Learning Forum

[tim.dukes]

Hi Support , 

 

A customer is having big issues with Discovery not showing they are getting the black screen. 

 

The customer is using a p4000 graphics card that should be compatible, they are on the latest drivers and have tried multiple other drivers. 

 

The graphics card has all been selected in the Nvidia control panel. 

 

Anti aliasing is off

 

Anything else we can try?

[Charudatta Bandgar]

Hello Tim Dukes

There used to be an issue with some versions of the graphic card driver, for time being please try downgrading it to slightly older version. Are they facing this issue in 22R1 only or even in older Discovery version? Can you try and check if correct card is used? In the mean time, I will get more information whether it has been noticed before.

Regards.

[tim.dukes]

Hi Charudatta Bandgar

 

I have seen the issues with the 45x drivers this doesn't seem to be this issue as we have  tried 390, 460,470 and now the 512 versions.

 

The customer has 2 graphics cards he is able to use the weaker one M2000 in Discovery 2021R2 but wants to use the 2022R1 for the latest features. 

 

The m2000 just gives blue results in this version so he needs to use his P4000 which is more powerful. 

 

We have specified which card Discovery should use and gone through all the steps but still getting a black screen. 

 

We have tried older drivers and with one the Explore mode doesn't even appear which suggest incompatible driver. With another it appears but then there is an incompatible cuda version.

[Charudatta Bandgar]

Tim Dukes said:
he is able to use the weaker one M2000 in Discovery 2021R2 but wants to use the 2022R1 for the latest features. 

 Are they able to use 21R2 with the P4000? (I want to understand if the issue is with the card/driver.). Also, is this in a laptop (previously this was noticed to be a mobile card-driver combo)?

[Charudatta Bandgar]

Hello Tim Dukes Tim Dukes

I think one more thing we can do just to be sure, please try installing the latest redistributable. You can try installing the appropriate one from here: Latest supported Visual C++ Redistributable downloads | Microsoft Docs.

Please try installing the VC_redist.x64.exe and vc_redist.x86.exe for Visual Studio 2015, 2017, 2019 and 2022 package. If they already have 2015 installed, you may need to uninstall before installing this downloaded version.

You can also disable the intel graphics card.

Regards.

[tim.dukes]

Updating to the latest C++ seemed to break Discovery it won't work when we click solve it just goes to the red.  Now can't use the software at all.

Any idea why this would happen?

 

What is weird is that previously the P4000 graphics card works for the single structrual and fluids. 

 

However when the customer tries to do a CHT analysis in the explore mode the results just go all blue. 

 

Have you seen this before. It is almost like doing multiple physics 

[tim.dukes]

We have reverted back to c ++ 2012 and it now works. But still not getting results when doing a CHT analysis in the Discovery mode. 

 

The quadro p4000 is a supported card with 8GB of memory. Does the CHT analysis in the explore mode require more memory? We are just using the sample part.

[Charudatta Bandgar]

Hello Tim Dukes Tim Dukes

If I understand correctly. 

1. Previous to any suggestions Discovery was showing black screen (with P4000).

2. The suggestion made, to upgrade to latest c++ redistributables, solved the earlier issue (black screen), but you can no longer use the discovery, as the SID (simulation information display) turns red, whenever you hit solve. 

Tim Dukes said:
What is weird is that previously the P4000 graphics card works for the single structrual and fluids. 

 Here you are referring to Discovery 21R2, where it used to work fine. Or this is after you have updated the redistributables? The issue (mentioned in '2') is happening especially while using multi physics problems?

3. Reverting back to c++ 2012, Discovery is working fine (as in you are not seeing issues stated in '1' as well as '2'), but it is still giving you issues with multi physics problems, i.e. CHT analysis.

Tim Dukes said:
The quadro p4000 is a supported card with 8GB of memory. Does the CHT analysis in the explore mode require more memory? We are just using the sample part.

It might use more memory, but ideally this should not be an issue, would you be able to send me the log files? App logs are located in %temp%Discovery. It could also be an issue with bad installation, maybe as last option, we can reinstall Discovery (if you have not already).

 

I will convey your observations with the development team to get a better insights into what could the issue be, and the temp files would be handy as well.

 

Regards.

[tim.dukes]

🛈 This post originally contained file attachments which have been removed in compliance with the updated Ansys Learning Forum Terms & Conditions

Charudatta Bandgar

 

So to confirm we are now using 2022R1.

 

The P4000 is working but only for Structural , fluids . 

 

If we do a CHT analysis which is what he is looking for the results just stay blue. The status hexagon goes green so it almost looks like it is solving and solved but results never show. 

 

Please see attached log files. 

 

Look forward to hearing from you

[Charudatta Bandgar]

Tim Dukes Thanks for the update. I will convey this forward.

[tim.dukes]

Hi, customer has managed to contact Ansys Direct and apparently there are issues with customers using dual graphics cards.

 

The customer has a P2000 and a M4000. 

 

The solution is to completely disable the graphics card you don't want to use. This should be documented somewhere if this is a known issue.

[Devendra Badgujar]

Tim Dukes 

Thanks for your update on this. I hope the issue is resolved now. Let us know if you need any further assistance. 

Tim Dukes said:
This should be documented somewhere if this is a known issue.

Thank you for your suggestion on this.

 Regards