Linked by Robert Minvielle on Tue 16th Dec 2003 20:00 UTC
This is the second installment of the "Linux on the Opteron, are we ready?" article. Basically, it is a "where are we now?" article, noting that what once did work now does not, and others that did not work now do. The first article was published on OSNews almost three months ago. Since that time not too much has happened publicly in regards to the amd64 Linux situation, but a lot of people mailed to tell me that I should have checked out SuSE or the new Mandrake which was "about to be released" at that time. Also since that time I have upgraded the RAM and acquired a larger hard disk for the machine. I will give a brief rundown of the system as it stands now, what I tried to install on it, and what works.
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We have a 150-node dual CPU Opteron cluster soon be processing data.
Although some of our applications are restricted to 32-bits because 64-bit builds of some 3rd party libraries are not available yet, we still gain a handsome 35% speed up when running our 32-bit apps on a 64-bit OS, like SuSE's 64-bit Linux OS.
Preliminary tests show that we gain another 35% when our apps are 64-bit; for a total speed up of ~70% over pure 32-bit.