Monthly Archives: April 2011

Choosing a File System on Amazon EC2 – Part 2

In the last post, we looked at the performance and cost of data sharing options on the Amazon EC2, for one workflow: a mosaic of images of M17 computed with the Montage image mosaic engine, an I/O-bound application. Here we … Continue reading

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Choosing A File System When Running Applications on the Amazon EC2 Cloud

The cloud provides a powerful environment for running workflow applications, which communicate data between tasks using files.  The processing environment must provide access to files, either through a shared file system or by transferring data between nodes.  Amazon EC2 provides … Continue reading

Posted in astroinformatics, Astronomy, Cloud computing, cyberinfrastructure, Data Management, High performance computing, image mosaics, information sharing, jobs, Parallelization, programming, software engineering | Tagged , , , , , , , , , , , , , | Leave a comment

GPU’s vs. CPU’s: Apples vs. Oranges?

This will be the last of three posts on processing with GPU’s.  Jan Zverina and Peter Varhol wrote a couple of interesting articles on the applicability of GPU’s and CPU’s in scientific data processing. They made a convincing case that … Continue reading

Posted in astroinformatics, computer videos, cyberinfrastructure, Data Management, GPU's, High performance computing, information sharing, Parallelization, programming, software engineering, software maintenance, software sustainability | Tagged , , , , , , , , , , | 4 Comments

GPU’s in Astronomy: Critical Decisions for Early Adopters

Following on from last week’s post about Graphical Processing Units (GPU’s), I have been reading another paper by the same team from the Center for Astrophysics and Supercomputing, Swinburne University of Technology in Australia.  This paper, Fluke et al. (2011), … Continue reading

Posted in astroinformatics, Astronomy, cyberinfrastructure, GPU's, High performance computing, information sharing, Parallelization, programming, software engineering, software maintenance, software sustainability | Tagged , , , , , , , , , , | 2 Comments

The Use of Graphical Processing Units (GPU’s) In Astronomy

Graphical Processing Units (GPU’s) were designed in the first instance to handle graphics intensive applications. Their design is radically different from the Central Processing Units that power computers. Whereas a modern CPU has several cores, allowing small-scale parallelisation, a  GPU … Continue reading

Posted in Astronomy, cyberinfrastructure, GPU's, High performance computing, Parallelization, programming, software engineering, software maintenance | Tagged , , , , , , , , , | 4 Comments