Job A job_dagman_pre_subdag-A-node.cmd
Vars A nodename = "$(JOB)"

Job B job_dagman_pre_subdag-A-node.cmd
Vars B nodename = "$(JOB)"

Subdag external C job_dagman_pre_subdag-A-lower.dag
Script pre C job_dagman_pre_subdag-A-pre.pl

Job D job_dagman_pre_subdag-A-node.cmd
Vars D nodename = "$(JOB)"

PARENT A CHILD B C
PARENT B C CHILD D
