No module named P10_NN1NN1_vmvm2py when launching process in maddm

[Abdelrahman Abu Siam]

Hello,

When launching a process using maddm after importing a model, defining dark matter, generating relic density, adding indirect detection, etc...

I get the following error in many different models (up to the name of the module, but same structure).

Command "launch PROC_Y" interrupted with error:
ImportError : No module named P10_NN1NN1_vmvm2py
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in 'MG5_debug'.
Please attach this file to your report.

MG5_debug is attached.

The error occurs in both madgraph 3.3.1 and madgraph 2.9.19.

Thank you for your help

[Olivier Mattelaer (olivier-mattelaer)]

Why version of python are you using? Python3.12 is not supported for such kind of feature and will require at least numpy2.0 (which might not be released yet) to have such feature working back.

To know more about the crash you can go to the directory
/home/aias/MG5_aMC_v3_3_1/PROC_Y/Indirect_tree_cont/rw_me/SubProcesses/P10_NN1NN1_vmvm2py
and do
make matrix2py.so

This should crash but will give more insight on the issue (either python3.12 issue or something else).
If it works then the issue is likely that your f2py executable is not the one related to your version of pyhton.

Cheers,

Olivier

[Abdelrahman Abu Siam (abusiam77)]

Dear Olivier,

Im using python 2.7 to run maddm.

when i did what you suggested it did work and did not crash.

Could you please expand on f2py executable is not the one related to my version of python.

Thank you!

Abdelrahman