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Analysis of I/O requirements of scientific applications / Salem El Sayed Mohamed. Jülich : Forschungszentrum Jülich GmbH, Zentralbibliothek, Verlag, [2018] ; © 2018
Inhalt
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Abstract
Acknowledgements
List of Figures
List of Tables
Abbreviations
1 Introduction
1.1 Motivation
1.2 Research Goals
1.3 HPC I/O Architecture
1.3.1 Emerging I/O Architectures
2 I/O System Architecture
2.1 JUGENE I/O Stack
2.2 Storage Infrastructure
2.2.1 GPFS I/O Counters
3 Methodology: I/O Criteria
3.1 Related Work
3.2 Basic Quantities
3.2.1 Application Quantities
3.2.2 I/O Request Quantities
3.2.3 Filesystem Metadata Operation Quantities
3.3 Category 1: Aggregate Performance Numbers
3.4 Category 2: I/O Pattern Analysis
3.4.1 Request Size
3.4.2 Type Of I/O Operation
3.4.3 Spatiality Of I/O Requests
3.4.4 Temporal Intervals
3.4.5 Repetitive Behaviour
3.5 Category 3: Parallel I/O
3.6 Summarizing I/O Criteria
4 Performance Characterization: Analysing GPFS I/O Counters
4.1 Related Work And I/O Profiling Tools
4.1.1 I/O Measuring Tools
4.1.2 Analysis Process
4.1.3 Using Analysis Information
4.2 Reformatting GPFS I/O Counters
4.2.1 GPFS I/O Log Database
4.3 Job Database
4.4 Verifying Analysis Process
4.4.1 Verification Of GPFS I/O Counters Using I/O Benchmark
4.5 Evaluating JUGENE Job I/O
4.5.1 Filtering The Job List
4.5.2 Revisiting I/O Criteria
4.5.3 Category 1: Aggregate Performance Numbers
4.5.4 Category 2: I/O Pattern Analysis
4.5.5 Category 3: Parallel I/O
4.5.6 Further Analysing A Subset Of Jobs
4.5.7 Analysing Jobs Using Category 1: Aggregate Performance Numbers
4.5.8 Analysing Jobs Using Category 2: I/O Pattern Analysis
4.5.9 Analysing Jobs Using Category 3: Parallel I/O
4.6 General Notes on Analysing the GPFS I/O Counters
5 Performance Modeling: Modeling JUGENE I/O
5.1 Related Work
5.2 Modeling Framework (OMNET++)
5.3 Modelling JUGENE I/O
5.3.1 I/O Model Components
5.4 I/O Model Verification
5.4.1 Parameter Fitting Using GPFS I/O Logs
5.5 Future I/O Architectures
5.5.1 I/O Model Changes
5.5.2 Burst Buffers
5.6 Conclusions On Modelling System I/O
6 Conclusion
6.1 Future Work
A I/O Criteria - Category 4: Application Details
B I/O Model Parameter Fitting Using An I/O Benchmark
Bibliography
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