Child processes (SCM_TMPDIR, TMPDIR)

The child processes will create a scratch directory. For efficiency reasons, that directory should reside on a local disk if possible. You need write access to that directory, and it should be big enough.

The child processes will create their scratch directories within $SCM_TMPDIR. This environment variable will be passed from the main program (master) to the child processes! Thus, you may set it in your run script.

If SCM_TMPDIR has not been set, the child processes will create their scratch directories in $TMPDIR. This environment variable will NOT be passed from the main (master) process to the child processes! Often it is set correctly by the batch system.