ANSYS Installation on CentOS 8.0
liwei
Member
I am trying to install ANSYS on a HPC cluster that has been configured with CentOS 8.0. I was not able to install ANSYS 2020 R2 and it seems the supported platforms are up to CentOS 7.7.
Is there a way that I can walk by this requirement and install ANSYS (in particular, FLUENT and Chemkin-Pro)on this cluster? Thank you very much.
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According to Platform Support https://www.ansys.com/solutions/solutions-by-role/it-professionals/platform-support we will probably support 8.1 with 2021R1. I think there's a fix on the OS side to replace some missing libraries, but it's not technically supported (ie we've not tested it): note, in my role I break computers, @mmadore and out IT team gets the fun job of fixing them.....
We currently do not have any documented fixes for CentOS 8.0. Customers may have found their way through library issues, but it is unsupported. Installation on CentOS 8.0 has been a known problem.
I see. Thank you.
I am trying to find the ANSYS Installation Guide. Can you share me the links/documents if there are any so I can review the library requirements? Thank you.
There's some information here https://www.ansys.com/solutions/solutions-by-role/it-professionals/platform-support otherwise I think the installation stuff is in with the download, or accessible from the same location.
Thanks for the help on a follow-up question. After the installation of ANSYS on the HPC cluster, how should I set up the license information?
For example, FLUENT executable is located in "/shared/ansys_inc/2020_R2/v202/fluent/bin". Our license server is
ANSYSLI_SERVERS: [email protected]
FLEXlm Servers: [email protected]
Can I set up the license by adding the following lines to "~/.bashrc"? Any comments and corrections are welcome. Thank you.
export [email protected]
export PATH=/shared/ansys_inc/2020_R2/v202/fluent/bin:$PATH
One more question on "QXcbConnection: XCB error", which popped up when I ran fluent on the cluster (BTW, I am using PuTTY+Xming). I did some research and it seems Qt_5_PRIVATE_API is missing. Here are some screenshots. Can you help me with this issue? Thanks.
@liwei Are you trying to run the FLUENT UI over this connection? Do you have Qt installed as that is a required 3rd party install that requires 777 permissions. You may need IT to help with obtaining this if you don't currently have it on the systems.
Thanks
Matt
@mmadore Qt is installed. Can you take a look at the attachment in the previous post? I showed all details. Also, can you help me with the license server connection? Thank you.
@liwei Can you send the current setting of your LD_LIBRARY_PATH? Perhaps you can try:
export LD_LIBRARY_PATH=/shared/ansys_inc/2020_R2/v202/tp/qt/5.9.6/linx64/lib/libQt5Quick.so.5:$LD_LIBRARY_PATH && fluent
For licensing, set [email protected] and [email protected]
Thank you,
Matt
Thank you, Matt. I did the changes, but FLUENT still doesn't work. Please see the attachment for details. Thanks.
For information. Thanks.
Can you try setting this to see if it helps?
setenv QT_XCB_NO_XI2 1
or
export QT_XCB_NO_XI2=1
Thanks,
Matt
Just tried, but it still did not work. Here is the (same) error message. Thanks.
Just to confirm, is this a viz node you're trying to run on?
I am not sure what is "a viz node".
I am trying to run FLUENT on a HPC cluster. This cluster has the OS of Centos 8.0 and additional libraries of Centos 7.0.
I am connecting to the cluster from my local Windows PC via PuTTY + Xming.
"viz node" is a machine with graphic display and designated graphics card, rather than only a command line system.
Please note, we do not support Xming for use with remote display. Please see this site for supported remote display environments.
https://www.ansys.com/-/media/ansys/corporate/files/pdf/solutions/it-professionals/platform-support/remote-display-and-virtual-desktop-support-2020-r2.pdf?la=en&hash=3DFEC2C3DA61AFD9F8657FE97447A20C16580C72
Thank you, Matt.
Is this a new requirement? Two years ago, I used to (from a Windows machine) remotely run FLUENT on a HPC with the graphic interface. I recall it only involved some X-window forwarding option. But at that time I was a user and didn't know about the HPC system settings. Now that I am trying to set the HPC and more/different requirements may be needed.
Can you give me some instruction on the software installation/preparation, both for the local Windows machines and the remote HPC cluster? I'd like to (from a Windows machine) remotely run FLUENT on the cluster with the graphic interface. Thanks.
@liwei It is not new, it was never officially supported though may have worked with older releases. Newer releases are more sensitive to graphics requirements, tested and supported to run on the setups from the shared link.
If you have access to the Customer Portal there are KMs posted available on using RSM to run a FLUENT solve from your Windows machine to solve on a remote Linux cluster.