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Thanks for responding.
On further testing, it looks like the dll is only passed the partial
array, implying that dll's will also get the benifit of having less
data to process.
I am hoping to cache partial results in my dll to avoid recalcuating
values that do not depend on opimization parameters. It looks like I
will need to detect when the first/last bar change and flush my cache.
Too bad that we cant run the calculation on the 64 idle cores in the
video card using the CUDA api. Now that would be cool.
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
wrote:
>
> Hello,
>
> Thank you for your kind words.
>
> Everything you need to know about QuickAFL:
> http://www.amibroker.com/kb/2008/07/03/quickafl/
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "dloyer123" <dloyer123@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Friday, July 04, 2008 5:33 PM
> Subject: [amibroker] Re: AmiBroker 5.14.0 BETA released
>
>
> > Love the new Quick AFL support! It improved my execution time
from
> > 41sec to 25sec for each optimization pass. It will shave hours
off
> > each walkforward step.
> >
> > The new optimizer is a also a huge improvment and makes walk
forward
> > testing practical.
> >
> > A couple of questions for you:
> > Is the full array still passed to a DLL, or just the part of the
> > array that Quick AFL is using? It looks like the full array. Is
> > there any way that a dll can tell what part to use/ignore?
> >
> > Keep up the great work. Ami has taken a giant leap foward in the
> > last few months.
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@>
> > wrote:
> >>
> >> Hello,
> >>
> >> AmiBroker 5.14.0 BETA is released now:
> >> http://www.amibroker.com/devlog/2008/07/04/amibroker-5140-beta-
> > released/
> >>
> >> CHANGES IN VERSION 5.14.0 (as compared to 5.13.0):
> >>
> >> 1.. added support for Quarterly and Yearly intervals in all
parts
> > of the program
> >> 2.. Changes to drawing made in v5.13 caused improper drawing
> > lines located PAST the last available quote (trendlines and
> > pitchforks) when timestamping method was "START TIME of
interval".
> > This is fixed now.
> >> 3.. Fixed AddSummaryRows so 'onlycols' parameter default
(zero)
> > is applied properly
> >> 4.. Implemeted "Select all" via Ctrl-A keyboard shortcut for
all
> > list (result list in AA for example)
> >> 5.. Mouse cursor shape (moving/sizing) reflects the selected
> > study priority when more than one study exists under mouse
position
> >> 6.. new multiple Volume At Price charts at user-defined points
> > via new PlotVolumeOverlayA function
> >> 7.. QuickAFL can now be used in Automatic Analysis (Settings:
> > General: "Use QuickAFL" - check this box) - this can speed up
> > explorations, scans and backtests by factor of 2+ if range is
less
> > than "all quotations". More on this:
> > http://www.amibroker.com/kb/quickafl
> >> 8.. Range Bars compression now uses TickSize as "1R step".
> > TickSize defined in the Symbol Information, if its value is zero,
> > then 1R would be equivalent to 0.01 movement (for backward
compat)
> >> 9.. selecting date in multiple linked charts is now faster
> > because redraw is not made when selected line in higher
compressed
> > interval remains in place
> >> 10.. selector line in linked charts works OK now, regardless
of
> > selected time compression timestamping method
> >> 11.. SetBarsRequired accepts now values -2 in special meaning:
> > reference ALL bars
> >> 12.. Sometimes progress bar did not show the name of
optimization
> > engine used. Now it is fixed
> >> 13.. Status("ActionEx") provides more codes than Status
("action")
> > to detect special executions states
> >> 14.. Streaming chart update could stall if trend line handle
was
> > clicked in attempt to resize and released in the very same
position
> > (without moving the mouse). Now it is fixed.
> >> 15.. TimeFrameMode() now supports mode == 4 - which expresses
> > RANGE bars in TickSize units (as opposed to mode 3 that uses
dollars
> > for backward compatiblity)
> >> 16.. when display chart timing option is turned on and RT
stream
> > is active the application STATUS BAR now displays TOTAL time for
all
> > charts, it should be BELOW 1 second for RT trading
> >>
> >> Best regards,
> >> Tomasz Janeczko
> >> amibroker.com
> >>
> >
> >
> >
> > ------------------------------------
> >
> > 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 NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> > Yahoo! Groups Links
> >
> >
> >
>
------------------------------------
Please note that this group is for discussion between users only.
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SUPPORT {at} amibroker.com
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