1.2.6. Bfloat16 Math Functions
[Bfloat16 Precision Intrinsics]
To use these functions, include the header file cuda_bf16.h in your program.
Functions
- __device__  __nv_bfloat16 hceil ( const __nv_bfloat16 h )
 - Calculate ceiling of the input argument.
 - __device__  __nv_bfloat16 hcos ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 cosine in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hexp ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 natural exponential function in round-to-nearest mode.
 - __device__  __nv_bfloat16 hexp10 ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 decimal exponential function in round-to-nearest mode.
 - __device__  __nv_bfloat16 hexp2 ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 binary exponential function in round-to-nearest mode.
 - __device__  __nv_bfloat16 hfloor ( const __nv_bfloat16 h )
 - Calculate the largest integer less than or equal to h.
 - __device__  __nv_bfloat16 hlog ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 natural logarithm in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hlog10 ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 decimal logarithm in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hlog2 ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 binary logarithm in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hrcp ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 reciprocal in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hrint ( const __nv_bfloat16 h )
 - Round input to nearest integer value in nv_bfloat16 floating-point number.
 - __device__  __nv_bfloat16 hrsqrt ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 reciprocal square root in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hsin ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 sine in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hsqrt ( const __nv_bfloat16 a )
 - Calculates nv_bfloat16 square root in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 htrunc ( const __nv_bfloat16 h )
 - Truncate input argument to the integral part.
 
Functions
- __device__  __nv_bfloat16 hceil ( const __nv_bfloat16 h )
 - 
                           Calculate ceiling of the input argument.
Parameters
- h
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
smallest integer value not less than h.
 
Description
Compute the smallest integer value not less than h.
 - __device__  __nv_bfloat16 hcos ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 cosine in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
cosine of a.
 
Description
Calculates nv_bfloat16 cosine of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hexp ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 natural exponential function in round-to-nearest mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
natural exponential function on a.
 
Description
Calculates nv_bfloat16 natural exponential function of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hexp10 ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 decimal exponential function in round-to-nearest mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
decimal exponential function on a.
 
Description
Calculates nv_bfloat16 decimal exponential function of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hexp2 ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 binary exponential function in round-to-nearest mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
binary exponential function on a.
 
Description
Calculates nv_bfloat16 binary exponential function of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hfloor ( const __nv_bfloat16 h )
 - 
                           Calculate the largest integer less than or equal to h.
Parameters
- h
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
largest integer value which is less than or equal to h.
 
Description
Calculate the largest integer value which is less than or equal to h.
 - __device__  __nv_bfloat16 hlog ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 natural logarithm in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
natural logarithm of a.
 
Description
Calculates nv_bfloat16 natural logarithm of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hlog10 ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 decimal logarithm in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
decimal logarithm of a.
 
Description
Calculates nv_bfloat16 decimal logarithm of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hlog2 ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 binary logarithm in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
binary logarithm of a.
 
Description
Calculates nv_bfloat16 binary logarithm of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hrcp ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 reciprocal in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
reciprocal of a.
 
Description
Calculates nv_bfloat16 reciprocal of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hrint ( const __nv_bfloat16 h )
 - 
                           Round input to nearest integer value in nv_bfloat16 floating-point number.
Parameters
- h
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
nearest integer to h.
 
Description
Round h to the nearest integer value in nv_bfloat16 floating-point format, with bfloat16way cases rounded to the nearest even integer value.
 - __device__  __nv_bfloat16 hrsqrt ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 reciprocal square root in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
reciprocal square root of a.
 
Description
Calculates nv_bfloat16 reciprocal square root of input a in round-to-nearest mode.
 - __device__  __nv_bfloat16 hsin ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 sine in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
sine of a.
 
Description
Calculates nv_bfloat16 sine of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 hsqrt ( const __nv_bfloat16 a )
 - 
                           Calculates nv_bfloat16 square root in round-to-nearest-even mode.
Parameters
- a
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
square root of a.
 
Description
Calculates nv_bfloat16 square root of input a in round-to-nearest-even mode.
 - __device__  __nv_bfloat16 htrunc ( const __nv_bfloat16 h )
 - 
                           Truncate input argument to the integral part.
Parameters
- h
 - - nv_bfloat16. Is only being read.
 
Returns
nv_bfloat16
- The 
                                       
truncated integer value.
 
Description
Round h to the nearest integer value that does not exceed h in magnitude.