Stored-data layout¶

Direct export supports uncollated processorN, collated processorsN and grouped collated processorsN_a-b layouts. The complete decomposition and global cell permutation are validated independently at every selected physical time.

Time-local polyMesh/cellProcAddressing takes precedence over constant/polyMesh/cellProcAddressing. Rank-count changes, repartitioning and moving or topology-changing meshes therefore do not inherit stale addressing from an earlier time.

Cartesian coordinates are emitted only when a single-block blockMeshDict is verified against the global cell count and no selected time contains a local mesh. All other exports use stable global cell indices and record layout="cells".