static bool mpi_send(const UPstream::commsTypes commsType, const void *buf, std::streamsize count, const UPstream::dataTypes dataTypeId, const int toProcNo, const int tag, const int communicator, UPstream::Request *req=nullptr, const UPstream::sendModes sendMode=UPstream::sendModes::normal)
Send buffer contents of specified data type to given processor.