make faster Richards benchmark

[Peter Hansen]

Josef Meile wrote:

> Duncan Lissett wrote:
> 
>> I'd appreciate any suggestions on how to make faster Python
>> implementations of Richards benchmark. Perhaps there are obvious
>> problems that can be corrected?
>>
>> http://www.lissett.com/ben/bench1.htm
> 
> What's about including a second python implementation of the Richards 
> benchmark using psyco? You don't have to modify your code, you only have 
> to add two lines. It would be also interesting to see the differences 
> between both source codes.

I get an immediate 38% speedup by doing "import psyco; psyco.full()"
at the start of the benchmark.

-Peter