The syntax of ORCHESTRA concert files The ORCHESTRA concert (xml) file contains the complete structure of ORCHESTRA calculations in terms of nodes/cells, calculators and input and output. The example below gives an impression what this looks like. It contains a single cell/node for which the contents are read from input.dat. Equilibration happens with the chemical system defined in chemistry.inp, and results are written to output.dat. The calculations are ready when all the data lines from input.dat are processed. input.dat (0) chemistry (0) output.dat (0) The task types of the expander case "NodeGroup": case "LinkGroup": case "InstreamGroup": case "OutstreamGroup": case "Viewer_1d": case "Viewer_2d": case "TaskGroup": case "ParallelTaskGroup": case "RepeatingTaskGroup": case "VariableTimestepGroup": case "WaitTask": case "CloseTask": case "WaitForSocketTask": case "FileTask":