RS: [Beowulf] Sempron compile optimization

Chris Samuel csamuel at vpac.org
Mon Nov 28 22:48:07 EST 2005


On Tuesday 29 November 2005 00:58, Robert G. Brown wrote:

> So I'm guessing that SuSE SLES 9 for the PPC64 is actually a 32 bit
> distro, with a 32 bit gcc and 32 bit libraries but with libraries for 64
> bit compatibility operation installed so that you're again, basically
> cross-compiling for 64 bits.  gcc should compile native/default to
> whatever "native" is.

You are quite correct (as usual!) - it is indeed a 32-bit distro with 64-bit 
libraries. :-(

csamuel at edda:~> arch
ppc64
csamuel at edda:~> file /bin/* | grep 32-bit | wc -l
88
csamuel at edda:~> file /bin/* | grep 64-bit | wc -l
2

[csamuel at wexstan ~]$ arch
x86_64
[csamuel at wexstan ~]$ file /bin/* | grep 32-bit | wc -l
0
[csamuel at wexstan ~]$ file /bin/* | grep 64-bit | wc -l
78

The two 64-bit executables in /bin on SLES9 PPC64 are fuser and ps.

Chris
-- 
 Christopher Samuel - (03)9925 4751 - VPAC Deputy Systems Manager
 Victorian Partnership for Advanced Computing http://www.vpac.org/
 Bldg 91, 110 Victoria Street, Carlton South, VIC 3053, Australia


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