digraph {
node [shape=box, style=rounded];
rankdir=TB;
subgraph clusterMain {
"SANS_PETSc" [label=<SANS_PETSc>  tooltip="SANS_PETSc" href="https://acdl.mit.edu/csi/job/SANS_PETSc/"];
"SANS_PETSc_poll" [label=<SANS_PETSc_poll>  tooltip="SANS_PETSc_poll" href="https://acdl.mit.edu/csi/job/SANS_PETSc_poll/"];
color=invis;}
subgraph clusterStandalone {
color=invis;}
"SANS_PETSc_poll" -> "SANS_PETSc" [ color=black  ] ;
}