2026-09-20T00:00:21Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/108060 2023-07-11 col_2142_5131 col_2142_10761 com_2142_5130 com_2142_10755 com_2142_234

Kale, Laxmikant Narayanan, Venkatasubrahmanian 2020-08-26T21:58:08Z 2020-08-26T21:58:08Z 2020-05-15 2020-05 The divergence of application behavior from optimal network usage leads to performance bottlenecks induced by communication. Communication performances are known to worsen when dealing with large quantities of small messages, due to the overhead of envelopes and going through the communication stack multiple times. Prior work has attempted to mitigate this through the aggregration of small messages, but it has only studied the impact for cases where the size of the message is constant and known ahead of time. This thesis explores the applicability of this optimization to variable-sized messages and machines with a large number of cores, analyzing both the theoretical considerations involved and the performance gains achieved in practice. The work is implemented as an update to the Topological Routing and Aggregation Module(TRAM) of the Charm++ parallel programming system. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms The student, Venkatasubrahmanian Narayanan, accepted the attached license on 2020-05-14 at 22:33. The student, Venkatasubrahmanian Narayanan, submitted this Thesis for approval on 2020-05-14 at 22:49. This Thesis was approved for publication on 2020-05-15 at 10:16. DSpace SAF Submission Ingestion Package generated from Vireo submission #15387 on 2020-08-25 at 17:14:41 Made available in DSpace on 2020-08-26T21:58:08Z (GMT). No. of bitstreams: 2 NARAYANAN-THESIS-2020.pdf: 938096 bytes, checksum: 1b6f5740bf71ca5c923f3d6285485af4 (MD5) LICENSE.txt: 4226 bytes, checksum: 4abeba9da26a00de37aa91c276b7c2fe (MD5) Previous issue date: 2020-05-15 application/pdf http://hdl.handle.net/2142/108060 en Copyright 2020 Venkatasubrahmanian Narayanan Fine-grained parallelism message aggregation Generalizing fine-grained message aggregation text Thesis Computer Science Computer Science University of Illinois at Urbana-Champaign Thesis M.S.