376625
Mobile Agents for Pervasive Computing Using a Novel Method of Message Passing
Pervasive computing is an emerging technology that brings new dimensions to distributed computing; it uses a wide variety of smart, ubiquitous devices throughout an individual’s working and living environment. Mobile agents are software entities that can migrate between servers or mobile agent environments of the network accomplishing various tasks on the behalf of their owners. The objective of this paper is to describe a test and prototyping environment for experimenting with mobile agents in pervasive environments. A prototype environment for a novel proactive infrastructure is described for mobile agent assisted pervasive computing. In addition, a new message passing algorithm is provided for mobile agent connection establishment and management (CEMA).
10614369
PICO: A Middleware Framework for Pervasive Computing
The pervasive information community organization is a framework for creating mission-oriented dynamic communities of autonomous software entities that perform tasks for users and devices. PICO's telemedicine example scenario demonstrates its potential as a simple, unique, and versatile middleware framework for pervasive computing.
29185449
Performance Analysis and Scalability of the ThreadmanTM Thread Manager
6748545
Quality of Service Primitives for Operating System Support of Multimedia Applications
6061688
Mobile Agent Connection Establishment and Management (CEMA)—Message Exchange for Pervasive Computing Environments
Pervasive computing is an emerging technology that offers new possibilities to distributed computing and computer networking; it employs a wide variety of smart, ubiquitous devices throughout an individual's working and living environment. Mobile agents are software entities that can migrate between servers (mobile agent environments) of the network accomplishing various tasks on the behalf of their owners. The objective of this paper is to describe a test and prototyping environment for experimenting with mobile agents in pervasive environments. A prototype environment for a novel, proactive infrastructure is described for mobile agent assisted pervasive computing. In addition, a new message passing algorithm is provided for mobile agent connection establishment and management (CEMA). Simulation results show the performance of the proposed approach.
30423936
A scalable and self-adapting notification framework for healthcare information systems
There has been a great interest in publish/subscribe systems in recent years. This interest, coupled with the pervasiveness of lightweight electronic devices, such as cellular phones and PDAs, have opened a new arena in publish/subscribe networks. Currently, many broker overlay networks are static and never change in structure. Often, a network overlay structure is predefined or manually manipulated. We present a dynamic broker network in the context of disseminating critical labs and patient information in a Healthcare Information System (HIS). Our work builds upon previous network optimization research on ad-hoc publish/subscribe networks. Our framework utilizes user-defined heuristic cost functions to satisfy QoS constraints. We also address certain reliability issues by providing a scheduling algorithm to selectively retransmit information.
62674005
Itinerant Agents for Mobile Computing
16053840
Parallel computation of three-dimensional nonlinear magnetostatic problems
We describe a general-purpose parallel electromagnetic code for computing accurate solutions to large computationally demanding, 3D, nonlinear magnetostatic problems. The code, CORAL, is based on a volume integral equation formulation. Using an IBM SP parallel computer and iterative solution methods, we successfully solved the dense linear systems inherent in such formulations. A key component of our work was the use of the PETSc library, which provides parallel portability and access to the latest linear algebra solution technology.
20665084
Parallel performance of two applications in the Boeing high performance computing benchmark suite
Abstract We describe our work to evaluate the performance of the parallel versions of two floating-point-intensive engineering applications from Boeing's high performance computing benchmark suite (BHPCBS) on emerging RISC parallel systems and PC clusters. The first application is a computational fluid dynamics (CFD) code, OVERFLOW, developed by NASA and used by Boeing for analysis and design of advanced aircraft. The second application is a prototype of a computational electromagnetics (CEM) code, developed by Boeing and used for radar cross-section studies. The distributed memory parallel versions of both applications use the message passing interface (MPI) standard for message passing. The goal of our work was to determine whether RISC parallel systems and PC clusters, which offer high performance at low cost, may be able to meet Boeing's computing requirements in the future. We describe the test environments for the studies, discuss parallelization issues and strategies and present performance data for the two applications.
40980541
Object-oriented programming (abstract): how to “scale up” CS 1
This past June, the National Science Foundation sponsored a workshop devoted to exploring the topic of how to integrate object-oriented programming g (OOP) concepts into the undergraduate curriculum Participants were chosen based, in pm on papers and lab materials that were submitted demonstrating practical experience with teaching 00P to undergraduates. One of the many surprises (to the conveners) to come out of the workshop was the large number of attendees who advocated teaching 00P (in a variety of languages) in the fiist programming course for majors (CS 1), and who had developed interesting approaches for doing so.
45116720
Fortran language extensions
Current Fortran 90 implementations support a large number of extensions to the Standard language, most of which originated prior to F90. A great many user programs require at least some extensions. The "Implementations" Subgroup of X3J3 discussed the possibility of informally assembling some documentation of these extensions.