[BUG] signal.SIGKILL is not available on Windows — Causes Crash During Model Load

[sthasmn]

❗ Problem

When using NeMo on Windows, the library crashes with the following error:

AttributeError: module 'signal' has no attribute 'SIGKILL'. Did you mean: 'SIGILL'?

📍 Location of Error

This occurs in:
nemo/utils/exp_manager.py:170

Line causing the problem:

rank_termination_signal: signal.Signals = signal.SIGKILL

signal.SIGKILL is not available on Windows, causing an AttributeError.

Workaround / Fix

Edit the file:

/Lib/site-packages/nemo/utils/exp_manager.py
Replace:

rank_termination_signal: signal.Signals = signal.SIGKILL

to

    if platform.system() == "Windows":
        rank_termination_signal: signal.Signals = signal.SIGTERM  # Use SIGTERM on Windows
    else:
        rank_termination_signal: signal.Signals = signal.SIGKILL

And add

import platform