SuperComputing 2002, Nov. 16-22, 2002 in Balt., MD.
Demonstrations in the ANL, LBNL and Utah Exhibit Floor Booths
Presentations in the DOE SciDAC Booth

The National Fusion Collaboratory Project discussed and demonstrated new capabilities at the SuperComputing 2002 Meeting. More information on these demonstrations is available in a series of handouts (PDF) that were distributed at the meeting. Additionally, a presentation was made in the DOE SciDAC booth that summarized the status of the NFC Project and that highlighted the various demonstrations. Photographs from the meeting are available here.

FusionGrid Demonstration with TRANSP

TRANSP on the FusionGrid was used to perform scientific data analysis that was presented at the recent APS/DPP meeting. The TRANSP FusionGrid demonstration was composed of six components securely interacting through a Globus-enabled implementation of the MDSplus data repository framework:

• PreTRANSP GUI for setting up the TRANSP inputs and starting the run (at APS/DPP)
• An MDSplus data server where TRANSP data is read from and written to (at GA)
• TRANSP, a tokamak data analysis & simulation package (at PPPL)
• Remote monitoring of the status of the TRANSP analysis job (at APS/DPP)
• Scientific visualization of the data with Multigraph (at APS/DPP)
• Visualization of the interactions between components (at APD/DPP)

Preemptive Scheduling on the FusionGrid

The ability to perform preemptive scheduling that will be critical for between-pulse data analysis was demonstrated. This capability is often referred to as a guaranteed Qualify of Service (QoS). In order to finish within a stipulated deadline urgent runs may preempt long running executions. In this demo, a client first negotiates a time-limited execution of an EFIT application and obtains a Service Level Agreement (SLA) promising execution within a certain time. Then the client submits two identical EFIT executions but one with the SLA and one without. The urgent EFIT execution preempts the non-urgent one, finishes earlier despite being submitted later, and finishes with the requested time bound.

Scientific Visualization Demonstration with SCIRun

SCIRun was used to perform scientific visualization that was presented at the recent APS/DPP meeting. The SCIRun demonstration was composed of reading NIMROD data from MDSplus in San Diego and rendering various visualizations.

Remote Shared Visualization with DMX & Access Grid

Shared visualization and remote collaboration was demonstrated between a portable tiled wall and a Linux workstation. DMX software was used to share an IDL graphics application (ReviewPlus) and an OpenGL visualization application (SCIRun) between a Linux workstation and a tiled display wall. This capability is targeted at scientists who want to have an interactive discussion at a distance while sharing and interacting with the same visualization. The tiled wall was also configured as an Access Grid node and it was connectec to the Linux laptop that was acting as a Portable Access Grid node (PIG). The Access Grid technology allows shared video and audio streams as well as shared applications.

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