4 citations · 6 across the 11 of their papers we have counts for
9 papers · 1 filter
WOC: Dual-Path Weighted Object Consensus Made Efficient
Tanisha Fonseca, Gengrui Zhang
Modern distributed systems face a critical challenge: existing consensus protocols optimize for either node heterogeneity or workload independence, but not both. For example, Cabin…
GPoS: Geospatially-aware Proof of Stake
Shashank Motepalli, Naman Garg, Gengrui Zhang +1
Geospatial decentralization is essential for blockchains, ensuring regulatory resilience, robustness, and fairness. We empirically analyze five major Proof of Stake (PoS) blockchai…
Kant: An Efficient Unified Scheduling System for Large-Scale AI Clusters
Lingling Zeng, Gen Zhang, Jialin Peng +3
As AI cluster sizes continue to expand and the demand for large-language-model (LLM) training and inference workloads grows rapidly, traditional scheduling systems face significant…
Cabinet: Dynamically Weighted Consensus Made Fast
Gengrui Zhang, Shiquan Zhang, Michail Bachras +2
Conventional consensus algorithms, such as Paxos and Raft, encounter inefficiencies when applied to large-scale distributed systems due to the requirement of waiting for replies fr…
Lifting the Fog of Uncertainties: Dynamic Resource Orchestration for the Containerized Cloud
Yuqiu Zhang, Tongkun Zhang, Gengrui Zhang +1
The advances in virtualization technologies have sparked a growing transition from virtual machine (VM)-based to container-based infrastructure for cloud computing. From the resour…
PrestigeBFT: Revolutionizing View Changes in BFT Consensus Algorithms with Reputation Mechanisms
Gengrui Zhang, Fei Pan, Sofia Tijanic +1
This paper proposes PrestigeBFT, a novel leader-based BFT consensus algorithm that addresses the weaknesses of passive view-change protocols. Passive protocols blindly rotate leade…
V-Guard: An Efficient Permissioned Blockchain for Achieving Consensus under Dynamic Memberships in V2X
Gengrui Zhang, Yunhao Mao, Shiquan Zhang +3
This paper presents V-Guard, a new permissioned blockchain that achieves consensus for vehicular data under changing memberships, targeting the problem in V2X networks where vehicl…
Reaching Consensus in the Byzantine Empire: A Comprehensive Review of BFT Consensus Algorithms
Gengrui Zhang, Fei Pan, Yunhao Mao +5
Byzantine fault-tolerant (BFT) consensus algorithms are at the core of providing safety and liveness guarantees for distributed systems that must operate in the presence of arbitra…
ESCAPE to Precaution against Leader Failures
Gengrui Zhang, Hans-Arno Jacobsen
Leader-based consensus protocols must undergo a view-change phase to elect a new leader when the current leader fails. The new leader is often decided upon a candidate server that…