Based on Tomasz's reply to an earlier thread, 32 bit AmiBroker running on 64 bit OS will use up to 4GB RAM.
http://finance.groups.yahoo.com/group/amibroker/message/135524 However, if your particular backtest does not require that much memory, the extra RAM will not get used and thus be of limited value. Mike --- In [email protected], dingo <waledi...@...> wrote: > > Yes, they seem to have 4 processors and with hyperthreading you get 8 . > > BTW - i've seen some posts here that claim they are running 32 bit AB on 64 > bit op system. You might look into that - it would allow you to get a bit > bigger machine for the future. > > Also the SSD would be overkill imho - since AB cache's most of the data in > memory. > > d > > On Wed, Mar 11, 2009 at 12:46 PM, ozzyapeman <zoopf...@...> wrote: > > > Thanks. I was looking into i7 based-PCs. But aren't all i7's quad-cores to > > begin with? And apparently the OS sees an i7 as 8-core due to the way it's > > designed. > > > > Dell seems to have a good deal on i7 XPS desktops at 2.93 Ghz > > > > > > --- In [email protected], dingo <waledingo@> 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 <zoopfree@> 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------ > > > > **** 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 > > > > > > > > >
