Mac OS X or Linux?

Eray Ozkural exa at
Tue Apr 8 08:41:36 EDT 2003

On Monday 07 April 2003 21:33, Joseph Landman wrote:
> Numbers I have seen for bioinfo apps seem to indicate that the hardware
> is faster when code is redone for the built in vector registers (gcc
> compiler doesn't automatically do this).  Then again, this is comparing
> non-SIMD to SIMD, and I would expect that the SIMD could be faster at
> specific code patterns/fragments.  Single CPU (non-SIMD) to single CPU
> (non-SIMD) the performance comparison seems not to favor the current
> Apple PPC hardware against current IA32 machines.

I wonder if we can really classify those vector operations as SIMD which means 
Single Instruction Multiple Data architecture. (no this isn't a troll!)


Eray Ozkural (exa) <erayo at>
Comp. Sci. Dept., Bilkent University, Ankara  KDE Project:
www:  Malfunction:
GPG public key fingerprint: 360C 852F 88B0 A745 F31B  EA0F 7C07 AE16 874D 539C

Beowulf mailing list, Beowulf at
To change your subscription (digest mode or unsubscribe) visit

More information about the Beowulf mailing list