SetHF32TransMode

NEAREST_ZERO: FP32 will be rounded toward zero when converted to HF32.
NEAREST_EVEN: FP32 is rounded to the nearest even integer when converted to HF32.

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product AI Core	x
Atlas inference product Vector Core	x
Atlas training product	x

Sets the HF32 rounding mode. You must first enable HF32 rounding mode using SetHF32Mode.

__aicore__ inline void SetHF32TransMode(HF32TransMode mode)

**Table 1** Parameters
Parameter	Input/Output	Description
mode	Input	Input parameter for controlling the MMAD HF32 rounding mode. The value is of the HF32TransMode type. The options are as follows: NEAREST_ZERO: FP32 will be rounded toward zero when converted to HF32. NEAREST_EVEN: FP32 is rounded to the nearest even integer when converted to HF32.

None

None

Set the HF32 rounding mode. You must first enable HF32 rounding mode using SetHF32Mode.

AscendC::SetHF32TransMode(HF32TransMode::NEAREST_ZERO);  

Parent topic: Cube Computation