GitLab

[BugFix] Do not modify strict layout in common or relax level of layout inference. More conditions on layout checking (#653)

* [BugFix] Do not modify strict layout in common or relax level of layout inference. More conditions on layout checking

* Lint

* test fix

* Update CI workflow to install dependencies without user site packages

- Modified the installation commands in the CI workflow to include the `--no-user` flag for both `requirements-dev.txt` and `requirements-test.txt`, ensuring that packages are installed in the virtual environment rather than the user site directory.

* Update CI workflow to install pip without user site packages

- Added the `--no-user` flag to the pip installation command in the CI workflow for both development and testing dependencies, ensuring that packages are installed within the virtual environment.

* Update requirements-test.txt

* reduce ci problem size,

* Refactor example_mla_decode.py for consistent formatting and remove unused imports in test_example_mla_decode.py

---------
Co-authored-by: LeiWang1999 <leiwang1999@outlook.com>
Co-authored-by: Lei Wang <34334180+LeiWang1999@users.noreply.github.com>

* [Enhancement] Improve memory access condition checks in GlobalMemChecker

- Updated the condition checks in the GlobalMemChecker to utilize symbolic bounds in the CanProve method, enhancing the accuracy of memory access validations.
- This change ensures that both upper and lower bound conditions are evaluated with improved proof strength, contributing to more robust memory access analysis.

* lintfix

* [Enhancement] Add legality checks for shared memory and global range in LowerBulkCopy

- Implemented checks to ensure that the shared memory range and global range are legal during the bulk copy operation.
- Added assertions to validate that the extents of global and shared ranges match, improving the robustness of memory access validation in the LowerBulkCopy function.

* [Refactor] Update barrier and clear operations in warp specialization examples

- Replaced `mbarrier_wait_parity` and `mbarrier_arrive` with `barrier_wait` and `barrier_arrive` for improved clarity and consistency in synchronization.
- Adjusted the order of `clear` operations for local fragments in `example_warp_specialize_gemm_copy_1_gemm_0` to enhance parallel execution efficiency.

* [Enhancement] Implement thread partial synchronization and improve shared memory allocation handling

- Added support for thread partial barrier synchronization in CUDA, allowing for more flexible thread management.
- Enhanced the `MergeSharedMemoryAllocations` function to accept alignment bytes, improving memory allocation efficiency based on target requirements.
- Updated the `Lower` methods in `Copy` and `Fill` classes to include conditional predicates for thread execution, ensuring better control over thread behavior.
- Refactored the `print` function to include warp group and warp IDs for more detailed debugging output.
- Improved the handling of dynamic shared memory allocations in the `LowerAndLegalize` function to align with target-specific requirements.

* [Enhancement] Add support for disabling TMA in Copy operations

- Introduced a new `disable_tma` parameter in the `Copy` class to control thread memory access behavior.
- Updated the `Lower` method to conditionally execute bulk copy operations based on the `disable_tma` flag.
- Enhanced the `copy` function to accept the `disable_tma` argument, allowing for more flexible memory copy operations.
- Improved handling of `coalesced_width` to ensure it defaults to -1 when not provided, enhancing robustness in memory operations.

* [Refactor] Clean up whitespace and formatting in multiple files

- Removed unnecessary blank lines and adjusted line breaks for improved code readability in `example_mla_decode.py`, `example_warp_specialize_gemm_copy_gemm_0_1.py`, `phase.py`, and `copy.py`.
- Ensured consistent formatting across functions to enhance maintainability and clarity of the codebase.

* [Enhancement] Refactor flash attention implementation for improved performance and configurability

- Split the shared memory allocations for query and key-value pairs to optimize memory usage.
- Introduced command-line arguments for batch size, number of heads, and dimensions, enhancing flexibility in running the example.
- Updated kernel execution parameters to improve thread management and synchronization.
- Enhanced the overall structure of the flash attention function for better readability and maintainability.

* fix

* Update layout inference in ParallelOp to account for thread bounds; remove debug print in OptimizeForTarget

* Refactor barrier handling and update example configurations

- Replaced commented-out barrier creation with new barrier allocation in GEMM example.
- Updated kernel configuration in warp specialization example to include async copy settings.
- Enhanced barrier management in the phase optimization process to improve synchronization handling.
- Introduced new barrier allocation function for better memory management in shared contexts.

* Refactor barrier handling in LowerAndLegalize and OptimizeForTarget

- Reintroduced barrier lowering in OptimizeForTarget to enhance synchronization.
- Removed commented-out barrier lowering in LowerAndLegalize for cleaner code.
- Added exit() call in OptimizeForTarget to halt execution after barrier lowering.

* Enhance CMake configuration and clean up example scripts

- Enabled compile command export in CMakeLists.txt for better build integration.
- Removed unnecessary print statement in the warp specialization example.
- Cleaned up commented-out code in GEMM example for improved readability.
- Updated barrier handling in shared memory allocation transformations for better synchronization.

* Refactor barrier handling in warp specialization examples

- Replaced commented-out mbarrier code with new barrier allocation using T.alloc_barrier for improved synchronization.
- Updated barrier wait and arrive calls to align with the new allocation method across multiple example scripts.
- Enhanced code readability by removing unnecessary comments and ensuring consistent barrier management.

* Update lower_shared_barrier.cc

* Update phase.py

* Update warp specialization example and Cython wrapper

- Removed commented-out pass configuration options in the warp specialization example for clarity.
- Added functionality to write the generated kernel source to a file named "kernel.cu".
- Enhanced Cython wrapper to support boolean type conversion for improved type handling.

* Add storage synchronization call in shared barrier transformation

- Introduced a new evaluation statement to call the TVM storage sync function with "shared" as an argument, enhancing synchronization in the shared barrier handling process.

* remove debug files

* Remove kernel source output to file in warp specialization example

* remove comments

* Refactor tensor handling and update test execution in TileLang

- Changed `Buffer` to `Tensor` in `customize.py` for better type consistency.
- Updated `mbarrier_wait_parity` and `mbarrier_arrive` functions in `builtin.py` to use `tir.BufferLoad` instead of `BufferLoad`.
- Commented out the main testing function in `test_tilelang_language_reshape.py` and replaced it with a direct call to `run_reshape_smem` for streamlined testing.
- Removed unnecessary NVCC compiler flags in `libgen.py` to reduce verbosity.

* Update test_tilelang_language_reshape.py

[Dev] Update benchmark and decoding scripts to refine condition checks and optimize tensor operations (#637)

- Enhanced the condition in `compare_ab` to ensure baseline checks align with target exclusions.
- Removed unnecessary tensor allocation in `mla_decode_tilelang`, optimizing memory usage and improving performance by directly using shared tensors in GEMM operations.

* [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>

* [Feature] Added Support for Synchronizing Grids and Persistent Threadblock Transformation

- Defined the sync_grid operation in builtin.cc and builtin.h, allowing synchronization of all threads within a grid.
- Implemented support for sync_grid in codegen_cuda.cc, ensuring proper handling of this operation in the generated CUDA code.
- Added the PersistThreadblock transformation, enabling the conversion of thread blocks to persistent thread blocks, enhancing support for persistent kernels.
- Updated relevant documentation and comments to reflect the addition of new features and usage instructions.

* [Example] Add MLA Decode With Persistent Threadblock Example

* [Feature] Introduce Persistent Loop and Update GEMM Example

- Added a new persistent loop construct in the TIR framework, enabling more efficient kernel execution.
- Updated the GEMM example to utilize the new persistent primitive, enhancing performance for matrix multiplication.
- Introduced a `loop_break` intrinsic for better control flow within persistent loops.
- Updated relevant files to support the new features, including changes in code generation and language interface.

* lint fix

* [Enhancement] Add support for FP8 types in CUDA and HIP code generation

* Updated `GetFP8Type` function in `codegen_cuda.cc` and `codegen_hip.cc` to handle new FP8 types, including `kFloat8_e4m3fnuz`.
* Introduced a new header file `hip_fp8.h` for FP8 type definitions in HIP.
* Modified type mappings in `dlpack.py` and `mfma_macro_generator.py` to accommodate new FP8 types.
* Enhanced type handling in `TLHIPSourceWrapper` and `tensor.py` for better integration with FP8 types.
* Added necessary includes and logic to support FP8 in the code generation process, improving performance and compatibility with FP8 data types.

* lint fix

* Update src/target/codegen_hip.cc
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Update tilelang/intrinsics/mfma_macro_generator.py
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* workaround

* fix

* Update submodule TVM to latest commit 587028ffebfff0ded520f8f90d62f0f6b165906c

* bug fix

* Refactor tilelang matrix multiplication to support transposition and packing options. Adjusted shared memory shapes and loading logic for A and B matrices. Updated test cases to validate new functionality.

* Refactor assertion function for tilelang matrix multiplication to improve readability by formatting parameters and aligning code. Cleaned up whitespace in intrinsic layout functions for consistency.

* Update bfloat16 type definitions in common.h and gemm.h for consistency. Changed __hip_bfloat16 to hip_bfloat16 and updated MfmaTraits specialization accordingly.

* lint fix

---------
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* [Enhancement] Add commit ID to versioning and improve logging initialization

* Updated `get_tilelang_version` to include an optional commit ID in the version string.
* Enhanced the `TileLangBuilPydCommand` to write the version with commit ID to the VERSION file during the build process.
* Introduced a new function `get_git_commit_id` in `version.py` to retrieve the current git commit hash.
* Refactored logger initialization in `autotuner/__init__.py` to ensure handlers are set up only once, improving performance and clarity.
* Minor fixes in `flatten_buffer.cc` and `kernel_cache.py` for better handling of versioning and logging.

* [Refactor] Enhance AutoTuner and JITKernel for improved performance and caching

* Refactored the AutoTuner class to include new methods for setting compilation and profiling arguments, enhancing configurability.
* Introduced caching mechanisms for tuning results, allowing for faster retrieval of previously computed configurations.
* Updated JITKernel to store tuning results, including latency and configuration details, improving the kernel's performance tracking.
* Added new methods for generating cache keys and saving/loading results to/from disk, streamlining the tuning process.
* Enhanced the overall structure and readability of the autotuning logic, ensuring better maintainability and clarity.
* Minor adjustments in related modules to support the new caching and profiling features.

* [Refactor] Clean up code formatting and improve readability in AutoTuner and related modules

* Consolidated import statements and removed unnecessary line breaks for better readability.
* Standardized function argument formatting across the AutoTuner and CompileArgs classes.
* Enhanced consistency in the use of whitespace and indentation throughout the codebase.
* Minor adjustments in the Profiler and JITKernel classes to improve clarity and maintainability.
* Ensured that all changes adhere to the project's coding style guidelines.

* [Refactor] Remove redundant type hints in AutoTuner modules

* Simplified import statements in `__init__.py` and `param.py` by removing unnecessary duplicate type hints for `Any`.
* Improved code readability and maintainability by streamlining type imports across the AutoTuner module.

* [Refactor] Update AutoTuner configuration for improved profiling and target detection

* Enhanced the AutoTuner configuration across multiple examples by adding `set_profile_args` to better manage profiling settings.
* Standardized the use of `target="auto"` in compile arguments to ensure automatic target detection.
* Removed redundant target specifications in certain instances to streamline the configuration process.
* Improved overall clarity and maintainability of the autotuning logic in various example scripts.

* [Refactor] Simplify code formatting and improve readability in example scripts

* Consolidated function argument formatting in `benchmark_mla_decode_amd_tilelang.py`, `example_elementwise_add.py`, and `performance.py` for better clarity.
* Removed unnecessary line breaks and standardized argument placement across multiple files.
* Enhanced overall code readability and maintainability in autotuning examples and performance scripts.

* [Refactor] Update JIT decorator usage across multiple files

* Removed redundant parameters from the JIT decorator in various benchmark and example scripts, simplifying the code.
* Standardized the import of the JIT decorator from `tilelang`, enhancing consistency across the codebase.
* Improved overall readability and maintainability by consolidating import statements and cleaning up function definitions.

* [Refactor] Standardize JIT decorator formatting across benchmark and example scripts

* Simplified the formatting of the JIT decorator in multiple files by removing unnecessary line breaks.
* Enhanced code readability and consistency in the usage of the JIT decorator across benchmark and example scripts.
* Improved overall maintainability by ensuring uniformity in function definitions and decorator usage.

* Remove debug print statement from block_sparse_attn_triton.py and implement a timeout handler in autotuner for function execution. This enhances the robustness of the autotuner by allowing it to handle timeouts gracefully.

* Enhance the autotuner module by adding a timeout handler for function execution, improving robustness in handling long-running tasks. This change includes the introduction of a custom TimeoutException and updates to the run_with_timeout function for better signal management.

* Add merge shared memory allocations pass and related configurations

- Introduced a new pass for merging shared memory allocations in GPU kernels, allowing for more efficient memory usage.
- Registered configuration options for debugging and controlling the merging behavior.
- Updated relevant files to integrate the new pass into the TileLang engine and transform modules.
- Adjusted import paths and added documentation for the new functionality.

* Reduce num_stages parameter in GEMM functions from 3 to 1 for improved performance in test_tilelang_kernel_gemm.py

* Update Copy type in OperandTraits for GEMM templates to use conditional selection based on num_warp_n. This change enhances memory access patterns for different configurations in CUDA kernels.

* lint fix

* [Refactor] Update example_mla_decode.py and add tests for block_sparse_attn_tilelang

* Refactor example_mla_decode.py to define a main function for better structure and clarity.
* Introduce test_example_mla_decode.py to validate the functionality of example_mla_decode.
* Refactor block_sparse_attn_tilelang.py to define a main function and add test_block_sparse_attn_tilelang.py for testing.
* Ensure all new test files are integrated with tilelang testing framework.

* [Test] Enhance test_example_mla_decode with argument mocking

* Update test_example_mla_decode.py to mock sys.argv for better test isolation.
* Ensure the main function of example_mla_decode is called with the correct arguments during testing.

* [Refactor] Update KernelLaunch to clarify CPU and GPU kernel launch logic

* Added comments to distinguish between CPU and GPU kernel launch sections for better code readability.
* Changed the creation of empty blocks to use a consistent "root" identifier, enhancing clarity in frame management.

* [Refactor] Rename operations for consistency in lower_hopper_intrin and related files

* Updated function names from CamelCase to snake_case for better consistency across the codebase.
* Refactored calls to `CreateTMADescriptorOp`, `CreateListofMBarrierOp`, and similar functions to their new names: `create_tma_descriptor`, `create_list_of_mbarrier`, etc.
* Adjusted corresponding test cases to reflect these changes, ensuring compatibility with the new naming conventions.

* [Refactor] Rename operations to snake_case for consistency

* Updated function names from CamelCase to snake_case across various files, including `CreateTMADescriptorOp` to `create_tma_descriptor`, `GetMBarrierOp` to `get_mbarrier`, and others.
* Adjusted corresponding calls and definitions in the codebase to reflect these naming changes, ensuring uniformity and improved readability.
* Enhanced layout inference and loop partitioning logic to accommodate the new naming conventions.

* [Feature] Introduce Warp Specialization and Eliminate Storage Sync for MBarrier

* Added a new example `gemm_ws.py` demonstrating matrix multiplication with warp specialization using TileLang.
* Implemented `WarpSpecializeFrame` and `WarpSpecialize` functionality to manage warp group indices in TIR frames.
* Introduced `EliminateStorageSyncForMBarrier` transformation to optimize storage synchronization in mbarrier regions.
* Enhanced the TileLang API with new methods for retrieving block and thread extents.
* Updated the `LowerAndLegalize` and `OptimizeForTarget` functions to incorporate the new transformation.
* Improved layout inference and kernel launch logic for better performance and clarity.

* [Refactor] Clean up code formatting and improve readability

* Added blank lines for better separation of code blocks in `gemm_ws.py`, `phase.py`, `kernel.py`, and `warpgroup.py`.
* Reformatted the `tilelang.compile` call in `gemm_ws.py` for improved clarity.
* Updated comments in `warpgroup.py` to clarify the availability of the `WarpSpecialize` function for NVIDIA GPUs.
* Ensured consistent spacing and formatting across multiple files to enhance overall code readability.

* lint fix

* [Refactor] Update mbarrier functions for improved clarity and consistency

* Refactored `mbarrier_wait_parity` and `mbarrier_arrive` functions in `builtin.py` to accept explicit parameters for better readability.
* Updated calls in `gemm_ws.py` to use the new function signatures, enhancing code clarity.
* Adjusted `warpgroup.py` to remove unused thread extent variable, streamlining the code.
* Added detailed docstrings to clarify usage examples for memory barrier functions.

* Added blank lines in `mbarrier_wait_parity` and `mbarrier_arrive` functions in `builtin.py` for improved code readability and separation of logical sections.

* [New Feature] Add FP8 Flash Attention Implementation (#412)

* Introduce a new example script for FP8 Flash Attention in `example_mla_decode_kv_fp8.py`, showcasing the use of tilelang for efficient attention computation.
* Implement the `flashattn` function with optimized memory management and kernel execution.
* Include a reference program for comparison and performance evaluation.
* Add command-line argument parsing for batch size, number of heads, and dimensions to facilitate testing and experimentation.
* Enhance the overall structure and readability of the code.

This addition aims to improve the performance of attention mechanisms in deep learning models by leveraging FP8 precision and optimized kernel execution.

* lint fix

* optimize quick start

* lint fix

* Update README.md for deepseek_mla: Refine performance comparison details and add acknowledgment section. Adjusted performance metrics for TileLang, highlighting its efficiency over Triton and assembly kernels. Included gratitude to the AMD ROCm team for their contributions.

* Update README.md for deepseek_mla: Clarify performance metrics for TileLang, specifying the range of performance parity with hand-optimized assembly kernels. This adjustment enhances the accuracy of the comparative analysis against Triton implementations.

* [Add] Introduce deepseek_mla documentation for high-performance FlashMLA with TileLang

- Added a comprehensive guide on writing high-performance kernels using TileLang, focusing on the Multi-Head Latent Attention (MLA) mechanism.
- Included benchmark results comparing FlashMLA, TileLang, Torch, Triton, and FlashInfer, highlighting TileLang's efficiency and ease of use.
- Detailed implementation strategies, including layout inference, threadblock swizzling, shared memory swizzling, and warp specialization.
- Provided examples and explanations of optimization techniques to enhance performance in GPU kernel programming.

* doc update

* [Add] Enhance AMD FlashMLA implementation and documentation

- Refactored variable names in `benchmark_mla_decode_amd_tilelang.py` for clarity, changing `Q_shared` and `Q_pe_shared` to `Q_local` and `Q_pe_local` to reflect their usage in register allocation.
- Added a new `README.md` detailing the high-performance FlashMLA implementation on AMD MI300X accelerators, including architectural considerations, optimization strategies, and performance evaluation.
- Introduced a performance comparison figure to illustrate the efficiency of the TileLang implementation against other frameworks.

* lint fix

* [Add] Expand deepseek_mla documentation for AMD MI300X optimization strategies

- Introduced a new section detailing architectural differences and optimization strategies for implementing FlashMLA on AMD MI300X accelerators.
- Highlighted key considerations such as instruction set variations, shared memory constraints, tile size flexibility, and memory bank conflict swizzling.
- Included performance evaluation results demonstrating TileLang's efficiency compared to other frameworks.
- Discussed future optimization opportunities for memory bank conflict mitigation and dimension parallelization.

* [Add] Introduce benchmark scripts for MLA decoding with AMD support

- Added three new benchmark scripts: `benchmark_mla_decode_amd_tilelang.py`, `benchmark_mla_decode_amd_torch.py`, and `benchmark_mla_decode_amd_triton.py` to evaluate the performance of the MLA decoding mechanism across different frameworks.
- Each script includes implementations for attention calculation, performance profiling, and output validation against reference implementations.
- Enhanced command-line argument parsing for customizable input parameters, including batch size, number of heads, and dimensions.
- Integrated performance comparison functionality to facilitate benchmarking between different implementations.

* lint fix

* lint fix

---------
Co-authored-by: Zhiwen Mo <zhiwen.mo25@ic.ac.uk>

* [Bugfix] Correct dynamic shared memory size error handling in HIP wrapper

- Updated the error handling logic in `PREDEF_ATTRIBUTE_SET_DYNAMIC_MEMORY_HIP` to check if the dynamic shared memory size exceeds the maximum limit of 65536.
- Improved error message clarity by specifying the function name and the attempted size, ensuring better debugging information.
- Ensured the function returns 0 upon successful setting of the dynamic shared memory size.

* [Add] Implement example for MLA decoding with AMD support

- Introduced a new example script `example_mla_decode_amd.py` demonstrating the use of the flash attention mechanism with AMD hardware.
- Implemented functions for attention calculation, including support for split processing and combining outputs.
- Added command-line argument parsing for customizable input parameters such as batch size, number of heads, and dimensions.
- Included a reference implementation for validation against the Tile-AI output, ensuring correctness of the implementation.
- Enhanced performance profiling and output comparison for debugging and optimization purposes.

* lint fix

* [Refactor] Update import structure in benchmark_mla.py

- Moved the import of `flash_mla` functions to the `run_flash_mla` function for better encapsulation.
- Added a comment for `flashinfer` installation to clarify dependencies.
- Cleaned up unused imports to enhance code readability.

* lint fix

* [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.

* remove llvm build

* [Refactor] Update kernel compilation and profiling in examples

- Replaced `tilelang.lower` with `tilelang.compile` in multiple example scripts to streamline kernel compilation.
- Updated profiling calls to utilize the new `get_profiler` method, enhancing performance measurement consistency.
- Adjusted assertions and benchmarking methods to align with the new profiling structure across various examples, ensuring correctness and clarity in performance evaluations.

* lint fix

* License Update

* [Refactor] Improve code formatting and documentation in CUDA header and HIP runtime files

- Adjusted formatting in `cuda.h` for better readability, including alignment of comments and struct fields.
- Cleaned up whitespace and improved comment clarity in `rt_mod_hip.cc` to enhance code maintainability.

* [Refactor] Enhance formatting and clarity in CUDA header and HIP runtime files

- Improved comment alignment and readability in `cuda.h`.
- Cleaned up whitespace and formatting in `rt_mod_hip.cc` to enhance maintainability.

* lint fix

* lint fix

* lint fix

* lint fix

* fix

* License update

* [Enhancement] Update JITKernel to use artifact for kernel source

- Assigned the generated artifact to `self.artifact` for better management.
- Updated kernel source references to use `artifact.kernel_source` for consistency in execution backend handling.

* lint fix

* Add @tilelang.testing.requires_llvm decorator to vectorization tests

* Enhance setup.py and env.py for library management

- Added functionality to remove original files after copying in CMakeBuild.
- Updated TVM_LIBRARY_PATH in env.py to include the PyPI build library path for better integration.

* Refactor TVM_LIBRARY_PATH assignment for improved readability in env.py

* Refactor CMakeBuild file handling in setup.py

- Added a check to ensure the target library directory exists before copying .so files.
- Improved the logic for creating the target directory and copying files to enhance robustness.

* bugfix

* Rename BuildTLDebug to BuildTileLangCUDAWithoutCompile and update registration. Add @tilelang.testing.requires_llvm decorator to multiple tests for LLVM requirement.

* lint fix

* Enhance TileLang code generation by adding support for device code generation without compilation. Updated `host_codegen` and `device_codegen` functions to include new transformations and registration for `tilelang_hip_without_compile`. Refactored JIT kernel adapters to accommodate host and device modules, improving overall integration and flexibility.

* lint fix

* Add support for C target in device code generation

- Updated `device_codegen_without_compile` to include handling for the C target by registering the `tilelang_cpp` function.

* [Enhancement] Implement auto-clear cache feature based on environment variable

* Added TILELANG_CLEAR_CACHE environment variable to control cache clearing.
* Updated CI workflow to set TILELANG_CLEAR_CACHE during testing.
* Modified cache initialization to clear cache if TILELANG_CLEAR_CACHE is set to true.

* [Refactor] Update kernel invocation and import paths in tests and cache

* Changed kernel invocation in `test_tilelang_kernel_dequantize_gemm.py` to return the result.
* Updated import statements in `test_tilelang_kernel_int4_gemm_mma.py` to use `bitblas` instead of `tilelang`.
* Refactored paths for artifact and parameters in `kernel_cache.py` for better maintainability.

* [Refactor] Clean up whitespace and improve code formatting in kernel_cache.py

* Removed unnecessary blank lines and adjusted spacing for better readability in the KernelCache class.
* Enhanced overall code formatting to align with project standards.

* [Enhancement] Add bfloat16 test case and improve kernel caching logic

* Introduced a new test case for bfloat16 matrix multiplication in `test_tilelang_kernel_gemm_mma_intrinsic.py`.
* Updated `KernelCache` to handle multiple kernel source files and improve error handling during saving and loading.
* Refactored `JITKernel` to support instantiation from a database, enhancing flexibility in kernel management.
* Adjusted `CtypesKernelAdapter` and `CythonKernelAdapter` to utilize the new kernel loading mechanism from the database.
* Improved code formatting and readability across several files.

* lint fix

* Update bfloat16 matrix multiplication test case to use larger dimensions for improved coverage

- Replaced instances of `tilelang.lower` and `tilelang.Profiler` with `tilelang.compile` and the new profiler interface in multiple example files.
- Enhanced the kernel compilation process to utilize the updated API, improving consistency and maintainability.
- Adjusted benchmarking logic to use the new profiler methods for better clarity and functionality in performance testing.
- Cleaned up whitespace and improved formatting for better readability across the modified files.

It's slightly faster than T.copy then RS-GEMM, and simpler.

Simplify the control flow in the MLA decode kernel by replacing TileLang's T.If construct with a standard Python if statement. This change improves code readability and maintains the existing logic for handling sequence length constraints during block-wise computation.

* [Dev] Adjust computation logic to avoid precision loss when casting acc_s from float to float16

- Remove redundant `acc_s_0` fragment in flash attention kernel
- Simplify memory copy and reduction operations
- Reorder memory copy and scaling steps for improved performance
- Add Hopper-specific synchronization method in CUDA reduce template
- Update reduce operation to use architecture-specific synchronization

* [Dev] Add DeepSeek MLA Decoding (Paged+Varlen) kernel and Performance Benchmark Script

- Implement comprehensive MLA (Multi-Head Latent Attention) decoding benchmark script
- Add support for multiple implementations: Torch, TileLang, FlashMLA, FlashInfer, and Triton
- Create flexible configuration for benchmarking different batch sizes, sequence lengths, and head configurations
- Implement performance comparison and CSV output for detailed performance analysis
- Add command-line argument support for targeted benchmarking and comparison

* [Dev] Refactor MLA Paged Decoding Kernel with Improved Block Handling and Precision

- Replace `d` parameter with `dv` to clarify value dimension in MLA decoding
- Enhance block distribution logic for split KV processing
- Improve handling of remaining blocks in split KV computation
- Add initialization of `lse_max_local` to prevent potential precision issues
- Optimize block start and range calculations for more accurate sequence processing

* lint

[Dev] Adjust computation logic to avoid precision loss when casting acc_s from float to float16 (#141)

- Remove redundant `acc_s_0` fragment in flash attention kernel
- Simplify memory copy and reduction operations
- Reorder memory copy and scaling steps for improved performance
- Add Hopper-specific synchronization method in CUDA reduce template
- Update reduce operation to use architecture-specific synchronization

- 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

- Update news and MLA performance benchmark in README.md
- Move performance benchmark and layout images to a dedicated 'figures' directory
- Improve code formatting and image references in documentation

* [Dev] Add RetNet Linear Attention example

* [Dev] Add WgmmaSync rewriter for pipelined WGMMA operations and add MHA WGMMA pipelined example (FA3-like scheduling)

This commit introduces a new transformation pass `RewriteWgmmaSync` to optimize warp group matrix multiply accumulate (WGMMA) operations in the TileLang compiler:

- Implemented `WgmmaSyncRewriter` in `src/transform/wgmma_sync_rewriter.cc`
- Added pass registration for `RewriteWgmmaSync`
- Updated `tilelang/engine/phase.py` to include the new transformation pass
- Updated `tilelang/transform/__init__.py` to expose the new pass

The rewriter intelligently manages synchronization and dependencies between WGMMA operations, improving pipeline efficiency for complex matrix multiplication kernels.

* [Bugfix] Fix bug in ThreadTagChecker for warp specialization

Improve thread tag validation in warp specialized rewriter to prevent unintended transformations:
- Add more precise checks for threadIdx.y and threadIdx.z
- Validate thread extent to ensure only single-extent thread bindings are allowed
- Prevent warp specialization for multi-extent thread bindings in y and z dimensions

* lint

* [CI] Add TMA descriptor attribute to transformed module in test case

* [Dev] Refactor DeepSeek MLA Decode Example with Non-Split and Split Flash Attention Implementations

- Add new `flash_attn` macro for non-split flash attention implementation
- Add swizzled layout for tile in shared memory
- Use threadblock swizzle to imporve L2 cache hit rate

* [Dev] Add DeepSeek MLA Decode Example with Documentation and Performance Benchmarks

- Add detailed README.md explaining MLA (Multi-Head Latent Attention) implementation
- Include performance benchmark images for batch sizes 64 and 128
- Add layout visualization images for QK and PV operations
- Implement torch reference implementations in torch_refs.py
- Update example_mla_decode.py with command-line argument support and flexible configuration
- Add performance benchmarking and comparison with other implementations

* Add DeepSeek MLA decode example with Flash Attention implementation

* Add GEMM SplitK and StreamK example implementations

This commit introduces two new example scripts demonstrating advanced GEMM (matrix multiplication) techniques:
- `example_tilelang_gemm_splitk.py`: Implements a Split-K GEMM kernel using TileLang
- `example_tilelang_gemm_streamk.py`: Implements a Stream-K GEMM kernel using TileLang

Both examples showcase different parallel computation strategies for matrix multiplication, with comprehensive testing using PyTorch reference implementations.

* Refactor GEMM SplitK and StreamK example implementations

Clean up and improve code formatting for the SplitK and StreamK GEMM example scripts:
- Remove unused import (Profiler) in splitk example
- Simplify line breaks and improve code readability
- Standardize indentation and remove unnecessary whitespace
- Optimize atomic add and copy operations for better clarity

* Add block sparse attention benchmarks for multiple libraries

This commit introduces comprehensive block sparse attention benchmarks for different libraries:
- TileLang block sparse FMHA implementation
- Triton block sparse FMHA implementation
- PyTorch reference block sparse FMHA implementation
- FlashAttention dense FMHA reference implementation

The benchmarks include:
- Configurable benchmark parameters (batch size, heads, sequence length, etc.)
- Sparse mask generation using top-k and threshold methods
- Performance measurement for different sparse attention configurations
- Utility functions for mask generation and benchmarking

* Refactor block sparse attention benchmarks with code style improvements

- Add Ruff linter ignore comments to benchmark files
- Improve code formatting and line breaks
- Remove unused imports
- Standardize print statement formatting
- Enhance code readability across multiple library benchmarks

* lint fix

* Add CUDA atomic operations for BFLOAT16 and update function naming

- Implement AtomicAdd functions for BFLOAT16 and BFLOAT16x2 in CUDA common header
- Rename existing atomic add functions to use PascalCase (atomicAdd -> AtomicAdd)
- Add a new __pack_nv_bfloat162 function for packing BFLOAT16 values
- Update kernel and language customization to use new function names
- Add return type annotations in profiler module

* lint fix

* Add example for Group Query Attention (GQA) forward pass using Flash Attention in TileLang

This commit introduces a new example script `example_gqa_fwd_bshd.py` that demonstrates:
- Group Query Attention (GQA) implementation
- Flash Attention forward pass
- Performance benchmarking
- Configurable parameters for batch, heads, sequence length, and dimension
- Autotuning support
- Reference implementation comparison

* Refactor IR lowering pipeline into modular phases

This commit introduces a new module `phase.py` to modularize the IR lowering process by splitting the complex lowering pipeline into two distinct phases:
- `LowerAndLegalize`: Handles initial IR legalization and transformation
- `OptimizeForTarget`: Applies target-specific optimizations

The changes simplify the lowering logic in multiple files by extracting the transformation steps into reusable functions, improving code readability and maintainability.

* lintfix

* nas kernel

* Enhance Native Sparse Attention Examples with Code Improvements and Parameter Updates

- Updated example_tilelang_nsa.py and example_triton_nsa.py with code formatting and style improvements
- Increased default number of heads and selected blocks in TileLang NSA example
- Added Ruff linter ignore comments to reference.py
- Standardized function signatures and improved code readability across NSA implementations

* Add utility math functions for integer operations

- Implement `next_power_of_2()` to calculate the next power of 2 for an integer
- Add `cdiv()` function for ceiling division of integers

* Add utility math functions for integer operations

- Implement `next_power_of_2()` to calculate the next power of 2 for an integer
- Add `cdiv()` function for ceiling division of integers

* Refactor DeepSeek MLA Decode Example with Enhanced Flash Attention Implementation

- Update flash attention kernel to support positional embeddings (PE)
- Modify reference implementation to handle PE and group query attention
- Increase default batch size and adjust benchmarking parameters
- Improve kernel performance and readability
- Add einops and torch operations for more flexible tensor manipulation

* Update README.md with corrected Flash MLA Decoding example path

- Modify the example link for Flash MLA Decoding to point to the correct directory
- Ensure accurate navigation to the DeepSeek MLA decoding example

* Add DeepSeek MLA decode example with Flash Attention implementation

* Add GEMM SplitK and StreamK example implementations

This commit introduces two new example scripts demonstrating advanced GEMM (matrix multiplication) techniques:
- `example_tilelang_gemm_splitk.py`: Implements a Split-K GEMM kernel using TileLang
- `example_tilelang_gemm_streamk.py`: Implements a Stream-K GEMM kernel using TileLang

Both examples showcase different parallel computation strategies for matrix multiplication, with comprehensive testing using PyTorch reference implementations.

* Refactor GEMM SplitK and StreamK example implementations

Clean up and improve code formatting for the SplitK and StreamK GEMM example scripts:
- Remove unused import (Profiler) in splitk example
- Simplify line breaks and improve code readability
- Standardize indentation and remove unnecessary whitespace
- Optimize atomic add and copy operations for better clarity

* [Enhancement] Add VectorizeLoop function and update imports for compatibility

* [CI][Test] Improve test cases for vectorization and fix typos in parser comments

* lint fix

* Fix incorrect module reference for VectorizeLoop transformation

* Refactor vectorize_loop transformation by removing unused extent mutation logic

* [Enhancement] Add support for FP8 data types and global barriers in CUDA codegen

* Fix formatting in CUDA FP8 header file for consistency

* Refactor CI workflow to use 'tilelang_ci' virtual environment and update CUDA type printing for better clarity

* Update submodule 'tvm' to latest commit for improved functionality

* Refactor execution backend references from 'dl_pack' to 'dlpack' for consistency and clarity; add apply_simplify function to simplify PrimFunc or IRModule.

* Refactor CUDA code for improved readability; clean up formatting and remove unnecessary whitespace in multiple files.

* Refactor import statement in test_tilelang_kernel_dequantize_gemm.py to use 'tilelang.language' for consistency

* Add CUDA requirements to FP8 test cases and update references for clarity

* Add a blank line for improved readability in test_tilelang_kernel_fp8_gemm_mma.py

* Fix data type in reference result calculation for consistency in test_tilelang_kernel_gemm_mma_intrinsic.py

* Add CUDA requirements and FP8 test cases for matmul and gemv simulations

* Remove debug print statements and use tilelang's testing assertion for result validation in test_tilelang_kernel_gemm_mma_intrinsic.py

* Remove outdated comment regarding FP8 tests in test_tilelang_kernel_gemv_simt.py

* Add BF16 support to matrix multiplication and introduce corresponding test cases

* Add a blank line for improved readability in BF16 GEMM test

* Update acknowledgements in README to include supervision by Zhi Yang at Peking University

* enhance acknowledgement

* Replace tutorial on memory layout optimization with new tutorial on writing high-performance kernels with thread primitives

* Update subproject commit for TVM dependency

* Update subproject commit for TVM dependency

* Add int4_t type and functions for packing char values in CUDA common header

* Add plot_layout example and implement GetForwardVars method in layout classes

* Refactor code for improved readability by adjusting line breaks and formatting in layout and test files

* Fix formatting by removing unnecessary line break in layout.h

* Refactor make_int4 function for improved readability by adjusting parameter formatting

* Add legend to plot_layout for improved clarity of thread and local IDs

* Remove unnecessary dependencies from requirements files for cleaner setup

* Remove flash_mha.py and add .gitkeep to deepseek_mla directory

* Add build requirements and update installation scripts for improved setup