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eb4345ed44
- additional startup guard for inter-node/local-node queries (UPstream) - impose linear communication tree for inter-node/local-node communicators. Was previously defaulted to a basic tree, but more consistent to have flat addressing for these types of connections. - demand-driven UPstream::interNode_offsets() for walking inter-node ranges instead of creating it manually in various places. - (style): List<int> instead of labelList for internal commsStruct since the communication structures are tied to MPI sizes and not to the OpenFOAM label sizes - reduce the number of intermediate buffer allocations within gatherList, scatterList.