On 14 Oct 2004, at 11:05 pm, <Daniel.G.Roberts@aventis.com> wrote: > > > Anyone out there have a single linux cluster which as both 32bit and > 64 bit compute nodes within the same cluster. > Is this very common? > Not common. But we do it. We have a mixed architecture cluster which currently consists of Tru64 Alphas and 32-bit Linux boxes. We're about to add some 64-bit Linux boxes as well. I wouldn't necessarily recommend it unless you have a good reason, since obviously you're multiplying the number of software stacks you are maintaining. In our case, the Alphas are legacy, and the 64-bit Linux boxes are aimed at replacing them, and providing machines for large memory tasks (one of our new Itamium2 boxes has 192 GB of RAM) Tim -- Dr Tim Cutts Informatics Systems Group, Wellcome Trust Sanger Institute GPG: 1024D/E3134233 FE3D 6C73 BBD6 726A A3F5 860B 3CDD 3F56 E313 4233