array memory leak

[adp10390]

Hi,

We've been having a memory leak on a VI that we intend to run for long periods of time. We've isolated the SubVI that is causing the problem (attached), but have not been able to eliminate the memory leak, even with the Request Deallocation VI. Any help here would be much appreciated.

[GerdW]

Hi adp,

wow, such a small vi with so many violations of style guide (Cleaned version attached)

Can you provide sample data (make them default value in the controls)? What kind of memory leak?

[altenbach]

We probably need more information.

• How big ar the arrays?
• Are the sizes always the same?
• What is the subVI supposed to do?
• Do you have some typical data and typical settings?
• Why are the size controls I64?
• Who wrote this VI? It seems to break any common coding guidelines (the LabVIEW 8.6 cleanup tool helps quite a bit to make sense of the diagram).
• What observations led you to suspect a memory leak in this subVI?
• Do you test with the front panel of the subVI open or closed?
• ...

In any case, "request deallocation" is probably not a good idea. That would only make sense if you only call the subVI once and then go on to different tasks.