_apps_checkpt_restart_run_with_restart:

This directory contains a script run_with_restart.py and examples illustrating how to use it. This script runs the code only if it appears that it has not been run before or the previous run did not complete properly.

Originally designed for use in a crontab job to automatically restart a run if the computer died during the previous run, but not yet extensively tested in that context.

Requires modifications to amrclaw checkpoint and restart routines introduced in Version 5.3.1 that allow alternating between two checkpoint files rather than creating a new file name for each checkpoint (intended for frequent checkpointing of large runs).

See docstring in run_with_restart.py for more details.

To test 2d version...

cd test_advection_2d_square
make .exe
python ../run_with_restart.py
Ctrl-C
python ../run_with_restart.py
[repeat this process as many times as desired until it finishes]

Then check the following:

• run_output.txt contains stdout output from each run and info about restarts
• _output/gauge*.txt should contain the gauge output for the full time

Note that the _output/gauge*.txt might contain some repeated times since the restart will append to the end, starting at the restart time. There might also be some missing times from gauge data buffered but not yet written to gauge*.txt when the run was aborted.

Similary in 3d.

• This version works with Clawpack 5.3.1
• This version works with Clawpack 5.4.1 and Python2 or Python3
• Updated for v5.7.0 on 19 April 2020