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Mat16-Pearl
16-Pearl
July 13, 2022
Question

Creo: Feature Request: Multithreading

  • July 13, 2022
  • 4 replies
  • 6012 views

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. 

    4 replies

    T
    23-Emerald IV
    TomU23-Emerald IV
    23-Emerald IV
    July 13, 2022

    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

    M
    Mat16-PearlAuthor
    16-Pearl
    July 13, 2022

    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.

     

    T
    23-Emerald IV
    TomU23-Emerald IV
    23-Emerald IV
    July 13, 2022

    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

     

      M
      MartinHanak24-Ruby III
      24-Ruby III
      July 13, 2022

      Hi,

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

        V
        VM_102028015-Regular Member
        5-Regular Member
        April 24, 2024

        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. 

         

        BR

         

        VM

          B
          23-Emerald III
          BenLoosli23-Emerald III
          23-Emerald III
          July 13, 2022

          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.)

          S
          23-Emerald III
          StephenW23-Emerald III
          23-Emerald III
          July 13, 2022

          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

           

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