CANN App Logs

File Description

• File content: Records App logs printed by CANN, including the host App logs (plog-{pid}-{time}.log) and device App logs (device-{pid}-{time}.log). For more log information, see "Viewing Logs (Ascend EP)" in CANN Log Reference.
• Naming constraints: plog-{pid}-{time}.log and device-{pid}-{time}.log
• Constraints on the storage path:
  • Collection_directory/
  • ${--process_log}/
• Directory structure:

  |-- process_log    
      |-- debug
          |--plog              # Directory of host App logs
             |--plog-{pid}-{Unix time}.log
          |--device-0           # Directory of device App logs
              |--device-{pid}-{unix time}.log
          |--device-1
          |--device-2
          |--…
      |-- run
      |--operation
      |--security

Collection Mode Description

The CANN App logs are stored in ${HOME}/ascend/log by default. The log storage path can be customized using the environment variable ASCEND_PROCESS_LOG_PATH.

export ASCEND_PROCESS_LOG_PATH=${Custom_directory_path}

This feature requires that CANN App logs be dumped to Collection_directory/process_log. For details about the format restrictions, see File Description.