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[Xen-users] Re: [Xen-devel] Re: Using Xen Virtualization Environment for Development and Testing of Supercomputing and High Performance Computing (HPC) Cluster MPICH2 MPI-2 Applications
On Fri, Oct 30, 2009 at 09:24:33AM -0700, Jeremy Fitzhardinge wrote:
> On 10/30/09 09:14, Mr. Teo En Ming (Zhang Enming) wrote:
> > Strange. I took nearly 1 hour to compile on my Intel Pentium Dual Core
> > E6300 2.8 GHz processor on Intel Desktop Board DQ45CB with 8 GB
> > DDR2-800 memory.
>
> It depends a lot on how much kernel you have configured; I can believe a
> full distro-like config with everything built with modules would take a
> lot longer. Are you using make's -j option to use multiple cores? I
> tend to use "make -j4" to get good processor use on a dual-core system
> (rough rule of thumb, -jX where X = 2*ncpu).
>
On a Core2 quad 2,66 GHz CPU Fedora 12 default-config full build
takes around 18 minutes.. with 8 GB of RAM and -j6.
-- Pasi
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