Mechanism for receiving messages at a coupling facility
US5706432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/17
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Computer system processing complexes which can operate actually or apparently synchronously and in parallel or asynchronously in a network have a coupling facility for sending and receiving commands, responses, and data. The memory for the central processing complexes (which is accessible to each of the processing elements) is provided with storage for messages and data for coupling over a communication channel interface. Each of a plurality of processing elements (CPC) has data objects used to maintain state information for shared data in the coupling facility storage. The coupling facility can receive both message commands and data, sending data and responses to messages, and sending and receiving secondary messages. The processing element accessible memory provides a state information buffer control information operation memory block for describing the hardware communication environment associated with the computer system mechanism for storage of state information pertaining to a communications buffer residing in said coupling facility storage. The communication channel has a set of address registers. The system employs four new instructions, PREPARE CHANNEL BUFFER, SIGNAL CHANN…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.