aclrtRecordEvent Call Failure Due to Too Many Events

Symptom

When the aclrtRecordEvent API is called to record an event in a stream, the following error is displayed in the log, indicating that the event allocation fails. The logs of the old and new versions are different because the software version is being optimized. The logs are as follows:

• Example of the log in the new version

  275:[INFO] ASCENDCL(234708,acltest_host):2024-07-17-23:57:52.402.011 [acl_event_testcase.cpp:173]234708 acl_event_testcase.cpp:173 ACL_EVENT_0213:create events, the latest event can be created, but eventRecord failed, return ACL_ERROR_RT_DRV_INTERNAL_ERROR !
  69718:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.739.666 [event.cc:378]234708 Record:report error module_type=0, module_name=EE9999
  69719:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.739.680 [event.cc:378]234708 Record:Event id alloc error, deviceId=0, tsId=0, retCode=0x7020019!
  70241:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.749.305 [stream.cc:1751]234708 ReleaseTimeline:report error module_type=0, module_name=EE9999
  70242:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.749.307 [stream.cc:1751]234708 ReleaseTimeline:Release timeline failed, base=0 is invalid, valid value=0x10a8c0
  70244:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.749.322 [api_error.cc:888]234708 EventRecord:Record event failed.
  70245:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.749.330 [api_c.cc:716]234708 rtEventRecord:ErrCode=207007, desc=[driver error:no event resource], InnerCode=0x7020019
  70246:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.749.332 [error_message_manage.cc:53]234708 FuncErrorReason:report error module_type=3, module_name=EE8888
  70247:[ERROR] RUNTIME(234708,acltest_host):2024-07-18-00:06:16.749.335 [error_message_manage.cc:53]234708 FuncErrorReason:rtEventRecord execute failed, reason=[driver error:no event resource]
  70249:[ERROR] ASCENDCL(234708,acltest_host):2024-07-18-00:06:16.749.348 [event.cpp:101]234708 aclrtRecordEvent: record event failed, runtime result = 207007

• Example of the log in the old version

  

Possible Cause

No more event ID resource is available.

Solution

For synchronous tasks between streams, the event ID resources can be reused as follows: After the aclrtRecordEvent and aclrtStreamWaitEvent APIs are called, if the specified event is complete, the aclrtResetEvent API needs to be called in time to free the event resource that is no longer needed.

You need to optimize the code logic based on the event ID reuse process.