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The short version of how it is done for optimization, which I believe
is all TJ was/is thinking of doing, is to split the load into
multiple tasks and assign those tasks to different threads each one
of which would use a different CPU and / or Core.
For example in a two variable optimization where each variable can be
varied from 1 by 1 to 100 there are 10,000 combinations. It is
simple enough to determine ahead of time the pairs ( in this case )
and then assign half to one task and half to another and then fire up
each task to use different CPU's / Cores.
This is in essence what IO does using multiple machines with IO being
the traffic cop to manage assigning tasks and communicating back and
forth via TCP/IP scokets with each of the machines that the load is
spread over.
--- In amibroker@xxxxxxxxxxxxxxx, "Fred" <ftonetti@xxx> wrote:
>
> AB does not TODAY make use of multiprocessors or even multi cores.
>
> However, TJ stated awhile back that this would be available in the
> not too distant future. At the time he was pointing at the end of
> 1st quarter '06 but pushed that off ...
>
> As far as when it will be available ... TJ ? ...
>
> As far as how it would work ? ... same source.
>
> IO is already capable of using multiple MACHINES as opposed to
> multiple processors and/or cores in a single machine to perform AB
> exhaustive search or its own intelligent search processes.
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Ton Sieverding"
> <ton.sieverding@> wrote:
> >
> > Rather interesting story Fred. My problem with all this multiple
> CPU stuff is the OS and more in particular the application
software.
> In other words, how much is really coming out of the extra
> processing power ? Multiple processors means for me simultaneous
> processing. This is not just a hardware but a software task. Is
> AmiBroker taking advantage of these features ? I just do not see
how
> this can be done ...
> >
> > Ton.
> >
> > ----- Original Message -----
> > From: Fred
> > To: amibroker@xxxxxxxxxxxxxxx
> > Sent: Monday, July 17, 2006 8:16 AM
> > Subject: [amibroker] Re: Speed Up Backtesting
> >
> >
> > Conroe will undoubtedly be the greatest thing since slice bread
> in
> > terms of a single CPU when it arrives ...
> >
> > However, as far as obsoleting everything else is concerned ...
> >
> > Assuming that AB will one day in the not too distant future
take
> > advantage of multiple CPU's in a box for optimization, a new
> single
> > chip anything will hardly be faster then the 50+ ghz that could
> be
> > cranked out by boards like this ...
> >
> > http://www.tyan.com/products/html/thunderk8qw.html
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@> wrote:
> > >
> > > Nope. Core 2 was introduced this past Fri. Obsolete's
> everything
> > out
> > > now... Major score for Intel.
> > >
> > > The desktop name is "Conroe" and the laptop version of the
new
> chip
> > is
> > > "Merom" (Intel Internal names). Core 2 is much faster and
uses
> far
> > less
> > > power than their previous Pentiums.
> > >
> > > Here are some reviews:
> > >
> > > http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2795
> > >
> > > http://www.legitreviews.com/article/362/1/
> > >
> > > http://www.techreport.com/reviews/2006q3/core2/index.x?pg=1
> > >
> > > And the announcement:
> > >
> > > http://www.intel.com/products/processor/core2/?iid=search
> > >
> > > d
> > >
> > > > -----Original Message-----
> > > > From: amibroker@xxxxxxxxxxxxxxx
> > > > [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Phsst
> > > > Sent: Sunday, July 16, 2006 5:43 PM
> > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > Subject: [amibroker] Re: Speed Up Backtesting
> > > >
> > > > > Future: Tomasz has promised a muti-core aware optimizer
> > > > > New Intel Core2 will prolly double your performance
> > > > >
> > > >
> > > > d...
> > > >
> > > > I've got a fairly new Dell Inspiron 9400 w / Core Duo. Is
> > > > this what you are refering to with 'Core2'?
> > > >
> > > > I've read Intels' comments about improved multi-tasking
> > > > (threading?) abilities w the Core Duo, but to me it just
> > > > sounds like a bunch of new buzzwords that I'm not quite
able
> > > > to decipher into a real function/benefit matrix.
> > > >
> > > > What changes does a developer like Tomasz have to make to
> > > > their software to take advantage of the new processors?
> > > >
> > > > BTW... the Inspiron 9400 is nice, and the only problem I've
> > > > experienced (three times) is with the display adapter
> failing
> > > > and causing a horizontal shift a couple of dozen times on
> the
> > > > display, requiring a re-boot to straighten out. I've
> > > > downloaded new Intel graphics card driver sofware, but the
> > > > infrequent problem still persists.
> > > >
> > > > Rgds... D
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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> > > >
> > > > Please note that this group is for discussion between users
> only.
> > > >
> > > > To get support from AmiBroker please send an e-mail
directly
> > > > to SUPPORT {at} amibroker.com
> > > >
> > > > For other support material please check also:
> > > > http://www.amibroker.com/support.html
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> >
> >
> >
> >
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