When viewing the Technical Program schedule, on the far righthand side
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stored there. As you select events in this manner, you will have your
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You can also create your personal schedule on the SC11 app (Boopsie) on your smartphone. Simply select a session you want to attend and "add" it to your plan. Continue in this manner until you have created your own personal schedule. All your events will appear under "My Event Planner" on your smartphone.
ISABELA-QA: Query-driven Data Analytics over ISABELA-compressed Extreme-Scale Scientific Data
SESSION: Querying Large Scale Data
EVENT TYPE: Paper
TIME: 4:30PM - 5:00PM
AUTHOR(S):Sriram Lakshminarasimhan, Jonathan Jenkins, Robert Latham, Robert Ross, Nagiza F. Samatova, Isha Arkatkar, Zhenhuan Gong, Hemanth Kolla, Jackie Chen, Seung-Hoe Ku, C.S. Chang, Stephane Ethier, Scott Klasky
ABSTRACT: We present a query processing engine for scientific data based on ISABELA, a partitioned B-spline-lossy-compression scheme. We optimize spatial region and variable queries on variable and temporal constraints by performing temporal-delimited binning on the range of the variable values, ensuring near-uniform distribution of compressed data across bins. We demonstrate the high, user-controlled accuracy of reconstructed data through several analytic scenarios, and the competitive performance of variable/temporal-constrained query processing, while incurring both a smaller memory and storage footprint compared to both raw data and popular scientific database systems. Finally, we discuss a number of HPC optimizations, such as parallel I/O and multi-node/multi-core query processing parallelized by temporal constraints, that allow extreme scale scalability.
Sriram Lakshminarasimhan - North Carolina State University
Jonathan Jenkins - North Carolina State University
Robert Latham - Argonne National Laboratory
Robert Ross - Argonne National Laboratory
Nagiza F. Samatova - Oak Ridge National Laboratory