Ansys Fluent v232 crash on starting

OmarZaki · February 10, 2024, 02:03

I am trying to start Fluent 2023 R2 Meshing with 36 cores. Processor is AMD Ryzen Threadripper PRO 7995WX.

I get the following error:

Code:

Welcome to ANSYS Fluent 2023 R2

Copyright 1987-2023 ANSYS, Inc. All Rights Reserved.

Unauthorized use, distribution or duplication is prohibited.

This product is subject to U.S. laws governing export and re-export.

For full Legal Notice, see documentation.

 

Build Time: Aug 18 2023 08:31:10 EDT Build Id: 10213

 

Connected License Server List: ######

 

--------------------------------------------------------------

This is an academic version of ANSYS FLUENT. Usage of this product

license is limited to the terms and conditions specified in your ANSYS

license form, additional terms section.

--------------------------------------------------------------

Host spawning Node 0 on machine "OmarZaki" (win64).

[mpiexec@OmarZaki] wmain (mpiexec.c:2165): assert (pg->intel.exitcodes != NULL) failed

[mpiexec@OmarZaki] HYD_sock_write (..\windows\src\hydra_sock.c:387): write error (errno = 34)

I also tried starting fluent with the following commands

Code:

-mpi=openmpi

Code:

-mpi=intel2018

But it is the same error.

I tried Ansys Fluent 2023 R1, and it is working normally. I also tried launching Ansys Fluent 2023 R2 with 1 core, and it is working normally too; The output is the following:

Code:

Welcome to ANSYS Fluent 2023 R2

              Copyright 1987-2023 ANSYS, Inc. All Rights Reserved.
              Unauthorized use, distribution or duplication is prohibited.
              This product is subject to U.S. laws governing export and re-export.
              For full Legal Notice, see documentation.

Build Time: May 29 2023 07:58:23 EDT  Build Id: 10212  
 
Connected License Server List:	######

     --------------------------------------------------------------
     This is an academic version of ANSYS FLUENT. Usage of this product
     license is limited to the terms and conditions specified in your ANSYS
     license form, additional terms section.
     --------------------------------------------------------------
Host spawning Node 0 on machine "OmarZaki" (win64).

-------------------------------------------------------------------------------
ID    Hostname       Core  O.S.         PID    Vendor          
-------------------------------------------------------------------------------
n0    OmarZaki  1/96  Windows-x64  44072  AMD Ryzen       
host  OmarZaki        Windows-x64  44500  AMD Ryzen       

MPI Option Selected: intel
-------------------------------------------------------------------------------

Cleanup script file is ####

What would be the issue?

LuckyTran · February 10, 2024, 18:20

Make sure you have the prereqs installed.

OmarZaki · February 12, 2024, 16:36

I made sure all prerequisites were installed. Also, I tried Ansys 2024 R1 and it gives me the same error.

northstrider · March 25, 2024, 21:26

I'm encountering the same issue right now. I have a dual CPU EPYC build and Fluent 2023R2 and 2024R1 crashes with the same issue.

The only version that is actually loading is 2023R1.

Please let me know if you find a solution. Thanks!

OmarZaki · March 28, 2024, 13:10

Quote:

Originally Posted by northstrider

I'm encountering the same issue right now. I have a dual CPU EPYC build and Fluent 2023R2 and 2024R1 crashes with the same issue.

The only version that is actually loading is 2023R1.

Please let me know if you find a solution. Thanks!

I have not found a solution yet. I am trying to communicate with Ansys Help Platform now to find a solution, but they are extremely slow in their replies.

northstrider · March 28, 2024, 13:13

Quote:

Originally Posted by OmarZaki

I have not found a solution yet. I am trying to communicate with Ansys Help Platform now to find a solution, but they are extremely slow in their replies.

I worked with my vendor support to try to figure this issue out and it really wasn't going anywhere. I ended up switching my workstation to RedHat Enterprise Linux and was able to fully install and run the latest Fluent. It's running now using all 192 available cores.

OmarZaki · March 28, 2024, 13:17

Quote:

Originally Posted by northstrider

I worked with my vendor support to try to figure this issue out and it really wasn't going anywhere. I ended up switching my workstation to RedHat Enterprise Linux and was able to fully install and run the latest Fluent. It's running now using all 192 available cores.

That's unfortunate. I guess I will have to do something similar.

OmarZaki · May 17, 2024, 14:25

After discussing the issue with Ansys Help Desk, here is what worked for me, using command line:

Code:

"C:\Program Files\ANSYS Inc\v241\fluent\ntbin\win64\fluent.exe" 3d -r24.1.0 -mpi=intel2018 -peth -t6

Snowfiend · July 31, 2024, 05:16

Quote:

Originally Posted by OmarZaki

After discussing the issue with Ansys Help Desk, here is what worked for me, using command line:

Code:

"C:\Program Files\ANSYS Inc\v241\fluent\ntbin\win64\fluent.exe" 3d -r24.1.0 -mpi=intel2018 -peth -t6

I am also having the same issue.

How can I apply the command to the fluent (fluid meshing) workbench analysis?

May 17, 2024, 14:25		#8
OmarZaki New Member Omar Zaki Join Date: Feb 2024 Posts: 5 Rep Power: 2	After discussing the issue with Ansys Help Desk, here is what worked for me, using command line: Code: "C:\Program Files\ANSYS Inc\v241\fluent\ntbin\win64\fluent.exe" 3d -r24.1.0 -mpi=intel2018 -peth -t6

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
bash script for pseudo-parallel usage of reconstructPar	kwardle	OpenFOAM Post-Processing	42	May 8, 2024 00:17
Ansys SIG$ILL error	loth	ANSYS	3	December 24, 2015 06:31
Running UDF with Supercomputer	roi247	FLUENT	4	October 15, 2015 14:41
Fluent crash on writing data file after thousand iterations	Chuck87	FLUENT	0	September 2, 2015 17:17
[GAMBIT] 3.5 years overtake by Ansys: Where are the enhancements in grid generation	Volker P.	ANSYS Meshing & Geometry	22	January 17, 2012 18:27

February 10, 2024, 18:20		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,754 Rep Power: 66	Make sure you have the prereqs installed.

February 12, 2024, 16:36		#3
OmarZaki New Member Omar Zaki Join Date: Feb 2024 Posts: 5 Rep Power: 2	I made sure all prerequisites were installed. Also, I tried Ansys 2024 R1 and it gives me the same error.

March 25, 2024, 21:26		#4
northstrider New Member Artem Join Date: Aug 2023 Location: USA Posts: 8 Rep Power: 3	I'm encountering the same issue right now. I have a dual CPU EPYC build and Fluent 2023R2 and 2024R1 crashes with the same issue. The only version that is actually loading is 2023R1. Please let me know if you find a solution. Thanks!