1. Shared node specification 1.1. Data group identifier, one input line NOTE: This functionality is currently under development! The shared node specification is used to define which nodes are shared with other participating programs running with a common solver. This data group may be given for AR-systems only and may only be given once. SHARed NODE SPECification Shared node specificationMain control data, one input line NO_SHAR NO_SHAR: inteeer >0: Number of shared supernodes Shared node specification, NO_SHAR input lines SNOD_ID DESC SNOD_ID: character(8): Supernode identifier DESC: character(256): Optional description. Not used in analysis.