FlexSim unable to open

[MPeyman]

[ FlexSim 23.0.1 ]

Hello everyone,

I'm reaching out because I'm experiencing some issues with FlexSim. I'm unable to open any version of FlexSim as the theme appears briefly and then closes automatically. I'm not sure what's causing this sudden problem.

[Jeanette_Fullmer]

Hello @MPeyman,

Ben Wilson, Joerg Vogel, and Jason Lightfoot have all offered additional solutions for you since FlexSim has started to open for you again. Have you been able to test out these solutions?

[MPeyman]

Dear all, @Joerg Vogel @Ben Wilson @Kavika F @Jeanette F @Jacob W2 @Jason Lightfoot , After installing and updating some devices that were required by the "Driver Easy" application, I reinstalled FlexSim and changed the settings so that it doesn't use the GPU. As a result, I am now able to run the model. However, I'm concerned that running the model might cause harm to my CPU. Also, still have a question that why this things happened to my laptop since I used the same system which see the requirment of flexsim. Thanks.

[jason_lightfootVL7B4]

Can you run other OpenGL applications?

[MPeyman]

Except flexsim the only OpenGL application that I have is Adobe photoshop that I use in simple way.

[jason_lightfootVL7B4]

Try running a graphics benchmark tool (free) that includes openGL.

Modern CPUs will throttle the load when temperatures rise to the thermal limit in order not to damage themselves. That said, your PC should be designed to remove the heat running at 100% such that the CPU does not need to throttle. If you have throttling issues check that your air vents are clear and consider having it serviced (internal cleaning, refresh thermal paste).

[joerg_vogel_HsH]

@MPeyman , I am sorry, I don’t see that your system meets the minimum requirements of a FlexSim version 23. The Nvidia graphic card hasn’t got a Pascal or Turing GPU Core. Your CPU is not of a Coffee Lake type.

[MPeyman]

I would like to know if this system works well with FlexSim.

• Windows 11 Home
• Intel® Core™ i7 1255U (De 12.ª generación)
• 16 GB RAM
• 512 GB SSD
• 39.6 cm (15.6 "), FHD (1920 x 1080), 250 nits, 45% NTSC
• Gráficos Intel® Iris® Xᵉ

[jason_lightfootVL7B4]

Jörg - some of those requirements appear to be just recommendations - eg. the CPU/chipset is just for driver support. There's no mention of any CPU instruction sets on which FlexSim relies (eg. SSE4.1, AVX512) in a similar manner as the graphics stating OpenGL3.1 or higher. Maybe the requirements need rewording and/or adding specific performance criteria as they have in the Recommended section.

[joerg_vogel_HsH]

Jason , I am aware of the limits for such recommendations. I am using an UHD605 myself. But I don’t expect a perfect graphic performance then. I invest some time to get it run FlexSim. There are some suggested minimum hardware components or their equivalent in benchmark values to work sufficiently with FlexSim together. A System of 5 years old midrange components works acceptable well with FlexSim. Currently discussed components release dates were about 10 years ago.

[joerg_vogel_HsH]

@MPeyman , we bought a similar system as a desktop pc with a core-i7 1170 two years ago to replace PCs 9 years old. You will notice the graphic card benchmark values are similar to 10xx or slower 16xx Nvidia graphic cards. This said the performance is sufficient, but please don’t expect advanced features like VR or raytracing now or with newer FlexSim versions.
Parallel computing on multiple cores is limited by amount of RAM. I estimate you can run experiments with 2 cores and models of fewer flow items. Your bottleneck will be your memory. The windows system needs about 3 Gigabyte, then your graphic card uses some memory about 1 Gigabyte depending on output resolution. FlexSim will work with a bit more than 10 Gigabyte of available memory.

[Jeanette_Fullmer]

Hi @MPeyman, was Ben Wilson's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always unaccept and comment back to reopen your question.

[MPeyman]

Hi @Jeanette F, well, yes the answers were helpful but at the moment I stopped advancing the model until preparing a new system since in that way the system runs so slowly and sometimes gets stuck. Thank you I will be back soon.