ck to see if it is
still running before trying to recover from a checkpoint.
 </p>
 <p>
The checkpoint TLC produces after a short run does not take up
much space.&nbsp;

However, if TLC finds an error after running for a long time, the
checkpoint files could take up a lot of space--sometimes on the order
of a gigabyte for a model that has run for several days.&nbsp;

These files are deleted if the model is re-run and a new checkpoint is
produced, or if the model is validated when the
<em>Recover from checkp