A> A. P. Kennedy wrote:
 >> ****************** Turion below but with 32 bit kernel ***********
 >> # /usr/lib/atlas3-test/xzinvtst
 >> NREPS  ORDER   UPLO      N    LDA      TIME     MFLOP         RESID
 >> =====  =====  =====  =====  =====  ========  ========  ============
 >> 0    Col     GE    100    100     0.008    996.37  6.066196e-03
 >> 0    Col     GE    200    200     0.045   1419.78  5.083446e-03
 >> 0    Col     GE    300    300     0.154   1401.06  4.577686e-03
 >> 0    Col     GE    400    400     0.353   1449.29  5.339619e-03
 >> 0    Col     GE    500    500     0.684   1461.11  4.390384e-03
 >> 0    Col     GE    600    600     1.172   1473.71  4.389517e-03
 >> 0    Col     GE    700    700     1.865   1470.75  4.753297e-03
 >> 0    Col     GE    800    800     2.793   1466.06  5.002779e-03
 >> 0    Col     GE    900    900     3.912   1490.02  5.070376e-03
 >> 0    Col     GE   1000   1000     5.278   1515.10  5.078879e-03
 >> 10 cases: 10 passed, 0 skipped, 0 failed
 >> # cat /proc/cpuinfo processor       : 0
 >> vendor_id       : AuthenticAMD
 >> cpu family      : 15
 >> model           : 36
 >> model name      : AMD Turion(tm) 64 Mobile Technology ML-32
 >> stepping        : 2
 >> cpu MHz         : 1800.307
 >> cache size      : 512 KB
 >> fdiv_bug        : no
 >> hlt_bug         : no
 >> f00f_bug        : no
 >> coma_bug        : no
 >> 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        : 3601.38
 >> 

 A> It would be great is you were able to run these tests using a 64 bit
 A> kernel and a 64 bit version of atlas3. It seems that there is a huge
 A> performance win for atlas under 64 bit, as I cannot imagine that the
 A> difference in 2. level cache (one half of that of a turion MT) can
 A> give this huge difference in MFlops.

 A> Gathering some of the data (Dual system excluded):

 A> MFLOPS      MHz     MFLOPS/MHz      System
 A> 3113.9      2010    1.55            Opteron
 A> 2879.13     2009    1.43            Std amd64
 A> 3367.67     2556    1.33            Newcastle
 A> 2148.33     1607    1.34            Turion MT
 A> 3317.38     2411    1.38            Std amd64
 A> 1515.1      1800    0.84            Turion ML - 32 bit

 A> Reading this table (disregarding the 32 bit test) it seems that the
 A> Turion processors is just as fast as a standard opteron in terms of
 A> MFlops/MHz. The opterons beat every other AMD based CPU in this
 A> regard, which would be expected.

 A> One should note that the Turion MT-30 has a max power consumption of
 A> 25 Watt, where as the Opteron tops at 89 Watt IIRC - Huge gain in
 A> FLOPS / Watt when using a turion processor.

 A> Regards
 A> Anders Fugmann

I saw that also. Even though this is my wife's computer, I will have
to install 64bit also. The funny part was I paid 700 bucks US dollars
for this acer 5000 series laptop, but the first one was broken which
had an ML-30 @1024 Kb cache, 1.6 Ghz) processor. The store gave me the
next model up which had the ML-32 (512 Kb cache, 1.8 Ghz) for the same
price. Looked like a great deal. Now I wonder with those benchmarks. I
will install 64 bit debian this weekend and get back to this list. I
did turn off powernow before running the tests.

For the record it is plenty fast for what my wife is doing (reading
e-mail and the newspaper). Heck it never goes above the lowest cpu
speed with powernow turned on. Now I wonder if a celery-M laptop
would have been good enough ;-)

Later,

Alan


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