topic Re: Creo: Feature Request: Multithreading in 3D Part & Assembly Design

Creo: Feature Request: Multithreading

Mat — Wed, 13 Jul 2022 11:48:30 GMT

Hi there,

while waiting for a complex part to regenerate, I 've got some time to write this text.

In January 2006 Intel introduced its "Core Duo". I think this was the first (consumer) processor with more than one core per socket. The multi-core race of the last years gave us cpus with core counts up to 64 cores (e.g. AMD Threadripper).

In the meantime (about 16 years) PTC decided to keep its flag ship CAD - Software single threaded.

My request for Creo is to get finally some benefit of multi-core cpus.

Until then, I watch Creo being stuck at about 6% CPU utilization on my 16 Core machine.

Re: Creo: Feature Request: Multithreading

TomU — Wed, 13 Jul 2022 12:11:39 GMT

There is an existing product idea for this. Please go vote for it.

https://community.ptc.com/t5/Creo-Parametric-Ideas/Support-multi-CPUs-processors-for-model-regeneration-action-in/idi-p/470919

Re: Creo: Feature Request: Multithreading

MartinHanak — Wed, 13 Jul 2022 13:31:33 GMT

Hi,

how do you imagine multithreading in a feature-based model where child features are dependent on their parents ?

Re: Creo: Feature Request: Multithreading

BenLoosli — Wed, 13 Jul 2022 13:38:53 GMT

There are some aspects of Creo that are multi-threaded: shaded image generation and NC toolpath generation come to mind.

With any hierarchical feature based modeller, how do you do multithreading when each feature is built on the prior feature? You cannot just regenerate feature 202 without regenerating features 1-201 first. (Well, PTC does use markers, so Creo can actually do that, but that is different.)

Re: Creo: Feature Request: Multithreading

StephenW — Wed, 13 Jul 2022 13:41:35 GMT

Creo isn't exclusively "single threaded". Over the years PTC has added support for multi-threading where it could do so.

Of course we all wish they would do more and do it quicker. My customers all want me to make my products lighter with increased functionality...sometimes I can accomodate, sometimes I can't.

https://www.ptc.com/en/support/article/CS115541

Re: Creo: Feature Request: Multithreading

Mat — Wed, 13 Jul 2022 13:43:28 GMT

thanks for the link (of course i placed a +1).

But the product idea is 10 years old. So I take this as a "no" from PTC.

Re: Creo: Feature Request: Multithreading

TomU — Wed, 13 Jul 2022 15:15:51 GMT

The official answer from PTC (so far) is on page two:

https://community.ptc.com/t5/Creo-Parametric-Ideas/Support-multi-CPUs-processors-for-model-regeneration-action-in/idc-p/673512/highlight/true#M13416

Re: Creo: Feature Request: Multithreading

VM_10202801 — Wed, 24 Apr 2024 09:44:41 GMT

Hello

I could imagine this, for example, for large assemblies by defining a regeneration tree (stored into the model). If we have not dependent branches, then we can assign to different threads these branches and this could improve regeneration time. I think this is not easy to implement but I guess not impossible.