public pure function padded_cells(dims, sz) result(n)
Cell count of one padded field at dims (x, y padded to sz, z untouched).
i8 so callers can multiply by field count/nbytes without overflow, as
the allocator's own int32 ngrid does for very large grids.
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Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
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.