diff options
| author | Zhang, Jun <jun.zhang@intel.com> | 2023-09-22 23:56:37 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2023-10-12 12:47:17 +0800 |
| commit | e1e127de18dbee47b88fa0ce74a1c7f4d658dc68 (patch) | |
| tree | f0d8d505d9b76802e6068f9bb25f99b0383b2934 /include | |
| parent | 6a3302a41a6bbae706a7b688c446fe60383322fc (diff) | |
x86: set spincount 1 for x86 hybrid platform
By test, we find in hybrid platform spincount 1 is better.
Use '-march=native -Ofast -funroll-loops -flto',
results as follows:
spec2017 speed RPL ADL
657.xz_s 0.00% 0.50%
603.bwaves_s 10.90% 26.20%
607.cactuBSSN_s 5.50% 72.50%
619.lbm_s 2.40% 2.50%
621.wrf_s -7.70% 2.40%
627.cam4_s 0.50% 0.70%
628.pop2_s 48.20% 153.00%
638.imagick_s -0.10% 0.20%
644.nab_s 2.30% 1.40%
649.fotonik3d_s 8.00% 13.80%
654.roms_s 1.20% 1.10%
Geomean-int 0.00% 0.50%
Geomean-fp 6.30% 21.10%
Geomean-all 5.70% 19.10%
omp2012 RPL ADL
350.md -1.81% -1.75%
351.bwaves 7.72% 12.50%
352.nab 14.63% 19.71%
357.bt331 -0.20% 1.77%
358.botsalgn 0.00% 0.00%
359.botsspar 0.00% 0.65%
360.ilbdc 0.00% 0.25%
362.fma3d 2.66% -0.51%
363.swim 10.44% 0.00%
367.imagick 0.00% 0.12%
370.mgrid331 2.49% 25.56%
371.applu331 1.06% 4.22%
372.smithwa 0.74% 3.34%
376.kdtree 10.67% 16.03%
GEOMEAN 3.34% 5.53%
include/ChangeLog:
PR target/109812
* spincount.h: New file.
libgomp/ChangeLog:
* env.c (initialize_env): Use do_adjust_default_spincount.
* config/linux/x86/spincount.h: New file.
Diffstat (limited to 'include')
| -rw-r--r-- | include/spincount.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/spincount.h b/include/spincount.h new file mode 100644 index 00000000000..9eecfff198d --- /dev/null +++ b/include/spincount.h @@ -0,0 +1,33 @@ +/* Copyright (C) 2023-2023 Free Software Foundation, Inc. + Contributed by Jun Zhang <jun.zhang@intel.com>. + + This file is part of the GNU Offloading and Multi Processing Library + (libgomp). + + Libgomp is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + Under Section 7 of GPL version 3, you are granted additional + permissions described in the GCC Runtime Library Exception, version + 3.1, as published by the Free Software Foundation. + + You should have received a copy of the GNU General Public License and + a copy of the GCC Runtime Library Exception along with this program; + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef GOMP_SPINCOUNT_H +#define GOMP_SPINCOUNT_H 1 + +static inline void do_adjust_default_spincount (void) +{ +} + +#endif /* GOMP_SPINCOUNT_H */ |