---
title: 功能说明
description: "遍历每个key和value，将key和value(num_heads, head_size)以slotmapping填入key_cache/value_cache指定位置。"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/ascendtb/ascendtb_01_0221.html
sourcePath: /source/zh/canncommercial/900/API/ascendtb/ascendtb_01_0221.html
indexId: b2041ea052534bd434c81f4e3555daee83e02823b29863a20782abbb767452ac64
---
# 功能说明

遍历每个key和value，将key和value(num_heads, head_size)以slotmapping填入key_cache/value_cache指定位置。

图1 ReshapeAndCacheOperation功能示意图