cpu usage

[Anonymous]

Ok so i'm having issues with a computer with a processor speed of 4.2Ghz which was recommended to be best for inventor. Now when i go between a sketch and a feature to update things the computer has issues with rendering it to make it show up. My cpu will be at like 20% but at like 106% frequency with the threads climbing to like 9,000 even though the computer doesn't have that many threads. All i'm making is a part for with roughly 60-600 louvers depending on the size of the part. These are not complicated parts but it will take 3 hours to render the part on screen to do anything further to it as soon as i make the louvers in the part. Does anyone have any suggestions on what could be the issues? The program is Inventor 2017 professional on windows 10. I've tried it on windows 7 as well and same thing.

[johnsonshiue]

Hi! Certainly CPU is one of the most important components in a computer when running a program. System RAM and graphics card also play very important roles. Could you tell me how much RAM and what graphics card you have? Do you mind telling me who made the suggestion on CPU?

Many thanks!

[Anonymous]

well your website says 3.0Ghz for minimum and recommended for processor speed and a friend of mine has been building pcs for clients who also use inventor and he put in a 4.2 Ghz i7 processor. the best computer i have right now for processor speed is the i7 with 4.2 Ghz with 16gb of ram and a gtx 1080 graphics card. Now at my work place the computer i have used has a 3.6Ghz i7 processor with 32gb of ram and a k2200? i believe and it does the same thing it takes about 3 hours to render in between features when i use the stamping command to create louvers. Its not a a graphically crazy part either.

[johnsonshiue]

Hi! If possible, I would like to have two pieces of information from you in order to understand the behavior better.

1) Start up Inventor and open a file. Go to Tools -> Application Options -> Hardware -> Diagnostics -> paste it to a text file.

2) The part you are trying to render.

Please send them to me directly (johnson.shiue@autodesk.com).

Many thanks!

[Anonymous]

Okay the part that im trying to render in order to finish it and see what happens for me is i need to edit the louvers feature and select the other row of centerpoints.

[Anonymous]

I tried to send and email but the email will not let me send files over 20mb i will try through another email just in case but i posted that information on here as well.

[salariua]

The file opens quite fast but editing and accepting existing parameters on the louver does lock Inventor.

Just like any perforated plates, I would not model this in Inventor. I would add them as appearance mask and model them on the flat pattern in Autocad if they are needed for cutting or just use the Center Point option to display the location of the punches on the drawing.

I see unfold, louvers from a pattern of (another pattern of ( sketch center points))), refold and inventor then needs to process flat pattern for all this.

3 hours or 20 minutes is still too much for me.

[Anonymous]

Do you have a suggestion on how to add an appearance mask like that? A lot of the parts at my job are using louvers like those. Also do you think maybe its easier if i just do 1 louver then pattern it out as a feature instead of being by sketch? Is there another program out there that does louvers like inventor as well that mite be a little bit easier?

[johnsonshiue]

Hi! I took a look at the sheet metal part. The main reason why update is slow after a parameter is changed is due to flat pattern compute. When folded model is changed, flat pattern will need to be updated. From 2017 and later, you can set flat pattern to deferred (right-click on flat pattern in the browser or go to Tools -> document settings -> modeling). In this way, flat pattern will not be computed automatically. You could reset the flag after you have made all of the changes.

The part contains 6610 faces. It is considered a large part. I don't have access to my desktop machine at the moment since the entire company is shutdown for a week. I will try the rendering on Monday and get back to you with my findings.

Many thanks!

[Anonymous]

with changing that setting in the tools will that make it go faster?

[johnsonshiue]

Hi! Deferring flat pattern update will make folded model to compute much faster at least for this particular case. It is because all the punch features are located within bend zone. When Inventor computes the flat pattern, it would have to do extensive unfoldability check in order to tell if a given face should be unfolded.

Regarding the rendering performance, I think it should be more directly related to GPU speed and graphical RAM. I don't think deferring flat pattern would help rendering.

Many thanks!

[Anonymous]

Ok well it seems to be rendering between features a little faster. It would be awesome if you get the chance to render it on monday and see what you come up with!

Thanks!