Network shared variable processor

ABSTRACT

The Network Shared Variable (NSV) and Network Shared Variable Processor (NSVP) provide a user signed on to a local SHARP APL system with the ability to communicate with a remote SHARP APL system over a communications interface by sharing a variable with a task on that remote system. More specifically, NSVP extends the shared variable protocol to allow communications between tasks on different computer systems. Together, they represent dynamic innovations in APL technology that provide greater computing flexibility and power to the end user and the data centre. NSVP encourages users to maximize the potentials of distributed applications as it helps organizations optimize their data centre resources. NSVP also reinforces the image of APL at the forefront of system software technology. The NSV, while transparent to the user after coupling, enables users to access data from other systems using just one set of commands, while it minimizes the human and hardware resources required to maintain the data centre. In several ongoing tests of the NSV prototype, the product has proven its value to a variety of organizations around the world with substantially different needs.

REFERENCES

• 1: R.H. Lathwell, "System Formulation and APL Shared Variables", IBM Journal of Research and Development, Vol. 17, No. 4, July, 1974.
• 2: SHARP APL Auxiliary Processors Manual, 1-P. Sharp Associates, March 1987, I.P. Sharp Publication Code 0452 8703 E19.
• 3: I.P. Sharp Associates internal documentation.
• 4: Bisynch Users' Manual, Version 1.2, I.P. Sharp Associates, 1982, I.P. Sharp Publication Code 0332.
• 5: 'Language Standard for Programming Language-- APL", ISO/DP 8485, February 1986.

INDEX TERMS

Primary Classification:
  D. Software
  D.3 PROGRAMMING LANGUAGES
      D.3.2 Language Classifications

          Nouns: APL

Additional Classification:
  C. Computer Systems Organization
  C.1 PROCESSOR ARCHITECTURES
      C.1.2 Multiple Data Stream Architectures (Multiprocessors)
          Subjects: Parallel processors**
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.0 General
          Subjects: Data communications
      C.2.1 Network Architecture and Design
          Subjects: Network communications

  J. Computer Applications
  J.1 ADMINISTRATIVE DATA PROCESSING
      Subjects: Business

General Terms:
Design, Languages