hw10 Gelee #1
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hw10 Gelee #1
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archibate
reviewed
Mar 17, 2022
| auto &block = m_data[(x >> Bshift) & B1mask][(y >> Bshift) & B1mask]; | ||
| if (!block) | ||
| return 0; | ||
| return block->m_block[x & Bmask][y & Bmask]; |
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我觉得还可以做一下8bit合成一个char的那个优化。
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hw10
未开启openMP
134.008686s开启openMP
03/00.cpp 指针数组来表示
04/04.cpp 指针数组加上spin_mutex
实现方法
封装稀疏网格的 Grid 类的？
有无位运算量化减轻内存带宽？
Grid 是否可以并行访问？OpenMP 还是 TBB？
有没有用访问者模式缓存坐标，避免重复上锁？
对于
step()中这种插桩你是如何优化的？用了老师的什么知识点？