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(parent: b2b75d4) | patch
Improve performance of MIC exponential
authorErik Lindahl <erik@kth.se>
Wed, 9 Jul 2014 19:14:29 +0000 (21:14 +0200)
committerGerrit Code Review <gerrit@gerrit.gromacs.org>
Wed, 10 Sep 2014 23:00:36 +0000 (01:00 +0200)
commit7df930ee2e1d3bac7d080dfd994417c47fec94db
tree85ec165a065934e89749c119ac814b560d3d8f4etree | snapshot
parentb2b75d45c43c98cf1362e0125381bfc6f0a85782commit | diff
Improve performance of MIC exponential

The limited precision is due to argument scaling
rather than the exponential function lookup, so
instead of iterating we can improve the accuracy
with a simple correction step, similar to what
was done for the recent AVX-512ER implementation.

Change-Id: If55e7c4cefac5022e7211dfa56686cb9ee03a54a
src/gromacs/simd/impl_intel_mic/impl_intel_mic.h diff | blob | history
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