Submitted by lev_lafayette on Thu, 05/14/2009 - 06:34
Developed by D.E. Shaw Research, Desmond performs high-speed molecular dynamics simulations of biological systems using parallel algorithms and numerical techniques. The
README.txt explains the horror that will prevail...
Submitted by lev_lafayette on Wed, 05/13/2009 - 02:12
NAMD is a parallel molecular dynamics code for large biomolecular systems. Version 2.7b1 has some advantages over 2.6 and an extensive user's guide. CUDA (Compute Unified Device Architecture) is a parallel computing architecture developed by NVIDIA providing a computing engine in NVIDIA graphics processing units or GPUs. It should make NAMD awesome, if it works.
Submitted by lev_lafayette on Mon, 05/11/2009 - 07:33
Dreadmwidth/Livejournal Collaboration for ARCS v0.1, May 11, 2009
1. What is this?
A proposal to use the free and open source technologies used by Livejournal (livejournal.com) and further developed by Dreamwidth (dreamwidth.org) to create an effective social collaboration and journaling site for Australian researchers.
Submitted by lev_lafayette on Mon, 05/11/2009 - 06:00
The Access Grid FAQ v0.2, May 11, 2009
1.1 Where can I find an up-to-date copy of this FAQ?
1.2 Who wrote this FAQ?
2.0 About Access Grid
2.1 What is The Access Grid?
2.2 Where is it used and by how many people?
3.0 Setting Up Hardware and Software
3.1 What software is required?
3.2 What hardware is required?
4.0 Basic Operations
4.1 How do I manage the Venue Client?
4.2 How do I join A Venue?
4.3 How do I enable sound?
4.4 How do I enable video?
4.5 What is multicast/unicast? How do I change between multicast and unicast?
Submitted by lev_lafayette on Thu, 05/07/2009 - 00:08
Underworld is a "3D-parallel geodynamic modelling framework capable of deriving viscous / viscoplastic thermal, chemical and thermochemical models consistent with tectonic processes, such as mantle convection and lithospheric deformation over long time scales.... Underworld utilises a Lagrangian particle-in-cell finite element scheme (the prototype of which is the Ellipsis code), and is visualised using gLucifer."
Submitted by lev_lafayette on Wed, 05/06/2009 - 14:00
Also available at the Access Grid website.
Purpose of the Document
The Access Grid is a software suite that provides video, audio and file collaboration, built on well-known streaming audio (Robust Audio Tool, or RAT) and Vic (Video Conferencing tool). This document seeks to help network administrators implement Access Grid with respect to local security policies and firewalls.
Submitted by lev_lafayette on Tue, 05/05/2009 - 06:58
This is the procedure for compiling OpenMPI with Portland group versions of C, C++ and Fortran. Part of the continuing adventure of installing Underworld on Wexstan.
First, collect the necessary modules:
module load pgi/7.2, Download and extract (
tar xvf openmpi-1.3.2.tar.gz) openmpi in the appropriate place (
Submitted by lev_lafayette on Sun, 05/03/2009 - 12:35
What do you do when you receive a "bad superblock" error on a USB or other Flash drive? Well, firstly you kick yourself for not backing up important data on said drive for the past nine days; you're old enough to know better than that. Secondly, you kick yourself for using that piece of rubbish called the FAT32 filesystem which was default for Windows 95, but is what every USB drive ships with because it's the last file format released by Microsoft that actually communicates with other operating systems, despite the fact that it's as buggy as hell and is prone to disaster.
Submitted by lev_lafayette on Sun, 04/26/2009 - 23:20
From their website.
VAMP/VASP [Vienna Ab-initio Simulation Package] is a package for performing ab-initio quantum-mechanical molecular dynamics (MD) using pseudopotentials and a plane wave basis set. The approach implemented in VAMP/VASP is based on a finite-temperature local-density approximation (with the free energy as variational quantity) and an exact evaluation of the instantaneous electronic ground state at each MD-step using efficient matrix diagonalization schemes and an efficient Pulay mixing. These techniques avoid all problems occurring in the original Car-Parrinello method which is based on the simultaneous integration of electronic and ionic equations of motion. The interaction between ions and electrons is described using ultrasoft Vanderbilt pseudopotentials (US-PP) or the projector augmented wave method (PAW). Both techniques allow a considerable reduction of the necessary number of plane-waves per atom for transition metals and first row elements. Forces and stress can be easily calculated with VAMP/VASP and used to relax atoms into their instantaneous groundstate.
Or, in other words...
Submitted by lev_lafayette on Mon, 04/20/2009 - 00:15
Further adventures in attempting to install Underworld 1.2 on Wexstan.
Previous instruction for installing Mesa largely work, but with the following exceptions.
Use a new directory name and run the configuration as modified...
mkdir -p /usr/local/mesa/7.4
... and discover a new and interesting failure.
checking for LIBDRM... configure: error: Package requirements (libdrm >= 2.4.3) were not met: