HcclCommResume

This API is reserved and may be changed in later versions. It is not supported for developers.

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	☓

For Atlas A2 training product / Atlas A2 inference product , only the Atlas 800T A2 training server, Atlas 900 A2 PoD cluster basic unit, and Atlas 200T A2 Box16 heterogeneous subrack are supported.

Function

Resumes the status of a communicator.

If you call the HcclCommSuspend or aclrtDeviceTaskAbort API to suspend a communicator, you need to call this API to resume the communicator to the normal state after the fault is rectified.

Prototype

      
           HcclResult HcclCommResume(HcclComm comm)

Parameters

Parameter	Input/Output	Description
comm	Input	Communicator to be resumed to the normal state. For details about the definition of the HcclComm type, see HcclComm.

Parameter

Input/Output

Description

comm

Input

Communicator to be resumed to the normal state.

For details about the definition of the HcclComm type, see HcclComm.

Returns

HcclResult: HCCL_SUCCESS on success, or else failure.

Constraints

Before calling this API, call the aclrtDeviceTaskAbort API provided by acl to stop task execution on the device.
Before calling this API to resume the communicator status, you need to perform cluster synchronization.

Parent topic: C APIs