GetHcclContext

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

Obtains the context (message area) address of a communicator with the specified index.

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

**Table 1** Template 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.

Returns the context (message area) address of a specified communicator.

Currently, a maximum of two communicators are supported.

GM_ADDR contextGM = AscendC::GetHcclContext<0>();

Parent topic: HCCL Context