Applicable Products

Product	Supported (√/x)
Ascend 950PR/Ascend 950DT	√
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas training products	√
Atlas inference products	√
Atlas 200I/500 A2 inference products	√

Description

Queries the overflow status of tasks on all streams in the current device and copies the status value to the device memory that you requested. This API is asynchronous.

Prototype

C Prototype

aclError aclrtGetOverflowStatus(void *outputAddr, size_t outputSize, aclrtStream stream)

Python Function

ret = acl.rt.get_overflow_status(outputAddr, outputSize, stream)

Parameters

Parameter	Description
outputAddr	Int, user-allocated device memory, which needs to be allocated by calling acl.rt.malloc. To view data on the host, call acl.rt.memcpy or acl.rt.memcpy_async to transfer data from the device to the host.
outputSize	Int, size of the device memory to be allocated, in bytes. The fixed size is 64 bytes.
stream	Int, pointer address of a stream to deliver an overflow status query task.

Return Values

Return Value	Description
ret	Int, error code. 0 on success; else, failure.

Restrictions

This API is asynchronous. The API call delivers a task rather than executes a task. After this API is called, call the synchronization API (for example, acl.rt.synchronize_stream) to ensure that the task is complete.

For the following product models, the overflow status queried by this API is at the process level.