From bug-octave-request at bevo dot che dot wisc dot edu Thu Feb 13 20:00:35 2003
Subject: Re: patch for 64bit version, failed to use more then 2GB per object before
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Mirek Kwasniak <mirek at zind dot ikem dot pwr dot wroc dot pl>
Cc: Paul Kienzle <pkienzle at users dot sourceforge dot net>,    bug-octave@bevo.che.wisc.edu
Date: Thu, 13 Feb 2003 20:00:32 -0600

On 13-Feb-2003, Mirek Kwasniak <mirek at zind dot ikem dot pwr dot wroc dot pl> wrote:

| On Wed, Feb 12, 2003 at 06:56:36PM -0500, Paul Kienzle wrote:
| > Mirek Kwasniak wrote:
| [...]
| > Is the rand() time an octave vs. octave-forge difference?
| > 
| > Paul Kienzle
| > pkienzle at users dot sf dot net
| 
| Ohh, yes :)
| 
|     1024 0.3225
|     2048 1.2999
|     4096 5.1640
|     8192 20.6868
| octave2.1:4> which rand
| rand is the dynamically-linked function from the file
| /usr/lib/octave/2.1.44/oct/i386-pc-linux-gnu/rand.oct
| 
|     1024 0.0526
|     2048 0.2098
|     4096 0.8404
|     8192 4.6976
| >> which rand
| rand is the dynamically-linked function from the file
| /home/mirek/DOK/tmp/prg.lib/octave-forge/octave-forge/FIXES/rand.oct
| 
| octave 2.1.44 from Debian, octave-forge from CVS.

It would be nice to improve the performance of Octave's default random
number generator, but I don't think we can do that if it means
replacing it with a different generator.  Adding other, better
generators is certainly a possibility.

jwe



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