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Massive performance drop after replacing parts with ContentCenter parts (IV2014)

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Message 1 of 4
bshbsh
332 Views, 3 Replies

Massive performance drop after replacing parts with ContentCenter parts (IV2014)

Hello all,

we're having a massive problem. We've been using our own "parts library", mostly for fasteners (bolts, nuts, washers, pins, etc.) We need to change these to a custom ContentCenter which includes these parts' equivalents.

The problem is, on several large(ish) assemblies (with say over 10k occurences of 1-2000 unique parts), which were opening and working just fine before, now after replacing the old parts with the parts from the CC, the assemblies become so slow that they are kinda unusable. Some open in say 15 minutes, but there are some that don't open in 2 hours!

At first I thought this is because the broken constraints, but after fixing them all, it is still dead slow. Then I thought there might be a problem with the CC parts (and everything else too) being on a server, which may cause performance issues with CC parts somehow, I did a pack'n'go with everything to a local ssd: it is still unusably slow. Also tried deleting all unused styles etc, which didn't help either.

When opening these assemblies, they open in Express mode, and are as fast as expected. But going to Full mode, they start to load the rest of the data (as seen in Taskmanager), but once everything is loaded then this stops, and only 1 cpu core is working at 100%, nothing else happens. This may take from 15 minutes to hours. Also tried opening straight into Full mode, same result.

Tried opening in different reduced LODs, but that doesn't help either. Changing LODs or positional reps or presentational reps once the model is open is again taking ages. Suppressing CC components doesn't change anything either.

Once the model is loaded, 3D performance is good. Tried everything on different computers so it's not the problem on a specific one. RAM is nowhere near half its capacity.

Strangely, I can open the large drawings of these large assemblies, and they update just fine, now extreme slowdown there. Similarly, I can run macros all over the thing and it works fast. I can do a pack'n'go and it is as fast as it used to be. The slowness happens basically when the full data needs to be loaded, somewhere during this it hits a wall or goes into a veeeeery long and slow cycle when it tries to compute something, or something.

I can open individual subassemblies and they work fine.

 

Basically I have tried to isolate the problem but failed to find anything that helps. I'm out of ideas. Could anyone help please? Thanks.

 

Inventor 2014 SP2 with all hotfixes. Windows 7 x64 fully updated, 16GB ram, all files (incl. design data, styles, libraries, etc.) are on a file server (no vault) but same slowness when everything is on a local ssd.

3 REPLIES 3
Message 2 of 4
Anonymous
in reply to: bshbsh

It's my understanding that only 1 core works for assemblies. Drawings will use all available cores to process data.

Message 3 of 4
johnsonshiue
in reply to: bshbsh

Hi! The behavior sounds like the system is using Swap memory (hard drive memory) to process the data. Did you check Task Manager -> Performance? How much RAM was used when the slowdown happened? 16GB RAM isn't enough to do 10K components modeling. Do you have heavy part (substituted subassembly containing one part with a lot of geometry)?

I personally do not believe it has anything to do with replacing parts workflow. It sounds more like the system running out of physical memory and it has to use disc memory to perform any further operation.

If possible, I would like to take a look at the files. Please share with us on a cloud drive of your choice (johnson.shiue@autodesk.com).

Regarding multi-core and multi-threading ability, Inventor is partially MC/MT enabled in certain operations. Below is the list of operations supporting MC/MT as of 2018. I am not sure if all of them are available on 2014. Regardless, I don't think the issue you are encountering is MC/MT related.

 

https://knowledge.autodesk.com/support/inventor-products/troubleshooting/caas/sfdcarticles/sfdcartic...

 

Many thanks!



Johnson Shiue (johnson.shiue@autodesk.com)
Software Test Engineer
Message 4 of 4
Anonymous
in reply to: johnsonshiue

I’ve added the files to A360 Drive and given you full access to the.

 

The main problem is when I update the derived part it will take several hours to update on my computer, while coworkers can do it in around 1 ½ hours.  We have identical computers. When updating the RAM it will run up around 26 Gig.  Sometimes but not always will crash my computer.l

 

ASUS Motherboard Sabertooth X79.  The bios is version 4801.  It has an Intel I7 processor, 32 gig RAM, two solid state drives.  Inventor 2017

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