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* GH-2368 Adding a basic glossary GH-2368 Minor edits GH-2368 Adding missing READMEs and standardization. resolving readme updates GH-2368 Minor improvements to documentation. Improving some readmes. Further improvement for readmes. Cleaned up the documentation in 'client_example' (#2468) Update for PR Update ACRONYMS.md to remove trivial terms Update ACRONYMS.md to provide detailed explanations for BF16 and BF8 formats Apply suggestion from @spolifroni-amd Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Apply suggestion from @spolifroni-amd Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Update README.md to clarify CK Tile API description and remove outdated references to the Tile Engine. revise 37_transpose readme revise 36_copy readme Remove references to the Tile Engine in README files for 19_gemm_multi_d and 35_batched_transpose, and update distribution links for clarity. Remove references to the Tile Engine in multiple README files and update distribution links for consistency and clarity. Remove references to the Tile Engine in README files across multiple examples * GH-2368 Adding a basic glossary GH-2368 Minor edits GH-2368 Adding missing READMEs and standardization. resolving readme updates GH-2368 Minor improvements to documentation. Improving some readmes. Further improvement for readmes. Cleaned up the documentation in 'client_example' (#2468) Update for PR Update ACRONYMS.md to remove trivial terms Update ACRONYMS.md to provide detailed explanations for BF16 and BF8 formats Apply suggestion from @spolifroni-amd Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Apply suggestion from @spolifroni-amd Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com> Update README.md to clarify CK Tile API description and remove outdated references to the Tile Engine. revise 37_transpose readme revise 36_copy readme Remove references to the Tile Engine in README files for 19_gemm_multi_d and 35_batched_transpose, and update distribution links for clarity. Remove references to the Tile Engine in multiple README files and update distribution links for consistency and clarity. Remove references to the Tile Engine in README files across multiple examples Refine README files by removing outdated references to the Tile Engine * Updates based on PR feedback 1 * Updates based on PR feedback 2 * Updates based on PR feedback 3 * Updates based on PR feedback 4 * Updates based on PR feedback 5 * Updates based on PR feedback 6 * Updates based on PR feedback 7 * Updates based on PR feedback 8 * Content Modification of CK Tile Example * Modify the ck_tile gemm config --------- Co-authored-by: AviralGoelAMD <aviral.goel@amd.com> Co-authored-by: ThomasNing <thomas.ning@amd.com>
Client Example: GEMM with Add and Multiply Fusion
Theory
This client example demonstrates GEMM fused with addition and multiplication operations. This pattern is used in neural networks for bias addition, scaling, gating, and other elementwise transformations after a linear layer.
Mathematical Formulation:
- GEMM:
Y = A \times B - Add:
Z = Y + D_0 - Multiply:
E = Z \odot D_1D_0,D_1: auxiliary tensors (e.g., bias, scale, gate)
Algorithmic Background:
- The GEMM result is kept in registers, addition and multiplication are fused in the epilogue.
- No intermediate results are written to global memory.
- Used for bias+scale, gating, and other fused epilogue patterns.
How to Run
Prerequisites
Please follow the instructions in the main Build Guide section as a prerequisite to building and running this example.
Build and run
cd composable_kernel/client_example/29_gemm_add_multiply
mkdir build && cd build
cmake -DCMAKE_CXX_COMPILER=/opt/rocm/bin/hipcc ..
make -j
# Example run
./gemm_add_multiply
Source Code Structure
Directory Layout
client_example/29_gemm_add_multiply/
├── gemm_add_multiply.cpp # Main client example: GEMM+Add+Multiply
├── CMakeLists.txt # Build configuration for the example
Key Functions
- main() (in
gemm_add_multiply.cpp):
Sets up input matrices, configures GEMM and epilogue parameters, launches the fused kernel, and verifies the result. - Fused kernel invocation:
Uses the Composable Kernel device API to launch the GEMM with fused addition and multiplication.
Additional Details
- Supports fusion of multiple elementwise operations with GEMM.
- Example parameters can be adjusted in the source for different workloads.
Related Examples
- 02_gemm_bilinear: Multi-tensor bilinear operations
- 46_gemm_add_multiply: GEMM with add and multiply in the main example directory