2018/01/12 by Nikolay A. Simakov, Martins D. Innus, Martins Innus +12 · 2 voices
Computer Science · #Advanced Data Storage Technologies #Cloud Computing and Resource Management #Distributed and Parallel Computing Systems #FOS: Computer and information sciences #Parallel Computing and Optimization Techniques #Performance (cs.PF) #cs.PF
paper · pdf · doi:10.48550/arxiv.1801.04329
openalex publication_date 2018/01/12 · arxiv published 2018/01/12 · arxiv created 2018/01/16 · arxiv updated 2018/01/18 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
In this work we examine how the updates addressing Meltdown and Spectre vulnerabilities impact the performance of HPC applications. To study this we use the application kernel module of XDMoD to test the performance before and after the application of the vulnerability patches. We tested the performance difference for multiple application and benchmarks including: NWChem, NAMD, HPCC, IOR, MDTest and IMB. The results show that although some specific functions can have performance decreased by as much as 74%, the majority of individual metrics indicates little to no decrease in performance. The real-world applications show a 2-3% decrease in performance for single node jobs and a 5-11% decrease for parallel multi node jobs.