SetHcclContext

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	x
Atlas inference product's AI Core	√
Atlas inference product's Vector Core	√
Atlas training products	x

Sets the context (message area) address of each communicator of an MC2 operator.

template <uint32_t index>
__aicore__ inline void SetHcclContext(__gm__ uint8_t* context)

**Table 1** Parameters
Parameter	Description
index	A template parameter, which indicates the communicator ID to be set. Currently, only two communicators are supported. index can be 0 or 1.
context	Context (message area) address of the corresponding communicator.

None

Currently, a maximum of two communicators are supported.

// Set the message area address for GROUP_0.
AscendC::SetHcclContext<0>(contextGM);

Parent topic: HCCL Context