---
title: aclrtMemLocationType
description: "```"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/runtimeapi/aclcppdevg_03_1399.html
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---
# aclrtMemLocationType

```
typedef enum aclrtMemLocationType {
    ACL_MEM_LOCATION_TYPE_HOST = 0,      // 通过acl接口（例如aclrtMallocHost）申请的Host内存
    ACL_MEM_LOCATION_TYPE_DEVICE,        // 通过acl接口（例如aclrtMalloc）申请的Device内存
    ACL_MEM_LOCATION_TYPE_UNREGISTERED,  // 未通过acl接口申请的内存
    ACL_MEM_LOCATION_TYPE_HOST_NUMA =4,  // 通过aclrtMallocPhysical接口按照NUMA ID申请Host内存
} aclrtMemLocationType;
```