2_system_info

Description

This sample demonstrates Runtime basic system information query and common data type utility interfaces, suitable as a warm-up sample before device query-type samples.

Product Support

This sample supports the following products:

Product	Supported
Ascend 950PR/Ascend 950DT	Yes
Atlas A3 training series products/Atlas A3 inference series products	Yes
Atlas A2 training series products/Atlas A2 inference series products	Yes

Compile and Run

For environment installation details and general running steps, refer to README in the example directory.

CANN RUNTIME API

The key functionality points and their key interfaces involved in this sample are as follows:

• Initialization
  • Call aclInit interface for initialization configuration.
  • Call aclFinalize interface for deinitialization.
• Version Information Query
  • Call aclrtGetVersion interface to query ACL Runtime API version number.
  • Call aclsysGetVersionStr and aclsysGetVersionNum interfaces to query CANN software package version information.
• Run Mode and Data Type Tools
  • Call aclrtGetRunMode interface to determine whether currently running in Host or Device mode.
  • Call aclFloatToFloat16 and aclFloat16ToFloat interfaces to complete float16/float32 mutual conversion.
  • Call aclDataTypeSize interface to query byte size of common aclDataType.

Sample Output

[INFO]  ACL Runtime API version: 1.2.3
[INFO]  CANN package [runtime] version string: 8.x.x
[INFO]  CANN package [runtime] version number: 8000000
[INFO]  Current run mode: ACL_HOST
[INFO]  Float conversion: 1.625000 -> 0x3e80 -> 1.625000
[INFO]  Data type size: ACL_FLOAT=4, ACL_FLOAT16=2, ACL_INT64=8