Time-Critical Scheduling on a Well Utilised HPC System at ECMWF Using Loadleveler with Resource Reservation

Autor:	Graham Holt
Rok vydání:	2005
Předmět:	Job scheduler Portable Batch System Computer science Computer cluster Operating system Batch processing Reservation Resource allocation Workload computer.software_genre Batch production computer Scheduling (computing)
Zdroj:	Job Scheduling Strategies for Parallel Processing ISBN: 9783540253303 JSSPP
Popis:	This article is written in the context of running a suite of time-critical operational numerical weather prediction batch jobs, along with a substantial number of research batch jobs on a large IBM Cluster 1600 system. The batch subsystem used is IBM's LoadLeveler incorporating a little known feature called Resource Reservation. The article describes how the mixture of operational and research parallel batch jobs are scheduled to run on the 117 nodes provided, and how Resource Reservation for operational jobs is performed without reference to job class. Where research parallel batch jobs are jobs requesting more than 1 CPU and must run consistently to ensure resources are released predictably. Note – information is given explaining how consistent runtimes are achieved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6db6b53a110f17244f8e9875f564e89d https://doi.org/10.1007/11407522_6 Zobrazit plný text záznamu