Troubleshooting simulations when they crash

In an ideal world, simulations would carry on until the end condition. In reality stellar evolution simulations do regularly crash due to convergence issues. Here are common reasons and ways to deal with them.

We deal with crashes by changes parameters in the "starname".input file. Use your favourite editor (e.g. vim, nano, gedit) to open the input file. If you continue the model from the same series, then save the file and restart the run using:

python /path/to/GENEC/tools/GENEC_launch.py -i "starname".input M015Z14S000

By default, the parameter iauto is set to 1. You can try to change it to iauto=2 instead. This automates extra parameter changes in the code as it is running. You could decide to use iauto=2 by default (Raphael does this ;) ).