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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 amibroker@xxxxxxxxxxxxxxx, dingo <waledingo@xxx> 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 <zoopfree@xxx> 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 amibroker@xxxxxxxxxxxxxxx, 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 amibroker@xxxxxxxxxxxxxxx, "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
> >
> >
> >
> >
>
------------------------------------
**** 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/
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