Initialize hangs in pyDEME after setup on WSL Ubuntu 22.04 (CUDA 12.8, Blackwell)

[sunho75]

Summary

pyDEME installs successfully and imports correctly, but execution stalls during Initialize().

Environment

• Host OS: Windows
• Linux: WSL2 Ubuntu 22.04
• GPU: NVIDIA RTX PRO 5000 Blackwell
• Driver (WSL-visible): NVIDIA-SMI reports CUDA Version 13.2
• CUDA toolkit used for run: 12.8 (/usr/local/cuda-12.8)
• Python: 3.11 (conda env)
• Package: DEME==2.3.3 (pip install)

What works

• pip install DEME succeeds
• import DEME succeeds
• DEMSolver() creation succeeds
• Scene/material setup succeeds

Minimal repro behavior

A minimal script with markers shows:

• P0_START
• P1_SOLVER
• P2_SETUP
• then no further progress inside Initialize()

Console output (last lines):