How many GigaFlops are processed by Ultra Sparc III Processor (Blade 2000)

> Does anyboby here knows how many flops are processed

> by a Ultra Sparc III Processor?

> or knows how to calculate it by means of commands.

> I've been looking for this answer.

There were many different speed UltraSPARC III chip produced.

To get the theoretical maximum FLOPS rate,

multiply the speed of the chip by 2 (for 2 FLOPS per cycle maximum).

The UltraSPARC IV and UltraSPARC IV+ chips

are also 2 FLOPS per cycle maximum.

I assume you are asking about a SunBlade 2000 system,

and I think that came at speeds of 900MHz, 1050MHz, or 1200MHz,

but older SunBlade 1000 systems were also available at 600MHz and 750MHz.

So,

MHzMegaFLOPS

6001200

7501500

9001800

10502100

12002400

If you have a system with multiple chips,

and the SunBlade 2000 can have two cpu chips,

then multiply by the number of chips.

So, the fastest SunBlade 2000

with 2 cpus at 1200MHz gives (2*1200*2/1000)

4.8 GigaFLOPS maximum performance.

Your application will not reach that maximum performance,

so it is better to measure the speed of a real application.

On a linpeak type of code, those systems should be able

to reach about 90% of maximum,

but most floating-point applications will be much less.

You can use the performance counters

to help you measure the actual FLOP rate.

On Solaris 9 or 10, try cputrack or cpustat

to use the performance counters.

You'll want to measure FA_pipe_completion

and FM_pipe_completion and Cycle_cnt.

You can find more details about the processors at:

http://www.sun.com/processors/

http://www.sun.com/processors/documentation.html

Peter.

peterdamron at 2007-7-6 23:22:15 >