Computer related problem

[Sicelo]

I have a general question about computers. I am using Labview to control how a reactor opens and closes valves to deposit gaseous materials on a surface. The labview program runs fine in the first few minutes (first 20) but as I repeat the number of deposition cycles, the whole program freezes and I always have to restart the computer. I think this is a computer related problem not Labview's fault. Any ideas on how I can fix that? Thanks a lot.

Sicelo

[Ben]

Use the Windows Task manager to monitor the CPU and memory usage while you code runs.

What you should loof for is;

Is memory usage increasing?

Is CPU usage increasing?

After you know what is happening post your code and what you found to get more hints.

Ben

[JÞB]

After you do as Ben suggests.  look through your code for:

• Resources initialized repeatedly (DAQ tasks should be created ONCE, instruments Initialized ONCE...)
• References you opened and did not close (Some you don't need to worry about but some you do!)  Ben will probably post a link but a forum search would find a few points. (Check Ben's Tag cloud)
• data structures (Arrays or Strings) that keep growing and growing demanding larger and larger buffers eating up huge chunks in memory

[Sicelo]

The program is currently running. I closed off everything else on the computer.

CPU usage:10-14%

Memory usage: 1.13 GB

Both of these are not increasing but I know that after 20 minutes the program freezes anf does not respond anymore.

Thanks.

-Sicelo

[Ben]

---

@Sicelo wrote:

The program is currently running. I closed off everything else on the computer.

CPU usage:10-14%

Memory usage: 1.13 GB

Both of these are not increasing but I know that after 20 minutes the program freezes anf does not respond anymore.

Thanks.

-Sicelo

---

Check it again after 19 minute 30 seconds.

Ben

[JÞB]

then its probably unnecessary re-creation of DAQ Tasks or re-itnitialization of instruments