Commit Graph
18 Commits
Author SHA1 Message Date
Tong WUandcoderabbitai[bot] 3ab93cd76b [Enhancement] Keep max score attention across blocks in FlashAttention for better numerical stablity (#1269)
* Implement max score retention across blocks in FlashAttention for improved stability

* fix manual pipeline parameters

* Update examples/flash_attention/example_gqa_fwd_varlen.py

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix typo

* more

* fix a previous typo

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
2025-11-17 21:53:19 +08:00
Zhengju Tang eb6e89737c [GQA] Add varlen decoding kernel with logits saving (#1223)
* [Example] Add GQA varlen decoding kernel with logits return

* [Example] Support Sink for GQA varlen decoding

* [Example] Add for no-varlen support

* [Tune] Add high performance logits saving

* [Lint]

* [Lint]

* [Rename]
2025-11-11 15:33:18 +08:00
徐畅 98f93db136 [Bugfix] Remove redundant T.fill to fix precision issue (#667) 2025-07-26 04:18:14 +08:00
e9a608e222 [Bugfix][CI] Bug fixing and migrate CI from ada to hopper (#652)
* fix CI bugs in hopper

* lint fix

* Update bulk_copy.cc

* Refactor bulk copy logic in LowerBulkCopy function

- Removed unnecessary blank lines for improved code readability.
- Enhanced stride validation by checking for null pointers in global stride calculations, ensuring robustness against symbolic strides.
- Updated pass configuration handling in dynamic tile language tests to streamline dynamic alignment and TMA lower pass settings.

* test fix

* ci fix

* Update flash-attention dependencies and clean up example code

- Downgraded `flash-attn` dependency version in `requirements-test.txt` to `<=2.2.0`.
- Removed unused imports and commented-out code in various example files to enhance readability and maintainability.
- Updated the `flashattn` function signature to include default parameters for `block_M`, `block_N`, `num_stages`, and `threads`.
- Cleaned up the `example_mha_fwd_varlen.py` and `example_mha_bwd_wgmma_pipelined.py` files by removing unnecessary comments and improving code clarity.
- Deleted the `example_mha_inference.py` file as it is no longer needed.

* Update CI workflow to remove `--user` flag from pip install commands

- Removed the `--user` flag from the pip install commands in both the development and testing sections of the CI workflow to ensure proper installation of dependencies in the virtual environment.

* Update CI workflow to include `--no-user` flag in pip install commands

- Added the `--no-user` flag to the pip install commands in both the development and testing sections of the CI workflow to ensure dependencies are installed correctly within the virtual environment.

* Update CI workflow to include `--no-user` flag in pip install command for wheel mode

- Added the `--no-user` flag to the pip install command in the wheel mode section of the CI workflow to ensure dependencies are installed correctly within the virtual environment.

* test fix

* avoid conflict with system environments

* test fix

* add commnets

---------

Co-authored-by: Lei Wang <34334180+LeiWang1999@users.noreply.github.com>
Co-authored-by: LeiWang1999 <leiwang1999@outlook.com>
2025-07-23 16:54:03 +08:00
Lei Wang d110d0871c [Refactor] refactor autotune examples (#617)
* [Refactor] Update tilelang kernel functions and remove unused imports

- Refactored the `flashattn_fwd`, `flashattn_bwd_preprocess`, and `flashattn_bwd_postprocess` functions to utilize direct kernel calls instead of cached versions, improving clarity and performance.
- Added `@tilelang.jit` decorators with specified output indices to enhance kernel compilation.
- Removed unused import of `cached` from `tilelang`, streamlining the code.
- Commented out the main testing function call in `test_tilelang_kernel_mha_bwd.py` for potential future use.

* [Refactor] Simplify configuration generation in benchmark and example scripts

- Refactored the `get_configs` functions in multiple benchmark and example scripts to utilize a dictionary-based approach for parameter configuration, improving readability and maintainability.
- Updated the `flashattn` and `chunk_scan_fwd` functions to directly accept configuration parameters, enhancing flexibility in kernel tuning.
- Removed redundant code and streamlined the configuration generation process across various files, ensuring consistency in how configurations are defined and utilized.

* [Refactor] Update configuration handling in benchmark scripts

- Refactored the `get_configs` functions in benchmark scripts to accept a variable argument list, improving flexibility in configuration management.
- Enhanced the `matmul` and `flashattn` functions to utilize the updated configuration approach, streamlining parameter handling for kernel tuning.
- Added `@autotune` decorators to relevant functions, ensuring consistent autotuning behavior across benchmarks.
- Cleaned up redundant code and improved overall readability in the affected files.

* [Refactor] Clean up formatting and update subproject commit

- Updated the subproject commit reference in the TVM directory to indicate a dirty state.
- Removed unnecessary blank lines and improved formatting in the `benchmark_matmul` and `benchmark_matmul_fp8` scripts for better readability.
- Streamlined the function definitions in the `flashattn` example script to enhance clarity and maintainability.

* [Refactor] Update AutoTuner configuration handling

- Modified the AutoTuner class to check if kernel parameters are set before processing tunable arguments, improving robustness in configuration handling.
- Enhanced the logic for skipping compilation when tunable parameters are already provided, ensuring efficient use of resources.
- Updated comments for clarity and maintainability.

* lint fix

* Update TVM subproject commit to indicate dirty state and modify MHA backward test cases

- Updated the subproject commit reference in the TVM directory to reflect a dirty state.
- Adjusted the `test_mha_bwd` function to use a new configuration for the MHA backward tests, changing the context size from 128 to 256.
- Uncommented the main testing function call for potential execution.
2025-07-08 22:06:14 +08:00
Cunxiao NiandLei Wang 3db18726c7 [Example] Update examples to use @tilelang.jit (#597)
* [Example] Update kernel compilation in examples to use @tilelang.jit

- Refactored multiple examples to eliminate the use of `tilelang.compile` for kernel creation, directly invoking the functions instead.
- Added `@tilelang.jit` decorators with appropriate output indices to enhance performance and maintainability.
- Improved code clarity by simplifying the kernel invocation process across various examples, ensuring consistency in how kernels are defined and executed.

* format

* Update example_tilelang_sparse_gqa_decode_varlen_indice.py

* Update example_dequant_gemm_fine_grained.py

* Update example_gemm_autotune.py

---------

Co-authored-by: Lei Wang <34334180+LeiWang1999@users.noreply.github.com>
2025-06-25 23:24:26 +08:00
徐畅 67d0b6777d [BugFix] Fix precision issue in GQA decode when block_N exceeds seqlen/num_split (#575)
* [CI] Add flash_decoding example to CI

* Add output of ref latency

* format example_gqa_decode.py

* [BugFix] Fix precision issue in GQA decode when block_N exceeds seqlen/num_split

* format example_gqa_decode.py
2025-06-16 21:25:47 +08:00
徐畅 7b66fb19c2 [CI] Add flash_decoding example to CI (#487)
* [CI] Add flash_decoding example to CI

* Add output of ref latency

* format example_gqa_decode.py
2025-05-13 13:02:02 +08:00
yyttt6 bfb5b0a3ca [Bugfix] fix the unexpected keyword error of autotune (#438)
* yes

* [Bugfix] fix the unexpected keyword error of autotune

* format

* test
2025-04-26 20:57:31 +08:00
Lei Wang aa85ddc7dd [Doc] Add deepseek_mla to documentation index (#380)
* Add deepseek_mla to documentation index (#380)

* lint fix
2025-04-12 10:48:30 +08:00
Lei Wang 32060ecda2 [Enhancement] Improve flashattn function in example_gqa_decode.py (#329)
- Added a manual seed for reproducibility in PyTorch.
- Refactored local variable allocations for better memory management.
- Enhanced parallel processing in the flashattn function to improve performance.
- Updated layout annotations for clarity and efficiency.

These changes optimize the flash attention mechanism and ensure consistent behavior across runs.
2025-04-04 12:25:13 +08:00
Lei Wang 0fd82ed51f [Bugfix] Fix layout conflict issue for gqa decoding examples (#314)
* Remove logging statement from LoopVectorizerDynamic Substitute method for cleaner output.

* Refactor flashattn example to improve CUDA configuration handling

- Updated the `flashattn` function in `example_gqa_decode.py` to utilize a heuristic configuration based on CUDA device capabilities, enhancing compatibility with different architectures.
- Replaced local variable allocations with more efficient constructs and removed unnecessary logging statements for cleaner output.
- Adjusted the `do_bench` method call to streamline performance profiling.

* lint fix
2025-04-01 01:32:19 +08:00
Lei Wang 66c7f6a13e [Bugfix] Updated autotune usage in the examples to align with the latest changes (#309)
* [Enhancement] Add support for CUDA architecture 8.9 in GEMM template

- Introduced conditional inclusion of "gemm_sm89.h" for CUDA architectures 8.9 and above, enhancing compatibility with newer hardware.
- This change ensures that the GEMM template can leverage optimizations specific to the 8.9 architecture, improving performance for users with compatible GPUs.

* lintfix

* [Refactor] Clean up includes in gemm_sm89.h

- Removed duplicate inclusion of "common.h" and added "cuda_fp8.h" for improved clarity and organization.
- This change enhances the maintainability of the code by ensuring that header files are included only once and in a logical order.

* [Enhancement] Improve KernelCache with in-memory caching and detailed docstrings

- Added an in-memory cache to the KernelCache class to enhance performance by reducing disk access.
- Updated the __new__ method to initialize the memory cache and added logic to check the cache before loading from disk.
- Enhanced docstrings across multiple methods to provide clearer explanations of parameters and return values, improving code readability and maintainability.
- Implemented a clear_cache method to clear both in-memory and disk caches, ensuring efficient cache management.

* lint fix

* typofix

* [Refactor] Update matmul and flashattn function calls to return structured results

- Modified the matmul and flashattn function calls to return a single object containing latency, configuration, and reference latency, improving code clarity and reducing the number of returned variables.
- Updated all relevant instances in benchmark and example scripts to accommodate the new return structure, ensuring consistent usage across the codebase.

* lint fix
2025-03-31 20:56:15 +08:00
Lei Wang bf8a6fc142 [Refactor] Deprecated T.Buffer as arguments and rename related calls into T.Tensor (#281)
* [Refactor] Improve flash attention example and layout comparison logic

- Removed unnecessary annotation for `lse_local_split` in the flash attention example to streamline the code.
- Updated the handling of `lse_local_split` to utilize parallel processing for better performance.
- Refactored kernel compilation and profiling logic to enhance clarity and maintainability in the flash attention example.
- Added a condition in `FragmentNode::IsEqual` to handle broadcast cases, improving the robustness of layout comparisons.

* lint fix

* [Enhancement] Add support for shared memory scope in Fill operation

- Introduced handling for `shared.dyn` and `shared` memory scopes in the Fill operation.
- Implemented parallel operation and layout inference for improved performance in shared memory scenarios.
- Updated thread loop partitioning and vectorization logic to accommodate new memory scope handling.

* [Refactor] Remove deprecated decorator and enhance Cython kernel handling

- Removed the deprecated decorator from the main module and added a new implementation in the utils module for better organization.
- Introduced a pointer map in the Cython kernel adapter to manage pointer arguments, improving runtime shape resolution.
- Updated the Cython kernel wrapper to utilize the new pointer map for handling kernel arguments.
- Enhanced error checking in the tensor utility functions to ensure static shapes are enforced.
- Added a new proxy module for buffer and tensor handling, streamlining the interface for TIR programs.

* [Feature] Add matrix multiplication test and kernel implementation

- Introduced a new test file `test_tilelang_language_ptr.py` that implements a matrix multiplication function using TileLang's primitives.
- The `matmul_test` function defines a kernel for performing tile-level GEMM operations with customizable block sizes and data types.
- Added a `run_matmul` function to compile and execute the kernel, along with a test function to validate the implementation.
- Updated the `proxy.py` file to enhance type handling for buffer and tensor proxies, ensuring compatibility with TIR programs.
- Minor formatting improvements in `deprecated.py` for better readability.

* lint fix

* [Refactor] Update tensor creation in matrix multiplication test

- Replaced `T.Tensor.from_ptr` with `T.make_tensor` in `matmul_test` for improved clarity and consistency.
- Updated imports in `__init__.py` to include `make_tensor`.
- Added `make_tensor` function in `proxy.py` to streamline tensor creation from pointers.

* [Refactor] Update tensor definitions across multiple files

- Replaced instances of `T.Tensor` with updated tensor definitions in various benchmark and example files to enhance consistency and clarity.
- Adjusted tensor shapes and types in functions related to matrix multiplication, attention mechanisms, and other operations.
- Improved documentation in README and example files to reflect changes in tensor usage.

* lint fix

* [Refactor] Update tensor types in attention and matrix multiplication examples

- Replaced instances of `T.Tensor` with `T.SharedTensor` and `T.FragmentTensor` in various attention and matrix multiplication functions to improve consistency and clarity.
- Adjusted tensor definitions in benchmark and example files to align with the new tensor types.
- Enhanced the overall structure and readability of the code by standardizing tensor usage across multiple files.

* lint fix

* [Refactor] Update tensor types in GEMM example and test files

- Replaced instances of `T.Tensor` with `T.LocalTensor` and `T.Buffer` in the GEMM example and related test functions to improve consistency and clarity.
- Enhanced the overall structure of the code by standardizing tensor usage across multiple files, aligning with recent updates in tensor definitions.

* [Refactor] Update tensor usage in customize.py

- Replaced instances of `T.Tensor` with `T.Buffer` in the `reshape` and `view` functions to enhance consistency with recent tensor definitions.
- Improved code clarity by standardizing buffer usage across the file.

* [Refactor] Update tensor types in test_tilelang_transform_annotate_device_regions.py

- Replaced instances of `T.Tensor` with `T.Buffer` in the `before` and `expected` methods of the `TestAnnotateThreadExtent` and `TestAnnotateDeviceScope` classes to enhance consistency with recent tensor definitions.
- Improved code clarity by standardizing buffer usage across the test file.

* [Refactor] Update tensor types to SharedBuffer and FragmentBuffer

- Replaced instances of `T.SharedTensor` and `T.FragmentTensor` with `T.SharedBuffer` and `T.FragmentBuffer` across multiple benchmark, example, and test files to enhance consistency with recent tensor definitions.
- Improved code clarity and structure by standardizing buffer usage in attention and matrix multiplication functions.

* [Refactor] Introduce Tensor alias for Buffer in proxy.py

- Added a new alias `Tensor` for `Buffer` in `proxy.py` to facilitate JIT compilation, ensuring that inputs and outputs are mapped with `torch.Tensor`.
- This change enhances clarity and consistency in tensor usage across the codebase.
2025-03-26 13:42:52 +08:00
Chaofan LinandLeiWang1999 0430cfe7fb [Bugfix] Fix Benchmark/Example Code for Autotuning (#254)
* fix tune args

* lint

* Refactor gemm example and autotuner logging

- Updated `ref_program` in `example_gemm.py` to return the result of matrix multiplication instead of modifying an input parameter.
- Changed logging filename in `__init__.py` from 'out.log' to 'autotuner.log' for better clarity.
- Modified JIT kernel compilation process to include `out_idx` directly in the adapter creation, enhancing flexibility.
- Improved validation of `result_idx` in `BaseKernelAdapter` to ensure it falls within valid bounds.

* Refactor `ref_program` in `benchmark_matmul_intrinsic.py` to use the `@` operator for matrix multiplication instead of `torch.matmul`, simplifying the implementation by removing the unused parameter `C`.

---------

Co-authored-by: LeiWang1999 <leiwang1999@outlook.com>
2025-03-23 00:36:48 +08:00
Yu Cheng 3d7b2dc54c [Dev][Doc] Enhance Flash Attention Implementation in GQA Decoding Example and Fix Typo (#139)
- Add non-split flash attention macro for more flexible kernel generation
- Implement `main_no_split` function to handle single-split scenarios
- Modify kernel selection logic to dynamically choose between split and non-split implementations
2025-03-04 20:10:41 +08:00
Lei WangandUbuntu 7b74bb0128 [JIT] Enhance cython/ctypes wrapper for tma descriptor (#126)
* refactor code

* enhance tutorial

* Enhance error handling and code generation in CUDA and TileLang components

This commit introduces several improvements across multiple files:
- Added more informative error messages in GEMM layout checks
- Updated CUDA codegen to support more flexible function signature generation
- Improved TMA descriptor initialization and kernel dispatch logic
- Refined library generation and source code parsing utilities
- Enhanced error handling in various adapter and wrapper classes

* Add thread tag validation for warp specialization

Introduce a ThreadTagChecker to validate that a PrimFunc only uses threadIdx.x before applying warp specialization. This prevents unintended transformations on kernels with complex thread binding and provides a clear warning to users about potential issues with warp specialization.

* Update TileLang Profiling and Compilation in Flash Decoding Examples

Refactor the profiling and compilation workflow in two flash decoding example scripts:
- Replace `tilelang.lower()` and `tilelang.Profiler()` with `tilelang.compile()`
- Simplify profiler initialization using `get_profiler()`
- Update method calls to use the new profiler and compiled kernel objects
- Maintain existing performance benchmarking and validation logic

* Refactor and clean up code formatting in TileLang testing and adapter modules

This commit includes several code style and formatting improvements:
- Adjust whitespace and line breaks in test files
- Improve code formatting in CUDA source wrapper and adapter utilities
- Enhance readability of function calls and argument handling
- Remove unnecessary whitespace and standardize indentation
- Simplify function signatures and argument parsing

* Refactor CUDA codegen and improve code formatting

This commit includes several improvements to CUDA code generation and formatting:
- Enhance function signature generation in CodeGenTileLangCUDA
- Improve code formatting and readability in CUDA-related files
- Simplify parameter handling and type annotations
- Clean up whitespace and line breaks in codegen and layout files

---------

Co-authored-by: Ubuntu <dlisuser@h100testl730RPS.xu5snccwrbtejcqqalluoku5hb.xx.internal.cloudapp.net>
2025-02-27 23:15:14 +08:00
Yu Cheng 40faabb1f2 [Dev] Add MLA and GQA decode examples (#109)
* [CI][Test] Add test cases for tilelang transform MultiVersionBuffer and WarpSpecialized

* Relax the mismatch ratio restrictions in the flash_linear_attention and mha tests

* [Dev] Add mha backward example

* [Dev] Add mla decode example

* bug fix

* Add triton impl

* Add gqa decode example

* [Dev] Add GQA decode example

* lint

* delete unused triton example

* set default profiler to 'auto'
2025-02-24 00:23:28 +08:00