Headlines | Linux | Apps | Coding | BSD | Admin | News
Information for Linux System Administration 

Introduction to NUMA (Non-Uniform Memory Access)


This is a primer on the NUMA hardware architecture...
In a typical SMP (Symmetric MultiProcessor architecture), all memory access are posted to the same shared memory bus. This works fine for a relatively small number of CPUs, but the problem with the shared bus appears when you have dozens, even hundreds, of CPUs competing for access to the shared memory bus. This leads to a major performance bottleneck due to the extremely high contention rate between the multiple CPU's onto the single memory bus.

The NUMA architecture was designed to surpass these scalability limits of the SMP architecture. NUMA computers offer the scalability of MPP(Massively Parallel Processing), in that processors can be added and removed at will without loss of efficiency, and the programming ease of SMP where.
 read more | mail this link | score:6997 | -Ray, March 31, 2004
More Sysadmin articles...

Abstract Art Prints for Sale

admin headlines

USB Redirection hack on Two Node Controller+Compute Neutron GRE+OVS Fedora 20 Cluster

Setup Dashboard and VNC console on Two Node Controller+Compute Neutron GRE+OVS+Gluster Fedora 20 Cluster

Gluster 3.4.2 on Two Node Controller+Compute Neutron GRE+OVS Fedora 20 Cluster

Running SilverStripe On Nginx (LEMP) On Debian Wheezy/Ubuntu 13.04

Quantum basic RDO setup (grizzly) to have original LAN as external on CentOS 6.4

Step By Step Ubuntu 13.04 (Raring Ringtail) LAMP Server Setup


Firefox sidebar

Site map

Site info

News feed


(to post)


Articles are owned by their authors.   © 2000-2012 Ray Yeargin