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Are either of you guys using MCO or IO to leverage the multi cores?
Or, is the power of a single CPU and mucho RAM all you needed?
Dingo, are you running 32bit or 64bit windows?
Likewise, to both of you, 32bit or 64bit AmiBroker?
Thanks.
Mike
--- In amibroker@xxxxxxxxxxxxxxx, dingo <waledingo@xxx> wrote:
>
> Mac Pro - 8 cores, mucho ram - very nicely put together. Run
windows on it -
> WHAM!
>
> d
>
> On Thu, Oct 16, 2008 at 9:27 PM, Michael Smith
<smith1964us@xxx>wrote:
>
> > Dell M6400 workstation laptop 64 bit operating system w/16 GB
RAM, newest
> > quad core processor, 1 GB video card, 2-300 GB harddrives raid
configuration
> > ... see dell's small business products
> >
> >
> >
> > *From:* amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx] *On
> > Behalf Of *Mike
> > *Sent:* Thursday, October 16, 2008 8:35 PM
> > *To:* amibroker@xxxxxxxxxxxxxxx
> > *Subject:* [amibroker] OT: Given unlimited budget, what's the
IDEAL
> > hardware configuration
> >
> >
> >
> > Hi,
> >
> > Given an unlimited budget (helps to identify what is possible,
even if
> > not practical), what hardware configuration can deliver the best
AB
> > performance?
> >
> > There have been a number of threads touching on the topic. But,
I'd
> > like to see if I can capture insights in a single place, and to
> > reflect the advancements available today.
> >
> > Any comments on any or all sections below would be much
appreciated.
> >
> > My personal use case is for running custom backtests against 10
years
> > of EOD data across thousands of symbols. Others may feel free to
add a
> > slant of their own in their replies.
> >
> > CPU:
> > ----
> > In messages #125311 and #125420 Fred has demonstrated how a multi
core
> > system can be leveraged using MCO (see files section) to have
> > AmiBroker utilize all cores. Source:
> > http://finance.groups.yahoo.com/group/amibroker/message/125311?
> > threaded=1&l=1
> > http://finance.groups.yahoo.com/group/amibroker/message/125420?
> > threaded=1&l=1
> >
> > - Can MCO still be used when the AFL employs AddToComposite? Does
this
> > equate to overlapping writes that Tomasz warned against in message
> > #124368? Does MCO have a /IOPath equivalent to get around this as
> > described by Paul regarding IO in message #124432? Source:
> > http://finance.groups.yahoo.com/group/amibroker/message/124368
> > http://finance.groups.yahoo.com/group/amibroker/message/124432
> >
> > - Are there any chip sets that are particularly better suited for
> > AmiBroker backtesting? For example; Intel offers Core 2 Extreme QX
> > series as well as Xeon 5400 series. From what I've read, despite
> > identical specs, "the four pre-fetchers inside an X5482 are
optimised
> > for running workstation/server applications such as CAD, 3D
rendering
> > and databases, the pre-fetchers in the QX9775 are tuned for
desktop
> > applications and games." Am I correct in assuming that AmiBroker
would
> > fall more into the desktop application category? Source:
> > http://www.custompc.co.uk/reviews/601998/intel-skulltrail.html
> >
> > If the difference is not too drastic, the right motherboard paired
> > with a $300-$400 Xeon can easily be overclocked to match a stock
$1500
> > QX9775. Source:
> >
http://techgage.com/article/building_an_affordable_skulltrail_system/5
> >
> > - Is there any evidence that AmiBroker would be better off in a
single
> > chip setup (i.e. single quad core) vs. two chips (i.e. dual socket
> > quad core)? I've seen benchmarks where single chips outperformed
> > paired chips simply because software could not take advantage of
more
> > than 4 cores. Yet, Fred's MCO setup would seem to have worked
around
> > that limitation.
> >
> > Memory:
> > -------
> > In message #124353 Tomasz has said that it is the RAM that is the
> > limiting factor for heavy optimizations since they will not fit
in the
> > L2 cache. Similarly, in message #125651 Tomasz has said that "For
> > optimum performance, as much RAM as you can have and CPU with fast
> > floating point unit..." is the way to go. Source:
> > http://finance.groups.yahoo.com/group/amibroker/message/124353
> > http://finance.groups.yahoo.com/group/amibroker/message/125651?
> > threaded=1&l=1
> >
> > - Does this imply that it would be better to move to a 64bit OS
just
> > to gain access to more RAM? Is the RAM access on a 64bit OS still
> > maxed out at 4GB when running 32bit applications (compared to the
> > standard 2-3GB on a 32bit OS) as indicated in message #94875?
Source:
> > http://finance.groups.yahoo.com/group/amibroker/message/94875
> >
> > - Does the latency of FB-DIMM DDR2 800 have much of an impact on
> > AmiBroker as compared to plain DDR2 memory? There are
motherboards out
> > there that allow big overclocking opportunities, but they use FB-
DIMM
> > DDR2 memory. Would increased CPU speeds outweigh the penalty of
FB-
> > DIMM memory?
> >
> > - Is there a recommended swap file size? Tomasz has said that
having a
> > swap file is better than not having one. Is there any
benifet/drawback
> > of having a larger file vs. smaller file? Source:
> > http://finance.groups.yahoo.com/group/amibroker/message/124434
> >
> > Hard Drive:
> > -----------
> > Hard drives typically come in 7200 RPM but are also available in
10000
> > RPM, either of which can be arranged in a Raid 0 setup for further
> > gains in speed.
> >
> > - Running nothing but AmiBroker and having 12MB of L2 cache with
4GB
> > of RAM, would 10 years of EOD across 8000 symbols need to access
the
> > drive beyond the first loading?
> >
> > - Would a 10000 RPM drive or Raid configuration result in any
> > noticeable improvement in the above scenario?
> >
> > OS:
> > ---
> > 32bit Windows vs. 64bit Windows.
> >
> > - The AmiBroker website claims 25% speedup running 64bit
AmiBroker on
> > 64bit OS. It also says that 32bit plugins will not work with 64bit
> > AmiBroker, and that there are no 64bit data plugins available.
Could
> > someone please clarify what is meant by data plugin in this
context?
> > Specifically; If running a 64bit OS, would we have to run 32bit
> > AmiBroker to use a database from TC2007 or Premium Data? Or does
this
> > just apply to plugins like the Interactive Brokers TWS Plugin?
Source:
> > http://www.amibroker.com/x64/
> >
> > - Are there any arguments in favor or against running 64bit
Windows XP
> > vs. Windows Vista?
> >
> > - Are there any arguments in favor or against the various
versions of
> > Vista as compared to each other (e.g. Business vs. Home vs. ...).
> >
> > Thanks.
> >
> > Mike
> >
> > P.S. In a perfect world, the information from this post could be
> > cleaned up and posted as a topic in the UKB, also potentially
> > satisfying Herman's request at
> > http://www.amibroker.com/feedback/view_bug.php?bug_id=1461
> >
> >
> >
>
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