OSG Document 249-v1

Visual Composition Environment (ViCE) for Grid Workflows

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Submitted by:
Mari Herrera
Updated by:
Selitha Raja
Document Created:
16 Aug 2005, 09:06
Contents Revised:
16 Aug 2005, 09:06
Metadata Revised:
22 Feb 2007, 14:47
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Visual Composition Environment (ViCE) for Grid Workflows
We will demonstrate a prototype version of our Visual Composition Environment (ViCE). ViCE is a collaborative scientific workflow system that supports the latest Grid Service standards. ViCE allows complex workflows to be described, manipulated, and run using a graphical interface. ViCE supports collaborative access, each partner in the collaboration can view the workflow, suggest changes using integrated chat capabilities, and monitor the tasks once they have started.

This demonstration shows a typical bioinformatics workflow -- a BLAST search of an unknown gene sequence against several genome databases (in parallel) followed by tree generation to find the most common ancestor to the unknown gene sequence. Through ViCE we will use GridFTP to move the query sequence entered by the scientist to a cluster housed at LBNL, GRAM to schedule the BLAST searches for remote execution, GridFTP to move the resulting data back, and a local tree builder to construct the phylogenetic tree (demonstrating synchronous and asynchronous tasks, high-performance data movement, as well as local and remote execution). We are also interested in discussing with attendees our ideas for enhanced collaborative features (locking, run-time user error compensation, dynamic user-customized views of ongoing workflow, and smarter algorithms for resolving conflicting data).

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Consortium Mtg: Milwaukee held from 20 Jul 2005 to 22 Jul 2005
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