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Title: Large-scale compute-intensive analysis via a combined in-situ and co-scheduling workflow approach, In: SC '15 Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis

Conference · · PROCEEDINGS OF SC15: THE INTERNATIONAL CONFERENCE FOR HIGH PERFORMANCE COMPUTING, NETWORKING, STORAGE AND ANALYSIS
 [1];  [2];  [3];  [1];  [4];  [5];  [6];  [7];  [1];  [4];  [8];  [1]
  1. Los Alamos National Lab, Los Alamos, NM
  2. OLCF, Oak Ridge National Lab, Oak Ridge, TN
  3. High Energy Physics, Argonne National Lab, Lemont, IL
  4. Argonne National Lab, Lemont, IL
  5. ALCF, Argonne National Lab, Lemont, IL
  6. Lawrence Livermore Nat. Lab, Livermore, CA
  7. OLCF Oak Ridge National Lab, Oak Ridge, TN
  8. University of Chicago and Argonne National Laboratory

Large-scale simulations can produce hundreds of terabytes to petabytes of data, 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-scale 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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC)
OSTI ID:
1567400
Journal Information:
PROCEEDINGS OF SC15: THE INTERNATIONAL CONFERENCE FOR HIGH PERFORMANCE COMPUTING, NETWORKING, STORAGE AND ANALYSIS, Conference: International Conference for High Performance Computing, Networking, Storage and Analysis, Austin, Texas, November 15-20, 2015
Country of Publication:
United States
Language:
English

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