Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
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implementation in a submodule of an interface in a parent module. Where possible, edges connecting nodes are given different colours to make them easier to distinguish in large graphs.
public subroutine HaloUnpack_2D_gpu(recvbuf, extboundary, halosides, n, nvar, nel, nhalo) bind(c,name="0")