MAPDL releasing license during testing.

[germa89]

As the title.

Requested here: #2533 (comment)

Working on this three issues arise:

• Usage of PAUSE over the gRPC interface: MAPDL releasing license during testing. #2595 (comment)
• Usage of PAUSE on Student version: MAPDL releasing license during testing. #2595 (comment)
• License error showing on the student version: MAPDL releasing license during testing. #2595 (comment)

[germa89]

Usage of PAUSE over the gRPC interface

Interestingly, it seems that the PAUSE command does not work on gRPC mode.

>> mapdl.run("pause")
CRITICAL - pymapdl_global -  logging - handle_exception - Uncaught exception
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/mapdl/pymapdl/src/ansys/mapdl/core/mapdl_core.py", line 2236, in run
    self._raise_errors(text)
  File "/home/mapdl/pymapdl/src/ansys/mapdl/core/mapdl_core.py", line 2682, in _raise_errors
    raise MapdlInvalidRoutineError(text)
ansys.mapdl.core.errors.MapdlInvalidRoutineError: *** WARNING ***                         CP =       2.088   TIME= 15:47:33
 PAUSE is not a recognized BEGIN command, abbreviation, or macro.  This  
 command will be ignored.

Ignore these messages by setting 'ignore_errors'=True

However, it does work in a normal context:

I believe I'm using it wrong.... Pinging @mikerife @FredAns @koubaa

[germa89]

Usage of PAUSE on Student version

Additionally, it seems the command PAUSE does not work well in MAPDL student version (or maybe I'm using it wrong).

But if you start an MAPDL instance, and then issue PAUSE:

$ ansys -dir /tmp
...
...
 RUN SETUP PROCEDURE FROM FILE= /ansys_inc/v241/ansys/apdl/start.ans

 /INPUT FILE= /ansys_inc/v241/ansys/apdl/start.ans  LINE=       0

 BEGIN:
pause

 *** WARNING ***                         CP =       0.518   TIME= 16:14:02
 This application is now PAUSED, making its license available for use by 
 another application in this Workbench session.  All commands to this    
 application will be ignored until an UNPAUSE command is typed in the    
 Command Window of this application and successfully processed.          

 BEGIN:

and then start another MAPDL instance, you get a Maximum licensed number of demo users already reached error but it starts.

(.venv) root@67ca9354d958:~/pymapdl# ansys -dir /tmp/tmp

 ANSYS LICENSE MANAGER ERROR:
 Maximum licensed number of demo users already reached.


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       mech_2
 License path:  /var/tmp//616ceecb-5105-43ba-a26d-dd269757afed:
 FlexNet Licensing error:-5,357


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       mech_1
 License path:  /var/tmp//616ceecb-5105-43ba-a26d-dd269757afed:
 FlexNet Licensing error:-5,357


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       meba
 License path:  /var/tmp//616ceecb-5105-43ba-a26d-dd269757afed:
 FlexNet Licensing error:-5,357

[germa89]

License error showing on the student version

Also it seems that launching student version shows the Maximum licensed number of demo users already reached. error before starting successfully:

 ANSYS LICENSE MANAGER ERROR:
 Maximum licensed number of demo users already reached.


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       mech_2
 License path:  /var/tmp//56ebd4ed-9192-4bdb-beb2-34b929b03b83:
 FlexNet Licensing error:-5,357

I have made sure there are no more Ansys processes running using ps aux | grep ansys.

Details

Details

$ (.venv) root@67ca9354d958:~/pymapdl# ansys -dir /tmp/tmp

 ANSYS LICENSE MANAGER ERROR:
 Maximum licensed number of demo users already reached.


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       mech_2
 License path:  /var/tmp//56ebd4ed-9192-4bdb-beb2-34b929b03b83:
 FlexNet Licensing error:-5,357


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       mech_1
 License path:  /var/tmp//56ebd4ed-9192-4bdb-beb2-34b929b03b83:
 FlexNet Licensing error:-5,357


 ANSYS LICENSE MANAGER ERROR:
 No such feature exists.
 Feature:       meba
 License path:  /var/tmp//56ebd4ed-9192-4bdb-beb2-34b929b03b83:
 FlexNet Licensing error:-5,357


 Ansys Mechanical Enterprise Academic Student      


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 *** WARNING ***                         CP =       0.405   TIME= 16:21:22
 MISSING DOCUMENTATION FILE                                              
  DOCU LIST FILE = /ansys_inc/v241/ansys/gui/en-us/                      
  MISSING FILE NAME = /__w/mapdl-docker-image-builder/.                  


          *****  MAPDL COMMAND LINE ARGUMENTS  *****
  INITIAL DIRECTORY = /tmp/tmp

 RELEASE=                      BUILD= 24.1      UP20231106   VERSION=LINUX x64   
 CURRENT JOBNAME=file0  16:21:22  JAN 03, 2024 CP=      0.409


 RUN SETUP PROCEDURE FROM FILE= /ansys_inc/v241/ansys/apdl/start.ans

 /INPUT FILE= /ansys_inc/v241/ansys/apdl/start.ans  LINE=       0

 BEGIN:

[mikerife]

@germa89 you are not using pause wrong; at least that is what I think. It is pretty strongly implied in the help that it is for mapdl interactive. You can enter other APDL commands while paused but the UI throws an warning for all (except the unpause). My guess is that this is built into the UI and not MAPDL per se....if that makes sense.

[germa89]

Wrapping PAUSE on a non_interactive context (which uses input) does not help to avoid the error message shown above.

 *** WARNING ***                         CP =       3.962   TIME= 11:51:49
 PAUSE is not a recognized PREP7 command, abbreviation, or macro.        
                                            


Ignore these messages by setting 'ignore_errors'=True.

[germa89]

@FredAns any comments on the usage of PAUSE? it seems not to work using gRPC. @mikerife suggested it is more an UI thing which then makes me think there must be a way to tell MAPDL to release the license.