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From: tmoran@acm.org
Subject: Re: Is ther any sense in *= and matrices?
Date: Tue, 10 Jun 2003 19:00:34 GMT
Date: 2003-06-10T19:00:34+00:00	[thread overview]
Message-ID: <mVpFa.110557$DV.125036@rwcrnsc52.ops.asp.att.net> (raw)

To summarize some of the benchmarks of A=A+B vs A+=B, 3x3 matrices, 10**7 iterations
A=A+B  A+=B  ratio
55      19    2.9     Russ's special code on Sunblade, slightly faster than
                      an 866MHz Pentium III according to
                      http://www.phys.ocean.dal.ca/~kelley/linux/benchmark/benchmark_POM.html
4.4      3.3  1.3     MSVC++5.0 simple code on Tom's 866MHz Pentium III
1.4      0.8  1.6     Gnat 3.15p on Tom's 866MHz Pentium III
1.1      0.7  1.6     g++.5.8 (GCC) 3.2.2 using C templates on Hyman's "Sun workstation", speed unspecified
0.45     0.18 2.5     Ole-Hjalmar's machine ? gcc Ada or C the same?



             reply	other threads:[~2003-06-10 19:00 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-10 19:00 tmoran [this message]
2003-06-10 19:37 ` Is ther any sense in *= and matrices? Ole Kristensen
2003-06-10 19:37 ` Ole Kristensen
2003-06-10 19:48 ` Ole Kristensen
  -- strict thread matches above, loose matches on Subject: below --
2003-06-05 10:45 Preben Randhol
2003-06-05 11:13 ` Vinzent Hoefler
2003-06-05 11:28   ` Preben Randhol
2003-06-05 11:53     ` Vinzent Hoefler
2003-06-05 15:27       ` Preben Randhol
2003-06-05 15:40         ` Vinzent Hoefler
2003-06-05 15:47           ` Preben Randhol
2003-06-05 16:38             ` Vinzent Hoefler
2003-06-05 17:16               ` Preben Randhol
2003-06-05 17:17               ` Preben Randhol
2003-06-05 17:59                 ` Vinzent Hoefler
2003-06-07 19:38             ` Russ
2003-06-08  6:46               ` John R. Strohm
2003-06-08 18:51                 ` Russ
2003-06-08 20:52                   ` tmoran
2003-06-09  4:24                     ` Russ
2003-06-09  5:13                       ` John R. Strohm
2003-06-10  9:38                         ` Ole-Hjalmar Kristensen
2003-06-10 16:11                           ` Wesley Groleau
2003-06-10 19:24                             ` Ole Kristensen
2003-06-10 18:33                           ` Russ
2003-06-10 23:16                             ` John R. Strohm
2003-06-09  6:58                       ` tmoran
2003-06-08 22:23                   ` John R. Strohm
2003-06-09  6:06                     ` Russ
2003-06-09 10:06                       ` Mango Jones
2003-06-08 22:56                   ` Bobby D. Bryant
2003-06-09  4:27                     ` Russ
2003-06-09  5:17                       ` John R. Strohm
2003-06-09 14:53                       ` Bobby D. Bryant
2003-06-09 17:46                         ` Russ
2003-06-10  9:57                           ` Ole-Hjalmar Kristensen
2003-06-05 12:33     ` John R. Strohm
2003-06-05 19:25   ` Wesley Groleau
2003-06-05 20:17     ` David C. Hoos
2003-06-05 20:52       ` Wesley Groleau
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