libdevice User's Guide (PDF) - CUDA Toolkit v5.5 (older) - Last updated May 11, 2013 - Send Feedback

3.42. __nv_dmul_rn

Prototype:

double @__nv_dmul_rn(double %x, double %y) 

Description:

Multiplies two floating point values x and y in round-to-nearest-even mode.

Returns:

Returns x * y.

Note:

For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-2.

This operation will never be merged into a single multiply-add instruction.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes


libdevice User's Guide (PDF) - CUDA Toolkit v5.5 (older) - Last updated May 11, 2013 - Send Feedback