Implemented a nightly AddressSanitizer (ASan) CI job for trilinos/Trilinos to detect memory errors earlier in the CI pipeline. This adds proactive memory safety checks, improves CI reliability, and accelerates feedback to developers. Commit 8749ef7ae91e52c83ddf9b30b7690ccbf080556e; Signed-off-by: Samuel E. Browne <sebrown@sandia.gov>.

March 2026 monthly summary for trilinos/Trilinos: Delivered core improvements via upstream master merge; aligned local master with master_merge_20260307_175816, consolidating updates across modules and stabilizing the codebase. This work reduces drift, improves stability, and accelerates release readiness.

February 2026 — trilinos/Trilinos: CodeQL CI workflow improvements to boost reliability and flexibility. Key changes include a manual-trigger option for CodeQL analysis and the removal of a redundant condition in the CodeQL job configuration, reducing CI noise and stabilizing code quality checks. These changes enhance security scanning coverage and give developers on-demand analysis capabilities during critical sprints.

This month focused on modernizing and stabilizing the CI/CD pipeline for trilinos/Trilinos, with a specific emphasis on compatibility with newer compilers and deterministic test execution. By removing the deprecated GCC10 action and reordering test dependencies in CMakeLists.txt, the pipeline becomes faster, more reliable, and easier to maintain, reducing false negatives and enabling quicker feedback to developers.

December 2025 (trilinos/Trilinos): Delivered notable test-system and repository hygiene improvements to boost build reliability and onboarding. Key changes include modernizing GTest integration with CMake find_package and TriBITS compatibility, fixing test directory inclusion, removing unused GTest dependency from Percept to simplify builds, and removing an accidentally added submodule to maintain a clean repo. These changes reduce maintenance cost, speed up CI, and improve developer productivity.

November 2025 (trilinos/Trilinos) focused on modernizing the build system, improving stability, and aligning testing/release workflows. Key updates include GCC runner upgrade, switch to netlib-lapack, new GCC12/OpenMPI4 build, and OpenMP/TPL compatibility improvements, along with adjustments to error handling to maintain progress in a GCC-upgrade cycle. GTest reorganization, release-note work for Trilinos 16.2, and targeted CMake deprecation handling were completed to improve portability, downstream reliability, and release readiness.

October 2025 monthly summary for trilinos/Trilinos. Delivered core features across CUDA pipeline modernization, CI/CD stabilization, environment naming clarity, and documentation improvements, with targeted maintenance to strengthen build safety. Focused on delivering business value through faster, more reliable builds, improved portability across platforms, and clearer GPU and container requirements for enterprise workflows.

September 2025: Modernization milestone for trilinos/Trilinos with a build-system-wide adoption of C++20. Standardized on C++20 as the default, removing explicit C++20 settings from configuration specs to improve compatibility, reduce drift, and future-proof the codebase. This lays groundwork for modern features and simplifies maintenance across platforms. Core commits underpinning these changes are f52a98ebcfe3f70369188d51662355266a16db63 and d0e4668d5530afaf4a1566c34f6e628801bd80ba, each signed off to ensure traceability.

Month 2025-08 – Trilinos: Delivered essential maintenance and reliability improvements that reduce long-term costs and improve deployment confidence. Key features include dependency cleanup and deprecation removal with test alignment to PyTrilinos2/Compadre; CI/CD enhancements adding GCC14 PR builds, CUDA 12 support, updated framework container, and Spack version exposure; and targeted fixes for MPI_COMM_WORLD robustness, compiler warning tuning, and CUDA alignment in KokkosKernels spmv_mv. These changes lower maintenance overhead, improve cross-platform compatibility, and enhance CI reliability for faster, safer releases.

July 2025 Trilinos monthly summary (trilinos/Trilinos): Focused on stabilizing CI/build-system standards, improving build quality, and pruning deprecated dependencies. Delivered across CI, compiler warnings management, and maintenance cleanup to increase reliability, accelerate feedback, and enable safer adoption of modern C++ standards.

June 2025 monthly summary focusing on release stability through dependency pinning and Trilinos/Kokkos upgrades across spack/spack and spack/spack-packages. Delivered reproducible release builds and aligned dependency management, enabling faster release readiness and reduced build instability.

May 2025 monthly summary for trilinos/Trilinos focused on CI/CD hardening, packaging reliability, and OpenMP build stabilization. Delivered guardrails to protect deprecated files, aligned Spack packaging workflow with the latest develop, and reduced build blockers by adjusting compiler warning levels. These changes improve deployment consistency, downstream packaging compatibility, and overall development velocity.

In April 2025, delivered key stability and build-system improvements across Trilinos and Spack projects, resulting in faster PR validation, fewer CI regressions, and more reproducible builds. The work focused on CI reliability, containerized CUDA builds, and essential build dependencies, translating into tangible business value for teams relying on these repos.

March 2025 monthly summary for trilinos/Trilinos focusing on reliability, test isolation, and CI/CD modernization. Key outcomes include a robust test environment with an updated GoogleTest framework, along with a hardened CI pipeline that improves visibility and reproducibility across OneAPI workflows.

February 2025 focused on reducing build noise, increasing traceability, and hardening the test suite while standardizing configuration for Trilinos/OneAPI. Delivered targeted warning suppression, clearer CDash build naming, and a consolidated OneAPI build configuration that aligns with SPACK directives and netlib-lapack usage for CUDA AT2.

January 2025: Strengthened Trilinos code health and build reliability. Key achievements include centralizing GCC warning policy and promoting warnings to errors, disabling CUDA tests on older CUDA versions to speed builds, simplifying container MPI config to rely on PATH, and boosting CI reliability with improved dependency handling and remote checks. Result: more deterministic builds, faster feedback, and maintainable codebase. Demonstrated skills in compiler policy, build systems, MPI/container configuration, and CI/CD automation.

December 2024 monthly summary for trilinos/Trilinos focused on consolidating CUDA/BLAS/LAPACK configuration and SPACK CUDA TPL management across build systems, stabilizing CUDA-related tests, and improving CI/CD clarity. Key work centered on building a reliable, maintainable, and scalable CUDA-enabled Trilinos stack with reproducible configurations and faster feedback loops for developers and users. Key changes and outcomes: - Unified CUDA/BLAS/LAPACK configuration and SPACK CUDA TPL management: refactored and consolidated dependencies across build systems, standardized SEMS/CUDA naming, separated BLAS/LAPACK from COMMON_SPACK_TPLS, and added necessary link flags to ensure correct builds (e.g., -lm with SuperLU). Result: more consistent system-library usage, fewer build failures, and easier maintenance. - Unit test stability and coverage for CUDA: fixed framework unit test issues and timeouts; serialized CUDA-related tests (Intrepid2) and expanded serial execution for Kokkos tests to improve reliability in CUDA contexts. Result: more reliable CI feedback and reduced flaky tests. - CI/CD workflow naming and reporting improvements: renamed AT2 builds to production-readiness indicators and corrected CDash naming for non-UVM builds, improving clarity of CI status and production-readiness signals. Overall impact and accomplishments: - Business value: increased build reliability, reproducibility across platforms, and faster developer feedback, enabling quicker onboarding and more stable releases of CUDA-enabled Trilinos components. - Technical achievements: advanced build-system engineering with Spack-based CUDA TPLs, improved test stability in GPU contexts, and clearer CI/CD communication. Technologies/skills demonstrated: - Build systems: Spack, CUDA, BLAS/LAPACK integration, SEMS/CUDA naming conventions - Testing: CUDA-related unit test stability, test serialization, Kokkos/Intrepid2 in CUDA contexts - CI/CD: GitHub Actions workflow naming, CDash integration, production-readiness signaling - Code quality: dependency modularization, removal of duplicates, improved linking and platform consistency

During 2024-11, Trilinos delivered notable CI/CD and build optimization improvements, CUDA11 stability work, container-config simplifications, GPU testing resource enhancements, and code-quality improvements. Key results include faster RHEL8 builds via CCache, stabilized CUDA11 pipelines by disabling non-compatible tests and aligning configurations, a dedicated CUDA11 container spec to manage compiler and MPI versions, clearer CI/CD dashboards and build naming, and more efficient GPU test resource allocation. These changes reduced build/test times, increased reliability for CUDA11 workflows, improved maintainability, and provided actionable visibility through improved dashboards and warnings.

In September 2024, contributed substantial testing, CI efficiency, and portability improvements for trilinos/Trilinos. Highlights include expanding CUDA AT2 non-UVM test coverage with a new serial test pathway in the CUDA container, optimizing CI resource usage and ensuring container consistency by disabling X11, implementing an OpenMPI RDMA stability workaround by disabling the smcuda BTL, and applying a recommended Kokkos performance option to boost Trilinos performance and portability. These changes improved test reliability, reduced resource contention, and delivered measurable gains in CUDA-enabled configurations across builds.