Pb to Stop my application after long time of use!

Question

Hello,
I use LABVIEW 5.01 and I have a problem with the application I made.
This application use a lot of sub VI (Logical I/O, RS232, sequential...).
When this application is running during many hours (More than 1 Day),
it's very long to quit the appication. A white screen appears and the CPU
time
is used at 100% during 2 or 3 minutes.
This problem does not appear if the application is run during a short time.
Did somebody already have this problem?
How to resolve it?
D.BOISSET

Answer 1

Craig Graham wrote in message
news:8d4es9$cr6$[email protected]..
>
> > Another possibility is that there are lots of open I/O sessions that are
> not
> > being closed. Again, on exit, LV will release them back to the OS.
These
> > are a bit harder to find/detect, but they can either be closed when you
> are
> > finished with them, or you can open them outside the loop so that fewer
of
> > them are allocated.
>
> Another possibility, if it's Win95/98, is that the memory pool is becoming
> fragmented by frequent allocation/deallocation of large arrays, causing a
> gradual degradation in machine performance over time. If you use large
> arrays in there, it may be better to allocate them beforehand and use
> "replace
array element" rather than allocating on the fly by using "build
> array" or having arrays built at the output of a loop.
>
In system.ini or autoexec.bat you set the the disk cache size to maximum
value. If you dont do this win95 will increase the disk cache size below the
RAM amount.... I had similar problems when trying to collect 200 ksamples/S
on P133 notebook for 20 sec, then it took ten minutes before writing to disk
stopped. You can check the mem useage by runing sysmon.exe.
Anders Björk
Analytical Chemistry
Royal Inst. of Technology
Stockholm
Sweden