ICachePreLoad (ISASI)

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	x
Atlas training products	x

Preloads instructions to the iCache from the DDR address where the instructions are located.

__aicore__ inline void ICachePreLoad(const int64_t preFetchLen)

**Table 1** Parameters
Parameter	Input/Output	Description
preFetchLen	Input	Prefetch length. For Atlas A2 training products/Atlas A2 inference products, the unit of preFetchLen is 2 KB. The value must be smaller than the iCache size/2 KB. The iCache sizes of the AIC and AIV are 32 KB and 16 KB, respectively. For Atlas A3 training products/Atlas A3 inference products, the unit of preFetchLen is 2 KB. The value must be smaller than the iCache size/2 KB. The iCache sizes of the AIC and AIV are 32 KB and 16 KB, respectively. For the Atlas inference product's AI Core, this parameter is invalid. The prefetch length is 128 bytes.

None

None

int64_t preFetchLen = 2;
AscendC::ICachePreLoad(preFetchLen);

Parent topic: Cache Control