Re: [MLUG] Anyone got a fast modern computer

[Jack Smith <EMAIL:PROTECTED>]

On Sat, 2008-07-05 at 00:28 -0500, Stephen Montgomery-Smith wrote:

> Well, let me put it out for anyone to try.  The program is at 
> http://www.math.missouri.edu/~stephen/software/spherical.  This is what 
> to do:
> 
> tar xvfz spherical-1.15.tar.gz
> cd spherical-1.15
> make
> 
> If the make doesn't work, delete the "-march=native" in CFLAGS in 
> Makefile.  Edit timetest.sh so that NR_THREADS is equal to the number of 
> processors/cores that you have.  Then run the test:
> 
> ./timetest.sh
> 
> Then send me the results, which will be in record.txt, along with specs 
> of your computer, and what value you used for NR_THREADS.

Sorry for the late reply, but here goes:

Hardware:
CPU: AMD Athlon 64 X2 4200+ (socket 939, 2.20 GHz, 2x512 L2 cache)
Motherboard: abit KN8-SLi (NVIDIA CK804 chipset)
RAM: 4x1 GB DDR-400 
OS: Debian Lenny (testing) amd64
Compiler: GCC 4.3.1 
If you need more specs, I can give 

Run #1: NR_THREADS=2
parameters-dd.txt

real    1m18.809s
user    1m31.962s
sys     0m8.645s
parameters-ft100.txt

real    0m30.777s
user    0m47.343s
sys     0m1.984s
parameters-ft.txt

real    0m7.827s
user    0m8.541s
sys     0m1.236s
parameters-jef.txt

real    83m28.089s
user    123m30.115s
sys     0m50.379s
parameters-mj.txt

real    1m40.885s
user    1m34.754s
sys     0m5.920s

CPU usage was approximately 80% on each core.

Run #2: NR_THREADS=3
parameters-dd.txt

real    1m21.275s
user    1m33.350s
sys     0m16.441s
parameters-ft100.txt

real    0m35.580s
user    0m48.043s
sys     0m3.812s
parameters-ft.txt

real    0m8.883s
user    0m8.933s
sys     0m2.796s
parameters-jef.txt

real    88m8.775s
user    119m32.060s
sys     0m50.923s
parameters-mj.txt

real    1m22.137s
user    1m34.226s
sys     0m15.585s

I did this over ssh from another machine and did not get to check on CPU
usage. I could try this on the laptop if you want- I didn't test it
already as I have pretty much mothballed the laptop as it's my class
notes machine and I have no use for it in the summer. Oh, and it's power
supply is being loaned out to an ancient laptop I have running a MythTV
frontend and I don't exactly want to take that down if I don't have to.

--Jack


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