MapdlExitedError when using mapdl.plot()

[JUNGEONSKKU]

Hi, I'm new to pyMAPDL.
I want to do some parameter study automation for ML dataset generation.

First, here are my ANSYS product and pyMAPDL version.

  Product:             Ansys Mechanical Enterprise Academic Research
  MAPDL Version:       23.2
  ansys.mapdl Version: 0.69.dev0

I imported .anf file to pyMAPDL and I think it imported well when checking geometry. (using print(mapdl.geometry))

  MAPDL Selected Geometry
  Keypoints:  38
  Lines:      57
  Areas:      27
  Volumes:    4

But when I use mapdl.plot() (k-, l-, a-, v-, eplot whatever else), to visually check the geometry, MapdlExitedError occurs, and background MAPDL is just closed. (I know I didn't make any meshes yet so it is mostly saying for mapdl.lplot())

  MapdlExitedError: MAPDL server connection terminated with the following error
  <_InactiveRpcError of RPC that terminated with:
      status = StatusCode.UNAVAILABLE
      details = "failed to connect to all addresses; last error: UNAVAILABLE: ipv4:127.0.0.1:50052: Connection refused"
      debug_error_string = "UNKNOWN:Error received from peer  {created_time:"2024-04-09T10:51:52.2505233+00:00", grpc_status:14, grpc_message:"failed to connect to all addresses; last error: UNAVAILABLE: ipv4:127.0.0.1:50052: Connection refused"}"
  >

Is this a licensing issue or others? I'm confused because I think I successfully launched pyMAPDL and imported geometry so far with current license and versions.

Thank you in advance.

[JUNGEONSKKU]

Here is another aspect. I think that error occurs when importing .anf file. If I importing .iges file, the error does not show and I can visualize geometry. However, using .iges file does not keep assembly option...my four volume bodies are just disassembled.

I followed this example for importing .iges file.

https://mapdl.docs.pyansys.com/version/stable/examples/gallery_examples/00-mapdl-examples/geometry.html#sphx-glr-examples-gallery-examples-00-mapdl-examples-geometry-py

[mikerife]

Hi @JUNGEONSKKU Can you try the current 0.68 release and not the in-development release (0.69)? Also can you share the anf file?
Mike

[JUNGEONSKKU]

I didn't know recent ver 0.69 is in-development version. Thank you, and I'll try to use ver 0.68 first.
And here I attach my .anf file. It is a very simple package model. It was made from Autodesk Inventor (maybe exported as .iam or .stp), imported in SpaceClaim to adjust coordinate, and then exported as .anf file to use in PyMAPDL.

simplechip.zip

[JUNGEONSKKU]

I tried with ver. 0.68.0 and still there is MapdlExitedError but with no followings.

MapdlExitedError: MAPDL server connection terminated

Here I attach my code too.

Mymodel-Copy1.zip

[mikerife]

Hi @JUNGEONSKKU
Ok there are some weird characters in the OneDrive path where the file was written to. Here is the oddly named folder:

\¹ÙÅÁ È­¸é\

It is in both a /OUT and /TITLE commands in the ANF file. I took out those two lines plus the ending /OUT, saved, and then imported the ANF file and it worked. Here is the PyMAPDL script I used:

from ansys.mapdl.core import launch_mapdl
import os
path = os.getcwd()

mapdl = launch_mapdl(run_location=path, additional_switches='-smp')

mapdl.finish()
mapdl.clear()

read_anf = mapdl.input("simplechip.anf")

mapdl.aplot(color_areas=True)

Mike

[JUNGEONSKKU]

Hi @mikerife
Thank you for your kind help.

To begin with the conclusion, the issue has been resolved, and for that, I'm truly grateful. But I'm not sure if I followed the right direction you provided.

So I opened .anf file with Notepad(.txt) and I found /title and /out commands. They were written as OneDrive path. I didn't see any folders named \¹ÙÅÁ È­¸é, but I think that's because my PC's environment is set to Korean, and those strange characters might actually be Korean letters (I did notice a folder named in Korean).

I removed those two lines, leaving only /out, saved, and then imported the file. And it worked. Now I can visualize lines, areas and etc.
Is it okay to use this method in the future? I still have many steps to accomplish my final goal so I want to be sure from the fist step.

Thank you!

[germa89]

Great job! Thank you @mikerife !