Researchers developed accurate MATLAB-based models of AMD GPU matrix multipliers across three architectures (CDNA 1-3) to characterize their numerical behavior, since these units don't conform to IEEE 754 standards. The models were validated for bit-level reproducibility against hardware using 10 million test vectors and applied to compare accuracy differences between AMD and NVIDIA matrix cores.
GameMath is a self-contained C math library derived from FreeBSD's msun that provides consistent floating-point results across platforms and compilers for networked games using lock-step simulation. It replaces platform libc math functions with software implementations prefixed with gm_ to ensure reproducible binary-level floating-point operations and prevent simulation desynchronization.