PPT-Task Scheduling

By Dr Amin Danial Asham References Realtime Systems Theory and Practice By Rajib mall Task Scheduling RealTime task scheduling essentially refers to determining the order in which the various tasks are to be taken up for execution by the operating system Every operating system relies on one or more task schedulers to prepare the schedule of execution of various tasks it needs to run Each task scheduler is characterized by the scheduling algorithm it employs A large number of algorithms for scheduling realTime tasks have so far been developed RealTime task scheduling on uniprocessors is a mature discipline now with most of the important results having been worked out in the early 1970s The research results available at present in the literature are very extensive and it would indeed be grueling to study them exhaustively In this text we therefore classify the available scheduling algorithms into a few broad classes and study the characteristics of a few important ones in each class . . Mutli-core. . Scheduling. Moris Behnam. Introduction. Single processor scheduling. E.g., t. 1. (P=10,C=5), t. 2. (10, 6) . U=0.5+0.6>1. Use a faster processor. Thermal and power problems impose limits . Main-Memory Workloads. Iraklis. . Psaroudakis. (EPFL). , Tobias Scheuer (SAP AG), Norman May (SAP AG), Anastasia Ailamaki (EPFL). 1. Scheduling for high concurrency. 2. Queries >> H/W contexts. Reference:. Mesos. : A Platform for Fine-Grained Resource Sharing in the Data Center NSDI’2011. Multi-agent Cluster Scheduling for Scalability and. Flexibility. . Berkerly. . techdoc. EECS-2012-273. (doctoral dissertation). Distributed. , Low Latency Scheduling. 72130310 . 임규찬. Abstract. Introduction. Design Goals. Sample-Based Scheduling for Parallel . Jobs. Implements. 목차. Large-scale data analytics frameworks are shifting. Smart . Power . Grid. : Scheduling . of Power . Demands for . Optimal Energy Management. Authors:. Iordanis Koutsopoulos . Leandros Tassiulas. Presentation by:. Sanjana. . Hangal. Introduction. Consider a . Analysis for Weakly Hard Real-. Time Tasks in Partitioning Scheduling on. Multiprocessor . Systems. Energy Reduction in Weakly Hard Real . Time Systems. Singh Y, . Popli. M, Shukla . Jaypee. . University of Information Technology. Geo-distributed Datacenters. Chien. -Chun Hung, . Leana. . Golubchik. , . Minlan. Yu. Department of Computer Science. University of Southern California. Geo-distributed Jobs. Large-scale data-parallel jobs. By. Dr. Amin Danial Asham. References. Real-time Systems Theory and Practice. . By . Rajib. mall. Task Scheduling. Real-Time task scheduling essentially refers to determining the order in which the various tasks are to be taken up for execution by the operating system. Every operating system relies on one or more task schedulers to prepare the schedule of execution of various tasks it needs to run. Each task scheduler is characterized by the scheduling algorithm it employs. A large number of algorithms for scheduling real-Time tasks have so far been developed. Real-Time task scheduling on uniprocessors is a mature discipline now with most of the important results having been worked out in the early 1970's. The research results available at present in the literature are very extensive and it would indeed be grueling to study them exhaustively. In this text, we therefore classify the available scheduling algorithms into a few broad classes and study the characteristics of a few important ones in each class. . By:. Atena. . Daneshmandi. Outline. Introduction. Typology of Parallel . Tasks. Task . Graphs. A Deterministic module . A Deterministic module by Gantt . Chart. C# Example(Three Tasks in Parallel). Complexity . Select process to . run next . Must handle…. Priorities . Forking . – where does child go? . What . about if you only use part of your quantum? . E.g. ., blocking I/O. Linux 2.4. Linux scheduler had a single list of tasks. Or multiple packets to send, or web requests to serve, or …. Definitions. response time, throughput, predictability. Uniprocessor. policies. FIFO, round robin, optimal. multilevel feedback as approximation of optimal. * istributed E nergy-E fficient cheduler (or DEES for short) that aims to seamlessly integrate the process of scheduling tasks with data placement strategies to provide energy savings. DEES is distr istributed Energy-Efficient cheduler or DEES for short that aims to seamlessly integrate the process of scheduling tasks with data placement strategies to provide energy savings DEES is distributed in , 2017. Critical properties of Apollo. Distributed and coordinated scheduling framework. Assign tasks to server with minimal estimated completion time. Provide near-future states of servers. Correction mechanism.