---
title: Cache
description: "Cache，其中维护了一组tensor的地址"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/others/llmdatadistdev/llmcrv1_42_24.html
sourcePath: /source/zh/canncommercial/900/others/llmdatadistdev/llmcrv1_42_24.html
indexId: a3a93fd2bbc7764a6fe9488d9cfddb85fd892830b470a822710120e1bdcc51fc70
---
# Cache

Cache，其中维护了一组tensor的地址

```
struct Cache {
  int64_t cache_id = -1;                     // Cache的ID
  std::vector<uintptr_t> tensor_addrs;       // Cache中各tensor的地址, 在单进程多卡场景中，多卡的地址依次排列。
  CacheDesc cache_desc;                      // Cache描述
  uint8_t reserved[128];                     // 预留
}
```