Functions

__device__ ​ __half __habs ( const __half a )

Calculates the absolute value of input half number and returns the result.

Parameters

a

- half. Is only being read.

Returns

half

• The

  absolute value of a.

Description

Calculates the absolute value of input half number and returns the result.

__device__ ​ __half __hadd ( const __half a, const __half b )

Performs half addition in round-to-nearest-even mode.

Description

Performs half addition of inputs a and b, in round-to-nearest-even mode.

__device__ ​ __half __hadd_sat ( const __half a, const __half b )

Performs half addition in round-to-nearest-even mode, with saturation to [0.0, 1.0].

Parameters

a

- half. Is only being read.

b

- half. Is only being read.

Returns

half

• The

  sum of a and b, with respect to saturation.

Description

Performs half add of inputs a and b, in round-to-nearest-even mode, and clamps the result to range [0.0, 1.0]. NaN results are flushed to +0.0.

__device__ ​ __half __hdiv ( const __half a, const __half b )

Performs half division in round-to-nearest-even mode.

Description

Divides half input a by input b in round-to-nearest mode.

__device__ ​ __half __hfma ( const __half a, const __half b, const __half c )

Performs half fused multiply-add in round-to-nearest-even mode.

Description

Performs half multiply on inputs a and b, then performs a half add of the result with c, rounding the result once in round-to-nearest-even mode.

__device__ ​ __half __hfma_relu ( const __half a, const __half b, const __half c )

Performs half fused multiply-add in round-to-nearest-even mode with relu saturation.

Parameters

a

- half. Is only being read.

b

- half. Is only being read.

c

- half. Is only being read.

Returns

half

• The

  result of fused multiply-add operation on a, b, and c with relu saturation.

Description

Performs half multiply on inputs a and b, then performs a half add of the result with c, rounding the result once in round-to-nearest-even mode. Then negative result is clamped to 0. NaN result is converted to canonical NaN.

__device__ ​ __half __hfma_sat ( const __half a, const __half b, const __half c )

Performs half fused multiply-add in round-to-nearest-even mode, with saturation to [0.0, 1.0].

Parameters

a

- half. Is only being read.

b

- half. Is only being read.

c

- half. Is only being read.

Returns

half

• The

  result of fused multiply-add operation on a, b, and c, with respect to saturation.

Description

Performs half multiply on inputs a and b, then performs a half add of the result with c, rounding the result once in round-to-nearest-even mode, and clamps the result to range [0.0, 1.0]. NaN results are flushed to +0.0.

__device__ ​ __half __hmul ( const __half a, const __half b )

Performs half multiplication in round-to-nearest-even mode.

Description

Performs half multiplication of inputs a and b, in round-to-nearest mode.

__device__ ​ __half __hmul_sat ( const __half a, const __half b )

Performs half multiplication in round-to-nearest-even mode, with saturation to [0.0, 1.0].

Parameters

a

- half. Is only being read.

b

- half. Is only being read.

Returns

half

• The

  result of multiplying a and b, with respect to saturation.

Description

Performs half multiplication of inputs a and b, in round-to-nearest mode, and clamps the result to range [0.0, 1.0]. NaN results are flushed to +0.0.

__device__ ​ __half __hneg ( const __half a )

Negates input half number and returns the result.

Description

Negates input half number and returns the result.

__device__ ​ __half __hsub ( const __half a, const __half b )

Performs half subtraction in round-to-nearest-even mode.

Description

Subtracts half input b from input a in round-to-nearest mode.

__device__ ​ __half __hsub_sat ( const __half a, const __half b )

Performs half subtraction in round-to-nearest-even mode, with saturation to [0.0, 1.0].

Parameters

a

- half. Is only being read.

b

- half. Is only being read.

Returns

half

• The

  result of subtraction of b from a, with respect to saturation.

Description

Subtracts half input b from input a in round-to-nearest mode, and clamps the result to range [0.0, 1.0]. NaN results are flushed to +0.0.