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John,

I would like to submit STREAM benchmark results for

an IBM RS/6000 model 397. The entry in the table would look

something like this:

ncpus COPY SCALE ADD TRIAD

IBM_RS6000-397 1 778.8 777.5 883.1 882.4

The table entry labled

IBM-SP_P2SC-thin 1 690.6 684.6 787.2 786.8

should probably be changed to

IBM-SP_P2SC_120MHz-thin 1 690.6 684.6 787.2 786.8

since there is a 160 MHz P2SC thin SP node which is equivalent to the

RS/6000 397.

Thanks,

Frank Johnston

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

P.S. Here is the output from Stream on the IBM RS/6000 model 397.

The compiler used was xlf 5.1.0.0 with options -O3 -qarch=pwr2

----------------------------------------------

Double precision appears to have 16 digits of accuracy

Assuming 8 bytes per DOUBLE PRECISION word

----------------------------------------------

Array size = 2000000

Offset = 0

The total memory requirement is 45 MB

You are running each test 10 times

The *best* time for each test is used

----------------------------------------------------

Your clock granularity/precision appears to be 1 microseconds

The tests below will each take a time on the order

of 28828 microseconds

(= 28828 clock ticks)

Increase the size of the arrays if this shows that

you are not getting at least 20 clock ticks per test.

----------------------------------------------------

WARNING -- The above is only a rough guideline.

For best results, please be sure you know the

precision of your system timer.

----------------------------------------------------

Function Rate (MB/s) RMS time Min time Max time

Copy: 778.7826 .0415 .0411 .0419

Scale: 777.5306 .0414 .0412 .0420

Add: 883.0675 .0554 .0544 .0626

Triad: 882.3979 .0545 .0544 .0547

Sum of a is = 0.230660156259187354E+19

Sum of b is = 0.461320312485643840E+18

Sum of c is = 0.615093750014125568E+18

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