SCHEDULE: NOV 16-21, 2014

When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.

ENTIRE WEEK SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY

Real-Time Outlier Detection Algorithm for Finding Blob-Filaments in Plasma

SESSION: ACM Student Research Competition Poster Reception

EVENT TYPE: ACM Student Research Competition

TIME: 5:15PM - 7:00PM

AUTHOR(S):Lingfei Wu

ROOM:New Orleans Theater Lobby

ABSTRACT:

Magnetic fusion could be an inexhaustible, clean, and safe solution to the global energy needs. The success of magnetically confined fusion reactors demand steady-state plasma confinement which is challenged by the edge turbulence such as the blob-filaments. Real time analysis can be used to monitor the progress of fusion experiments and prevent catastrophic events. We present a real-time outlier detection algorithm to efficiently find blobs in the fusion experiments and numerical simulations. We have implemented this algorithm with hybrid MPI/OpenMP and demonstrated the accuracy and efficiency with a set of data from the XGC1 fusion simulations. Our tests show that we can complete blob detection in a few milliseconds using a cluster at NERSC and achieve linear time scalability. We plan to apply the detection algorithm to experimental measurement data from operating fusion devices. We also plan to develop a blob tracking algorithm based on the proposed method.