Category Archives: Globus

On the Open Science Grid Trail

The open science grid is a distributed heterogeneous network of computing clusters. Its infrastructure and protocols allow members to submit high throughput compute jobs for remote execution. All use is authenticated and authorized via a PKI infrastructure which associates jobs … Continue reading

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Engage Submit Host Architecture

Engage users log in to the submit host to run jobs on the OSG. It needs to move to a platform with better administrative support. It’s time to do some archaeology to find out what’s there then build a new … Continue reading

Posted in Compute Grids, condor, Engage VO, Globus, grid, High Throughput Computing (HTC), High Throughput Parallel Computing (HTPC), OSG, RENCI | Leave a comment

The OSG Compute Element – A Trip Report

In this post I’ll cover a few details, in hindsight, of setting up the Blueridge CE. There is plenty of documentation on how to set up an OSG compute element. Some of it is referenced from other posts on this … Continue reading

Posted in Compute Grids, Globus, grid, High Throughput Computing (HTC), multicore, OSG | Leave a comment

PMEMD on Blueridge

Baby steps. This is pmemd compiled against native MPI libraries executing on the RENCI Blueridge cluster. The job submission workflow uses the RENCI-CI script library. The job_run script uses Globus tools to transfer the pmemd application and input files to Blueridge. … Continue reading

Posted in Amber9, Compute Grids, Continuous Integration (CI), Engage VO, Globus, grid, High Throughput Computing (HTC), High Throughput Parallel Computing (HTPC), multicore, OSG, pmemd, RENCI | Leave a comment

iRODS in the Duke, NERSC, RENCI Collaboration

Research Data and Computation Scenario Here are some basic characteristics of the problem space we’re addressing in our collaboration with Duke Physics and NERSC: The Duke research team will run OSG grid jobs manipulating terabytes of data. The team will … Continue reading

Posted in Compute Grids, Data Grids, Globus, grid, iRODS, OSG | Leave a comment

Grid Jobs with OSG Matchmaker

Introduction Thanks to Mats for the very helpful advanced grid job example provided in the OSG Matchmaker documentation. This post is happening to help me understand what I’ve seen while working with it. It also discusses  tools that may help … Continue reading

Posted in Compute Grids, condor, Engage VO, Globus, grid, OSG, RENCI | Leave a comment

A Tier-3 Open Science Grid Compute Element

I. RENCI Blueridge as Compute Element RENCI’s new Open Science Grid (OSG) Compute Element (CE) will accept job submissions to be executed on the Blueridge cluster. A CE presents a uniform interface other OSG sites can use to submit jobs. … Continue reading

Posted in Compute Grids, Globus, grid, High Throughput Computing (HTC), OSG, RENCI | Leave a comment