Oakley

HOWTO: Use ulimit command to set soft limits

This document shows you how to set soft limits using ulimit command.

The ulimit command sets or reports user process resource limits. The default limits are defined and applied when a new user is added to the system. Limits are categorized as either soft or hard. With the ulimit command, you can change your soft limits for the current shell environment, up to the maximum set by the hard limits. You must have root user authority to change resource hard limits.

SIESTA

SIESTA is both a method and its computer program implementation, to perform efficient electronic structure calculations and ab initio molecular dynamics simulations of molecules and solids. More information can be found from here.

2014/04 - Invited talk: MVAPICH

The April 2014 HPC Tech Talk (Tuesday, April 22th from 4-5PM) will provide some brief OSC updates, have a user-driven Q&A session, and will close with an invited talk about MPI-3 from the MVAPICH developers from The Ohio State University. To get the WebEX information and add a calendar entry, go here. Slides are available below.

Charging for memory use

On July 24th, 2014, OSC implemented changes to the Resource Unit (RU) calculation formula. Academic RU allocations are still fully subsidized by the State of Ohio.

In the past, only processor use in batch jobs was considered when calculating RUs. The change in our charging policy will reflect the fact that memory is also a scarce resource that should be accounted for in RU charges. The proposed change affects only Oakley jobs that request more than 4GB memory per processor (core).

Compilation Guide

As a general recommendation, we suggest selecting the newest compilers available for a new project. For repeatability, you may not want to change compilers in the middle of an experiment.


Oakley

We recommend the Intel compilers on Oakley.

LS-PrePost

Introduction

LS-PrePost is an advanced pre and post-processor that is delivered free with LS-DYNA. The user interface is designed to be both efficient and intuitive. LS-PrePost runs on Windows, Linux, and Unix utilizing OpenGL graphics to achieve fast rendering and XY plotting. The latest builds can be downloaded from LSTC's FTP Site.

 

User-Defined Material for LS-DYNA

This page describes how to specify user defined material to use within LS-DYNA.  The user-defined subroutines in LS-DYNA allow the program to be customized for particular applications.  In order to define user material, LS-DYNA must be recompiled.

Availability

LS-DYNA with user defined material models are only available on the Glenn Cluster.

Version

The following versions on Glenn are available for use with user defined material models:

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