---
title: "ETHER - A Parallel Problem Solving System"
authors:
  - "William A. Kornfeld"
doi: ""
url: "https://ijcai.org/proceedings/1979/108"
pdf: "https://ijcai.org/proceedings/1979/0108.pdf"
venue: "Proceedings of the Sixth International Joint Conference on Artificial Intelligence"
year: 1979
pages: ""
track: ""
keywords:
---

# ETHER - A Parallel Problem Solving System

William A. Kornfeld

*Proceedings of the Sixth International Joint Conference on Artificial Intelligence*.

## Abstract

EMit is a new pan~:rn directed invocation language for problem solving applications. EMil programs allow aribitrarily much processin& to happen in parallel. For example, when a goal generates several subgoals they are all pursued in parallel EMit Introduces the concepts of an «t;,;ty which is a generalization of process, and platform, a generalization of context. Two UteS for parallelism are discussed: parallel evaluation of subgoals and the use of opponents, concurrently runnlna activities tha attempt to ahow a sub&oal is unattainable. If the opponent succeeds then work on the subgoal halts.