Process management and resource sharing in the multiaccess system "ESOPE"

Abstract

78-Rocquencourt, Franc e . . .Mesnageons le temps ; encore nous en reste-il beaucoup d ' oisif et mal employe . " ESOPE , as quoted by MONTAIGNE Essais, livre troisieme, XIII .Summary : This paper describes the main design principles of the multiaccess system ESOPE . Emphasis i s placed on basic ideas underlying the design rather than on implementation details . The main feature s of the system include the ability given to any user to schedule his own parallel processes,using syste m primitive operations, and the allocation/scheduling policy, which dynamically takes into account recen t information about user behaviour .

A distributed file system

“…A hardware protection scheme exists so that one segment of the map is reserved f o r the LM and protected from the user. As in some other systems [4,5], f i l e s are accessed by f i r s t binding f i l e pages into the virtual address space. This binding information is generated and maintained by the LFS in a table called the Coupling Table. The table is sectioned into two parts --the Local Monitor Coupling Table (LMCT) and the Task Coupling Table (TCT).…”

Utilization of a small computer for real-time continuous patient monitoring

“…The design of MTX was directly influenced by the designs of several other executive programs (13)(14)(15)(16)(17).…”

Complete model for representing the coordination of asynchronous processes

“…In either case, however, to quote Miller [25 ] , "one is aiming at model- Various language structures have been proposed to implement desired interactions between processes. [3,6,10,11,12,14,16,18,29,32,34,36]. For our purpose, we can consider them to be models for representation of parallelism.…”