[Gmp-commit] /var/hg/gmp: Tweaked tuning setup for hgcd_appr.

[mercurial at gmplib.org]

details:   /var/hg/gmp/rev/9069d170e53b
changeset: 14437:9069d170e53b
user:      Niels M?ller <nisse at lysator.liu.se>
date:      Sun Nov 13 20:24:47 2011 +0100
description:
Tweaked tuning setup for hgcd_appr.

diffstat:

 ChangeLog     |  6 ++++++
 tune/tuneup.c |  4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diffs (34 lines):

diff -r ed53ca76f9bd -r 9069d170e53b ChangeLog
--- a/ChangeLog	Fri Nov 11 23:37:19 2011 +0100
+++ b/ChangeLog	Sun Nov 13 20:24:47 2011 +0100
@@ -1,3 +1,9 @@
+2011-11-13  Niels Möller  <nisse at lysator.liu.se>
+
+	* tune/tuneup.c (tune_hgcd_appr): Use default min_size.
+	(tune_hgcd_reduce): Increase max_size and step_factor, to 7000
+	and 0.04, respectively.
+
 2011-11-11  Torbjorn Granlund  <tege at gmplib.org>
 
 	* mpn/powerpc64/mode64/sqr_diag_addlsh1.asm: Remove.
diff -r ed53ca76f9bd -r 9069d170e53b tune/tuneup.c
--- a/tune/tuneup.c	Fri Nov 11 23:37:19 2011 +0100
+++ b/tune/tuneup.c	Sun Nov 13 20:24:47 2011 +0100
@@ -1762,8 +1762,6 @@
   static struct param_t  param;
   param.name = "HGCD_APPR_THRESHOLD";
   param.function = speed_mpn_hgcd_appr;
-  /* We seem to get strange results for small sizes */
-  param.min_size = 30;
   one (&hgcd_appr_threshold, &param);
 }
 
@@ -1774,6 +1772,8 @@
   param.name = "HGCD_REDUCE_THRESHOLD";
   param.function = speed_mpn_hgcd_reduce;
   param.min_size = 30;
+  param.max_size = 7000;
+  param.step_factor = 0.04;
   one (&hgcd_reduce_threshold, &param);
 }