Nodes of different colours represent the following:
Solid arrows point from a submodule to the (sub)module which it is
descended from. Dashed arrows point from a module or program unit to
modules which it uses.
Where possible, edges connecting nodes are
given different colours to make them easier to distinguish in
large graphs.
program testuse::forclustimplicit none type(cluster)::my_pccall my_pc%select()call my_pc%node(1)%select()call my_pc%node(1)%set_debug('on')call my_pc%deselect()end program test