JOB  A job_dagman_splice-O-subdir1.cmd
VARS A job="$(JOB)"

JOB  B job_dagman_splice-O-subdir1.cmd
VARS B job="$(JOB)"

SPLICE A_S1 splice.dag DIR a
SPLICE A_S2 splice.dag DIR a
SPLICE B_S1 splice.dag DIR b
SPLICE B_S2 splice.dag DIR b

# The nodes of splice
PARENT A CHILD A_S1 A_S2
PARENT A_S1 A_S2 CHILD B_S1 B_S2
PARENT B_S1 B_S2 CHILD B