CANN and Driver Compatibility Diagnosis

Function

Diagnose the compatibility between the CANN and the driver and output the diagnosis result.

**Table 1** Diagnostic items
Item	Time Required	Whether NPU Training or Inference Is Affected	Application Scenario
Compatibility between the CANN and driver	2–7 seconds	No	Training or inference service rollout

Parameters

Table 2 lists only a test-specific parameter. For details about other common parameters, see Common Parameters.

**Table 2** Parameter description
Parameter	Description	Mandatory
[-i, --items]	Specifies the diagnosis check item. cann indicates the compatibility diagnosis between the CANN and driver.	Yes

Example

ascend-dmi -dg -i cann -p /usr/local/Ascend

[***@***]# ascend-dmi -dg -i cann -p /usr/local/Ascend
Summary:
    Arch: aarch64
    Mode: ******
    Time: 20250529-19:17:40
 
Software:
    cann:
        PASS

Fault Check Items

**Table 3** Fault check items
Command Output	Description
PASS	The test on CANN is normal.
FAIL	The CANN package fails to be installed. The driver installation is abnormal. (The compatibility between CANN and the driver does not meet the requirements.)

Parent topic: Health Check