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Re: Sun vs PC Linux - Anyone making the shift? [message #29296 is a reply to message #29292] Mon, 11 February 2002 11:07 Go to previous message
Pavel A. Romashkin is currently offline  Pavel A. Romashkin
Messages: 531
Registered: November 2000
Senior Member
> Michael Lefsky wrote:
>
> Why are inexpensive PC archictectures beating pants off of Sun
> machines that cost twice as much (but not alphas)?

I think raw processing (floating point ops) is just plain straight
dependent on the clock speed, as long as multithreading is supported.
I/O is not well tested, so Sun's faster i/o is not really kicking in.

> What are Windows machines ahead of PC linux machines? I would have
> thought the oppositive would be true.

Graphics/OpenGL is better on Windows, so any graphics operations are
faster under Windows. Linux compilers are not yet optimized (this is
what I've heard).

> Has anyone gone in either direction (Sun to Linux or visa versa) and
> what were your experiences?

We tried Sun vs. a Mac G4 and found G4 to be about 10% faster than the
Sun. Of course, running Fortran models on a Sun is the normal practice,
but getting a G4 for runnig IDL ad-hoc and testing the results was
feasible given that the G4 costs 10% of what Sun does.
Pavel

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