Abdullah Asivas worked on the ERGO-Code/HiGHS repository, focusing on improving concurrency safety within the solver’s multi-threaded factorization process. He addressed a race condition by refactoring the stop flag from a standard boolean to an atomic boolean, ensuring thread-safe signaling when halting parallel computations. This change, implemented in C++ with a focus on multithreading and software engineering best practices, enhanced the stability and reliability of the solver under concurrent workloads. Abdullah’s work demonstrated careful attention to maintainability and reproducibility, as evidenced by clear commit documentation and traceability, though his contributions during this period were limited to a single bug fix.