1 / 8

Clustered Computing

Robert Tompkins. Clustered Computing. Topics discussed . Define parallel computing Paradigms and purposes High availability PVM/MPI Mosix Beowulf 2 NFS Lustre. Paradigms and purposes. Clustered computing serves different purpose, and uses different software to accomplish that goal

elle
Download Presentation

Clustered Computing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Robert Tompkins Clustered Computing

  2. Topics discussed • Define parallel computing • Paradigms and purposes • High availability • PVM/MPI • Mosix • Beowulf 2 • NFS • Lustre

  3. Paradigms and purposes • Clustered computing serves different purpose, and uses different software to accomplish that goal • High availability for systems that need to be up 99.99% of the time • High performance for scientific computing • High demand/workload for webservers and databases

  4. High availability Redhat and heartbeats • Sometimes it is important to have a machine running 99.99% of the time • Redhat and other HA distributions allow you to have two or more machines doing the exact same transactions • When one system goes down, the backup system detects it and automatically takes over its ip address and transactions continue

  5. PVM/MPI • Parallel Virtual Machine shares the memory and cpu across all of the nodes • MPI starts a process on each of the nodes that can communicate with all of other other nodes, similar multithreaded programming

  6. Mosix • Mosix allows you to migrate a process from one machine to another • The entire memory space is moved from one machine to another • Processes can migrate to machines that are least used

  7. Beowulf 2 • Beowulf 2 is a reimplementation of Beowulf with Lightweight kernels • This allows more of the processor to be used • Also decrease the management requirements and required resources • The machine only needs memory and a cpu

  8. NFS/LUSTRE • All clusters need a shared file system • Originally most used NFS or AFS to mount the home directories • PVFS was an attempt to distribute writes across the nodes, the same as raid 0 and raid 1 • Lustre is a commercial/freeware filesystem that does raid 0,1,5 and drastically increases the write and read speeds

More Related