Am 10.05.2006 um 23:43 schrieb Andrew D. Fant:

I know that the common wisdom on this subject is "don't do that", but for

Why? I have one cluster with a 32-bit head-node and 64-bit compute nodes, one cluster with the opposite bit-width (both due to historical/upgrading reasons) and also ones consisting only of one architecture. All is working fine.

Only point to mention is to take care with the location where you compile programs, so that the compilation can run in the cluster in the correct and intended way.

-- Reuti


various reasons, I have to look at the possibility of putting a 64- bit system (probably EMT as opposed to Opteron) as the user node of our cluster, I have a separate management node that handles the batch scheduler, license management and compute node imaging, and related duties, which would remain a 32-bit Xeon, so that isn't going to directly factor into the decision. This is motivated by a desire to allow users to run interactive jobs on the user node instead of playing games with wrapper scripts to run them on compute nodes. My personal preference would be to have a separate system that can remotely submit to the existing cluster via the batch queues, but there is a desire by management to limit the number of different systems that a user needs to know about logging into. The 64-bit motivation is mostly about providing adequate memory for
multiple users running gui applications.

Has anyone had any success with this approach, or failing that, any horror stories that would support the more flexible approach of separating the shell
server from the head node?

Thanks,
        Andy

--
Andrew Fant    | And when the night is cloudy    | This space to let
Molecular Geek | There is still a light |---------------------- [EMAIL PROTECTED] | That shines on me | Disclaimer: I don't Boston, MA | Shine until tomorrow, Let it be | even speak for myself

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