Direct exploitation of a top 500 Supercomputer for Analysis of CMS Data

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Cabrillo, I.^1 ; Cabellos, L.^1 ; Marco, J.^1 ; Fernandez, J.^2 ; Gonzalez, I.^2

Instituto de Fisica de Cantabria (IFCA), Avda. de los Castros s/n, Santander, Spain^1

Dep. Physics, University of Oviedo (UNIOVI), Calvo Sotelo s/n, Oviedo, Spain^2

关键词: InfiniBand networks;    Magnitude reduction;    Multiple data;    Parallel file system;    Parallel jobs;    Waiting-time;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/3/032014/pdf
DOI  :  10.1088/1742-6596/513/3/032014

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The Altamira Supercomputer hosted at the Instituto de Fisica de Cantatbria (IFCA) entered in operation in summer 2012. Its last generation FDR Infiniband network used (for message passing) in parallel jobs, supports the connection to General Parallel File System (GPFS) servers, enabling an efficient simultaneous processing of multiple data demanding jobs. Sharing a common GPFS system and a single LDAP-based identification with the existing Grid clusters at IFCA allows CMS researchers to exploit the large instantaneous capacity of this supercomputer to execute analysis jobs. The detailed experience describing this opportunistic use for skimming and final analysis of CMS 2012 data for a specific physics channel, resulting in an order of magnitude reduction of the waiting time, is presented.