send command from loop to start a parallell loop

[fred]

Hallo!

In my mainloop that I want running all the time, there is a boolean
or something that starts a parallell loop to the main! I dont want
the second parallell loop to run all the time, only on command! And when the
second loop is done, only the main continue running. Then the second parallell
loop is again ready to run on the "command".

Is there a way to fix that?

Thanks, Fred

[becktho]

Hi Fred

You could use Notifiers. This also allows you to exchange a value between your two loops.

Just have a look at the attachment.

Hope it helps.

Thomas

[chilly_charly]

Unless you really have severe timing problems, a nearly empty timed loop running in parallel does not add a significant pressure over the processor.
Anyway, there is a positive answer to your question. Use an occurence node (belong to the synchronization vi's sub-palette). As you will see in the attached sub-vi, that belongs to more advanced programmation techniques, although I'm not sure that the example is optimal 🙂

[ohiofudu]

Hi Charley,
I was interested in the question but I could not open the zip file,could you please post the vi again???
Regards.
ohiofudu.

[chilly_charly]

Back with .zip...

CC

[fred]

thanks for the tip

[fred]

thanks!

I choose two parallell loops and hopes the processor handles that. The second loop
runs empty most of the time.