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09/13/2023
MPI Advance : Open-Source Message Passing Optimizations
The large variety of production implementations of the message passing i...
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08/26/2023
A Locality-Aware Sparse Dynamic Data Exchange
Parallel architectures are continually increasing in performance and sca...
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06/28/2023
Collective-Optimized FFTs
This paper measures the impact of the various alltoallv methods. Results...
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06/02/2023
Optimizing Irregular Communication with Neighborhood Collectives and Locality-Aware Parallelism
Irregular communication often limits both the performance and scalabilit...
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09/13/2022
Characterizing the Performance of Node-Aware Strategies for Irregular Point-to-Point Communication on Heterogeneous Architectures
Supercomputer architectures are trending toward higher computational thr...
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06/07/2022
A Locality-Aware Bruck Allgather
Collective algorithms are an essential part of MPI, allowing application...
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03/11/2022
Performance Analysis and Optimal Node-Aware Communication for Enlarged Conjugate Gradient Methods
Krylov methods are a key way of solving large sparse linear systems of e...
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10/20/2020
Modeling Data Movement Performance on Heterogeneous Architectures
The cost of data movement on parallel systems varies greatly with machin...
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10/21/2019
Node-Aware Improvements to Allreduce
The MPI_Allreduce collective operation is a core kernel of many parallel...
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04/11/2019
Reducing Communication in Algebraic Multigrid with Multi-step Node Aware Communication
Algebraic multigrid (AMG) is often viewed as a scalable 𝒪(n) solver for ...
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06/06/2018
Improving Performance Models for Irregular Point-to-Point Communication
Parallel applications are often unable to take full advantage of emergin...
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12/23/2016