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Compound AI applications, which compose calls to ML models using a general-purpose programming language like Python, are widely used for a variety of user-facing tasks, from software engineering to enterprise automation, making their…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-19 Stephen Mell , David Mell , Konstantinos Kallas , Steve Zdancewic , Osbert Bastani

The rapid growth of large language models (LLMs) has made GPU communication a critical bottleneck. While prior work reduces communication volume via quantization or lossy compression, these approaches introduce numerical errors that can…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-23 Shuang Ma , Chon Lam Lao , Zhiying Xu , Zhuang Wang , Ziming Mao , Delong Meng , Jia Zhen , Jun Wu , Ion Stoica , Yida Wang , Yang Zhou

Pipelining between data loading and computation is a critical tensor program optimization for GPUs. In order to unleash the high performance of latest GPUs, we must perform a synergetic optimization of multi-stage pipelining across the…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-05-09 Guyue Huang , Yang Bai , Liu Liu , Yuke Wang , Bei Yu , Yufei Ding , Yuan Xie

We present a parallel implementation of a direct solver for the Poisson's equation on extreme-scale supercomputers with accelerators. We introduce a chunked-pencil decomposition as the domain-decomposition strategy to distribute work among…

Computational Physics · Physics 2020-07-15 Jaber J. Hasbestan , Inanc Senocak

Communication scheduling aims to reduce communication bottlenecks in data parallel training (DP) by maximizing the overlap between computation and communication. However, existing schemes fall short due to three main issues: (1) hard data…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-03-24 Lin Meng , Yuzhong Sun

In the realm of Large Language Model (LLM) inference, the inherent structure of transformer models coupled with the multi-GPU tensor parallelism strategy leads to a sequential execution of computation and communication. This results in…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-18 Bin Xiao , Lei Su

Modern computing platforms tend to deploy multiple GPUs (2, 4, or more) on a single node to boost system performance, with each GPU having a large capacity of global memory and streaming multiprocessors (SMs). GPUs are an expensive…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-07-20 Chao Chen , Chris Porter , Santosh Pande

Graphics Processing Units (GPUs) are a ubiquitous component across the range of today's computing platforms, from phones and tablets, through personal computers, to high-end server class platforms. With the increasing importance of graphics…

Cryptography and Security · Computer Science 2020-11-20 Sankha Baran Dutta , Hoda Naghibijouybari , Nael Abu-Ghazaleh , Andres Marquez , Kevin Barker

Recent research on vision backbone architectures has predominantly focused on optimizing efficiency for hardware platforms with high parallel processing capabilities. This category increasingly includes embedded systems such as mobile…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Moritz Nottebaum , Matteo Dunnhofer , Christian Micheloni

Communication and topology aware process mapping is a powerful approach to reduce communication time in parallel applications with known communication patterns on large, distributed memory systems. We address the problem as a quadratic…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-07-23 Christian Schulz , Jesper Larsson Träff , Konrad von Kirchbach

We introduce Diffuse, a system that dynamically performs task and kernel fusion in distributed, task-based runtime systems. The key component of Diffuse is an intermediate representation of distributed computation that enables the necessary…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-17 Rohan Yadav , Shiv Sundram , Wonchan Lee , Michael Garland , Michael Bauer , Alex Aiken , Fredrik Kjolstad

We evaluate optimized parallel sparse matrix-vector operations for several representative application areas on widespread multicore-based cluster configurations. First the single-socket baseline performance is analyzed and modeled with…

Distributed, Parallel, and Cluster Computing · Computer Science 2012-03-01 Gerald Schubert , Holger Fehske , Georg Hager , Gerhard Wellein

In distributed quantum computing architectures, with the network and communications functionalities provided by the Quantum Internet, remote quantum processing units (QPUs) can communicate and cooperate for executing computational tasks…

Quantum Physics · Physics 2021-06-22 Davide Ferrari , Angela Sara Cacciapuoti , Michele Amoretti , Marcello Caleffi

Compute nodes on modern heterogeneous supercomputing systems comprise CPUs, GPUs, and high-speed network interconnects (NICs). Parallelization is identified as a technique for effectively utilizing these systems to execute scalable…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-01 Naveen Namashivayam

Parallelization schemes are essential in order to exploit the full benefits of multi-core architectures. In said architectures, the most comprehensive parallelization API is OpenMP. However, the introduction of correct and optimal OpenMP…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-05-28 Idan Mosseri , Lee-or Alon , Re'em Harel , Gal Oren

Quantum computing offers unparalleled computational capabilities but faces significant challenges, including limited qubit counts, diverse hardware topologies, and dynamic noise and error rates, which hinder scalability and reliability.…

Quantum Physics · Physics 2025-09-15 Zefan Du , Pedro Chumpitaz Flores , Wenqi Wei , Juntao Chen , Kaixun Hua , Ying Mao

We propose SparsePipe, an efficient and asynchronous parallelism approach for handling 3D point clouds with multi-GPU training. SparsePipe is built to support 3D sparse data such as point clouds. It achieves this by adopting generalized…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Keke Zhai , Pan He , Tania Banerjee , Anand Rangarajan , Sanjay Ranka

In this paper, the problem of designing network codes that are both communicationally and computationally efficient over packet line networks with worst-case schedules is considered. In this context, random linear network codes (dense…

Information Theory · Computer Science 2015-03-19 Anoosheh Heidarzadeh , Amir H. Banihashemi

Distributed deep learning workloads include throughput-intensive training tasks on the GPU clusters, where the Distributed Stochastic Gradient Descent (SGD) incurs significant communication delays after backward propagation, forces workers…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-03-16 Cheng Luo , Lei Qu , Youshan Miao , Peng Cheng , Yongqiang Xiong

As AI chips incorporate numerous parallelized cores to scale deep learning (DL) computing, inter-core communication is enabled recently by employing high-bandwidth and low-latency interconnect links on the chip (e.g., Graphcore IPU). It…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-25 Yiqi Liu , Yuqi Xue , Yu Cheng , Lingxiao Ma , Ziming Miao , Jilong Xue , Jian Huang