Re: variability in a test for eigs.cc

[Ben Abbott]

On Mar 28, 2010, at 2:16 PM, Michael D Godfrey wrote:

> On 03/27/2010 11:05 AM, Ben Abbott wrote:
>> The result was ...
>> 
>>      ans =
>> 
>>         773.00000   -14.58678
>>         154.00000   -13.80886
>>          28.00000   -13.03095
>>           9.00000   -12.25304
>>          10.00000   -11.47512
>>          10.00000   -10.69721
>>           9.00000    -9.91930
>>           6.00000    -9.14138
>>           0.00000    -8.36347
>>           1.00000    -7.58556
>>   
>> 
> I got:
> ans =
> 
>    756.0000   -14.5955
>    169.0000   -13.8553
>     19.0000   -13.1152
>     16.0000   -12.3750
>     12.0000   -11.6348
>      9.0000   -10.8947
>      7.0000   -10.1545
>      8.0000    -9.4143
>      2.0000    -8.6742
>      2.0000    -7.9340
> 
> On an x64 Linux fc12 system.  Essentially the same as what you got.
> 

FWIW, I tried this on Matlab ...

ans =

            8      -14.873
           40      -14.764
          118      -14.654
          235      -14.545
          250      -14.436
          167      -14.326
          119      -14.217
           46      -14.108
           14      -13.999
            3      -13.889

Ben