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Xinhao Kong

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Phantora: Maximizing Code Reuse in Simulation-based Machine Learning...NSDI '262026-05-04
Phantora runs unmodified ML frameworks inside containerized rank emulators and intercepts CUDA/NCCL calls to forward computation and communication events to a…
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Understanding RDMA Microarchitecture Resources for Performance IsolationNSDI 20232023-04-17
Presents a model tying RDMA verbs to RNIC internal resources using hardware counters, then builds the Husky test suite that creates verb pairs to target…
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Remote Procedure Call as a Managed System ServiceNSDI 20232023-04-17
mRPC implements RPC as a managed system service rather than a linked library, with a shim using shared-memory queues, a schema generator that produces…
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Collie: Finding Performance Anomalies in RDMA Subsystems19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)2022-04-04
Collie systematically searches RDMA workload space using simulated annealing guided by hardware performance and diagnostic counters to drive tests toward…
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