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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/43829] Scalarization of reductions
Date: Mon, 28 Jun 2010 09:36:00 -0000 [thread overview]
Message-ID: <20100628093555.29342.qmail@sourceware.org> (raw)
In-Reply-To: <bug-43829-10053@http.gcc.gnu.org/bugzilla/>
------- Comment #26 from rguenth at gcc dot gnu dot org 2010-06-28 09:35 -------
(In reply to comment #21)
> With the patch in comment #19, the test suite pass with -m32 and -m64, but for
> gfortran.dg/transpose_2.f90 which needs an adjustment of the dg-error.
>
> AFAICT the SUM of the different tests are scalarized (it would be interesting
> to have some timings before and after the patch for 465.tonto).
Estimated Estimated
Base Base Base Peak Peak Peak
Benchmarks Ref. Run Time Ratio Ref. Run Time Ratio
-------------- ------ --------- --------- ------ --------- ---------
465.tonto 9840 390 25.2 S 9840 361 27.3 S
465.tonto 9840 391 25.2 S 9840 361 27.3 *
465.tonto 9840 390 25.2 * 9840 362 27.2 S
==============================================================================
465.tonto 9840 390 25.2 * 9840 361 27.3 *
base is trunk r161367, peak is trunk r161367 + the patch from comment #19.
Flags are -O3 -ffast-math -funroll-loops -march=core2, executed on an
iCore7 @ 3.3GHz.
Thus your patch improves performance by 7.5% which is very nice and even
above what I expected (compared to manual source manipulation of the
hottest SUM).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43829
next prev parent reply other threads:[~2010-06-28 9:36 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-21 12:24 [Bug fortran/43829] New: " rguenth at gcc dot gnu dot org
2010-04-21 12:52 ` [Bug fortran/43829] Scalarization of reductions with Fortran array expressions steven at gcc dot gnu dot org
2010-04-21 13:08 ` [Bug fortran/43829] Scalarization of reductions rguenth at gcc dot gnu dot org
2010-04-21 14:27 ` rguenth at gcc dot gnu dot org
2010-04-22 8:35 ` rguenth at gcc dot gnu dot org
2010-04-22 14:00 ` rguenth at gcc dot gnu dot org
2010-04-22 15:40 ` rguenth at gcc dot gnu dot org
2010-04-23 16:09 ` rguenth at gcc dot gnu dot org
2010-05-04 23:08 ` mikael at gcc dot gnu dot org
2010-05-05 5:08 ` pault at gcc dot gnu dot org
2010-05-05 15:44 ` rguenth at gcc dot gnu dot org
2010-05-22 19:36 ` mikael at gcc dot gnu dot org
2010-06-25 9:28 ` mikael at gcc dot gnu dot org
2010-06-25 9:34 ` mikael at gcc dot gnu dot org
2010-06-25 9:37 ` mikael at gcc dot gnu dot org
2010-06-25 9:42 ` mikael at gcc dot gnu dot org
2010-06-25 9:45 ` rguenther at suse dot de
2010-06-25 22:09 ` dominiq at lps dot ens dot fr
2010-06-26 9:06 ` mikael at gcc dot gnu dot org
2010-06-27 12:42 ` mikael at gcc dot gnu dot org
2010-06-27 12:50 ` mikael at gcc dot gnu dot org
2010-06-27 19:20 ` dominiq at lps dot ens dot fr
2010-06-27 19:45 ` burnus at gcc dot gnu dot org
2010-06-27 20:05 ` dominiq at lps dot ens dot fr
2010-06-27 21:30 ` dominiq at lps dot ens dot fr
2010-06-28 4:28 ` paul dot richard dot thomas at gmail dot com
2010-06-28 9:36 ` rguenth at gcc dot gnu dot org [this message]
2010-09-08 11:29 ` dominiq at lps dot ens dot fr
2010-09-08 17:21 ` mikael at gcc dot gnu dot org
2010-09-13 9:09 ` dominiq at lps dot ens dot fr
2010-09-13 17:10 ` mikael at gcc dot gnu dot org
[not found] <bug-43829-4@http.gcc.gnu.org/bugzilla/>
2011-02-07 18:53 ` mikael at gcc dot gnu.org
2011-02-07 18:58 ` mikael at gcc dot gnu.org
2011-03-01 15:41 ` dominiq at lps dot ens.fr
2011-03-04 23:15 ` mikael at gcc dot gnu.org
2011-10-04 13:18 ` matz at gcc dot gnu.org
2011-10-04 16:05 ` paul.richard.thomas at gmail dot com
2011-10-04 21:57 ` mikael at gcc dot gnu.org
2011-10-05 6:41 ` paul.richard.thomas at gmail dot com
2011-10-05 14:11 ` burnus at gcc dot gnu.org
2011-10-05 18:12 ` mikael at gcc dot gnu.org
2011-10-08 16:28 ` mikael at gcc dot gnu.org
2011-10-08 16:31 ` mikael at gcc dot gnu.org
2011-10-08 17:58 ` mikael at gcc dot gnu.org
2011-10-09 9:48 ` paul.richard.thomas at gmail dot com
2011-10-09 16:02 ` dominiq at lps dot ens.fr
2011-10-09 16:45 ` mikael at gcc dot gnu.org
2011-10-10 9:06 ` rguenther at suse dot de
2011-11-04 0:31 ` mikael at gcc dot gnu.org
2011-11-04 0:46 ` mikael at gcc dot gnu.org
2011-11-04 1:08 ` mikael at gcc dot gnu.org
2011-11-04 1:11 ` mikael at gcc dot gnu.org
2011-11-26 6:51 ` mikael at gcc dot gnu.org
2012-03-04 19:14 ` mikael at gcc dot gnu.org
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