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libdevice User's Guide (PDF) - CUDA Toolkit v5.5 for POWER8 (older) - Last updated January 10, 2015 - Send Feedback

3.148. __nv_fmaf_ru

Prototype:

float @__nv_fmaf_ru(float %x, float %y, float %z) 

Description:

Computes the value of x × y + z as a single ternary operation, rounding the result once in round-up (to positive infinity) mode.

Returns:

Returns the rounded value of x × y + z as a single operation.
  • __nv_fmaf_ru( ± , ± 0 , z) returns NaN.

  • __nv_fmaf_ru( ± 0 , ± , z) returns NaN.

  • __nv_fmaf_ru(x, y, ) returns NaN if x × y is an exact + .

  • __nv_fmaf_ru(x, y, + ) returns NaN if x × y is an exact .

Note:

For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-1.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes


libdevice User's Guide (PDF) - CUDA Toolkit v5.5 for POWER8 (older) - Last updated January 10, 2015 - Send Feedback