coarray-learning 性能测试 使用蒙特卡罗求圆周率 串行,1e28个粒子 Pi: 3.1416 Time (s): 66.8940 并行,1e26 * 4 个粒子 Pi: 3.1416 Time (s): 20.5520 并行,1e25 * 8 个粒子 Pi: 3.1415 Time (s): 13.6090 并行,1e24 * 16 个粒子 Pi: 3.1418 Time (s): 17.9680