Conceitos essenciais
信頼性のある数値計算は重要であり、浮動小数点演算はエラーを起こしやすい。この論文では、FlowFPXというツールキットが浮動小数点例外をシステマティックにデバッグするために開発されたことを紹介しています。
Estatísticas
流体力学シミュレーション中のNaN注入:BoundsError: attempt to access element Vector { Int64 } at index [2]
GPU-FPX出力:Total NaN: 2, Total INF: 1, Total subnormal: 0, Total div0: 2
Citações
"Reliable numerical computations are central to scientific computing, but the floating-point arithmetic that enables large-scale models is error-prone."
"IEEE 754 floating-point standard defines exceptions and exceptional values as the outcome of operations that have 'no single universally acceptable result'."
"FloatTracker is a toolkit for tracking down floating-point exceptions."