UScholar Works
 
Filters: Date: "1990" Department: "Computing, School of" Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
1 George, LalA scheduling strategy for shared memory multiprocessorsAn efficient scheduling strategy for shared memory multiprocessors is described. The rapid dissemination of tasks to available procesors and ready queues is crucial to the performance of any parallel system. Such overheads determine the attainable speedup and performance of the system. Poor techniq...Shared memory multiprocessors1990
2 Bruderlin, BeatAn axiomatic approach for solving geometric problems symbolicallyThis paper describes a new approach for solving geometric constraint problems and problems in geometry theorem proving. We developed a rewrite-rule mechanism operating on geometric predicates. Termination and completeness of the problem solving algorithm can be obtained through well foundedness and ...Geometric constraint problems; Geometry theorem proving; Knuth-Bendix completion algorithm1990
3 Starkey, MikeC-RISC A C language reduced instruction set computerThis project is the implementation of a Reduced Instruction Set Computer (RISC) on a tiny chip. RISC technology is based on the idea that a small number of simple instructions can be used to create a fast, flexible computer. Our RISC uses this principle while staying within the confines of the tiny ...RISC; C language1990
4 Henderson, Thomas C.CBCV: A CAD-based vision systemThe CBCV system has been developed in order to provide the capability of automatically synthesizing executable vision modules for various functions like object recognition, pose determinaion, quality inspection, etc. A wide range of tools exist for both 2D and 3D vision, including not only software...CBCV1990
5 Kessler, Robert R.Concurrent SchemeThis paper describes an evolution of the Scheme language to support parallelism with tight coupling of control and data. Mechanisms are presented to address the difficult and related problems of mutual exclusion and data sharing which arise in concurrent language systems. The mechanisms are tailored...Concurrent Scheme; Parallelism1990
6 Gopalakrishnan, GaneshDesign and verification of the rollback chip using HOP: a case study of formal methods applied to hardware designThe use of formal methods in hardware design improves the quality of designs in many ways: it promotes better understanding of the design; it permits systematic design refinement through the discovery of invariants; and it allows design verification (informal or formal). In this paper we illustrate ...Rollback chip; Verification; HOP; Hardware design; RBC1990
7 Bruderlin, BeatDetecting ambiguities: an optimistic approach to robustness problems in computational geometryComputational geometry algorithms deal with geometric objects, usually represented by coordinates in an n-dimensional Euclidean space. Most efficient algorithms implement geometric operations as floating point arithmetic operations on the coordinates. Since floating point numbers can only approxima...Ambiguities; Computational geometry; Robustness problems1990
8 Bruderlin, BeatDI - An object-oriented user interface toolbox for modula-2 applicationsThe DI dialog interface tool library for Modula-2 applications described in this paper facilitates the design and implementation of graphical, object-oriented user interfaces for workstations with a graphical screen, a mouse and a keyboard. Much emphasis is put on the portability of the application...DI dialog interface tool1990
9 Evans, JohnDPOS programming manualThis manual describes the basic concepts of the DPOS Metalanguage and the programming language DPOS Scheme.DPOS; Programming manual1990
10 Kessler, Robert R.DPOS: A metalanguage and programming environment for parallel processorsThe complexity and diversity of parallel programming languages and computer architectures hinders programmers in developing programs and greatly limits program portability. All MIMD parallel programming systems, however, address common requirements for process creation, process management, and inte...DPOS; MIMD parallel programming1990
11 Akella, VenkateshhopCP: language definition, semantics and examplesWe describe a formalism for high level modeling of hardware based on flow graphs and nonatomic actions called hopCP. A module is the description of a hardware system in hopCP, which contains a flow graph to model the behavioral aspects and ports which represent the communication links. Operations ar...hopCP1990
12 Bruderlin, BeatInteraction with constraints in 3D modelingInteractive geometric modeling is an important part of the industrial product design process. This paper describes how constraints can be used to facilitate the interactive definition of geometric objects and assemblies. We have implemented a geometric modeling system that combines the definition o...Interactive geometric modeling; Industrial product design; Geometric constraints1990
13 Michell, NickOn the potential of asynchronous pipelined processorsAn asynchronous version of the pipelined R3000 and DLX processors, the A3000, is being designed. Simulation was employed t o investigate the potential speed-up obtainable due t o the asynchronous operation. Preliminary results show up to a 64% improvement in performance.Pipelined processors; Pipelined R3000; DLX processors; A30001990
14 Bruderlin, BeatRobust regularized set operations on polyhedraThis paper describes a provably correct and robust implementation of regularized set operations on polyhedral objects. Although the algorithm described here does not assume manifold polyhedra and handles all possible degenerate cases, it turns out to be quite simple. The geometric operations and rel...Robust regularized set operations1990
15 Elens, Robert N.Sequencing computational events in heterogeneous distributed systemsDistributed systems are growing in number, size, and complexity. Some technological advances have been made to program these systems, most notably the remote procedure call. However, the nature of heterogeneous distributed systems allows for much more complex interactions and new programming techno...Sequencing; Computational events; Heterogeneous distributed systems1990
16 Gopalakrishnan, GaneshSome recent asynchronous system design methodologiesWe present an in-depth study of some techniques for asynchronous system design, analysis, and verification. After defining basic terminology, we take one simple example - a four-phase t o two-phase converter - and present its design using (a) classical flow-tables; (b) Signal Transition Graphs of [...Asynchronous system design1990
17 Henderson, Thomas C.Zo: A framework for autonomous agent behavior specification and analysisWe describe a framework for the specification and analysis of autonomous agents1 . In general, such agents require several levels of behavioral specifications, including: low-level reflex actions, mid-level controllers to deal with the physical aspects of the world, and highlevel representations for...Z-Infinity; Autonomous agents; Behavior1990
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