High memory usage

[MATSe]

When upgrading to Wildfire2 from 2000i we experienced some performance problem before the models were saved in W2 format. However that was an easy fix. The migration was otherwise very smooth and W2 is a bog step forward.

Using WinNT before we had crashes at around 1.7 GB used memory. Now with XP we were hoping to be able to use up to 2.8 GB. However we have crashes at 2.2 GB.
The biggest problem is that it seams that the memory usage is running up illogical high when a model is opened.
A cut on a drawing on a simplified representation of a model not bigger than 400 MB makes the program to crash. This is even worse than 2000i!
Also sometimes when placing a dimension on a drawing the program almost stops to respond when trying to pan or zoom.

Our IT department said it is possible top increase the process memory limit for xtop.exe to 3 GB instead of default 2. This could help somewhat but is no solution for what seams to be an abnormal increase of memory usage.

Anyone have any experiences of big models and memory usage in W2?

 

[pobang]

Hi
Please let me know about pro/e on xp.
An assembly that opens in 4 minutes with search paths on nt opens in 2 hours on xp.
POBang

 

[seymours2571]

MATSe,

A 400MB model is a big model. You might be stuck. Much of the memory limitation has to deal with the 32bit operating system. I believe ptc has created a version of ProE that is 64 bit capable, but you would have to purchase a 64 bit machine. UNIX computers, from my understanding, have always been 64bit.

The 3GB memory switch available in WindowsXP does work. I have used it before to get me out of a bind. However, my graphics suffered. And, some other programs on my computer were unable to run.

If you must continue to work with large models, you might have to step upto a 64bit machine. I don't think PTC officially suports either of the windows bases 64bit chips (AMD and Intel).

I have also heard that there are versions of Windows 2000 available that have a memory switch called the PAE. Apparently, it is supposed to allow progams to have access to greater than 4GB of memory (2GB program and 2GB kernal operation). If anyone else knows anything about this or has had some experience it would be great if they would comment.

Hope this helps.

Steve