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SIMD #89

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wangwangwar opened this issue Dec 19, 2019 · 0 comments
Open

SIMD #89

wangwangwar opened this issue Dec 19, 2019 · 0 comments

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@wangwangwar
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wangwangwar commented Dec 19, 2019 •
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batch eval with SIMD

Step 1: 如果是直接拿到一个数组，都非空，按处理器支持特性选择最合适的SIMD指令。
Step 2: 如果是直接拿到一个数组，中间有空的，需要额外记录空缺的下标，从数组中去掉空，按处理器支持特性选择最合适的指令，计算后再把空填回去。
Step 3: 如果拿到的数组是logical index，需要去physical数组中取数据，
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@wangwangwar