Compile blocks within nested loops?

Forums Technical Discussion Compile blocks within nested loops?

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kahuna031: Member; 897 posts; Joined: July 2018; Offline

Aug. 16, 2017 4:36 a.m.

I got a feedback loop and inside that a foreach and I'm trying to wrap the inside loop to a compile block. I fail to enclose this properly as it's referencing the per piece geometry from the outside loop - see attachment.

Attachments:
nestedLoopCompile.PNG (104.8 KB)

B.Henriksson, DICE


old_school: Staff; 2540 posts; Joined: July 2005; Offline

Aug. 16, 2017 9:19 a.m.

The compile block doesn't support what you are trying to do. You are forcing the compile block to re-compile every iteration.

Move the compile block around both foreach blocks. This will compile both foreach blocks and run inside the compile block for threading and memory savings.

There's at least one school like the old school!


kahuna031: Member; 897 posts; Joined: July 2018; Offline

Aug. 16, 2017 9:26 a.m.

Will the inside loop be threaded within the outside loop iterations even though the compile block is wrapping the outer? That goes against my understanding of what the compile block is, I thought it was a single operation?

B.Henriksson, DICE


kahuna031: Member; 897 posts; Joined: July 2018; Offline

Aug. 16, 2017 9:34 a.m.

This is failing too. Is it the two stream inputs that kills it?

Attachments:
nestedLoopCompile2.PNG (152.7 KB)

B.Henriksson, DICE


jsmack: Member; 7801 posts; Joined: Sept. 2011; Offline

Aug. 16, 2017 1:39 p.m.

Wires can't cross convex hulls with compiled blocks. Use fetch input nodes to prevent any contaminated lines.


kahuna031: Member; 897 posts; Joined: July 2018; Offline

Aug. 16, 2017 1:45 p.m.

You mean the “block begin” nodes? That's what I'm using in the picture?

If that's what you're refering to I don't understand how I should design the network to not cross the hulls when I'm passing geo from the outer loop to the inner?

B.Henriksson, DICE


jsmack: Member; 7801 posts; Joined: Sept. 2011; Offline

Aug. 16, 2017 2:36 p.m.

You need to make forloop begin nodes, set to ‘fetch input’ to pass from the outer to inner loop.


kahuna031: Member; 897 posts; Joined: July 2018; Offline

Aug. 16, 2017 2:54 p.m.

Of course! Thanks so much, really needed that last push. Here's the final setup for anyone who runs into the same issue.

Edited by kahuna031 - Aug. 16, 2017 14:54:34

Attachments:
nestedLoopCompile3.PNG (58.3 KB)

B.Henriksson, DICE

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