Presentation
A Novel Multi-Level integrated Roofline Model Approach for Performance Characterization
Event Type
Research Paper
Parallel Applications
Performance Analysis and Optimization
Performance Tools
TimeWednesday, June 27th12pm - 12:30pm
LocationSubstanz 1, 2
DescriptionWith energy-efficient architectures, including accelerators and many-core processors, gaining traction, application developers face the challenge of optimizing their applications for multiple hardware features including many-core parallelism, wide processing vector-units and on-chip high-bandwidth memory. In this paper, we discuss the development and utilization of a new application performance tool based on an extension of the classical roofline-model for simultaneously profiling multiple levels in the cache-memory hierarchy. This tool presents a powerful visual aid for the developer and can be used to frame the many-dimensional optimization problem in a tractable way. We show case studies of real scientific applications that have gained insights from the integrated roofline tool.
Authors
Application Performance Group Leader
Staff Scientist
Postdoctoral Fellow
Computer Scientist
HPC Consultant
Principal Engineer
Software Engineer
Staff Scientist
Computer Senior Scientist