Coded distributed computing with partial recovery
File(s)OUG_IT21.pdf (337.31 KB)
Accepted version
Author(s)
Ozfatura, Emre
Ulukus, Sennur
Gunduz, Deniz
Type
Journal Article
Abstract
Coded computation techniques provide robustness against straggling workers in distributed computing. However, most of the existing schemes require exact provisioning of the straggling behavior and ignore the computations carried out by straggling workers. Moreover, these schemes are typically designed to recover the desired computation results accurately, while in many machine learning and iterative optimization algorithms, faster approximate solutions are known to result in an improvement in the overall convergence time. In this paper, we first introduce a novel coded matrix-vector multiplication scheme, called coded computation with partial recovery (CCPR), which benefits from the advantages of both coded and uncoded computation schemes, and reduces both the computation time and the decoding complexity by allowing a trade-off between the accuracy and the speed of computation. We then extend this approach to distributed implementation of more general computation tasks by proposing a coded communication scheme with partial recovery, where the results of subtasks computed by the workers are coded before being communicated. Numerical simulations on a large linear regression task confirm the benefits of the proposed scheme in terms of the trade-off between the computation accuracy and latency.
Date Issued
2021-12-07
Date Acceptance
2021-11-10
Citation
IEEE Transactions on Information Theory, 2021, 68 (3), pp.1945-1959
ISSN
0018-9448
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Start Page
1945
End Page
1959
Journal / Book Title
IEEE Transactions on Information Theory
Volume
68
Issue
3
Copyright Statement
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor
Commission of the European Communities
Commission of the European Communities
Engineering & Physical Science Research Council (EPSRC)
Identifier
https://ieeexplore.ieee.org/document/9641837
Grant Number
677854
675891
EP/T023600/1
Subjects
Science & Technology
Technology
Computer Science, Information Systems
Engineering, Electrical & Electronic
Computer Science
Engineering
Task analysis
Codes
Encoding
Delays
Decoding
Redundancy
Optimization
Coded computation
distributed computation
maximum distance separable~(MDS) code
linear codes
rateless codes
stragglers
Networking & Telecommunications
0801 Artificial Intelligence and Image Processing
0906 Electrical and Electronic Engineering
1005 Communications Technologies
Publication Status
Published
Date Publish Online
2021-12-07