Spinhenge

[TigerWing]

Onwards, to the next challenge! GO,.. GO,.. for the good of the city!

we already have one don't we?..... watching Planet 3D en some Russian army....

[Raby]

Now all my PC's are crunching Spinhenge units, I've notice something I can't explain :

Among my PC I have :

Athlon XP 2600+
Athlon 64 3800+
Pentium D 930 3 Ghz
Xeon 3,6 Ghz

The strange thing is they're all taking the same time to crunch a unit, about 90 minutes. There are slights differences but not significant (2-3%).

How could you explain that

[tutta55]

@Raby: I think it's a pure coincidence.

I have a Pentium D 3.0 myself, and it is indeed comparable to a X2 3800+. It is also faster than a Xeon 3.06GHz, so it might compare to a Xeon 3.6. The 2600+ I don't have any data on.

[Raby]

I've made some benchmarks (1st score = float - 2nd = int):

Xeon 3.6 G : 1787 - 2741 (a snail & a shame for a 3.6G CPU )
Athlon XP 2600 : 1910 - 3214
P930 D 3.0 : 3359 - 11134
A64x2 3800 : 3441 -11182

I can hardly admit they all take the same time to compute a WU

I'm then wondering if Spinhenge could adapt the computing time on fast machines to limit the amount of results we send them back??.

[tutta55]

So at least the Pentium D and the 3800+ are similar.

As for the Xeon: Boinc benchmarks are *really* bad for multi-processor machines. The 2600, what Boinc does it run?

Here are my machine garden's timings for a SpinHenge WU (not large enough to call it a park )

Pentium 4 1.6: 10.700 seconds
Pentium III 800: 19.200 seconds
Pentium D: 6.300 seconds
C2D: 3.550 seconds

[TigerWing]

P4 2.8 : 9500s
A64 3500+ : 5500s

[Raby]

Here are the timings for a WU :

A64x2 3800 : 5750s (x2 of course)
XP 2600 : 5800s
D930 : 6000s (x2)
Xeon 3.6 : 6000s

Funny no? the old Xp do better than a D930...
It runs a Boinc 3.6.4 (and the others a 3.5.0). Seems that I should consider installing that 3.6 on all the machines .

[Krikke]

Do they all claim the same credit as well?

[tutta55]

The XP of course being single core. The X2 3800 will still get twice as much work done. The fact that the XP uses 5.6.4 explains why its benchmarks are so much lower than that of the machines which use the optimized 5.5.0.

[tutta55]

SpinHenge seems to be down. Uh oh, I haven't got a backup project yet on my machine at home