1.2.8. Half2 Math Functions
[Half Precision Intrinsics]
To use these functions, include the header file cuda_fp16.h in your program.
Functions
- __device__ __half2 h2ceil ( const __half2 h )
- Calculate half2 vector ceiling of the input argument.
- __device__ __half2 h2cos ( const __half2 a )
- Calculates half2 vector cosine in round-to-nearest-even mode.
- __device__ __half2 h2exp ( const __half2 a )
- Calculates half2 vector exponential function in round-to-nearest-even mode.
- __device__ __half2 h2exp10 ( const __half2 a )
- Calculates half2 vector decimal exponential function in round-to-nearest-even mode.
- __device__ __half2 h2exp2 ( const __half2 a )
- Calculates half2 vector binary exponential function in round-to-nearest-even mode.
- __device__ __half2 h2floor ( const __half2 h )
- Calculate the largest integer less than or equal to h.
- __device__ __half2 h2log ( const __half2 a )
- Calculates half2 vector natural logarithm in round-to-nearest-even mode.
- __device__ __half2 h2log10 ( const __half2 a )
- Calculates half2 vector decimal logarithm in round-to-nearest-even mode.
- __device__ __half2 h2log2 ( const __half2 a )
- Calculates half2 vector binary logarithm in round-to-nearest-even mode.
- __device__ __half2 h2rcp ( const __half2 a )
- Calculates half2 vector reciprocal in round-to-nearest-even mode.
- __device__ __half2 h2rint ( const __half2 h )
- Round input to nearest integer value in half-precision floating-point number.
- __device__ __half2 h2rsqrt ( const __half2 a )
- Calculates half2 vector reciprocal square root in round-to-nearest-even mode.
- __device__ __half2 h2sin ( const __half2 a )
- Calculates half2 vector sine in round-to-nearest-even mode.
- __device__ __half2 h2sqrt ( const __half2 a )
- Calculates half2 vector square root in round-to-nearest-even mode.
- __device__ __half2 h2trunc ( const __half2 h )
- Truncate half2 vector input argument to the integral part.
Functions
- __device__ __half2 h2ceil ( const __half2 h )
-
Calculate half2 vector ceiling of the input argument.
Parameters
- h
- - half2. Is only being read.
Returns
half2
- The vector of smallest integers not less than h.
Description
For each component of vector h compute the smallest integer value not less than h.
- __device__ __half2 h2cos ( const __half2 a )
-
Calculates half2 vector cosine in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise cosine on vector a.
Description
Calculates half2 cosine of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2exp ( const __half2 a )
-
Calculates half2 vector exponential function in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise exponential function on vector a.
Description
Calculates half2 exponential function of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2exp10 ( const __half2 a )
-
Calculates half2 vector decimal exponential function in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise decimal exponential function on vector a.
Description
Calculates half2 decimal exponential function of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2exp2 ( const __half2 a )
-
Calculates half2 vector binary exponential function in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise binary exponential function on vector a.
Description
Calculates half2 binary exponential function of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2floor ( const __half2 h )
-
Calculate the largest integer less than or equal to h.
Parameters
- h
- - half2. Is only being read.
Returns
half2
- The vector of largest integers which is less than or equal to h.
Description
For each component of vector h calculate the largest integer value which is less than or equal to h.
- __device__ __half2 h2log ( const __half2 a )
-
Calculates half2 vector natural logarithm in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise natural logarithm on vector a.
Description
Calculates half2 natural logarithm of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2log10 ( const __half2 a )
-
Calculates half2 vector decimal logarithm in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise decimal logarithm on vector a.
Description
Calculates half2 decimal logarithm of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2log2 ( const __half2 a )
-
Calculates half2 vector binary logarithm in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise binary logarithm on vector a.
Description
Calculates half2 binary logarithm of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2rcp ( const __half2 a )
-
Calculates half2 vector reciprocal in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise reciprocal on vector a.
Description
Calculates half2 reciprocal of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2rint ( const __half2 h )
-
Round input to nearest integer value in half-precision floating-point number.
Parameters
- h
- - half2. Is only being read.
Returns
half2
- The vector of rounded integer values.
Description
Round each component of half2 vector h to the nearest integer value in half-precision floating-point format, with halfway cases rounded to the nearest even integer value.
- __device__ __half2 h2rsqrt ( const __half2 a )
-
Calculates half2 vector reciprocal square root in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise reciprocal square root on vector a.
Description
Calculates half2 reciprocal square root of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2sin ( const __half2 a )
-
Calculates half2 vector sine in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise sine on vector a.
Description
Calculates half2 sine of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2sqrt ( const __half2 a )
-
Calculates half2 vector square root in round-to-nearest-even mode.
Parameters
- a
- - half2. Is only being read.
Returns
half2
- The elementwise square root on vector a.
Description
Calculates half2 square root of input vector a in round-to-nearest-even mode.
- __device__ __half2 h2trunc ( const __half2 h )
-
Truncate half2 vector input argument to the integral part.
Parameters
- h
- - half2. Is only being read.
Returns
half2
- The truncated h.
Description
Round each component of vector h to the nearest integer value that does not exceed h in magnitude.