1-5 October 2007
Europe Congress Center
Europe/Zurich timezone

The Stellar Spectra Modeling as an example of data- and compute-intensive application running on the BalticGrid Project testbed

Not scheduled
20m
Europe Congress Center

Europe Congress Center

Budapest Hungary
On-line Demo Demo and Poster session

Speakers

Mr Bartek Palak (Poznań Supercomputing and Networking Center) Mr Sarunas Mikolaitis (Institute of Theoretical Physics and Astronomy of Vilnius University)

Describe the scientific/technical community and the scientific/technical activity using (planning to use) the EGEE infrastructure. A high-level description is needed (neither a detailed specialist report nor a list of references).

We present The Stellar Spectra Modeling package SYNTSPEC – the gridified tool for stellar spectra analysis – as an example of data- and compute-intensive application running on the testbed of the EU BalticGrid Project (http://www.balticgrid.org) – interoperable with EGEE resources and complementary with the EGEE infrastructure. The application brings the new quality to the research in the field of astrophysics in the Baltic States and accelerates the integration of science in EU.

Describe the added value of the Grid for the scientific/technical activity you (plan to) do on the Grid. This should include the scale of the activity and of the potential user community and the relevance for other scientific or business applications

The BalticGrid project is of high strategic importance for the Baltic States. The primary goal of the BalticGrid project is to establish a production-level, interoperable and complementary with the EGEE grid infrastructure, which enables scientists in the Baltic States to access critical resources, to form effective research collaborations and share efficiently unique instruments and data. It also rapidly increases the knowledge and use of grids in the Baltic States.
The usage of computing and networking grid infrastructure of the project has a significant impact on scientific communities, validated through everyday work of the scientists studying the Baltic Sea environment, bioinformatics, high energy physic, astrophysics and other sciences.
The real life example could be the SYNTSPEC application, which thanks to usage of project resources is able to calculate synthetic stellar spectra of significant wavelenght ranges and serves for the galactic and stellar research studies.

Report on the experience (or the proposed activity). It would be very important to mention key services which are essential for the success of your activity on the EGEE infrastructure.

The SYNTSPEC is a very good example of an application that benefits usage of the BalticGrid testbed because of the need of powerful computing resources and high network throughput.
The application calculates normalized to the continuum stellar spectra that serve for determinations of e.g. chemical composition, effective temperatures and surface gravities of stars. Initially, it was used for modeling of small spectral regions, however the requirements increase rapidly, so the possibility of using grid infrastructure is a crucial way to accumulate enough resources for the analysis of massive data. This is very important in a preparation of infrastructure and procedures for analysis of large quantities of spectra that will be produced by the European Space Agency’s GAIA space observatory to be launched in 2011.
The application for its submission, execution, monitoring and visualization of results exploits such EGEE services and components like WMS, LFC, CE, L&B, UI, SE, WN.

Abstracts for online demonstrations must provide a summary of the demo content. Places for demos are limited and this summary will be used as part of the selection procedure. Please include the visual impact of the demo and highlight any specific requirements (e.g. network connection). In general, a successful demo is expected to have some supporting material (poster) and be capable of running on a single screen or projector.

We intend to show a live-demo of the SYNTSPEC lifecycle, starting from defining of input files and computing parameters, submission of the job to the BalticGrid testbed, job monitoring, and ending with visualization of results. We will demonstrate how stellar spectra change because of the resolving power, because of stellar rotation and other parameters. Very important is a visual aspect of the presentation. The application will be run within "The Migrating Desktop" (MD) – advanced graphical user interface similar to a window-based operating system that hides the complexity of the grid middleware and makes access to the grid resources easy and transparent. We believe that the interesting scientific content of our demo combined with intuitive interface will attract the audience’s attention. We will also present posters about the BalticGrid Project and MD, as well as several types of broshures. A single screen and a network connection is needed to present the live-demo.

Primary authors

Mr Bartek Palak (Poznań Supercomputing and Networking Center) Prof. Grazina Tautvaisiene (Institute of Theoretical Physics and Astronomy of Vilnius University) Mr Sarunas Mikolaitis (Institute of Theoretical Physics and Astronomy of Vilnius University)

Presentation Materials

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