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Modern out-of-order processors have increased capacity to exploit instruction level parallelism (ILP) and memory level parallelism (MLP), e.g., by using wide superscalar pipelines and vector execution units, as well as deep buffers for…

Programming Languages · Computer Science 2018-07-05 Vladimir Kiriansky , Haoran Xu , Martin Rinard , Saman Amarasinghe

We examine natural expectations on communication performance using MPI derived datatypes in comparison to the baseline, "raw" performance of communicating simple, non-contiguous data layouts. We show that common MPI libraries sometimes…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-07-04 Alexandra Carpen-Amarie , Sascha Hunold , Jesper Larsson Träff

Heterogeneous memory technologies are increasingly important instruments in addressing the memory wall in HPC systems. While most are deployed in single node setups, CXL.mem is a technology that implements memories that can be attached to…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-10 Stepan Vanecek , Matthew Turner , Manisha Gajbe , Matthew Wolf , Martin Schulz

Astronomers are increasingly using Massively Parallel Network of Workstations (MP-NOW) to address their most challenging computing problems. Fully exploiting these systems is made more difficult as more and more modeling and data analysis…

Astrophysics · Physics 2015-05-26 Jeremy Kepner , Maya Gokhale , Ron Minnich , Aaron Marks , John DeGood

The Partially Ordered Workflow Language (POWL) has recently emerged as a process modeling notation, offering strong quality guarantees and high expressiveness. However, its adoption is hindered by the prevalence of standard notations like…

Logic in Computer Science · Computer Science 2025-09-22 Humam Kourani , Gyunam Park , Wil van der Aalst

Nowadays, the paradigm of parallel computing is changing. CUDA is now a popular programming model for general purpose computations on GPUs and a great number of applications were ported to CUDA obtaining speedups of orders of magnitude…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-02-09 Bogdan Oancea , Tudorel Andrei

High Performance Computing is notorious for its long and expensive software development cycle. To address this challenge, we present Bind: a "partitioned global workflow" parallel programming model for C++ applications that enables quick…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-06-16 Alex Kosenkov , Matthias Troyer

With the rapid development of IT operations, it has become increasingly crucial to efficiently manage and analyze large volumes of data for practical applications. The techniques of Natural Language Processing (NLP) have shown remarkable…

Recent studies have revealed that when LLMs are appropriately prompted and configured, they demonstrate mixed results. Such results often meet or exceed the baseline performance. However, these comparisons have two primary issues. First,…

Software Engineering · Computer Science 2026-02-12 Rasmus Krebs , Somnath Mazumdar

Large Language Models (LLMs) have resulted in a surging demand for planet-scale serving systems, where tens of thousands of GPUs continuously serve hundreds of millions of users. Consequently, throughput has emerged as a key metric that…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-27 Kan Zhu , Yufei Gao , Yilong Zhao , Liangyu Zhao , Gefei Zuo , Yile Gu , Dedong Xie , Tian Tang , Qinyu Xu , Zihao Ye , Keisuke Kamahori , Chien-Yu Lin , Ziren Wang , Stephanie Wang , Arvind Krishnamurthy , Baris Kasikci

Nowadays, many scientific workflows from different domains, such as Remote Sensing, Astronomy, and Bioinformatics, are executed on large computing infrastructures managed by resource managers. Scientific workflow management systems (SWMS)…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-11-28 Fabian Lehmann , Jonathan Bader , Lauritz Thamsen , Ulf Leser

Upcoming HPC clusters will feature hybrid memories and storage devices per compute node. In this work, we propose to use the MPI one-sided communication model and MPI windows as unique interface for programming memory and storage. We…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-10-10 Sergio Rivas-Gomez , Roberto Gioiosa , Ivy Bo Peng , Gokcen Kestor , Sai Narasimhamurthy , Erwin Laure , Stefano Markidis

Continuous Integration and Continuous Deployment (CI/CD) pipeline automates software development to speed up and enhance the efficiency of engineering software. These workflows consist of various jobs, such as code validation and testing,…

Software Engineering · Computer Science 2025-04-17 Simin Sun , David Friberg , Miroslaw Staron

Faults in high-performance systems are expected to be very large in the current exascale computing era. To compensate for a higher failure rate, the standard checkpoint/restart technique would need to create checkpoints at a much higher…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-15 Sarthak Joshi , Sathish Vadhiyar

Human beings have an inherent capability to use linguistic information (LI) seamlessly even though it is vague and imprecise. Computing with Words (CWW) was proposed to impart computing systems with this capability of human beings. The…

Artificial Intelligence · Computer Science 2022-08-16 Prashant K. Gupta , Javier Andreu-Perez

Large language models (LLMs) are widely used for natural language understanding and text generation. An LLM model relies on a time-consuming step called LLM decoding to generate output tokens. Several prior works focus on improving the…

Hardware Architecture · Computer Science 2025-02-28 Yintao He , Haiyu Mao , Christina Giannoula , Mohammad Sadrosadati , Juan Gómez-Luna , Huawei Li , Xiaowei Li , Ying Wang , Onur Mutlu

The workflow concept, proliferated through the recently emergent computer supported cooperative work (CSCW) systems and workflow systems, advances information systems (IS) implementation models by incorporating aspects of collaboration and…

Computers and Society · Computer Science 2021-06-01 Alistair P. Barros , Arthur H. M. ter Hofstede , Henderik A. Proper

Programming embedded systems applications involve writing concurrent, event-driven and timing-aware programs. Traditionally, such programs are written in low-level machine-oriented programming languages like C or Assembly. We present an…

Programming Languages · Computer Science 2024-01-17 Abhiroop Sarkar , Bo Joel Svensson , Mary Sheeran

Dataset storage, exchange, and access play a critical role in scientific applications. For such purposes netCDF serves as a portable and efficient file format and programming interface, which is popular in numerous scientific application…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-05-23 Jianwei Li , Wei-keng Liao , Alok Choudhary , Robert Ross , Rajeev Thakur , William Gropp , Rob Latham

C is the lingua franca of programming and almost any device can be programmed using C. However, programming mod-ern heterogeneous architectures such as multi-core CPUs and GPUs requires explicitly expressing parallelism as well as…