SetCommBlockNum

Function

Sets the number of cores involved in BatchWrite communication.

Prototype

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uint32_t SetCommBlockNum(uint16_t num)

Parameters

Returns

• 0: Setting succeeded.
• Other values: Setting failed.

Restrictions

This API takes effect only when the communication type is HCCL_CMD_BATCH_WRITE on the Atlas A3 training products/Atlas A3 inference products.

Example

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const char *groupName = "testGroup";
uint32_t opType = HCCL_CMD_BATCH_WRITE;
std::string algConfig = "BatchWrite=level0:fullmesh";
uint32_t reduceType = HCCL_REDUCE_SUM;
AscendC::Mc2CcTilingConfig mc2CcTilingConfig(groupName, opType, algConfig, reduceType);
mc2CcTilingConfig.SetCommBlockNum(24U);