1. A partitionable parallel processor control network for a plurality of parallel processors wherein each processor therein emits a ready signal when it is ready to execute a parallel processing task and initiates said parallel processing task upon receipt of an initiate signal, said partitionable parallel processor control network comprising: a single root control node means having a plurality of processor side data lines for receiving on each a ready signal and sending back on each an initiate signal when each processor side data line in said plurality thereof is receiving a ready signal; a control node tree having a plurality of bi-mode control node means, each bi-mode control node means therein having a plurality of processor side data lines, a single root control node means side data line, and a control input for designating a non-root operating mode wherein a ready signal is outputted on said signal root control node means side data line when a ready signal is being received on each processor side data line in said plurality thereof, and for designating a root operating mode wherein an initiate signal is outputted back on each processor side data line in said plurality thereof when a ready signal is being received on each processor side data line in said plurality thereof, said control node tree being configured with a first level and a lesser level of pluralities of bi-mode control node means, each said first level bi-mode control node means therein having each processor side data line in its said plurality thereof connected to an individual processor in said plurality thereof for receiving therefrom a ready signal and for sending thereto an initiate signals, said first level plurality and lesser level pluralities of bi-mode control node means being coupled in a tree-like fashion to a last level bi-mode control node means therein having each said root side data line thereof connected to an individually associated processor side data line of said single root control node means; and designating means connected to said control input of each bi-mode control node means for designating an operating mode means of each bi-mode control node in said plurality thereof.