From:"Open" <>
To:"" <>
Subject: 64-bit Linux on NUMA
Date: Fri, 3 Jun 2005 20:08:26 -0400
Hello MIKE 

Open Magazine - Your strategic guide to Open Source 

When it comes to high power computing, Linux has a big advantage, 
especially when it comes to 64-bit options. This week starts the first in a 
series of reviews on how to break the 32-bit barrier.

The introduction of the Linux 2.6 kernel and operating systems like 
SLES9 have given Linux users a robust alternative to SMP: NUMA, the 
architecture of choice for AMD64.. The differences are neither transparent 
nor trivial. This week openBench Labs tests a quad-Opteron system with a 
traditional IA-32 dual-processor SMP system. In the process, we 
discover there are still a few nasty issues powering up to 64 bits.  

In future issues we'll continue with EM64T Xeon- and Itanium- based 

Linux is also at the forefront of an other form of power. At the DOE, 
researchers are unraveling the molecular forces that could one day bring 
the world a clean source of renewable energy: A mandate that requires a 
significant amount of computing power. Learn how Linux is providing 
researchers with the scalability they need at a cost they can afford.

For this week's stories, click on

 The editors of Open magazine