---
title: aclCannAttr
description: "| 数据格式 | 说明 |"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/runtimeapi/aclpythondevg_01_0969.html
sourcePath: /source/zh/canncommercial/900/API/runtimeapi/aclpythondevg_01_0969.html
indexId: 9fbbce4c4837964dde4389be689baa0ac6b3b6c0337297bb38f2efd663a83d5771
---
# aclCannAttr

| 数据格式 | 说明 |
| --- | --- |
| ACL\_CANN\_ATTR\_UNDEFINED = \-1 | 未知特性。 |
| ACL\_CANN\_ATTR\_INF\_NAN = 0 | 溢出检测Inf/NaN模式。 |
| ACL\_CANN\_ATTR\_BF16 = 1 | bf16数据类型。 |
| ACL\_CANN\_ATTR\_JIT\_COMPILE = 2 | 算子二进制特性。 |