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- JWAVE Architectures
How JWAVE can provide solutions in a wide variety of application
architectures
- Using JWAVE
3.5 in Server Side Java Applications
The move from Applets to server-side J2EE applications JWAVE is
designed and presented as a solution for client/server and custom
web-architected solutions. It has broad functionality and an open
design that allows it to fit into many architectures and applications.
Through the use of a Java servlet, the JWaveJSPServlet, it can
also fit into server-side J2EE applications where no client-side
Java is used. It can be used for either custom stand-alone solutions,
or solutions involving integration with other tools including
Application Servers, and N-tier architectures.
- Calling the
IMSL C Numerical Library from Java
This report describes how to use the Java Native Interface (JNI)
to call an IMSL C Numerical Library (CNL) function from Java.
Using JNI, Java calls C interface code, which then calls the CNL
function.
- JWAVE and
CORBA
JWAVE is a distributed data analysis and visualization solution,
using PV-WAVE as a server engine to provide the horsepower for
analysis and visualization tasks. As JWAVE is a multi-platform,
networked, distributed solution, it is natural to ask the question,
"Can JWAVE plug into CORBA?"
- The Problem
with Portals: Envisioning the Best Technologies for the Enterprise
Information Portal
The Enterprise Information Portal (EIP) is a simple concept and
an effective solution to an age-old problem. Properly implemented,
it can transform knowledge workers' PCs into a single doorway
to enterprise information wherever it may happen to reside. The
potential benefits of EIPs are straightforward enough. The problem
with portals, however, is that just providing knowledge workers
with a doorway to enterprise information is not the same as providing
them with the insights they need to identify and seize business
opportunities or to spot and address potential problems or threats.
It's not just information that knowledge workers need; it's timely
insights that spur action.
- VDA Tools
Technology Unleashed
For many PV-WAVE programmers, their exposure to VDA tools consists
of running the Navigator and using it as an interactive point-and-click
method of accessing PV-WAVE functionality. Few users actually
program using VDA tools or the underlying technology. The reason
for this is certainly the great complexity of the VDA tools Visual
Numerics provides and the great number of underlying routines
they make. The goal of this document is to try and uncover some
of this complexity and show how both the current VDA tools and
the underlying pieces of the VDA tool technology can be easily
applied in new applications and retrofit to existing applications.
- Sensor Response
Modeling for Trackers
The primary objective of a sensor response model is to provide
object sighting messages (OSMs) in the form of accurate position
and amplitude estimates to the tracker. This paper will examine
the capabilities of a sensor response model entitled "Passive
Sensor Workbench" to evaluate object sighting measurement accuracy
by implementing a selected candidate sensor design and signal/image
processing technique.
- Integrating
Simulation Research Into Curriculum Modules
Visual Numerics describes the development of modules for teaching
a senior-level course, Mechanical Behavior of Materials, that
incorporate the results of state-of-the-art simulation techniques.
The modules are Java Web-based. These modules teach the basics
of materials mechanical behavior using research simulation codes
that are state-of-the-art in the materials simulation community.
- Enterprise
Computing for Numerics and Visualization
The way that people use computers is in a state of turmoil. Desktop-based
computing is moving to a world in which the enterprise becomes
more important than any one individual machine: the enterprise
computing model. In this white paper, Visual Numerics shares its
vision of how worldwide web technology and distributed computing
are converging to make enterprise computing technical computing
a reality. As a computing professional, the technology roadmap
for enterprise computing numerics and visualization that Visual
Numerics outlines in this white paper is vital for your own technical
computing and application strategy.
- JWAVE™
in the CAVE™ at Virginia Tech
In partnership with the National Computational Science Alliance
(NCSA), Virginia Tech's Visualization Laboratory has taken the
next giant step in scientific visual data analysis of volumetric,
three-dimensional data - by building the CAVE (VT-CAVE). Concurrently,
Sun Microsystems, Inc. and Visual Numerics, Inc. co-sponsored
the creation of the Scientific Modeling and Visualization Classroom
(SMVC). Together, the VT-CAVE and SMVC allow students and faculty
link to high-performance computers and visualize their results
at their desks or in the CAVE. This article will describe how
this link is being built for educational and research projects,
and will focus on how JavaT and JWAVE was used to model, simulate
and visualize results.
- Evaluating
American-Style Call Option Prices Based on Constrained Least-Squares
Computing the current value of an American call option requires
solving the Black-Scholes PDE. The numerical computation involves
solving this free boundary problem. A finite difference approximation
leads to a linear complementarity problem with a tridiagonal matrix.
With this paper Visual Numerics examines an efficient technique
for solving a related quadratic programming problem. This development
is based on a non-negative constrained least-squares (NNLS) algorithm.
Three examples are given, including graphics illustrating the
solutions.
- Creating
DLLs for Use by LINKNLOAD in PV-WAVE® on Windows
This document describes the steps to create a DLL for use by LINKNLOAD
in PV-WAVE on the Windows platform using Microsoft Developer Studio
97 with Visual C++ 5.0. This document is meant to supplement the
material found in the LINKNLOAD entry in the on-line help. Although
the emphasis of this document is on using LINKNLOAD on the Windows
platform, LINKNLOAD users on other platforms may find some of
the examples beneficial.
- Aasen's Method
for Linear Systems with Self-Adjoint Matrices
Aasen's algorithm is effective for solving systems of linear algebraic
equations with self-adjoint matrices. This note gives the formulas
for complex matrices and also mentions a technique for stabilizing
the diagonal elements of the tri-diagonal factor.
- High Performance
Fortran Versus Explicit Message Passing on the IBM SP-2
The goal of this work was to provide high-performance parallel
implementations of the LU, QR, and Cholesky factorizations and
their associated solvers in double precision and double precision
complex for the IBM SP-2 for Visual Numerics. For ease of development
and maintenance, the hope was that this could be done by implementing
these routines in High Performance Fortran (HPF), rather than
using explicit message passing. For usability with existing VNI
libraries, these implementations were required to work with advanced
Fortran 90 features such as derived data types, modules, user-defined
operators, and user-defined generic procedures.
- Task Allocation
and Performance Measures for the Box Data Type
The Visual Numerics, Inc. IMSL Distributed Network Fortran Library
product has generic functions and operators. One of the types
valid for these functions is the box data type. This paper will
illustrate the basic algorithms and design for the DNFL box data
type functions, outline the basic task allocation algorithm, present
timing data that shows typical performance measurements, and present
results for matrix inverses, solutions of linear algebraic equations,
matrix products, Cholesky factorizations and two-dimensional discrete
Fourier Transforms.
- VDA Tool Technology
This white paper gives an overview of the exciting new features
of PV-WAVE. The VDA Tool Architecture is a framework for developing
cross-platform applications with graphic-user interfaces (GUIs)
in PV-WAVE. It is intended to put the VDA Tool Architecture into
context and position the PV-WAVE Environment as a development
tool.
- Connecting
PV-WAVE to ArcView and ARC/INFO
Many people see the advantage of using PV-WAVE from Visual Numerics
with ARC/INFO from ESRI. Each corporation has a number of products
that capture the worldwide market share of their respective markets.
Both product lines support an open and flexible environment where
world-class solutions can be developed using the outstanding features
of both products. This paper describes the available connection
methods.
- Using PV-WAVE
as a Web Browser Helper Application
The goal of a helper application is to allow users to distribute
PV-WAVE .pro and .cpr files over the Web. Click on a URL, which
links to a Wave file, and Wave fires up and executes the application
on your machine.
- PV-WAVE Net
Possibilities
The possibilities are endless. This paper includes just a few
of the ideas with links to examples. The basic methods are: Offline
Picture Generation, Server Applications - Batch Mode, Server Applications
- Interactive Mode, Client Plug-In, and Client Helper Applications.
- Efficient
Programming with PV-WAVE Widgets
This paper details the recommended programming practices within
PV-WAVE Widgets to reduce the occurrence of errors generated due
to the lack of virtual memory. The intended audience is all user's
of PV-WAVE Widgets concerned with memory management and the use
of temporary variables in PV-WAVE Widgets. The core purpose of
this document is to enlighten the software developer as to a more
efficient ways of making use of PV-WAVE Widgets so that their
applications may grow to be more robust and usable.
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