WIN95 and Mathematica Performance
- To: mathgroup at smc.vnet.net
- Subject: [mg3446] WIN95 and Mathematica Performance
- From: Dieter Baurecht <Dieter.Baurecht at univie.ac.at>
- Date: Fri, 8 Mar 1996 01:30:07 -0500
- Organization: University of Vienna
- Sender: owner-wri-mathgroup at wolfram.com
According to the problems with WIN95 and Mathematica discussed in some postings in this newsgroup, I want to post the answer I got from support-europe at wri.com after telling them my problems with poor performance under Windows 95. > Dear Sir > > Although the version of Mathematica for Windows is not a Windows 95 > application, it should run correctly under Windows 95. However, we have > discovered that Mathematica does run slower under some Windows 95 systems > than it does on a comparable Windows 3.1 system. So far, we have found > two workarounds to the problem. > > 1) Installing a MathLink program gives some performance increase > (although the result is still a reasonably slower than the Windows 3.1 > performance). You can get a sample MathLink program that can be > installed by anonymous FTP to MathSource > > ------------------------------------------ > mathsource.wri.com > ------------------------------------------ > > to get the file > > ------------------------------------------ > /pub/outgoing/Support/addtwo.exe > ------------------------------------------ > > Note that the Support directory is unreadable, but the files inside it > are readable. > > Put "addtwo.exe" it in the Mathematica directory (probably c:\wnmath22) > and then edit the file > > ------------------------------------------ > c:\wnmath22\init.m > ------------------------------------------ > > with a text editor. Add the following line to the end of the init.m file: > > ------------------------------------------ > Install["addtwo"] > ------------------------------------------ > > > 2) There is a set of Unix-like utilities available via anonymous FTP > from several places. Among them are two programs called "nice.exe" and > "ps.exe". You can use the "ps" program to look for a process id > number for the Mathematica kernel. An example ps listing for the kernel > is: > > 690 -492651 NORM 00:00:00 1174:39:54 Mathematica Kernel > > In this case, the process ID number is "-492651". Now, type: > > nice -492651 high > > This will make the kernel run very close to 3.1 speeds. The disadvantage > to this approach is that you have to perform this procedure every time > after you launch Mathematica. If you're interested in this workaround, > then you can get these routines, among other places, via anonymous FTP at > > ------------------------------------------ > ftp.cdrom.com > ------------------------------------------ > > as the file > > ------------------------------------------ > /win95/utils/unix95.zip > ------------------------------------------ > > > Our development group is current working on newer version of Mathematica > that will run at speeds comparable to that of Windows 3.1. This version > is not expected for several weeks. I will have somebody contact you as > soon as this version is ready. > > Your patience in this matter is greatly appreciated. > > Regards - Warren > > **************************************************************************** > * * * > * Warren Boon * Mail: support-europe at wrel.co.uk * > * Technical Support * Tel : +44 (0)1993 883400 * > * Wolfram Research Europe Ltd * Fax : +44 (0)1993 883800 * > * * * > **************************************************************************** -- ******* Dr. Dieter Baurecht, Inst. f. Physikalische Chemie A-1091 Wien - Austria, Althanstr. 14 mailto:Dieter.Baurecht at univie.ac.at ==== [MESSAGE SEPARATOR] ====