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We study the problem of scheduling an arbitrary computational DAG on a fixed number of processors while minimizing the makespan. While previous works have mostly studied this problem in fairly restricted models, we define and analyze DAG…

Computational Complexity · Computer Science 2024-07-18 Pál András Papp , Georg Anegg , A. N. Yzelman

As multicore hardware is becoming increasingly common in real-time systems, traditional scheduling techniques that assume a single worst-case execution time for a task are no longer adequate, since they ignore the impact of shared resources…

Operating Systems · Computer Science 2025-01-16 Robert Gifford , Abby Eisenklam , Georgiy A. Bondar , Yifan Cai , Tushar Sial , Linh Thi Xuan Phan , Abhishek Halder

In Autonomous Driving Systems (ADS), Directed Acyclic Graphs (DAGs) are widely used to model complex data dependencies and inter-task communication. However, existing DAG scheduling approaches oversimplify data fusion tasks by assuming…

Systems and Control · Electrical Eng. & Systems 2025-10-29 Hoora Sobhani , Hyoseung Kim

We study the problem of efficiently scheduling a computational DAG on multiple processors. The majority of previous works have developed and compared algorithms for this problem in relatively simple models; in contrast to this, we analyze…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-04-24 Pál András Papp , Georg Anegg , Aikaterini Karanasiou , A. N. Yzelman

Many HPC applications can be expressed as mixed-mode computations, in which each node of a computational DAG is itself a parallel computation that can be molded at runtime to allocate different amounts of processing resources. At the same…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-07-10 Agnes Rohlin , Henrik Fahlgren , Miquel Pericas

Heterogeneous multi-cores utilize the strength of different architectures for executing particular types of workload, and usually offer higher performance and energy efficiency. In this paper, we study the worst-case response time (WCRT)…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-09-21 Meiling Han , Nan Guan , Jinghao Sun , Qingqiang He , Qingxu Deng , Weichen Liu

This paper studies end-to-end latency minimization for a multi-band radar sensing and deep neural network (DNN) inference pipeline. Unlike conventional stage-wise designs that treat radar sensing and DNN inference as two sequential stages,…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Yanan Du , Sai Xu , Kezhi Wang , Yansha Deng

In real-time systems, schedulability tests are utilized to provide timing guarantees. However, for self-suspending task sets, current suspension-aware schedulability tests are limited to Task-Level Fixed-Priority~(TFP) scheduling or…

Operating Systems · Computer Science 2021-11-19 Mario Günzel , Kuan-Hsun Chen , Jian-Jia Chen

In the recent years it can be observed increasing popularity of parallel processing using multi-core processors, local clusters, GPU and others. Moreover, currently one of the main requirements the IT users is the reduction of maintaining…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-04-05 Łukasz P. Olech , Jan Kwiatkowski

This paper presents new fast exact feasibility tests for uniprocessor real-time systems using preemptive EDF scheduling. Task sets which are accepted by previously described sufficient tests will be evaluated in nearly the same time as with…

Other Computer Science · Computer Science 2011-11-09 Karsten Albers , Frank Slomka

One typical use case of large-scale distributed computing in data centers is to decompose a computation job into many independent tasks and run them in parallel on different machines, sometimes known as the "embarrassingly parallel"…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-04-07 Da Wang , Gauri Joshi , Gregory Wornell

GPUs are readily available in cloud computing and personal devices, but their use for data processing acceleration has been slowed down by their limited integration with common programming languages such as Python or Java. Moreover, using…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-01-20 Alberto Parravicini , Arnaud Delamare , Marco Arnaboldi , Marco D. Santambrogio

It remains a challenging problem to tightly estimate the worst case response time of an application in a distributed embedded system, especially when there are dependencies between tasks. We discovered that the state-of-the art techniques…

Performance · Computer Science 2016-04-19 Junchul Choi , Hyunok Oh , Soonhoi Ha

Hard real-time systems like image processing, autonomous driving, etc. require an increasing need of computational power that classical multi-core platforms can not provide, to fulfill with their timing constraints. Heterogeneous…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-09-01 Houssam-Eddine Zahaf , Nicola Capodieci

In the federated scheduling approaches in multiprocessor systems, a task either 1) is restricted to execute sequentially on a single processor or 2) has exclusive access to the assigned processors. There have been several positive results…

Data Structures and Algorithms · Computer Science 2016-06-23 Jian-Jia Chen

We study the problem of scheduling a general computational DAG on multiple processors in a 2-level memory hierarchy. This setting is a natural generalization of several prominent models in the literature, and it simultaneously captures…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-24 Pál András Papp , Toni Böhnlein , A. N. Yzelman

We study the problem of executing an application represented by a precedence task graph on a parallel machine composed of standard computing cores and accelerators. Contrary to most existing approaches, we distinguish the allocation and the…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-11-20 Marcos Amaris , Giorgio Lucarelli , Clément Mommessin , Denis Trystram

This paper studies the response time bound of a DAG (directed acyclic graph) task. Recently, the idea of using multiple paths to bound the response time of a DAG task, instead of using a single longest path in previous results, was proposed…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-15 Qingqiang He , Nan Guan , Shuai Zhao , Mingsong Lv

In this paper we study the scheduling of parallel and real-time recurrent tasks. Firstly, we propose a new parallel task model which allows recurrent tasks to be composed of several threads, each thread requires a single processor for…

Operating Systems · Computer Science 2015-03-19 Irina Iulia Lupu , Joël Goossens

Vehicular cloud (VC) platforms integrate heterogeneous and distributed resources of moving vehicles to offer timely and cost-effective computing services. However, the dynamic nature of VCs (i.e., limited contact duration among vehicles),…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-08-29 Zhang Liu , Minghui Liwang , Seyyedali Hosseinalipour , Huaiyu Dai , Zhibin Gao , Lianfen Huang