RamCast

Le, Long Hoang; Eslahi-Kelorazi, Mojtaba; Coelho, Paulo; Pedone, Fernando

doi:10.1145/3464298.3493393

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Conference paper (in proceedings)

RamCast : RDMA-based atomic multicast

Le, Long Hoang Facoltà di scienze informatiche, Università della Svizzera italiana, Svizzera
Eslahi-Kelorazi, Mojtaba ORCID Facoltà di scienze informatiche, Università della Svizzera italiana, Svizzera
Coelho, Paulo ORCID Federal University of Uberlandia, Brazil
Pedone, Fernando ORCID Facoltà di scienze informatiche, Università della Svizzera italiana, Svizzera

2021

Published in:

Middleware '21: Proceedings of the 22nd International Middleware Conference. - 2021, p. 172–184

English Atomic multicast is a group communication abstraction useful in the design of highly available and scalable systems. It allows messages to be addressed to a subset of the processes in the system reliably and consistently. Many atomic multicast algorithms have been designed for the message-passing system model. The paper presents RamCast, the first atomic multicast protocol for the shared-memory system model. We design RamCast by leveraging Remote Direct Memory Access (RDMA) technology and by carefully combining techniques from message-passing and shared-memory systems. We show experimentally that RamCast outperforms current state-ofthe-art atomic multicast protocols, increasing throughput by up to 3.7× and reducing latency by up to 28×.

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