From maintainers-request at octave dot org Fri Nov 19 13:40:53 2004
Subject: Re: How to make Octave build and run natively on Windows?
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: "Laurent Mazet" <mazet at secure dot softndesign dot org>
Cc: <maintainers at octave dot org>, "Ole Jacob Hagen" <waterthrill@yahoo.no>,         "David Bateman" <David.Bateman@motorola.com>,         "Laurent Mazet" <laurent.mazet@motorola.com>
Date: Fri, 19 Nov 2004 14:41:00 -0500

On 19-Nov-2004, Laurent Mazet <mazet at secure dot softndesign dot org> wrote:

| As sugested Ole, I run the Octave2 test from
| http://www.sciviews.org/other/benchmark.htm on my MinGW Octave to evaluate

If I'm looking at the same benchmark that you used, then it uses tic
and toc for timing, which is not reliable because it measures
wall-clock time and that can be affected by other processes running on
your system when you run the tests.

| By the way, I realized that the kpathsearch doesn't work properly and I
| have to source all the used functions:
| %%%% Shell function
| %% function get () {
| %%  f="$1".m; find /usr/local/share/octave/2.1.60/m/ -name $f -exec cp {}
|  \;
| %%  sed 's/\(libs={\)/\1"'$1'"; /' Octave2.m >t
| %%  mv -f t Octave2.m
| %% }
| libs={"trace"; "cov"; "corrcoef"; "gcd2"; "strcmp"; "mean"; "rem";
| "is_leap_year"; "isvector"; "etime"; "clock"; "toc"; "tic"; "findstr";
| "split"; "rows"; "setstr"; "isscalar"; "columns"; "repmat"; "deblank";
| "strcat"; "isstr"; "num2str"};
| for n=1:length(libs);
|   source([libs{n}, ".m"]);
| endfor

Can you investigate what might be causing this?  There is extensive
tracing code in the path searching functions that you can enable.

| On the same computer, I run the standard Octave2.m test on octave 2.1.50a
| from  http://octave.sf.net i.e. with octave-forge and a blas optimzed for
| PIII (some segfault on my Duron :-( ):

If the BLAS is optimized for PIII, then couldn't that be the reason
that you are seeing different results rather than it being linked with
Cygwin?  It seems to me that we need a comparison where the only
difference is Cygwin vs. no Cygwin.

jwe