[Gmp-commit] /var/hg/gmp: 2 new changesets

[mercurial at gmplib.org]

details:   /var/hg/gmp/rev/1d3ed6285ee5
changeset: 16858:1d3ed6285ee5
user:      Marco Bodrato <bodrato at mail.dm.unipi.it>
date:      Wed Oct 14 08:27:28 2015 +0200
description:
mpn/x86/p6/sse2/gmp-mparam.h: SQRLO thresholds

details:   /var/hg/gmp/rev/a5fe546688db
changeset: 16859:a5fe546688db
user:      Marco Bodrato <bodrato at mail.dm.unipi.it>
date:      Wed Oct 14 08:28:43 2015 +0200
description:
NEWS: rootrem speedup for small sizes

diffstat:

 NEWS                         |   7 ++++++-
 mpn/x86/p6/sse2/gmp-mparam.h |  19 +++++++++++--------
 2 files changed, 17 insertions(+), 9 deletions(-)

diffs (64 lines):

diff -r 015468f454c8 -r a5fe546688db NEWS
--- a/NEWS	Tue Oct 13 22:39:19 2015 +0200
+++ b/NEWS	Wed Oct 14 08:28:43 2015 +0200
@@ -12,7 +12,8 @@
   SPEEDUPS
   * Speedup for Intel Broadwell.
 
-  * Square root is now faster when the remainder is not needed.
+  * Square root is now faster when the remainder is not needed. Also the speed
+    to compute the k-th root improved, for small sizes.
 
   FEATURES
   * New C++ functions gcd and lcm for mpz_class.
@@ -43,6 +44,10 @@
   * We now use manufacturers' code names for x86 CPUs, e.g., "haswell" instead
     of names derived from the commercial brands.
 
+  * Small improvements and better coverage for the test suite.
+
+  * Minor portability enhancements.
+
   * The various FreeBSD problems listed for 6.0.0 affect this release too.
 
 
diff -r 015468f454c8 -r a5fe546688db mpn/x86/p6/sse2/gmp-mparam.h
--- a/mpn/x86/p6/sse2/gmp-mparam.h	Tue Oct 13 22:39:19 2015 +0200
+++ b/mpn/x86/p6/sse2/gmp-mparam.h	Wed Oct 14 08:28:43 2015 +0200
@@ -159,6 +159,9 @@
 #define MULLO_BASECASE_THRESHOLD             0  /* always */
 #define MULLO_DC_THRESHOLD                  31
 #define MULLO_MUL_N_THRESHOLD            13463
+#define SQRLO_BASECASE_THRESHOLD             0  /* always */
+#define SQRLO_DC_THRESHOLD                 100
+#define SQRLO_SQR_THRESHOLD               9236
 
 #define DC_DIV_QR_THRESHOLD                 25
 #define DC_DIVAPPR_Q_THRESHOLD              55
@@ -180,6 +183,14 @@
 
 #define POWM_SEC_TABLE  2,23,258,879,2246
 
+#define GET_STR_DC_THRESHOLD                13
+#define GET_STR_PRECOMPUTE_THRESHOLD        25
+#define SET_STR_DC_THRESHOLD               582
+#define SET_STR_PRECOMPUTE_THRESHOLD      1118
+
+#define FAC_DSC_THRESHOLD                  178
+#define FAC_ODD_THRESHOLD                   34
+
 #define MATRIX22_STRASSEN_THRESHOLD         17
 #define HGCD_THRESHOLD                      69
 #define HGCD_APPR_THRESHOLD                112
@@ -187,11 +198,3 @@
 #define GCD_DC_THRESHOLD                   386
 #define GCDEXT_DC_THRESHOLD                303
 #define JACOBI_BASE_METHOD                   1
-
-#define GET_STR_DC_THRESHOLD                13
-#define GET_STR_PRECOMPUTE_THRESHOLD        25
-#define SET_STR_DC_THRESHOLD               582
-#define SET_STR_PRECOMPUTE_THRESHOLD      1118
-
-#define FAC_DSC_THRESHOLD                  178
-#define FAC_ODD_THRESHOLD                   34