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From: Tim Prince (tprince_at_[hidden])
Date: 2004-12-31 11:04:11


At 11:50 PM 12/30/2004, John Lau wrote:

>Dear all,
>
>Have anyone try to run lam on a EM64T and i386 heterogeneous cluster? In
>LAM FAQ is says "An important restriction is that LAM does not currently
>support systems that have datatypes that are different sizes".
>So does it mean lam do not run on EM64T and i386 heterogeneous cluster?
>
>Can it work if I use i386 lam-compiled binarys on both EM64T and i386
>machines? How about if I install i386 version LAM on the EM64T machines?
>

Yes, you must build lam with 32-bit compilers and run 32-bit builds
throughout. Aside from the lam datatype limitation, the 64-bit machine
will hang if you mix 32- and 64-bit builds. Most people would run the same
32-bit OS throughout, although there's a possibility it may work with a
mixture of 32- and 64-bit OS.

Tim Prince