Computing only using 16% of my CPU

Computing only using 16% of my CPU

Anonymous
Not applicable
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Message 1 of 4

Computing only using 16% of my CPU

Anonymous
Not applicable

I got wondering, why Fusion was becoming more and more laggy with my experience on large projects, so I dug in further. It turns out, the computation ran when positioning, or just computation overall, seems to only use 16% of my CPU, which about 1/8th of my CPU (8 threads). I'm not sure on how to reduce this, as I have a good CPU with good single core performance. I7 4790K to be exact.

 

I did recently start to group objects into new components. On my current project, the computation reports only two errors.

 

I did read something about optimizing assemblies, but I'm not going to trawl a 2 hour video for an answer.

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HughesTooling
Consultant
Consultant

There's a bit of info here.

http://forums.autodesk.com/t5/design-validate-document/yellow-warning-on-component-with-no-features-...

 

In general CAD programs don't utilize multiple processors\cores very well. Some parts do like generating meshes, rendering and CAM, but mostly each step in the timeline needs to be done in order.

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Phil.E
Autodesk
Autodesk

@Anonymous

 

https://forums.autodesk.com/t5/design-validate-document/hardware-options-for-working-with-large-files/m-p/6780753#M90108

 

That post has some explanation that might help you. And it also has a white paper about large model performance.

 

To quote the forum post:

 

"There are a few ways to be kind to the CPU in your situation. 

1. Make things unselectable. The reason is the mouse pointer will interact with the CPU as you mouse over things. It's trying to know what you want to select at any moment. So you can right click on components and make them unselectable.

2. Xref components do not participate in Compute. So you could try using inserted xref components. There is a bit of overhead to manage this, so experiment with the workflow to determine what is best for you, and try the other suggestions first."

 

Please let us know how it goes or if you have more questions after this.

 

Regards,





Phil Eichmiller
Software Engineer
Quality Assurance
Autodesk, Inc.


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Message 4 of 4

Anonymous
Not applicable

I changed most of my component to unselectable, but that didn't make much of a difference. I'm not sure about "xRef", but all of the components are linked from other files, and the file in question just brings them all together. 

 

It's not laggy when their's around 10 or so linked components, but when the assembly get's to a point with well over 50 to 100 linked components, it starts to lag. I do see this been an issue with only 1 thread out of 8 only been used..

 

My experience with Fusion 360, is basically "Learn as I go", so my knowledge isn't strong.

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