Namespace sequant::eval::rec¶
One use-site of a value, kept alongside the folded ValueCell. Inline capacities of the per-node, per-occurrence and per-value records below (NodeRec, OccurrenceRec, ValueCell). There is one record per forest node, so the records are sized for the common case rather than boost::container::small_vector’s default of 8 elements: an Index is 232 bytes, so the default made an Index list 1.9 KB and a ValueCell, which inlined 8 occurrence records, 102 KB about 1.5 GB of mostly unused inline storage for the 2550-term UCC energy of h2o+. An Index list holds up to 3 inline (a CSV-CCSDT residual’s occupied indices); the operand, slot and loop lists 2; longer lists spill to the heap.