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
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large graphs.
Source Code
function create_null_comm()result(comm)type(comm_t)::comm! Explicitly initialize to null/invalid statecomm%m_comm=MPI_COMM_NULLcomm%m_rank=-1_int32comm%m_size=-1_int32comm%is_valid=.false.end function create_null_comm