Unable to start PyMAPDL grpc server on linux compute node via slurm

[MeenaBytes]

🤓 Before submitting the issue

• I have visited the Troubleshooting section.
• I have searched among the existing issues.
• I am using a Python virtual environment.
• I am using the latest version of PyMAPDL and its dependencies (fully updated virtual environment). You can update them using pip install --upgrade --upgrade-strategy eager ansys-mapdl-core in your activated virtual environment.

🔍 Description of the bug

I am trying to run it on Pune cluster before deploying at Customer HPC.

As a simple test:

1. I am using 'pymapdl start' via slurm job submission script. The stderr output starts with:

`The terminal error output (stderr) is:

Determine the Mellanox Infiniband OFED version numberOFED-internal-24.07-0.6.1:Determine if the user is running on Amazon Web Servers EFA interconnectBeta activation of the GRPC server.`

2. If I directly login on compute node and do 'pymapdl start' then the server launches without any issues.

I initially started with lauch_mapdl and was getting same error as well.

🕵️ Steps To Reproduce

pymapdl start

💻 Which Operating System are you using?

Linux

🐍 Which Python version are you using?

3.10

💾 Which MAPDL version are you using?

2025R2

📝 PyMAPDL Report

Show the Report!

PyMAPDL Software and Environment Report


Packages Requirements
*********************

Core packages
-------------
ansys.mapdl.core    : 0.71.1
numpy               : 2.2.6
platformdirs        : 4.5.0
scipy               : 1.15.3
grpc                : Package not found
ansys.api.mapdl.v0  : Package not found
ansys.mapdl.reader  : 0.55.1
google.protobuf     : Package not found
ansys-math-core     : 0.2.4
pexpect             : 4.9.0

Optional packages
-----------------
matplotlib          : 3.10.7
pyvista             : 0.46.3
pyiges              : 0.3.2
tqdm                : 4.67.1
ansys-tools-visualization_interface: Package not found
pandas              : Package not found


Ansys Installation
******************
Unable to locate any Ansys installations


Ansys Environment Variables
***************************
ANSYS_WB_PATH                  /apps/ansys_inc/v252
ANSYSLMD_LICENSE_FILE          1055@punlnxlicense3.ansys.com
AWP_ROOT252                    /apps/ansys_inc/v252

📝 Installed packages

Show the installed packages!

ansys-api-mapdl==0.5.2
ansys-api-platform-instancemanagement==1.1.3
ansys-mapdl-core==0.71.1
ansys-mapdl-reader==0.55.1
ansys-math-core==0.2.4
ansys-platform-instancemanagement==1.1.2
ansys-tools-common==0.2.1
ansys-tools-path==0.8.1
appdirs==1.4.4
certifi==2025.11.12
charset-normalizer==3.4.4
click==8.3.1
contourpy==1.3.2
cycler==0.12.1
fonttools==4.60.1
geomdl==5.4.0
grpcio==1.76.0
idna==3.11
importlib_metadata==8.7.0
kiwisolver==1.4.9
matplotlib==3.10.7
numpy==2.2.6
packaging==25.0
pexpect==4.9.0
pillow==12.0.0
platformdirs==4.5.0
pooch==1.8.2
protobuf==4.25.8
psutil==7.1.3
ptyprocess==0.7.0
pyansys-tools-versioning==0.7.0
pyiges==0.3.2
pyparsing==3.2.5
python-dateutil==2.9.0.post0
pyvista==0.46.3
requests==2.32.5
scipy==1.15.3
scooby==0.11.0
six==1.17.0
tabulate==0.9.0
tqdm==4.67.1
typing_extensions==4.15.0
urllib3==2.5.0
vtk==9.4.2
zipp==3.23.0

📝 Logger output file

Show the logger output file.

PANEL_GEN_13880254.txt