A bit too complex to post an example, but in short I use the Optimizing engine in non intended ways. I optimize over tens of thousands of "variables" that were themselves generated by an earlier optimization algorithm. And during the optimization, I write to an external text file to generate a database of yet more variables. IO tends to give wonky results with all that.
But I do use IO anytime I do 'normal' optimizations, and it's a solid speed-up help. --- In [email protected], dingo <waledi...@...> wrote: > > IMHO - you should do everything you can to be able to run IO. There are ways > to make discontinuous variables continuous for optimizations. Mind posting > an example of yours? > > d > > On Wed, Mar 11, 2009 at 9:33 AM, dingo <di...@...> wrote: > > > Intel dual core i7 with fast clock - AB only uses 1 core. 3gig mem. Intel > > SLC flash (if you've got the money otherwise WD Raptor). Medium video card. > > > > > > d > > > > On Wed, Mar 11, 2009 at 12:57 AM, ozzyapeman <zoopf...@...>wrote: > > > >> I should add that I need to run exhaustive optimizations, as opposed to > >> CMAE or using Fred's IO, as my variables are discontinuous - not > >> traditional > >> indicator-type variables. > >> > >> In my parallel dream life, I run AB Ultra Professional 7.0 on 8 state of > >> the art graphics cards, with thousands of processors, 500,000 times faster > >> than good old AB 5.24. > >> > >> But I digress. ;-) > >> > >> In the real world, what is the best I can do? > >> > >> > >> --- In [email protected], "ozzyapeman" <zoopfree@> wrote: > >> > > >> > Now that I am just about trading full time, my main PC has become a > >> dedicated trading computer. That only leaves me with a clunky second PC > >> (6-years old) for doing offline optimizing. And it's waaay too slow. > >> > > >> > So I am in the market for a new PC, and want to get something powerful, > >> but don't want to overpay for stuff that won't be used. For example, 8GB of > >> RAM sounds great, but if WinXP only uses 4GB (or 3?) then I imagine the > >> other 4 GB just goes to waste? > >> > > >> > If I plan to use this PC mainly for offline optimizing and backtesting, > >> what are the recommended specs? I want as much speed as I can possibly get. > >> My optimizations tend to be humongous, taking days on a quad core. > >> > > >> > Any hardware gurus please feel free to chime in: > >> > > >> > - RAM? > >> > - Quad-core vs Eight-core? > >> > - OS? > >> > - HD type (flash vs mechanical)? > >> > - any other hardware/software suggestions for increasing speed? > >> > > >> > Thanks! > >> > > >> > >> > >> > >> > >> ------------------------------------ > >> > >> **** IMPORTANT PLEASE READ **** > >> This group is for the discussion between users only. > >> This is *NOT* technical support channel. > >> > >> TO GET TECHNICAL SUPPORT send an e-mail directly to > >> SUPPORT {at} amibroker.com > >> > >> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > >> http://www.amibroker.com/feedback/ > >> (submissions sent via other channels won't be considered) > >> > >> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > >> http://www.amibroker.com/devlog/ > >> > >> Yahoo! Groups Links > >> > >> > >> > >> > > >
