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1. CCX PARDISO Low Multi-Core Usage

   

   by prop_design · September 2021

   i updated the tests with the changes you wanted. moreover, adding two more env vars. it helped speedup pastix. i attached updated results. in testing what exactly is needed to run each version, i foun

2. CCX PARDISO Low Multi-Core Usage

   

   by prop_design · September 2021

   yeah, memory is a big problem for mecway and ccx. ansys was a lot better in that regard. this model i have been testing was to push the memory limits. it's about the biggest i can solve without going

3. CCX PARDISO Low Multi-Core Usage

   

   by prop_design · September 2021

   i have to do more testing to know exactly what files are needed. there is a post above that shows what i used so far. the previous version worked via env variables to the files. the current version wo

4. CCX PARDISO Low Multi-Core Usage

   

   by Sergio · September 2021

   Nice results, will try this new 2.18 version. As you say, I have noticed in the past that CCX with Pardiso doesn't take a lot of CPU while is running, and that for more than 6-8 cores there is no sign

5. CCX PARDISO Low Multi-Core Usage

   

   by prop_design · September 2021

   the multi-core improvement for pardiso is impressive. the previous version only had a 14% improvement. the current version has a 31.6% improvement.

6. Compression only material

   

   by Victor · September 2021

   I'm not sure about having compression-only truss elements in the next version.

7. CCX PARDISO Low Multi-Core Usage

   

   by prop_design · September 2021

   in any event, this version is working better. i set two env variables for the intel sdl. those are:

8. CCX PARDISO Low Multi-Core Usage

   

   by 3rav · September 2021

   See this: https://calculix.discourse.group/t/calculix-and-pastix-solver-windows-version/130/18?u=rafal.brzegowy

9. CCX PARDISO Low Multi-Core Usage

   

   by MikeMcMullen · September 2021

   I am successfully running your 31 August version of ccx with pastix thanks to your instructions, but it gags on 1, 890,000 nodes in iteration 1. I believe this is due to nnz being about 6.9 GB. Read

10. CCX PARDISO Low Multi-Core Usage

    

    by MikeMcMullen · September 2021

    have not tried it. I just use the MKL compiled version I compiled with the most recent intel MKL and a PASTIX version dated Friday, ‎September ‎25, ‎2020, ‏‎1:18:38 AM. I downloaded a new pastix ver

11. CCX PARDISO Low Multi-Core Usage

    

    by prop_design · September 2021

    so the new version seems to run Pastix solver with scotch reordering. The previous version ran Pardiso solver with Metis reordering. I got a little bit better results with the previous version. Oddly

12. CCX PARDISO Low Multi-Core Usage

    

    by prop_design · September 2021

    The ccx 2.18 version exe has just been posted to the ccx website. I'll post updated runtime results, once I get them.

13. Compression only material

    

    by mathiasf · September 2021

    So could compression only elements be added in a future version of Mecway ?

14. CCX PARDISO Low Multi-Core Usage

    

    by MikeMcMullen · September 2021

    My system is nearly the same as Victors except my verision of Pardiso CCX may use a very slightly newer version of MKL.

15. CCX PARDISO Low Multi-Core Usage

    

    by prop_design · September 2021

    then perhaps it varies based on cpu type or mkl version. i have one of the latest intel cpus. so i can't imagine that's the issue.

16. CCX PARDISO Low Multi-Core Usage

    

    by prop_design · September 2021

    i guess ccx_pardiso_dynamic.exe was an old file that is no longer in the download. the readme file mentions that name. i don't know if ccx_pardiso.exe is the new version. either way, it's calling mkl_

17. CCX PARDISO Low Multi-Core Usage

    

    by prop_design · September 2021

    update; see latest version in a post below

18. ccx out of core?

    

    by prop_design · August 2021

    thanks for the info and updates. i don't think i want to get into compiling it myself though. i'm just using the pardiso version from the ccx website. it calls the intel mkl pardiso version. i can liv

19. ccx out of core?

    

    by MikeMcMullen · August 2021

    Last run mentioned was 3:11:33 run time. Trying a slightly larger version of the problem 4588000 nodes failed with a P-2 message at the start of solving the Matrix at 46:00, decreased to 4083375 node

20. ccx out of core?

    

    by MikeMcMullen · August 2021

    a swap file for Calculix (probably not in the version provided), and a large problem option in Mecway. I have not gotten beyond 1.25 million nodes and have not tried Mecway 14 for large problems sin