[ET Trac] [Einstein Toolkit] #2068: Support KNL's AVX512 instruction set
Einstein Toolkit
trac-noreply at einsteintoolkit.org
Tue Aug 22 12:56:17 CDT 2017
#2068: Support KNL's AVX512 instruction set
--------------------------+-------------------------------------------------
Reporter: eschnett | Owner:
Type: enhancement | Status: review
Priority: major | Milestone:
Component: Cactus | Version: development version
Resolution: | Keywords:
--------------------------+-------------------------------------------------
Comment (by eschnett):
- Before committing, I will re-run clang-format to ensure the formatting
is right.
- Answers are not approximated, except for functions such as sin and cos
where the IEEE standard does not require accuracy of all bits; in these
cases, I follow the OpenCL standard with respect to accuracy (how many
bits can be wrong, usually at most 4 out of 53). inf and nan might also be
handled differently. However, in particular basic arithmetic and square
roots are correct in all digits. fma might or might not round between
multiplying and adding. So, in the absence of trigonometric functions, the
answer is "yes, result will be the same".
--
Ticket URL: <https://trac.einsteintoolkit.org/ticket/2068#comment:8>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit
More information about the Trac
mailing list