May 2026 — Lattice/QUDA IPC stability hardening and resource cleanup. Delivered memory-management and lifecycle fixes for inter-process communication (IPC) usage during ghost-buffer resizing, including cleanup of stale handles and avoidance of IPC event leaks. Also hardened remote IPC event destruction to prevent leaks, improving reliability in multi-process QUDA runs. Result: reduced memory leaks, fewer stale handles, and more stable buffer-resize IPC workflows, translating to better uptime and easier maintenance.

July 2025 monthly summary focusing on key accomplishments in the QUDA HIP backend. Delivered a targeted bug fix to ensure correct wavefront size reporting and stable host-device interaction, improving cross-architecture reliability and user confidence in the QUDA HIP backend.

June 2025 monthly summary highlighting the main technical and business value delivered for lattice/quda. Focused on expanding ROCm/hipblas compatibility, stabilizing precision-related tests, and addressing ROCm regressions to improve overall runtime stability and reliability across stacks.

April 2025 monthly summary for lattice/quda: Delivered migration of ROCm build CI from a self-hosted ROCm environment to a Ubuntu-latest GitHub Actions runner, centralizing and stabilizing ROCm builds across CI. Removed legacy rocm-build-ci.yml and introduced rocm_githubactions_build.yml. Implemented ROCm component installation and CMake configuration on the GitHub Actions runner to enable consistent, reproducible builds in cloud environments. This work includes provisioning a non-self-hosted GitHub runner to improve scalability and reduce maintenance of dedicated CI infrastructure.

March 2025 performance-focused update for lattice/quda: focused on stabilizing the HIP backend numeric path by re-enabling double complex support in BatchInvertMatrix, addressing test failures, and improving reliability for complex-valued simulations.