On Tue, Mar 14, 2006 at 10:58:18PM -0500, Tamas K Papp wrote:
> Hi,
>
> I am trying to decide whether to buy a turion/amd mobile laptop. I
> need to know how much performance I would gain compared to my 1.33 Ghz
> G4 powerbook. I mainly use the laptop for numerical work (I am an
> economist).
>
> I am asking those who own turion/mobile athlon based machines to
> please
>
> 1. install the atlas3-test package,
>
> 2. run /usr/lib/atlas3-test/xzinvtst and send me the output,
>
> 3. tell me their cpu type, also do a cat /proc/cpuinfo
>
> If people are interested, I can compile and share the results. This
> small atlas3 test utility is perhaps not the most comprehensive
> benchmark of numerical performance, but it's the best I could think
> of. I am open to other ideas that involve atlas/blas...
>
> Please reply/cc off-list, I am not subscribed.
It's actually a reasonably interesting numerics benchmark for itself.
I'd be quite interested in dual-core AMD64 numbers for it. Here are
mine, for an Opteron 146 2 GHz (both memory banks populated):
X2100:~# /usr/lib/atlas3-test/xzinvtst
NREPS ORDER UPLO N LDA TIME MFLOP RESID
===== ===== ===== ===== ===== ======== ======== ============
0 Col GE 100 100 0.000 -1.00 8.044413e-03
0 Col GE 200 200 0.028 2281.27 1.154667e-02
0 Col GE 300 300 0.084 2568.06 1.153018e-02
0 Col GE 400 400 0.184 2779.82 2.070858e-02
0 Col GE 500 500 0.348 2871.23 1.975556e-02
0 Col GE 600 600 0.584 2956.87 2.087037e-02
0 Col GE 700 700 0.908 3020.22 2.282164e-02
0 Col GE 800 800 1.340 3055.09 2.066163e-02
0 Col GE 900 900 1.876 3107.25 2.855419e-02
0 Col GE 1000 1000 2.568 3113.90 2.666535e-02
10 cases: 10 passed, 0 skipped, 0 failed
X2100:~# cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 39
model name : AMD Opteron(tm) Processor 146
stepping : 1
cpu MHz : 2010.333
cache size : 1024 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm
bogomips : 4026.52
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
--
Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org
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