aclrtSetStreamOverflowSwitch

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	☓
Atlas inference product	☓
Atlas training product	☓

Description

Enables or disables the overflow/underflow detection function for a specified stream when the upper-layer training framework (such as PyTorch) is connected in saturation mode. After the function is disabled, you cannot use the overflow/underflow detection operator to check whether a task overflows or underflows.

Prototype

aclError aclrtSetStreamOverflowSwitch(aclrtStream stream, uint32_t flag)

Parameters

Parameter	Input/Output	Description
stream	Input	Stream to be operated. For details about the type definition, see aclrtStream.
flag	Input	Overflow/Underflow detection switch. The options are as follows: 0: disabled. 1: enabled.

Parameter

Input/Output

Description

stream

Input

Stream to be operated. For details about the type definition, see aclrtStream.

flag

Input

Overflow/Underflow detection switch. The options are as follows:

0: disabled.
1: enabled.

Returns

0 on success; otherwise, failure. For details, see aclError.

Restrictions

Before calling this API, you can call aclrtSetDeviceSatMode to set the saturation mode.
The setting takes effect only for tasks created after this API call.

Parent topic: Stream Management