Efficient and proven verification of unreliable hardware executions of classic algorithms
Name
932129616-MIT.pdf
Description
Full printable version
Size
413.75 KB
Format
Adobe PDF
Checksum (MD5)
0ba33361e7bcf62e889b1511e02c0517
Author(s)
Gyurova, Yoana G
Advisor(s)
Saman Amarasinghe.
Date Issued
2015
Publisher
Massachusetts Institute of Technology
Abstract
Lowering voltage and frequency guardbands of CPU, DRAM, cache, or interconnect lowers power and latency, but increases the risk of silent data corruptions in even formally verified hardware and software. Researchers have been developing systems that use unreliable hardware, combined with software checkers executed on reliable hardware, to gain high performance with no risk. Deterministic checkers for many important algorithms are asymptotically and practically more efficient than the original problem solvers, e.g. for systems of linear equations, satisfiability, linear programming, sorting, 3SUM, graph matching and others. Writing a correct checker is hard, since often intricate corner cases get overlooked. Our system, SOUNDCHECK, helps reduce burden on programmers by automatically proving soundness and completeness of checkers with bounded verification in the Sketch program synthesis language. Verified checkers are emitted as efficient C++ code and shown to have low overhead which results in a net performance improvement with no risk.
Description
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 59-61).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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