sponsored byACMIEEE The International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 15-20, 2015

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Live Programming: Bringing the HPC Development Workflow to Life

SESSION: Live Programming: Bringing the HPC Development Workflow to Life

EVENT TYPE: Tutorials

EVENT TAG(S): Resiliency, Visualization

TIME: 1:30PM - 5:00PM

Presenter(s):Ben Swift, Andrew Sorensen, Henry Gardner, Viktor K. Decyk



This tutorial is for any HPC application programmer who has ever made a change to their code and been frustrated at how long it takes to see whether their change worked. We provide an introduction to tools for bringing the near-instant feedback of live programming to the HPC application development workflow. Through worked examples in the Extempore programming environment (http://github.com/digego/extempore), this hands-on tutorial will guide participants through the process of taking a scientific code (in C/C++ or Fortran), and running it "live"---so that parameters/subroutines can be examined and even modified with real-time feedback. This opens up a new development workflow for HPC application developers; instead of waiting hours for batch jobs to finish before receiving feedback on changes to the code, incremental modifications can be just-in-time compiled (through LLVM's efficient JIT compiler) and hot-swapped into the running process. Application developers will discover first-hand the opportunities (and challenges) of a more interactive development workflow, culminating in participating in and interactively programming a "live cluster" running across their laptops by the end of the tutorial.

Chair/Presenter Details:

Ben Swift - Australian National University

Andrew Sorensen - Australian National University

Henry Gardner - Australian National University

Viktor K. Decyk - University of California, Los Angeles

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