Ames Research Center

Download Tiff (6.8M)	AM/FM Active Metadata/Field Model Active metadata (AM) -- data about data -- play an essential role in science. Typical metadata include experimental parameters, initial conditions, and preliminary distillations of raw data. The Field Model (FM) project is an effort to develop a common data model for field data. Together, these two projects will provide a more complete solution for scientists.
Download Tiff (5.3M)	Computational Aerospace Sciences (CAS) The Computational Aerospace Sciences (CAS) project is one of five projects within the High Performance Compu ting and Communications (HPCC) program.
Download Tiff (4.2M)	DeBakey Heart Assist Device The use of Computational Fluid Dynamics (CFD) technology has lead to major design improvements on the DeBakey heart assist device, enabling its human implantation. Ames scientist s employed Shuttle main engine technology and CFD modeling capabilities, coupled with the NAS Systems Division's high-performance computing technology, to make several design modifications that vastly improved the heart device's performance.
Download Tiff (4.4M)	Foil Simulation and Engine Simulation This technically accurate simulation software is intended to allow educators and students to explore key concepts of wing and engine design. Based on data derived from NASA and other research, it allows the examination of cause and effects relationships by allowing the modification of key variables.
Download Tiff (6.1M)	Growler Software Growler is a modular scientific visualization system whose development has been guided by our desire to perform remote data visualization, remote computational steering, heterogeneous data analysis, and multi-user collaboration. Growler is based on a high-performance distributed component model, involving interdependent computational and graphical modules. Most modules are inherently collaborative, in that multiple remote users may take part in and control the same visualization environment.
Download Tiff (3.6M)	ILab: Parameter Study Creation and Submission on the IPG Parameter study creation and submission has been fully automated with this GUI-based tool. In addition, the greatest impediment to user acceptance of the Information Power Grid /Globus model has been overcome: the job control language, which is required for submitting into the IPG/Globus processing environment, has been eliminated. Our GUI tool first automates the creation of parameter studies of arbitrary dimension and then automatically creates all Globus job control language (RSL decks and auxiliary shell scripts) required to actually set up and invoke Globus jobs on the IPG.
Download Tiff (6.6M)	Information Power Grid (IPG) Launch Pad The IPG Launch Pad is a web-based user portal to NASA's Information Power Grid. The Launch Pad provides IPG users with the ability to: view the status of grid resources; prepare, launch, and track jobs; manipulate files at remote locations; and customize the environment to create a personalized view of the portal.
Download Tiff (4.3M)	Interactive Multi-Media NASA is reaching into America's classrooms to make a difference in math, science, and technology education. The Internet is being used as the primary medium for live interactions with scientists, virtual electronic field trips, collaborative projects, and distance learning activities. The NASA Learning Technologies s Project offers over 50 interactive multimedia projects to provide standards-based learning environments for the use of NASA's scientific data.
Download Tiff (5.0M)	Large-Scale Parallel Distributed Computing A virtual computing environment that integrates computer resources at different sites -- collectively known as NASA's Information Power Grid (IPG) -- is employed to simulate a large-scale memory and CPU-intensive aerospace application. This illustrates how IPG technology can be used to obtain a rigorous wake flow solution around the hovering rotors of a helicopter, where flow features are dominated by complex vortex dynamics.
	Learning Technologies The HPCC Learning Technologies Project is a leader in NASA-based Educational Technology. LTP researches and develops products and services that use NASA information and that facilitate the transfer of scientific know ledge to the formal and informal education community. LTP offers educators over 50 innovative projects that are based on NASA content and that draw students to careers in math and science. The LTP video represents an overview of the project and the various features of it.
Download Tiff (18.8M)	NASA Research & Education Network Project is NASA's cornerstone of the Next Generation Internet. The NREN Project works with federal agencies, academia and industry partners to develop technologies and services to support high performance networks th at enable revolutionary applications and demonstrations.
Download Tiff (5.1M)	Parallelization Toolkit in the Legacy Code Modernization Project With the rapid evolvement of high-performance computing systems, code parallelization for new architectures becomes more and more challenging. The process is time consuming and error prone. Automation with tools reduces porting cost and allows fast code development. The parallelization toolkit performs accurate and in-depth program analyses, transforms codes as necessary, and generates parallel codes under nominal user interaction.
Download Tiff (18.8M)	Scalable Climate Modeling on Origin 2000 Recently the NASA Ames Research Center's NAS Systems Division and the Goddard Space Flight Center's Data As similation Office began a joint effort to dramatically increase the performance of NASA's next generation climate predicting Data Assimilation System (DAS). The effort is focused on inserting the highly scalable Multi-Level Level Parallelism (MLP) technique into the DAO codes.
Download Tiff (5.2M)	Support for Debugging Automatically Parallelized Programs A system that simplifies the process of debugging programs produced by computer-aided parallelization tools. The system uses relative debugging techniques to compare serial and parallel executions in order to show where the computations begin to differ. If the original serial code is correct, errors due to parallelization will be isolated by the comparison.
Download Tiff (3.2M)	Telescopes in Education The Telescopes in Education (TIE) program brings the opportunity to use a remotely controlled telescope and charge-coupled device (CCD) camera in a real-time, hands-on, interactive environment to students around the world. TIE enables students to increase their knowledge of astronomy, astrophysics, and mathematics. The TIE program currently utilizes a science-grade 24-inch reflecting telescope located at the Mount Wilson Observatory in Southern California. An additional telescope will be added this year in Chile to allow students to observe the Southern Hemisphere.
Download Tiff (4.5M)	Web-Based Interactive Mars Data Archive This facility serves as a means for Web-based exploration of data returned by Mars robotic missions, as well as a resource for mission landing site planners.
Glenn Research Center
Download Tiff (971k)	Aircraft Engine Combustor Simulation The Low NOx Combustion team was awarded a Turning Goals Into Reality Award for demonstrating a total NOx emissions reduction of 50% from the 1996 International Civil Aviation Organization standards for large and regional size subsonic engines. New engines with this technology are expected to start entering into service in the year 2002. The final goal is to reduce the NOx emissions by a factor of 3 (or 70% reduction) from 1996 levels.
Download Tiff (4.8M)	Flight Safety The AvSP processes flight data that was previously gathered for arrivals and departures through take-off and landi ng, as well as, weather information, aircraft models, GRC engine models, ARC wing models, and combined systems all executing within an integrated framework.
Download Tiff (5.1M)	Heterogeneous Cluster Computing The Dynamic Load Balancing Tool improves the execution time of ADPAC (An Advanced Ducted Propfan Analysis Code) r unning in parallel on local area and wide area networks formed by combined Unix and Windows/NT environments
Download Tiff (5.2M)	Immersive Physics NASA Glenn is exploring advanced interactive displays for improved enginering an alysis.
Download Tiff (4.1M)	Local and Wide Area Computing When multi-user computers are used for running parallel jobs, load balancing the computers is essential for taking the advantage of parallel and distributed processing.
Download Tiff (3.3M)	Multiclustering using Load Sharing Facility (LSF) At the Glenn Research Center, the Space-Time Conservation Element and Solution Element (CE/SE) Method is currently being applied to large-scale numerical flow s imulation in chemically reacting flows and computational aeroacoustics (CAA).
Download Tiff (5.0M)	NASA Glenn Aeroshark Cluster The Pentium III Aeroshark cluster is a network of 64 compute nodes (128 CPUs. Each node has two network interfaces; one for message passing traffic, and the other for disk and system I/O. The cluster is used to execute significant turbomachinery simulations in a production mode.
	NASA Glenn Power Grid Challenge The Multifidelity Engine Model consists of CORBA analysis elements that simulate the high pressure compressor/combustor/turbine subsystem coupled with the low pressure compress or/turbine subsystem of a turbine engine.
	Numerical Propulsion System Simulation The Numerical Propulsion System Simulation (NPSS) is developing an object orient ed framework for Aerospace Propulsion with the integration of multiple disciplin es such as aerodynamics, structure, and heat transfer with numerical zooming on component codes.
	Wrapping Legacy Scientific Applications A distributed object is a reusable, self-contained piece of software that cooper ates with objects in a plug-and-play fashion. Many scientific applications in a erodynamics and solid mechanics are written in Fortran. Refitting these legacy Fortran codes with distributed objects can increase the code reusability. At the Glenn Research Center, we are developing efficient technologies and tools to integrate aerospace applications into a distributed object framework. These three figures show different wrapping techniques (developed by J. Sang, C. Kim and I . Lopez.)
Goddard Space Flight Center
	Beowulf System Software The latest system software works to implement a Beowulf aware environment that presents a single system image to t he user. No longer simply a collection of computers, a Beowulf is a computing system with a collection of processing resources.
Download Tiff (6.0)	Journeys through Earth and Space Why are the Rocky Mountains so far inland? How do we preserve the changing Amazon rain forest? When will the sun fling parts of itself towards Earth? NASA is tackling questions like these inside supercomputers. Here, billions of calculations per second recreate the universe mathem atically. Supercomputers can process observations into a motion picture. Or, they can solve equations that describe realities seen and unseen . To understand and predict nature through computation, NASA started the Earth and Space Sciences (ESS) Project. It is a unit of the agency's High Performance Computing and Communications Program.
Jet Propulsion Laboratory (JPL)
Download Tiff (6.4M)	Digital Sky Virtual Observatory The Digital Sky Virtual Observatory (DSVO) Project will help create a "National Virtual Observatory" (NVO) that will provide an intuitive, comprehensive way to remotely navigate immense celestial datasets.
Download Tiff (4.4M)	Distributed In-situ Mission Simulation Virtual Mission project at JPL employees modeling and simulation technology to create a software-based mission lifecycle in order to validate the mission system design in a comprehensive manner. The Virtual Mission Lifecycle develops subsystem behavior models based on performance and operation properties of each subsystem, integrates the subsystem models via an operation executive, and executes realistic observation scenarios by providing a synthetic mission environment.
Download Tiff (4.8M)	Pyramid: Parallel Unstructured Adaptive Mesh Refinement is a software library for performing parallel adaptive mesh refinement on unstructured meshes. It uses triangular or tetrahedral elements for the adaptive mesh. A suite of well-designed and efficiently implemented modules that perform operations in a typical parallel AMR process are included. The library is implemented in Fortran 90 with MPI and it supports mesh quality control, adaptive refinement, load balancing, mesh migration, and visualization all in parallel.
Download Tiff (4.0M)	Remote Exploration and Experimentation (REE) Project From Commercial Availability to Space in 18 months 100X Performance over Current Radiation-hardened Systems Applications Development on Commercial Systems
Langley Research Center
Download Tiff (4.9M)	Multidisciplinary Optimization Research is underway to apply high-performance computing technologies to the multidisciplinary design optimization (MDO) of Reusable Launch Vehicles (RLV). Various analysis codes are being integrated using a commercially-developed framework such as iSIGHT. The framework allows the use of networked heterogeneous workstations, vector supercomputers, and a scalable parallel testbed. The framework also allows easy addition or deletion of analysis codes and facilitates changes in the control flow of the MDO process through a graphical user interface.