Action engine cluster loses data

[vt92]

Something wierd is going on.  I tried several things that made it work, but they don't make sense (as was stated previously).

no data

correct

also correct

Message Edited by vt92 on 09-24-2009 08:51 AM

[vt92]

NI gurus: Is it possible that the data is not being copied into memory properly? 

[smercurio_fc]

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vt92 wrote:

Something wierd is going on.  I tried several things that made it work, but they don't make sense (as was stated previously).

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There is indeed something weird going on. I was incorrect when I said earlier that it was working correctly in 8.2. The issue does indeed seem to be that the data is not being copied. When you do something as trivial as multiplying the array by 1 before wiring it to the Bundle by Name element that forces a memory copy, and that's why that works. I can say that it does work correctly in LabVIEW 2009. 

[RavensFan]

LabVIEW 8.5 introduced the "Always Copy" primitive under Application Control >> Memory Control.  Does using that solve the problem as well?

Message Edited by Ravens Fan on 09-24-2009 11:02 AM

[vt92]

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Ravens Fan wrote:

LabVIEW 8.5 introduced the "Always Copy" primitive under Application Control >> Memory Control.  Does using that solve the problem as well?

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Yes, that also works. 

I noticed that the original version of his vi doesn't show any memory allocation (when using 'Show Buffer Allocation') between the unbundle and the bundle cluster.

[Broken_Arrow]

Avoid Super Clusters ??

[kc64]

I followed your link and found the text "super cluster" but I don't think I really understand it's definition.  I have AEs with more complex and larger clusters that work fine.  Having left out the waveform from the cluster as my final solution, maybe I have unknowingly moved from a super cluster to a non-super cluster.

[Broken_Arrow]

Sounds super. But I agree, the Waveform sub-cluster is not complicated or large. Maybe it's a compiler issue.

[Ben · Accepted solution]

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Broken Arrow wrote:
Sounds super. But I agree, the Waveform sub-cluster is not complicated or large. Maybe it's a compiler issue.

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Otherwise known as a bug as in CAR 131499

that is listed in thebug fixes for LV 2009

Andrey reported it in this thread.

Ben