Tutorial on Floating-Point Analysis and Reproducibility Tools for - - PowerPoint PPT Presentation

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Tutorial on Floating-Point Analysis and Reproducibility Tools for - - PowerPoint PPT Presentation

Oct 23, 2022 223 likes •312 views

Tutorial on Floating-Point Analysis and Reproducibility Tools for Scientific Software Ignacio Laguna, Harshitha Menon Lawrence Livermore National Laboratory Michael Bentley, Ian Briggs, Pavel Panchekha, Ganesh Gopalakrishnan University of Utah

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http://fpanalysistools.org/ → Tutorial Material → LANL

Tutorial on Floating-Point Analysis and Reproducibility Tools for Scientific Software

Michael Bentley, Ian Briggs, Pavel Panchekha, Ganesh Gopalakrishnan University of Utah

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Ignacio Laguna, Harshitha Menon Lawrence Livermore National Laboratory Hui Guo, Cindy Rubio González University of California at Davis Michael O. Lam James Madison University

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http://fpanalysistools.org/ → Tutorial Material → LANL

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Ignacio Laguna Ganesh Gopalakrishnan Ian Briggs Michael Bentley Pavel Panchekha Cindy Rubio González Michael Lam Hui Guo Harshitha Menon

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http://fpanalysistools.org/ → Tutorial Material → LANL

Objective of the Tutorial

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Floating-Point Analysis

GPUs Exceptions Compilers Optimizations Mixed-precision

Demonstrate tools can be used today Reproducibility & non-determinism (ND)

Data races Floating-point ND MPI & OpenMP Benchmarks

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http://fpanalysistools.org/ → Tutorial Material → LANL

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Everything is here: fpanalysistools.org

Tutorial Material → LANL

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SLIDE 5

http://fpanalysistools.org/ → Tutorial Material → LANL

AWS is Used to Run Exercises

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  • You will need:

○ Username, password, IP address

  • Accessing the AWS instance via ssh:

ssh [USERNAME]@[IP ADDRESS]

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SLIDE 6

http://fpanalysistools.org/ → Tutorial Material → LANL

Directory Structure

/home/user1/ |---Module-TOOL1 |---exercise-1 |---exercise-2 |---exercise-3 |---Module-TOOL2 |---exercise-1 |---exercise-2 |---exercise-3 ...

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http://fpanalysistools.org/ → Tutorial Material → LANL

Agenda

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Time Module Presenter 9:00 - 9:10am Introduction (housekeeping) Ignacio 9:10 - 9:30am Floating-point background Ganesh 9:30 - 10:00am FPChecker: floating-point exceptions, GPUs, CUDA Ignacio 10:00 - 10:15am Break or Q&A 10:15 - 10:45am ARCHER: data races, OpenMP Ian 10:45 - 11:30am FLiT: floating-point variability, compiler optimizations Ian 11:30 - 12:00pm ReMPI: MPI, floating-point variability Ignacio, Ian 12:00 - 12:15pm Q&A