The execution time is dependent on several factors including, but not
limited to:
1) objective function,
2) constraint function,
3) number of market systems,
4) number of trading periods, and
5) DEoptim settings.
Throwing more "iron" at the problem will help regardless of which
factors are the bottleneck.
Careful inspection of your specific problem could also yield speed
improvements (e.g. are the past 5 years truly representative of what
you expect to happen over the horizon you're optimizing for?). I
would need more information to provide any recommendations, so feel
free to email me off-list.
Best,
--
Joshua Ulrich | FOSS Trading: www.fosstrading.com
On Sat, Jul 30, 2011 at 3:51 AM, TradingPro <aikid...@gmail.com> wrote:
> Hiro, I have been working with GAs and such high demand technologies
> for the past decade or so (mainly for data mining market
> inefficiencies and WFA) and so have a farm of servers whirring away
> most hours; this may have the benefit of keeping the house warm during
> the cooler winter months here in Sydney yet I have also harboured the
> desire to take all this HPC offsite much like you are considering. I
> understand that Ralph, Josh or possibly Soren may have taken some
> steps to look into this with regards to implementing LSPM offsite and
> so would also be keen to hear if anything came through from this
> effort.
>
I've been working on a web-service prototype that would allow you to
take advantage of Amazon's HPC services. I can only work on it in my
spare time, so it's not progressing as fast as I would like. I also
think it's going to take a major re-write of DEoptim to really take
advantage of distributed computing.
> Josh, please allow me to also extend my sincere thanks for your
> sharing and the work that you have done within R. There are no doubt
> numerous individuals and institutions that behind the scenes are
> continuing to benefit from what you share with and give to others, so
> again our gratitude!!!
>
Thanks for your kind words; I truly appreciate hearing when people
find my contributions helpful.
> Good to be here! Grant
>
>
Best,
jab
--
John Bollinger, CFA, CMT
www.BollingerBands.com
If you advance far enough, you arrive at the beginning.
I wasn't aware of that. Interesting alternative.
> Cloud providers are just as likely to
> have onerous terms of service as rack-based hosting or co-location
> facilities though.
I've actually thought about that a lot. Last year I considered using
RackSpace as a fall back until I encountered their tos.
> So, unless you can afford to run your own ops center,
> spreading your bets (so to speak) is a good middle ground, in my humble
> opinion.
If you have a bit of time, I'd love to hear you expand on this when you can.
jab