nanoHUB will be intermittently unavailable due to scheduled host maintenance on Sunday, June 30th, 2019 from 7:00 am ET through 12:00 pm ET. All tool sessions will be expired. We apologize for any inconvenience.
Calculating Resonances Using a Complex Absorbing Potential
out of 5 stars
13 Mar 2008 | | Contributor(s):: Robin Santra
The Siegert (or Gamow) wave function associated with a resonance state is exponentially divergent at large distances from the scattering target. A complex absorbing potential (CAP) provides a computationally simple and efficient technique for calculating the complex Siegert energy of a resonance...
Nanoelectronic Modeling: Multimillion Atom Simulations, Transport, and HPC Scaling to 23,000 Processors
07 Mar 2008 | | Contributor(s):: Gerhard Klimeck
Future field effect transistors will be on the same length scales as “esoteric” devices such as quantum dots, nanowires, ultra-scaled quantum wells, and resonant tunneling diodes. In those structures the behavior of carriers and their interaction with their environment need to be fundamentally...
Introduction to the nanoHUB for Contributors
02 Feb 2008 |
This series is a collection of introductory talks describing how you can upload your own content onto nanoHUB.
Developing Tools for nanoHUB.org
23 Jan 2008 | | Contributor(s):: Michael McLennan
The nanoHUB lets you access simulation tools online via an ordinary web browser. Where do the tools come from? From you--hundreds of you throughout the world who are developing nanotechnology modeling tools. Anyone can upload their own code onto nanoHUB and publish a tool for a limited group of...
Development of a Nanoelectronic 3-D (NEMO 3-D ) Simulator for Multimillion Atom Simulations and Its Application to Alloyed Quantum Dots
14 Jan 2008 | | Contributor(s):: Gerhard Klimeck, Timothy Boykin
Material layers with a thickness of a few nanometers are common-place in today’s semiconductordevices. Before long, device fabrication methods will reach a point at which the other two devicedimensions are scaled down to few tens of nanometers. The total atom count in such deca-nanodevices is...
Perspectives on Computational Quantum Chemistry
20 Dec 2007 | | Contributor(s):: Martin P. Head-Gordon
This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational science and engineering.
Challenges and Strategies for High End Computing
20 Dec 2007 | | Contributor(s):: Katherine A. Yelick
NanoElectronic MOdeling: NEMO
20 Dec 2007 | | Contributor(s):: Gerhard Klimeck
This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational science and engineering.Novel nanoelectronic devices such as quantum dots, nanowires, and ultra-scaled...
Session 3: Discussion
20 Dec 2007 |
Discussion led by Jim Demmel, University of California at Berkeley.
Computational Mathematics: Role, Impact, Challenges
20 Dec 2007 | | Contributor(s):: Juan C. Meza
Computational Modeling: Experience from my Bell Lab Days
19 Dec 2007 | | Contributor(s):: Muhammad A. Alam
Excellence in Computer Simulation
19 Dec 2007 | | Contributor(s):: Mark Lundstrom, Jeffrey B. Neaton, Jeffrey C Grossman
Computational science is frequently labeled as a third branch of science - equal in standing with theory and experiment, and computational engineering is now an essential component of technology development and manufacturing. The successes of computational science and engineering (CSE) over the...
HPCW Introduction to Parallel Programming with MPI
05 Dec 2007 | | Contributor(s):: David Seaman
Single-session courseillustrating message-passing techniques. The examples include point-to-pointand collective communication using blocking and nonblocking transmission. Oneapplication illustrates the manager/worker model with buffered communications.Code examples provided in C, C++, Fortran 77,...
Using Workspaces on nanoHUB.org
24 Aug 2007 | | Contributor(s):: Michael McLennan
One of the most powerful tools on nanoHUB is something we call a workspace, which is a full-featured Linux desktop that you can access any time, any place, from your web browser. Workspaces are fully loaded with the latest nanoHUB software stack, including the Rappture toolkit, Octave, Scilab, a...
Using Subversion for Source Code Control
14 Aug 2007 | | Contributor(s):: Michael McLennan
If you're developing software, you should be storing your code in a source code control system. The nanoHUB team recommends Subversion, because it is easy to use, open source, and available on Unix/Linux, Windows, MacOSX, and many other systems. Subversion is similar to the popular CVS system...
SUGAR: the SPICE for MEMS
21 May 2007 | | Contributor(s):: Jason Clark
In this seminar, I present some design, modeling, and simulation features of a computer aided engineering tool for microelectromechanical systems (MEMS) called SUGAR. For experimental verification, I use a microdevice that is difficult to simulate with conventional MEMS software. I show that the...
Is Seeing Believing? How to Think Visually and Analyze with Both Your Eyes and Brain
26 Mar 2007 | | Contributor(s):: David Ebert
This presentation will cover the basic techniques, and some of the available tools, for visualization, and will explain how to avoid miscommunicating information from visualizations.
nanoHUB Grid Appliance
21 Dec 2006 | | Contributor(s):: Renato Figueiredo
The Grid appliance allows nanoHUB users to run a development "virtual workspace" in their own desktop. The workspace has a Linux-based virtual machine with Rappture, WebDAV and Condor pre-installed and pre-configured, encapsulating conveniently all the software needed to run these applications,...