Kocot
0b9fa702ac [CK] CK Tile grouped convolution direct load (#4406)
## Motivation

CK Tile grouped convolution forward direct load support.

## Technical Details

Basic pipeline for direct load and new instances for forward for v1 and
v4 pipelines.

## Test Plan

test_grouped_convnd_fwd_tile

## Test Result

CI pending

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
AICK-130
2026-02-09 22:08:57 +01:00
Bartłomiej Kocot
72016e355e [CK] Fix grouped conv fwd transform for merged groups (#4399)
## Motivation

[CK] Fix grouped conv fwd transform for merged groups for 1d and 3d.

## Technical Details

After optimizations for 2d there is a lack of implementation for 1d and
3d

## Test Plan

test_grouped_convnd_fwd

## Test Result

pending CI

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
2026-02-09 09:36:52 -06:00
assistant-librarian[bot]
6c58796a52 [CK_TILE] Add blockscale GEMM support for EightWarps on gfx950 (#4280)
## Proposed changes

gemm blockscale eightwarps support

## Checklist

Please put an `x` into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [ ] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [ ] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [ ] I have added inline documentation which enables the maintainers
with understanding the motivation
- [ ] I have removed the stale documentation which is no longer relevant
after this pull request
- [ ] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [x] I have run `clang-format` on all changed files
- [x] Any dependent changes have been merged

## Discussion

If this is a relatively large or complex change, feel free to start a
discussion by explaining why you chose the solution you did and what
alternatives you considered



---
🔁 Imported from
[ROCm/composable_kernel#3650](https://github.com/ROCm/composable_kernel/pull/3650)
🧑‍💻 Originally authored by @kensclin

---------

Co-authored-by: KenSCLin <lshyhchy@amd.com>
Co-authored-by: Ding, Yi <yi.ding@amd.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: Thomas Ning <Thomas.Ning@amd.com>
2026-02-09 11:54:54 +08:00
jakpiase
71cc990ffd [CK_TILE] Add support and tests for V6 pipeline in conv fwd (#4357)
Added support for conv v6 pipeline in ck tile's convolution forward
kernel. CK Tile v6 pipeline is the equivalent to old ck's V5 pipeline
and should be faster than other pipelines for some cases. This PR also
adds tests inside profiler that's currently inside experimental
directory, so now we should be able to detect regressions easier.

---------

Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
Co-authored-by: subhajitdchow <sduttach@amd.com>
2026-02-08 20:57:14 +01:00
assistant-librarian[bot]
f38cd21b9e [CK] Add fwd conv group merging to v3 conv instances (#4273)
## Proposed changes

Added conv group merging to the (universal) V3 fwd conv pipeline. The
new instance improves fwd conv performance when the number of
input/output channel per group is low.

On MI300 (`gfx942`) we get

| CK prof command | Baseline (TFLOPS) | V3 group merging (TFLOPS) |
|:-----|:------:|------:|
| grouped_conv_fwd 1 1 1 0 1 0 1 2 32 32 4 4 3 3 200 200 1 1 1 1 1 1 1 1
| 3.86035 | 8.36796 |
| grouped_conv_fwd 1 1 1 0 1 0 1 2 32 32 8 8 3 3 200 200 2 2 1 1 1 1 1 1
| 10.1867 | 13.4677 |
| grouped_conv_fwd 1 1 1 0 1 0 1 2 32 32 8 8 3 3 100 100 1 2 1 1 1 1 1 1
| 11.7875 | 16.3657 |



---
🔁 Imported from
[ROCm/composable_kernel#3675](https://github.com/ROCm/composable_kernel/pull/3675)
🧑‍💻 Originally authored by @vpietila-amd

---------

Co-authored-by: Ville Pietilä <>
Co-authored-by: Ville Pietilä <188998872+vpietila-amd@users.noreply.github.com>
Co-authored-by: systems-assistant[bot] <systems-assistant[bot]@users.noreply.github.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
Co-authored-by: Bartlomiej Kocot <barkocot@amd.com>
2026-02-08 12:34:59 +01:00
Emily Martins
5c31eeeddb [CK_TILE] Fix MMA concepts compiler error (#4381)
## Motivation

CK Tile is required to support certain older OSs; on these OSs, cpp 20
is not fully supported. For ROCm 7.2, compiler errors occur on one of
these older OSs. An example of this error is as follows:

```bash
/composable_kernel/include/ck_tile/core/arch/mma/amdgcn_mma.hpp:34:28: error: expected concept name with optional arguments
   34 |     { MmaOp::kAMBlock } -> std::convertible_to<unsigned int>;
      |           
```

The goal of this PR is to resolve these compiler errors.

## Technical Details

The existing guards around the mma concepts only check if the concepts
language feature is supported, as follows:

```cpp
#if defined(__cpp_concepts) && __cpp_concepts >= 201907L
// ...
template <typename CtrlFlags>
concept CtrlFlagsGfx9I = requires(CtrlFlags ctrlFlags) {
    // Flag members for Gfx9 MFMA instructions
    { CtrlFlags::Cbsz } -> std::convertible_to<int>;
    { CtrlFlags::Abid } -> std::convertible_to<int>;
    { CtrlFlags::Blgp } -> std::convertible_to<int>;
};

#endif // defined(__cpp_concepts) && __cpp_concepts >= 201907L
```
That said, in cases where functionality from the `<concepts>` header is
used (e.g., `std::convertible_to`), this guard fails to check whether
the `<concepts>` header is available.

This change adds an additional check to the concepts that make use of
functionality from the `<concepts>` header to ensure the header is
available.

## Test Plan

I tested the changes on the relevant docker for gfx90a, gfx950, and
gfx942 and the compiler issue is not present.

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
2026-02-06 16:26:57 -08:00
Enrico Degregori
442c3097ee [CK] Workaround blockscale wp test failure (#4372)
## Motivation

Workaround to fix blockscale wp test failure for pipeline v3

## Technical Details

<!-- Explain the changes along with any relevant GitHub links. -->

## Test Plan

<!-- Explain any relevant testing done to verify this PR. -->

## Test Result

<!-- Briefly summarize test outcomes. -->

## Submission Checklist

- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
2026-02-06 16:09:08 -08:00
Illia Silin
4dc5f52f57 [CK] a bunch of CI fixes. (#4361)
## Motivation

Fixing some of the CK CI issues

## Technical Details

fixing paths to dockerfiles and scripts;
moving codegen tests to separate stage (collides with main build since
you must call cmake from same folder but different options);
fixing a couple of clang compilation issues with staging compiler;
2026-02-05 20:06:57 -05:00
assistant-librarian[bot]
4231c8d673 [CK] Add FP8 KV_BLOCKSCALE support for batch prefill (#4263)
Implement per-page K/V quantization for paged attention:
  - Add KV_BLOCKSCALE enum to BlockAttentionQuantScaleEnum
  - Use exp2 shift trick to eliminate explicit P scaling overhead
- Prefetch physical pages offset for KV cache, overlaps with
computations

## Proposed changes

Please describe the motivation behind the pull request, whether it
enables a new feature or fixes a bug. If there are associated pull
requests or issues, please link them to the pull request.

## Checklist

Please put an `x` into the boxes that apply. You can also fill these out
after creating the PR. If you're not sure, please don't hesitate to ask.

- [ ] I have added tests relevant to the introduced functionality, and
the unit tests are passing locally
- [ ] I have added the test to REGRESSION_TESTS list defined at the top
of CMakeLists.txt in tests/CMakeLists.txt, **IF** the test takes more
than 30 seconds to run.
- [ ] I have added inline documentation which enables the maintainers
with understanding the motivation
- [ ] I have removed the stale documentation which is no longer relevant
after this pull request
- [ ] (If this change is user-facing) I have added release notes which
provide the end users with a brief summary of the improvement from this
pull request
- [ ] I have run `clang-format` on all changed files
- [ ] Any dependent changes have been merged

## Discussion

If this is a relatively large or complex change, feel free to start a
discussion by explaining why you chose the solution you did and what
alternatives you considered



---
🔁 Imported from
[ROCm/composable_kernel#3696](https://github.com/ROCm/composable_kernel/pull/3696)
🧑‍💻 Originally authored by @Jeff-Huang

---------

Co-authored-by: Jeff Huang <chiachi.huang@amd.com>
Co-authored-by: Illia Silin <Illia.Silin@amd.com>
2026-02-04 18:25:31 -05:00
Illia Silin
ea1f04464b Revert "Implement device grouped gemm fixed nk multi abd for rdna4 (#3619)" (#3705)
This reverts commit 1a8bd3d34b.

[ROCm/composable_kernel commit: 569640dc70]
2026-02-03 09:52:14 -08:00
Max Podkorytov
dcb0e63334 Remove concrete performance numbers from BUILD_TIME_OPTIMIZATION.md (#3702)
Replace specific benchmark numbers with qualitative descriptions since
measurements vary across environments and may become outdated.

Co-authored-by: Claude <noreply@anthropic.com>

[ROCm/composable_kernel commit: 3f04d27b68]
2026-02-03 03:54:18 -07:00
Illia Silin
8d79fb88eb Fix one more lifetimebound error. (#3703)
* fix staging compiler errors

* fix clang format

[ROCm/composable_kernel commit: 8b56ffb6ae]
2026-02-02 18:25:56 -08:00
Aviral Goel
4ecc7da10e feat: add split_k support for block scale gemm bquant mode. (#3653)
* WIP: add splitk to bquant

* feat: add support for bf8i4 and fp8i4 by calculating correct stride for packed data types

* chore: remove temporary test script

* fix: incorrect tile window length for splitted bq tensor window

* chore: improve comments

* test: add unit tests to cover bquant splitk functionality

* fix: conflict resolution by renaming variables

[ROCm/composable_kernel commit: 3e77721755]
2026-02-02 14:41:53 -08:00
Zoltán Lakatos
1a8bd3d34b Implement device grouped gemm fixed nk multi abd for rdna4 (#3619)
* device struct implementation

* added xdl grouped multi abd fixed nk testing

* wmma implementation fixed

* avoid unnecessary device mem allocation and code cleanups

* cleanup instances definitions

* wmma examples added

* code cleanups

* fix clang format

* typo and compilation fixes related to reference gemm

* fix compilation error due to std::remove_cvref_t

* added missing hip_check_error includes

* correction to example instances

* review commentes addressed

* removed split-k from testing

* code formatting

---------

Co-authored-by: Zoltán Lakatos <zoltan.lakatos@streamhpc.com>
Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>

[ROCm/composable_kernel commit: 301eb5cf08]
2026-02-02 13:58:11 -08:00
Jan Patrick Lehr
4dece9c549 [Compiler] Addressing new compiler warnings (#3640)
* [Compiler] Addressing new compiler warnings

Clang enables new lifetime warnings in production and we see build
errors due to this with the staging compiler.

The attributes added in this PR are suggested by the compiler. However,
I'm not very familiar with the code base, so the changes may be
incorrect.

* Update some more instances

* Adds file-level ignores via clang diagnostic pragma

The number of instances was large, so I decided to use file-level scope
to disable the warning via pragma clang diagnostic ignored.

It also showed this warning coming from the gtest dependency. For that,
I did add the respective command line flag to the CMake variables. I
don't know if this is acceptable or not.

* This adds the remaining instances

For a build on gfx90a.

* fix clang format

* Adding couple more instances from gfx1200 build

* Fixed another few instances

---------

Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>
Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>

[ROCm/composable_kernel commit: 069500464d]
2026-02-02 09:39:48 -08:00
ZheWang
418ee44844 Mx fp6 flatmm (#3601)
* add fp6 data-type and support sync/async dwordx3 load/store

* clang-format

* pre-commit

* 1st commit

* default mnk pass ut

* fix a distrubution

* fix

* fix bdram distr

* update

* pass ut

* improve perf

* update

* clean code

* resolve copilot comment

* reslove comment

* clang-format

---------

Co-authored-by: ZheWang <zhewan@amd.com>

[ROCm/composable_kernel commit: e6bcd192d4]
2026-02-02 16:04:40 +08:00
Po Yen Chen
4947f0306c [CK_TILE] Fix incompatible vector type arguments for the intrinsic calls (#3672)
* Change call to the intrinsics

* fix clang format

* Undo changes under include/ck/utility

* Use named variable as vector size

---------

Co-authored-by: illsilin_amdeng <Illia.Silin@amd.com>

[ROCm/composable_kernel commit: 8c1788757a]
2026-01-30 12:02:49 -08:00
ApoorvaKalyani
629573e3e3 Test fix for gemm_b_scale_xdl_v3. (#3674)
[ROCm/composable_kernel commit: 70d71b1514]
2026-01-30 10:34:54 -07:00
jiangyon.ren
f6d2ca82b7 [CK_TILE][FMHA] Add sparse attention VSA (#3341)
* add sparse attention VSA

* fix the pre-commit

* Add jenga test and pre-commit

* add bf16 for vsa

* add jenga support bf16

* remove lse arg

* split kernel code to block & kernel

* fix the pre-commit

* fix the pre-commit

* fix the copyrights

* fix the copyright

* fix the copyright & rename block to pipeline

* fix the copyright and pipeline

* remove lse & dropout & add fmt

* fix the jenga&VSA code review

* remove the useless code & resolved the comments

* remove useless code

* remove useless code

* Clean up code

* Remove more unused code

* Re-format .hpp

* Refactor codegen scripts

---------

Co-authored-by: Po Yen Chen <PoYen.Chen@amd.com>
Co-authored-by: asleepzzz <hanwen.chang@amd.com>

[ROCm/composable_kernel commit: 4d2f8c111e]
2026-01-31 00:59:47 +08:00
Kiefer van Teutem
d34916a7ff Adding remaining conv, dynamic_op, and scaleadd_scaleadd_relu flavors for grouped conv fwd (#3529)
* Adding remaining flavors for grouped conv fwd

As titled. Following variants are added:
- grouped_conv2d_fwd_dynamic_op
- grouped_conv3d_fwd_dynamic_op
- grouped_conv3d_fwd_bilinear
- grouped_conv3d_fwd_convscale
- grouped_conv3d_fwd_convinvscale
- grouped_conv3d_fwd_convscale_add
- grouped_conv3d_fwd_convscale_relu
- grouped_conv3d_fwd_scale
- grouped_conv3d_fwd_combconvscale
- grouped_conv3d_fwd_scaleadd_scaleadd_relu

* Fix incomplete parsing of types from source names in add_instance_library() cmakelists function so we don't build f8 on RDNA3.

* Do not build f8 / bf8 only flavor tests on RDNA3

* Make sure we have proper generic instances for all instance lists related to the post-ces extra flavors, with scalarPerVector = 1. Then disable all but one generic instance per instance list to reduce compile time.

* Post rebase fix: Template parameters for Grouped Conv Fwd Device Impl got tweaked upstream.

* adding int8 and fp16 overloads to the elementwise operations

* fixed copilot nits

* Addressing review comments:

- removed unnecessary examples for dynamic op
- removed unnecessary conv specalizations for all the flavors
- removed spurious bilinear and scale source files

* clang-format

* reduced no of tests

---------

Co-authored-by: Wojciech Laskowski <wojciech.laskowski@streamhpc.com>

[ROCm/composable_kernel commit: 2377a62837]
2026-01-30 17:02:14 +01:00
Erwin Terpstra
a5824466fb [CK_Tile] Support for a4w4 (fp4) in block scale gemm AB quant (#3603)
* chore: split block scale example instances in more separate files to speed up compile times

* wip: fp4 scaffolding for abquant

* feat: add fp4 decoding-while-loading to abquant pipeline

* feat: add support for fp4 CPU verification in abquant

* chore: add time tracking to reference calculation

* feat: add a4w4 test for blockscale gemm

* feat: optimize reference calculation by preconverting values to AccType

* feat: add fp4 to fp8 look-up table

* fix: reference to wrong ComputeDataType field in QuantProblem

* feat: type utilities for determining MFMA compute types

* feat: packed fp4 for abquant weight preshuffle

* feat: add separate tests for a4w4 base case, padding and preshuffleB

* fix: fp4 conversion on gfx950 attempting to use non-supported method

* fix: test case was using quant group sizes which don't work on gfx950 due to larger mfma tile size

* chore: add fp4 preshuffleb mode to block scale example

* chore: sanity check for packed types being 1 byte

* chore: clarify tensor dimension indices with constants

* chore: replace traits check with specialized check for packed types

* style: some minor refactoring and cleanup

* fix: correct conversion table for FNUZ fp8

* chore: add fp4 instances to main abquant instances again

* chore: use same initialization branch for int4 and fp4

* chore: add missing initialization for fp4 in block scale gemm example

---------

Co-authored-by: Thomas Ning <Thomas.Ning@amd.com>

[ROCm/composable_kernel commit: 6a6177a246]
2026-01-30 04:40:50 -07:00
Zoltán Lakatos
1b1dd65b83 fix undefined behaviour in softmax kernel (#3683)
Co-authored-by: root <zoltan.lakatos@streamhpc.com>

[ROCm/composable_kernel commit: 565fea2645]
2026-01-30 15:22:54 +08:00
MHYangAMD
c4998f09bd Fix redundant cast in model sensitive rmsnorm (#3681)
* Fix redundant cast

* Fix linting

[ROCm/composable_kernel commit: 6ff0737843]
2026-01-30 10:52:19 +08:00
Enrico Degregori
968e54f90f Multi AB support for wave transfer (#3578)
* Add multi AB support to wave transfer

* Improviments to multi ABD examples

* Add instances and use intrawave v1 instead of interwave

* Apply changes to other transfers

* Wave transfer: add support for multiple internal vgpr buffers

* Fix compilation error gfx11

[ROCm/composable_kernel commit: f16d9100e4]
2026-01-29 10:29:40 -08:00
Johannes Graner
e8bf2e1418 [Conv] Enable bwd weight splitk autodeduction with cap (#3656)
* Enable bwd weight splitk autodeduction with cap

* Fix error threshold calculations

* Add missing logic to wmma multiple d kernel

* Fix threshold calculation

* Update test with new applicability

[ROCm/composable_kernel commit: fabac7e2c3]
2026-01-29 17:40:28 +00:00
Khushbu Agarwal
9fc9cc598f [CK_Tile] Adding support for preshuffleQuant in AB quant Block Scale Gemm (#3629)
* initial commit

* preshuffleQuant support for ABQuant

* fix mxfp4 to use correct QuantGroupSize

* addressing review comments and seperated Preshufflequant for A and B

* updated grouped gemm example for updated traits definition

* fix for CI failure

* updated grouped_gemm_abquant test for updated traits definition

* updated grouped_gemm_abquant test for updated traits definition

[ROCm/composable_kernel commit: 9b168082b7]
2026-01-28 19:45:09 -08:00
Jeff Huang
4fb9c4b82a Optimize batch prefill kernel performance for VECTORIZED_LAYOUT KV cache (#3657)
- Add multi-dimensional page index support (YsGatherDims) in tile_scatter_gather
- Add is_gather_dim() and get_gather_index() for multi-dim page lookup
- Override MakeVDramTileDistribution() for VECTORIZED_LAYOUT to match
  GEMM's BWarpDstrEncoding (K decomposition: {K2, K0, K1})
- Add GetGemmKDecomposition() to retrieve kABKLane and kKPerThread
- Add static_assert for RowMajor VLayout requirement in batch prefill

Co-authored-by: Po Yen Chen <PoYen.Chen@amd.com>

[ROCm/composable_kernel commit: e3556fed04]
2026-01-29 07:18:41 +08:00
Bartłomiej Kocot
017d96faaa Grouped Conv Bwd Weight Direct Load (#3648)
* Grouped Conv Bwd Weight Direct Load

* Update gridwise_gemm_xdl_cshuffle_conv_v3.hpp

* Implement group merging for bwd_weight and add instances

* Link direct load instances

* builder fixes

* fix

* fixes

* fix

---------

Co-authored-by: Graner, Johannes <johannes.graner@amd.com>

[ROCm/composable_kernel commit: 83b58bb0c3]
2026-01-28 15:31:54 -06:00
Robin Voetter
7d1574a9ab [CK_BUILDER] Integrate CKB validation with CK verification (#3649)
* ck-builder: tensor copy function

This function copies one tensor to another, so that the memory
layout can be changed between them.

* ck-builder: fix ck::bhalf literals

These types don't work properly.

* ck-builder: abstract compare_elements in gpu_verification.hpp and make builder use it

This reduces the amount of duplicated code a bit.

* ck-builder: add flat tensor iterator

This "iterator" type pretends to be a pointer, useful for passing
tensors to functions expecting pointer-like types.

* ck-builder: integrate validation with ck gpu verification

By templating the gpu_verify function over iterators, we can use
the new FlatTensorIterator to adapt the function to multi-
dimensional tensors without changing either implementation
too much.

* ck-builder: add check_by_accumulations

This changes the gpu_verification.hpp code to also accept "iterator"
types for the relevant gpu_verify and gpu_reduce_max functions.

* ck: fix test_gpu_verification GenerateRandomData for bhalf

is_integer_it<bhalf_t> yields true, but it is not actually
an integer.

* ck: make gpu_verification kernels be proper persistent kernels

Previously these were using a hardcoded value for the grid size. This
commit changes that so that the grid size is automatically derived
from the kernel's occupancy and the number of multiprocessors on
the GPU.

* ck: clean up gpu_verification.hpp using block_reduce

This implements a small generic block reduce function, and rewrites
the rest of gpu_verification.hpp using that function to clean it up
a bit.

* ck-builder: doc typos

* ck-builder: update testing readme with validation interface.

* ck-builder: rebase fixes + review comments

* ck-builder: fix device integer generation with float types

Passing bfloat here causes a nans due to type_convert performing
a bitcast.

* ck: another bhalf_t bug

CK expects that int-generation with ck::bhalf_t yields bhalf integers,
not unsigned integers. This makes the logic of FillUniformRandInteger
compatible with GeneratorTensor_2<InDataType>, however idiotic that
may be.

[ROCm/composable_kernel commit: 42048bdb7d]
2026-01-28 17:41:02 +01:00
Yi DING
83c5a3b025 [CK_TILE] ABQuant New Preshuffle (#3638)
* Refactor

* Gemm quant improvement

* Change preshuffle

* Fix

* Fix grouped gemm ut

* Fix

---------

Co-authored-by: Thomas Ning <Thomas.Ning@amd.com>

[ROCm/composable_kernel commit: 8e3d84aba3]
2026-01-27 23:46:49 -08:00
damien-lejeune
24d3cbc30d [CK Tile] multi reduce improvements (#3607)
* WIP: refactoring

* Swap operation/data nested loops order

* Improve memory coalescing

* Add comments

* Enforce same identity element for the reduce operations

* Re-add compile time constant

* Comment + re-add __builtin_amdgcn_readfirstlane(0) to the loop init

---------

Co-authored-by: Damien Lejeune <damien.lejeune@amd.com>

[ROCm/composable_kernel commit: 91e32f305f]
2026-01-27 12:56:09 -08:00
linqunAMD
5713c658c6 [ck] add gridwise base class for in all xdl kernel (#186) (#3544)
1. Add base class GridwiseGemm_xdl_cshuffle_base for all gridwise_gemm_xdl classes.
- to select correct LDS layout and epilogue behavior , three additional parameters is added.
- ForceNaiveLdsLayout: disable XOR based LDS layout when it is true
- DirectLoad: pipeline only use directload, we need force naive layout and ignore any padding on gfx9
- IsMxGemm: epilogue has two addtional dimensions
2. Move all LDS descriptor layout related fucntion to base class, including
- GetABlockDescriptor_AK0PerBlock_MPerBlock_AK1
- GetBBlockDescriptor_BK0PerBlock_NPerBlock_BK1
- GetCShuffleBlockDescriptor_MBlock_MPerBlock_NBlock_NPerBlock
3. Move several LDS related helper funtions to base class, including
- GetSharedMemoryNumberOfByte
- GetABlockDescriptor_AKB_AK0PerBlock_MPerBlock_AK1
- GetBBlockDescriptor_BKB_BK0PerBlock_NPerBlock_BK1
- GetCBlockDescriptor_MBlock_NXdlPerWave_MWaveMPerXdl_NBlock_NXdlPerWave_NWaveNPerXdl
4. Move all c epilogue related code to base class, and 4 kind of implementation are provided
- RunEpilogueNoShuffle
- RunEpilogue
- RunMultiDEpilogue
- RunMoeEpilogue

[ROCm/composable_kernel commit: 23cefda140]
2026-01-27 12:49:47 -08:00
Michał Kulikowski
bdc1f4846a [CK]Refactoring threadwise_tensor_slice_transfer_v3r1.hpp (#3263)
Signed-off-by: Michal Kulikowski <Michal.Kulikowski@amd.com>
Co-authored-by: Illia Silin <98187287+illsilin@users.noreply.github.com>

[ROCm/composable_kernel commit: b737f1dee5]
2026-01-27 10:48:16 -08:00
Illia Silin
7dd38d592e fix some syntax errors (#3658)
[ROCm/composable_kernel commit: b26cb596b0]
2026-01-27 09:59:39 -08:00
Max Podkorytov
dbb766d951 Add build time optimization documentation (#3608)
This document describes techniques for reducing C++ template instantiation
overhead in the Composable Kernel codebase, including:

- Replacing recursive templates with pack expansion (O(N) → O(1) depth)
- Using named functors instead of lambdas to share instantiations
- Replacing template recursion with constexpr loops
- Using fold expressions for accumulation operations

These techniques can significantly reduce build times for template-heavy code.

[ROCm/composable_kernel commit: b66597ed96]
2026-01-27 06:07:27 -07:00