* [Refactor] Update JIT kernel functions and streamline GEMM tests
* Renamed and refactored matmul and run_gemm functions to matmul_kernel_jit and run_gemm_kernel_jit for clarity.
* Removed redundant JIT decorator from the matmul function, ensuring it is applied only to the kernel function.
* Updated test function names to reflect changes in the kernel functions, enhancing consistency and readability.
* Cleaned up commented-out code and unnecessary imports to improve overall code quality.
* Update main function call in GEMM test to use tilelang testing framework
* Update README and example scripts to include JIT decorator comments
* Added comments in README.md and various example scripts to indicate the use of the @tilelang.jit decorator for returning torch functions.
* Removed redundant comments that previously instructed to add the decorator, streamlining the documentation and improving clarity.
* Update GEMM test parameters for improved performance
* Set num_stages to 0 and adjusted matrix dimensions in test functions to enhance performance and consistency across GEMM tests in test_tilelang_kernel_gemm.py.
* [Enhancement] Introduce thread range management in layout and operation handling
* Added `SetThreadRange` method to `FragmentNode` for managing thread ranges.
* Updated `LayoutNode::Inverse` to provide more informative error messages.
* Refactored layout inference and operation lowering to utilize `thread_bounds` instead of `block_size`, enhancing flexibility for thread management.
* Introduced new tests for tilelang operations to validate thread range functionality and ensure correctness in parallel execution scenarios.
* lint fix
* [Refactor] Improve thread variable handling in layout inference and operation lowering
* Removed workaround for undefined thread_var in layout inference, ensuring proper handling of thread bounds.
* Updated logic to define thread bounds based on the presence of thread_var, enhancing robustness in thread management.
* Refactored thread_var initialization in lower_tile_op to maintain consistency across the codebase.
* [Refactor] Update thread variable handling in layout inference and operation lowering
* Refactored thread variable checks to ensure bounds are only accessed when defined, improving safety and clarity.
* Initialized thread_var with a default range to prevent undefined behavior.
* Updated logic in lower_tile_op to align with new thread variable handling, enhancing consistency across the codebase.
Lei Wang