---
title: aclDeviceInfo
description: "| 数据格式 | 说明 |"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/runtimeapi/aclpythondevg_01_0968.html
sourcePath: /source/zh/canncommercial/900/API/runtimeapi/aclpythondevg_01_0968.html
indexId: 6f9fa18111db8c89d42822e18db65f17c82d7fd054145b5a039a402aaf0a631671
---
# aclDeviceInfo

| 数据格式 | 说明 |
| --- | --- |
| ACL\_DEVICE\_INFO\_UNDEFINED = \-1 | 未知规格。 |
| ACL\_DEVICE\_INFO\_AI\_CORE\_NUM = 0 | AI Core数量。 |
| ACL\_DEVICE\_INFO\_VECTOR\_CORE\_NUM = 1 | Vector Core数量。 |
| ACL\_DEVICE\_INFO\_L2\_SIZE = 2 | L2 Buffer大小，单位Byte。 |