Re: Mostly 32-bit possible?
"Gary Hennigan" <glhenni@sandia.gov> writes:
> I'm considering the purchase of a dual-opteron rig and have some
> questions. In general I don't care about anything being 64-bit, except
> my own applications. These are scientific applications developed using
> MPICH (g++-3.3 + MPICH MPI libraries). Is it feasible/possible to just
> install the 32-bit "testing" release, for example, and still be able
> to compile and run my own code in 64-bit mode?
>
> My main concern with going full-blown 64 is some commercial apps that
> I rely on that currently don't have 64-bit builds.
>
> TIA,
> Gary
It is possible the same way you can run 32bit applications on
pure64. But Debians g++-3.3 is not compiled for 32/64 bit support,
only g++-3.4 and g++-4.0. Also the amd64-libs package only contains
some core libraries needed to build a 64bit kernel on i386 and might
not be enough for you.
But you can always compile g++-3.3 from source and build any 64bit
libs you need locally. Or you can just create a 64bit chroot and
compile amd use the 64bit stuff in there.
Read the amd64 HowTo concerning 32bit support and in your mind reverse
32 and 64 in all places.
MfG
Goswin
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