parallel processing: for loop unfolding

[Pier Paolo]

Hallo,

I've a "for" loop runnin on this system:LabVIEW2009, windows7, intel i7.

I wonder if and how I can tell to LabVIEW that it would be allowd to execute the different iterations of the loop at the same time (in parallel) on my 8 cores processor.

Now it execute the next iteration when it finish the previous one even if is there no dependecies within the iterations. 

I'd like give a "property" to the loop that mean it can be "unfolded" for parallel execution.

Thanks

Pier

[Ben · Accepted solution]

pop-up on For loop and select "Configure interation Prallelism"

Enable it.

Wire a number to the new "P" input to specify how many CPUs to spread it across.

ben

[Pier Paolo]

Thanks!

Does it works only if I compile the VI? I do not see any difference in the usage of the processors: still 40% in average.

[Ben]

Set the windows task manager to show a seprate graph for each core. That will show if the load is be shared.

Ben

[laurentp]

Hi Pier,

If you want a complete documentation about Parallel For loop, have a look at the what's new in LabVIEW 2009 Link

Regards,

Laurent