January 2026 monthly summary for ROCm/composable_kernel: Delivered key features and automation improvements with clear business value. Key achievements include: 1) GFX950 Composable Kernel stability and performance improvements: fixed compiler errors, resolved shuffle regressions, improved Jenkins CI arch handling, and implemented scaling/multiplication fixes. 2) CK Docker Development Toolkit: introduced a suite of shell scripts to build, clean, run, and check status of Docker containers to streamline CK development and testing. 3) CI/Automation and Testing enhancements: fixes to tests and examples, and cross-team collaboration guided by co-authored commits. 4) Overall impact: enhanced stability and performance for gfx950, faster iteration cycles, and a streamlined development workflow with better maintenance of the CK Docker environment.
January 2026 monthly summary for ROCm/composable_kernel: Delivered key features and automation improvements with clear business value. Key achievements include: 1) GFX950 Composable Kernel stability and performance improvements: fixed compiler errors, resolved shuffle regressions, improved Jenkins CI arch handling, and implemented scaling/multiplication fixes. 2) CK Docker Development Toolkit: introduced a suite of shell scripts to build, clean, run, and check status of Docker containers to streamline CK development and testing. 3) CI/Automation and Testing enhancements: fixes to tests and examples, and cross-team collaboration guided by co-authored commits. 4) Overall impact: enhanced stability and performance for gfx950, faster iteration cycles, and a streamlined development workflow with better maintenance of the CK Docker environment.
December 2025: ROCm/composable_kernel delivered hardware-aware updates to improve build reliability and expand GPU support. Gated gfx90a in CMake to prevent compatibility errors on unsupported hardware, and added gfx1011 support in the CK Tile framework with gfx1010 macros and SGPR reading protection, along with fixes to compilation for newer GPUs. These changes reduce runtime failures on older hardware while enabling adoption of newer architectures.
December 2025: ROCm/composable_kernel delivered hardware-aware updates to improve build reliability and expand GPU support. Gated gfx90a in CMake to prevent compatibility errors on unsupported hardware, and added gfx1011 support in the CK Tile framework with gfx1010 macros and SGPR reading protection, along with fixes to compilation for newer GPUs. These changes reduce runtime failures on older hardware while enabling adoption of newer architectures.
November 2025 (2025-11) monthly summary for ROCm/composable_kernel. Focused on stability, memory efficiency, and numerical robustness of the GEMM pipeline to support reliable ML workloads and improved performance characteristics. Delivered a combination of bug fixes, feature refinements, and demonstration stability improvements across the GEMM workflow.
November 2025 (2025-11) monthly summary for ROCm/composable_kernel. Focused on stability, memory efficiency, and numerical robustness of the GEMM pipeline to support reliable ML workloads and improved performance characteristics. Delivered a combination of bug fixes, feature refinements, and demonstration stability improvements across the GEMM workflow.
Monthly summary for 2025-10 focusing on ROCm/composable_kernel. Emphasis on delivering robustness, warp-adaptive improvements, and execution correctness to support scalable kernel performance and reliability in production workloads.
Monthly summary for 2025-10 focusing on ROCm/composable_kernel. Emphasis on delivering robustness, warp-adaptive improvements, and execution correctness to support scalable kernel performance and reliability in production workloads.
2025-09 Monthly Summary - ROCm/composable_kernel Overview: - Focused on stabilizing builds, expanding GPU data-path capabilities for AMD, and hardening key kernels to improve reliability and performance across workloads. Key features delivered: - SGPR loading API for AMD GPUs: Added API and helpers to load data into SGPR registers, improving memory access efficiency on AMD GPUs; CHANGELOG updated to reflect the new functionality. (Commit: 2cbbf5dcb3bf315b9486a2c677ffcd6aa72b5298) Major bugs fixed: - CMake script GPU target handling: Prevents applying hardcoded default GPU targets when none are provided, increasing build predictability and deployment stability. (Commit: 8d43155bce73226b0030dcfbb12f95e62c4abe46) - Attention backward pass correctness: Ensured Default2DEpilogue operator is const and reconciled multiple Default2DEpilogue call sites for fmha_bwd, improving backward path reliability. (Commit: 42a43d152388f0e322b8af444b1fc68f1b651900) - gfx950 architecture fixes: Addressed numerical errors in transpose enablement and pipeline configs; expanded vector loading support; refined GEMM stride defaults to improve correctness and stability on gfx950. (Commits: 1894a0dbc304f6fd8b1d2fc9611658888baab22b and b159841a06eaee568ad8336603b0b00ff38a7314) Overall impact and accomplishments: - Stabilized the build and deployment process for ROCm/composable_kernel, reducing deployment issues and improving release predictability. - Delivered memory path optimizations for AMD GPUs via SGPR loading API, enabling more efficient data movement and potential performance gains on SGPR-bound workloads. - Hardened critical correctness paths in attention mechanisms, contributing to more reliable model training and inference pipelines on AMD hardware. - Expanded gfx950 support with targeted fixes, leading to more robust performance across affected workloads and reduced architecture-specific defects. Technologies/skills demonstrated: - Build systems: CMake scripting and GPU-target handling. - GPU memory architecture: SGPR usage and memory access optimizations. - Kernel correctness: fmha_bwd improvements and Default2DEpilogue usage. - low-level optimization: gfx950 GEMM paths, vector loading, and transpose configuration. - Collaboration and traceability: changes linked to commits and CHANGELOG updates.
2025-09 Monthly Summary - ROCm/composable_kernel Overview: - Focused on stabilizing builds, expanding GPU data-path capabilities for AMD, and hardening key kernels to improve reliability and performance across workloads. Key features delivered: - SGPR loading API for AMD GPUs: Added API and helpers to load data into SGPR registers, improving memory access efficiency on AMD GPUs; CHANGELOG updated to reflect the new functionality. (Commit: 2cbbf5dcb3bf315b9486a2c677ffcd6aa72b5298) Major bugs fixed: - CMake script GPU target handling: Prevents applying hardcoded default GPU targets when none are provided, increasing build predictability and deployment stability. (Commit: 8d43155bce73226b0030dcfbb12f95e62c4abe46) - Attention backward pass correctness: Ensured Default2DEpilogue operator is const and reconciled multiple Default2DEpilogue call sites for fmha_bwd, improving backward path reliability. (Commit: 42a43d152388f0e322b8af444b1fc68f1b651900) - gfx950 architecture fixes: Addressed numerical errors in transpose enablement and pipeline configs; expanded vector loading support; refined GEMM stride defaults to improve correctness and stability on gfx950. (Commits: 1894a0dbc304f6fd8b1d2fc9611658888baab22b and b159841a06eaee568ad8336603b0b00ff38a7314) Overall impact and accomplishments: - Stabilized the build and deployment process for ROCm/composable_kernel, reducing deployment issues and improving release predictability. - Delivered memory path optimizations for AMD GPUs via SGPR loading API, enabling more efficient data movement and potential performance gains on SGPR-bound workloads. - Hardened critical correctness paths in attention mechanisms, contributing to more reliable model training and inference pipelines on AMD hardware. - Expanded gfx950 support with targeted fixes, leading to more robust performance across affected workloads and reduced architecture-specific defects. Technologies/skills demonstrated: - Build systems: CMake scripting and GPU-target handling. - GPU memory architecture: SGPR usage and memory access optimizations. - Kernel correctness: fmha_bwd improvements and Default2DEpilogue usage. - low-level optimization: gfx950 GEMM paths, vector loading, and transpose configuration. - Collaboration and traceability: changes linked to commits and CHANGELOG updates.
Monthly work summary for 2025-08 focusing on key accomplishments across two repositories: StreamHPC/rocm-libraries and ROCm/composable_kernel. Highlights include FP8 support for grouped GEMM, correctness fixes, persistent kernel enablement, and build-system optimizations that reduced build times and improved validation coverage.
Monthly work summary for 2025-08 focusing on key accomplishments across two repositories: StreamHPC/rocm-libraries and ROCm/composable_kernel. Highlights include FP8 support for grouped GEMM, correctness fixes, persistent kernel enablement, and build-system optimizations that reduced build times and improved validation coverage.
July 2025: Focused on boosting memory transfer performance and scalability in StreamHPC/rocm-libraries by delivering architecture-specific gains and refactors to enable asynchronous data movement. Key work targeted MI355 and gfx950, enabling asynchronous tile copies and expanded per-thread load bandwidth, with code updates to buffer addressing and pipelines to leverage these capabilities. This unlocks higher throughput for memory-intensive workloads and better hardware utilization.
July 2025: Focused on boosting memory transfer performance and scalability in StreamHPC/rocm-libraries by delivering architecture-specific gains and refactors to enable asynchronous data movement. Key work targeted MI355 and gfx950, enabling asynchronous tile copies and expanded per-thread load bandwidth, with code updates to buffer addressing and pipelines to leverage these capabilities. This unlocks higher throughput for memory-intensive workloads and better hardware utilization.
June 2025 monthly summary for StreamHPC/rocm-libraries focused on expanding numeric precision, improving GEMM epilogue, and hardening architecture-specific behavior, while stabilizing CI gating. Delivered cross-arch precision enhancements for CK Tile GEMM (int8 and FP8 enablement), enhanced epilogue processing with CShuffle, and strengthened BF8 guards. Also updated CI gating to revert gfx942 defaults, preserving CI stability and test expectations. These workstreams improved GPU-accelerated GEMM performance, numerical accuracy, portability across architectures, and developer productivity.
June 2025 monthly summary for StreamHPC/rocm-libraries focused on expanding numeric precision, improving GEMM epilogue, and hardening architecture-specific behavior, while stabilizing CI gating. Delivered cross-arch precision enhancements for CK Tile GEMM (int8 and FP8 enablement), enhanced epilogue processing with CShuffle, and strengthened BF8 guards. Also updated CI gating to revert gfx942 defaults, preserving CI stability and test expectations. These workstreams improved GPU-accelerated GEMM performance, numerical accuracy, portability across architectures, and developer productivity.
May 2025 monthly summary for StreamHPC/rocm-libraries focusing on performance, hardware coverage, and kernel efficiency. Delivered three core value enhancements: (1) restored gfx90a SMFMA for performance, addressing a regression and ensuring peak gfx90a throughput; (2) introduced vectorized CK Tile transpose for batched workloads with fp8/fp16/bf16 support, improving batched transpose throughput, kernel dispatch, and test coverage; and (3) optimized Preshuffled GEMM V3 with better instruction layout and KGroup packing, plus small-sized GEMM support with targeted build options. These changes collectively raise overall kernel throughput, reduce latency for large workloads, and broaden hardware support while enhancing build configurability and test coverage.
May 2025 monthly summary for StreamHPC/rocm-libraries focusing on performance, hardware coverage, and kernel efficiency. Delivered three core value enhancements: (1) restored gfx90a SMFMA for performance, addressing a regression and ensuring peak gfx90a throughput; (2) introduced vectorized CK Tile transpose for batched workloads with fp8/fp16/bf16 support, improving batched transpose throughput, kernel dispatch, and test coverage; and (3) optimized Preshuffled GEMM V3 with better instruction layout and KGroup packing, plus small-sized GEMM support with targeted build options. These changes collectively raise overall kernel throughput, reduce latency for large workloads, and broaden hardware support while enhancing build configurability and test coverage.
April 2025 performance summary for StreamHPC/rocm-libraries. Focused on expanding hardware support, stabilizing GEMM paths, and strengthening CI and governance. Key contributions include MI355 support for CK TILE GEMM with refined test configurations; MFMA 16x16x32 FP8/BF8 path with related GEMM pipeline enhancements; Static Encoding Pattern compile-time fix for small tile sizes; BF16 conversion fix in GEMM Multiply Multiply with CI improvements; CODEOWNERS update to include Thomas Ning to strengthen review process.
April 2025 performance summary for StreamHPC/rocm-libraries. Focused on expanding hardware support, stabilizing GEMM paths, and strengthening CI and governance. Key contributions include MI355 support for CK TILE GEMM with refined test configurations; MFMA 16x16x32 FP8/BF8 path with related GEMM pipeline enhancements; Static Encoding Pattern compile-time fix for small tile sizes; BF16 conversion fix in GEMM Multiply Multiply with CI improvements; CODEOWNERS update to include Thomas Ning to strengthen review process.
March 2025 monthly summary for StreamHPC/rocm-libraries: Focused GEMM-path improvements delivering two concrete changes: a performance-optimized MBlock=144 instance and a data synchronization bug fix. Key outcomes include improved throughput and correctness across configurations, enabling more reliable deployments and better performance for GEMM workloads. Technologies/skills demonstrated include C++ header/template updates, low-level kernel debugging, and cross-config validation. Business value: higher throughput, reduced risk of mis-execution across configs.
March 2025 monthly summary for StreamHPC/rocm-libraries: Focused GEMM-path improvements delivering two concrete changes: a performance-optimized MBlock=144 instance and a data synchronization bug fix. Key outcomes include improved throughput and correctness across configurations, enabling more reliable deployments and better performance for GEMM workloads. Technologies/skills demonstrated include C++ header/template updates, low-level kernel debugging, and cross-config validation. Business value: higher throughput, reduced risk of mis-execution across configs.
February 2025 monthly summary focusing on performance-oriented contributions in StreamHPC/rocm-libraries.
February 2025 monthly summary focusing on performance-oriented contributions in StreamHPC/rocm-libraries.
January 2025: Delivered CK Tile GEMM enhancements in StreamHPC/rocm-libraries, focusing on performance benchmarking across GPU architectures, improved measurement and logging, and a new v2 block GEMM policy (2x2 warp) to improve block selection and compilation reliability. Also fixed CI/CD issues and refactored the register block method to stabilize workflows. Result: clearer performance signals, higher GEMM reliability, and smoother cross-architecture performance portability.
January 2025: Delivered CK Tile GEMM enhancements in StreamHPC/rocm-libraries, focusing on performance benchmarking across GPU architectures, improved measurement and logging, and a new v2 block GEMM policy (2x2 warp) to improve block selection and compilation reliability. Also fixed CI/CD issues and refactored the register block method to stabilize workflows. Result: clearer performance signals, higher GEMM reliability, and smoother cross-architecture performance portability.
Monthly summary for 2024-11: Delivered robustness enhancements for the CK Tile GEMM path in StreamHPC/rocm-libraries. Refactored CK Tile GEMM to improve layout, padding, and alignment, and added more flexible tensor layout handling within the GEMM pipeline to support diverse tensor configurations. No major bugs fixed this month; primary focus was reliability and adaptability of the GEMM kernel, laying groundwork for future performance improvements across workloads.
Monthly summary for 2024-11: Delivered robustness enhancements for the CK Tile GEMM path in StreamHPC/rocm-libraries. Refactored CK Tile GEMM to improve layout, padding, and alignment, and added more flexible tensor layout handling within the GEMM pipeline to support diverse tensor configurations. No major bugs fixed this month; primary focus was reliability and adaptability of the GEMM kernel, laying groundwork for future performance improvements across workloads.
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