Title: Re[2]: [amibroker] AB has for Win32 stopped working problem
Hello Tomasz,
Is there any chance to get an article on the Knowledge base on how to determine the best settings for AB, cache, bars loaded, memory usage, etc. to run AmiBroker efficiently without running out of memory?
Perhaps there could a Help button on the Performance Monitor that explains and/or suggests how to optimize our setup.
Today most computer users are just that: "users". We don't have the time, or the desire, or the brains :-) to study and stay up to date on computer hardware. There was a time it was fun but those days have long gone ...
Best regards,
herman
Friday, July 31, 2009, 6:02:12 AM, you wrote:
> Hello,
> You guys seem to have some crazy expectations. Your computer hardware has limits !
> Let me calculate,
> 8 years, 1-minute data ? 480 minutes per trading day, 250 trading days per year = 960K bars per symbol
> One bar 40 bytes. One symbol 38MB.
> 100 Symbols = 3.8GB
> For data alone.
> ===========
> Now imagine that if you are running backtest you must have at least TWICE that memory to
> keep intermediate results.
> You have simplt run out of memory.
> Solutions for your "problem":
> 1. Decrease number of symbols
> 2. Decrease number of bars
3. Decrease in-memory cache in Tools->>Preferences, "Data" to 11 symbols
> 4. Run 64 bit version of AmiBroker on 64 bit version of Windows and have 10GB RAM installed
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "mkecera" <mkecera@xxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Friday, July 31, 2009 9:55 AM
> Subject: [amibroker] AB has for Win32 stopped working problem
>>I tried backtesting on one minute data (8 years,100 symbols, 1 minute data). I run a strategy that backtested without any problems
>>on 5 minute data and every time I try it on 1 minute data I get an error: AB for Win32 has stopped working. This is when AB is
>>trying to list all the trades in AA. Then I am forced to close AB.
>> Tried to fiddle with the Data settings in preferences to no success.
>> Has anyone encountered this problem before? I would appreciate any help.
>> Thanks.
>> (I have Vista 32)
>> BR,
>> MK
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**** 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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