Stream results for an rx6600 with Dual-Core Itanium 2 processors

From: Kirby L. Collins <kcollins@rsn.hp.com>
Date: Wed Sep 20 2006 - 21:34:14 CST

Stream results for HP Integrity rx6600 with the zx2 chipset, and 1.6Ghz/24MB
Dual-Core Intel(R) Itanium(R) 2 processors, running HP-UX:

1.6GHz/24MB Dual-Core Intel Itanium 2
24GB memory (24x1GB DIMMs)
HP-UX 11.23.0609, HP f90 11.23.32
---------------------------------------------------------
Function Rate (MB/s) Avg time Min time Max time
Copy: 4772.5950 0.1085 0.1073 0.1176
Scale: 4712.9383 0.1090 0.1086 0.1103
Add: 5510.6178 0.1398 0.1394 0.1433
Triad: 5605.4993 0.1371 0.1370 0.1371

The runs used the v5.6 f90 version of the stream benchmark, with the
following changes:

96,97c96,97
< INTEGER n,offset,ndim,ntimes
< PARAMETER (n=2000000,offset=0,ndim=n+offset,ntimes=10)

---
>       INTEGER*8 n,offset,ndim,ntimes
>       PARAMETER (n=32002032,offset=0,ndim=n+offset,ntimes=10)
106c106
<       INTEGER bytes(4)
---
>       INTEGER*8 bytes(4)
124c124
< *     COMMON a,b,c
---
>       COMMON a,b,c
245c245
<  9020 FORMAT (1x,a,i4,a)
---
>  9020 FORMAT (1x,a,i6,a)
compiled as follows:
        f90 -o stream_d.uni +Ofaster +DSitanium2 +DD64 +extend_source
+autodbl4 +noppu -Wl,+pd,64M +Onoopenmp stream.uni.f mysecond.o
Here is the output:
stream_d.uni
----------------------------------------------
 Double precision appears to have 16 digits of accuracy
 Assuming 8 bytes per DOUBLE PRECISION word
----------------------------------------------
 ----------------------------------------------
 STREAM Version $Revision: 5.6 $
 ----------------------------------------------
 Array size =   32002032
 Offset     =          0
 The total memory requirement is    732 MB
 You are running each test  10 times
 --
 The *best* time for each test is used
 *EXCLUDING* the first and last iterations
 ----------------------------------------------
 Printing one line per active thread....
 ----------------------------------------------------
 Your clock granularity/precision appears to be      1 microseconds
 ----------------------------------------------------
Function     Rate (MB/s)  Avg time   Min time  Max time
Copy:       4772.5950      0.1085      0.1073      0.1176
Scale:      4712.9383      0.1090      0.1086      0.1103
Add:        5510.6178      0.1398      0.1394      0.1433
Triad:      5605.4993      0.1371      0.1370      0.1371
 ----------------------------------------------------
 Solution Validates!
 ----------------------------------------------------
Received on Thu Sep 21 07:34:37 2006

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