Learning Forum

[bert_itw]

Hi,

I'am setting up a WVD environment with Windows 10 21h1 with a NVIDIA Tesla M60 as videocard, Fluent 2021 R2 is installed.

After starting Fluent 2021 R2 the Fluent Launcher starts, after choosing Start i see 5 seconds a splash screen of Ansys 2021 and then the application crashes. Can't find any application logfiles in %TEMP% or C:windows emp or other folder. There is also nothing in de Event Viewer logs.

Where to find the logfiles? Can this application work on a Windows Virtual Desktop?

THNX!

[Rob]

Check the working folder for a trn file, that may show something but tends to need the solver to start to give anything. Can you post a screen shot of the Fluent launcher panel?

[bert_itw]

[bert_itw]

Thanks for your reply Rob.
There is nothing in the Working directory. Created for test a other folder but the folder remains empty.
Working folder is the same as the Working directory?

[Rob]

Correct, can you confirm the userID is all letters/numbers with no "odd" characters? What are the parallel settings?

[bert_itw]

The UserID is in this case only with a underscore like: 'ADM_name". But in other cases there is no underscore in the UserID. Also tested with "C:\temp\ansys" as working dir (full permissions).

[bert_itw]

There are 2 IP Interfaces to select; 127.0.01 (localhost) and host IP. Also tested with the other parallel settings.

[bert_itw]

do you have a solution for this?

[Rob]

No, it'll need or 's input - I drive the software, they understand how to make it work.

[George Karnos]

Please check the following:
Fluent Runs With VPN Or Unstable Network On Windows
Contents
1. Using MS-MPI and loopback interface 2
With Launcher 2
With command line 2
2. Run without Intel MPI for t1 runs 2
With Launcher 3
With command line 3
3. With Installation of Microsoft loopback adapter 3
To install the Microsoft loopback adapter on win 10 you must 3
Run Fluent with normal default settings 4

1. Using MS-MPI and loopback interface
With Launcher


With command line
fluent 3d -t2 -mpi=ms -host_ip=your-machine-name:127.0.0.1

2. Run without Intel MPI for t1 runs
An option is made available to run Fluent directly without invoking Intel MPI for shared memory t1 runs. This can be specified either as:
With Launcher


With command line
fluent 3d ÔÇôt1 -run_without_mpi

3. With Installation of Microsoft loopback adapter
To install the Microsoft loopback adapter on win 10 you must
1.right click on window start menu icon and select Device manager. Device manager window will immediately open (or you may use any other way how to open device manager window)
2.click on Action, and select Add legacy hardware
3.click Next on welcome screen
4.choose "Install the hardware that i manually select from a list" and click on Next
5.scroll down and select Network adapters from offered common hardware types and click on Next
6.select Microsoft as the manufacturer, and then select Microsoft KM-TEST Loopback adapter card model, click on Next
7.click on Next
8.click on Finish
Run Fluent with normal default settings

[bert_itw]

thanks for your reply!
Tried al the 3 options but it still crashes at startup.
After installing the Microsoft lookback adapter, the adapter get's no IP because there is no DHCP server. So its getting 169.x.x.x, is that a problem?
In our environment its also not possible to automate the installation of the Microsoft loopback adapter.

[George Karnos]

Next i would check the Graphics card and driver.
What graphics card do you have and make sure that the driver is up to date.

[bert_itw]

its a NVIDIA Tesla M60 with 30.0.14.7168. Is it possible that Fluent can not work a Mulit-User Windows? (Windows Virtual Desktop)

[BenMartinBaur]

can you confirm Ansys is running on Windows 10 Multi-Session?

[George Karnos]

See the following for Supported Virtual Desktops and Remote Display support:
https://www.ansys.com/content/dam/it-solutions/platform-support/remote-display-and-virtual-desktop-support-2022-r1.pdf

[Miguel Neves]

Hi,
Im a recent ansys user. I ve been using it for a course im taking in mechancial engineering maste´s degree.
Ansys has been working really well (i've used it with steady-thermal and static strutural) but now i was going to get into fluent but im getting the error "Fluent failed to start". I´ve tried opening through the workbench and standalone, but neither works. Can some of you help me?