Attached Processor Directory Assistance
Original Publication Date: 1982-Jan-01
Included in the Prior Art Database: 2005-Feb-08
In an attached processor system that has individual Instruction Processor Units (IPUs) and storage controllers, but has a common main storage, is is necessary of search both directories to determine if either cache contains the requested data. If neither controller has it in its cache, it will be inpaged from main storage. A system of this type is shown schematically in Fig. 1.