HcclGetRankId
Description
Obtains the rank ID of a device in a collective communicator.
Prototype
HcclResult HcclGetRankId(HcclComm comm, uint32_t *rank)
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
comm |
Input |
Communicator where the operation is performed. For details about the definition of the HcclComm type, see HcclComm. |
rank |
Output |
Pointer to the output address of the rank ID in the collective communicator. |
Returns
HcclResult: HCCL_SUCCESS on success; else, failure.
Constraints
None
Applicability
Example
1 2 3 | uint32_t rank; HcclComm comm; HcclGetRankId(comm, &rank); |
Parent topic: Communicator Management