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SCHEDULE: NOV 15-20, 2015
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Large-Scale Compute-Intensive Analysis via a Combined In-Situ and Co-Scheduling Workflow Approach
SESSION: In-Situ (Simulation Time) Analysis
EVENT TYPE: Papers
EVENT TAG(S): Applications, Analytics, Scientific Computing, Simulation
TIME: 3:30PM - 4:00PM
SESSION CHAIR(S): Suren Byna
AUTHOR(S):Christopher Sewell, Katrin Heitmann, Hal Finkel, George Zagaris, Suzanne T. Parete-Koon, Patricia K. Fasel, Adrian Pope, Nicholas Frontiere, Li-ta Lo, Bronson Messer, Salman Habib, James Ahrens
ROOM:18CD
ABSTRACT:
Large-scale simulations can produce tens of terabytes of data per analysis cycle, complicating and limiting the efficiency of workflows. Traditionally, outputs are stored on the file system and analyzed in post-processing. With the rapidly increasing size and complexity of simulations, this approach faces an uncertain future. Trending techniques consist of performing the analysis in situ, utilizing the same resources as the simulation, and/or off-loading subsets of the data to a compute-intensive analysis system. We introduce an analysis framework developed for HACC, a cosmological N-body code, that uses both in situ and co-scheduling approaches for handling petabyte-size outputs. We compare different analysis set-ups ranging from purely off-line, to purely in situ to in situ/co-scheduling. The analysis routines are implemented using the PISTON/VTK-m framework, allowing a single implementation of an algorithm that simultaneously targets a variety of GPU, multi-core, and many-core architectures.
Chair/Author Details:
Suren Byna (Chair) - Lawrence Berkeley National Laboratory|
Christopher Sewell - Los Alamos National Laboratory
Katrin Heitmann - Argonne National Laboratory
Hal Finkel - Argonne National Laboratory
George Zagaris - Lawrence Livermore National Laboratory
Suzanne T. Parete-Koon - Oak Ridge National Laboratory
Patricia K. Fasel - Los Alamos National Laboratory
Adrian Pope - Argonne National Laboratory
Nicholas Frontiere - University of Chicago
Li-ta Lo - Los Alamos National Laboratory
Bronson Messer - Oak Ridge National Laboratory
Salman Habib - Argonne National Laboratory
James Ahrens - Los Alamos National Laboratory
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