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Hello,
Graham has a very valid point. Sometimes you may run out of physical memory
and then Windows starts swapping. When swapping occurs the operating
system gets full control and applications may appear to be "hanging"
(you get "not responding" message) but it fact it waits for Windows
to finish memory swapping process.
Anyway in newest betas of AmiBroker (4.66.0 or higher)
have new control for maximum megabyte size of stock data cache (previously it had only the limit
on number of stocks) in Tools->Preferences->Data (see the read me).
This new control was added specifically to address such problems
as previous versions could try to use too big cache.
Now with version 4.66.0 or higher the default limit of data cache is 25% of physical RAM.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Graham" <kavemanperth@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, January 13, 2005 8:19 AM
Subject: Re: [amibroker] Re: Amibroker foten hangs when running test
>
> When I am running a few memory hungry programs including excel etc, I
> find that during a large scan then AB does hang, but if I leave it go
> then it returns with the results. To me this is just having all the
> memory used up and the process having to run on less ram than it is
> needing. It may even show "not responding" in the windows task
> manager, but here again it is just showing that all memory available
> is being used, not that the program is not running.
>
> excel is bad for this when I have a large calculating set of sheets.
> It often splits off into second excel instance as it calculates its
> way to the end, I guess using the virtual memory.
>
>
>
>
> On Thu, 13 Jan 2005 05:08:21 -0000, Phsst <phsst@xxxxxxxxx> wrote:
>>
>>
>> Tomasz,
>>
>> With all due respect, I am experiencing the same problem. But until
>> now, instead of reporting the problem in the forum, I have been
>> waiting to try to obtain a reproducable scenerio for you to work with
>> (without success so far).
>>
>> But just because a user cannot produce a 'reproducable' problem
>> shouldn't mean that they cannot comment about the problem on the forum.
>>
>> We will eventually come up with something you can work with. But in
>> the mean time it it is not unreasonable to give you some forewarning
>> that something is askew.
>>
>> Rgds,
>>
>> Phsst
>>
>> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
>> wrote:
>> > Hello,
>> >
>> > It was written many, many times but here it comes again:
>> > in order to fix the "problem", the problem has to be reproduced.
>> > Problems that can not be reproduced can not be fixed.
>> >
>> > I do not know what formulas/settings you are using,
>> > and what you do in AA (scan/backtest/exploration/ ???)
>> > so this discussion is pointless without seeing actual case details
>> >
>> > I wrote this already but apparently this needs to be repeated:
>> >
>> > You would need to provide
>> > details to support at amibroker.com:
>> >
>> > - the database (data source) you are using
>> > - formula
>> > - trade list
>> > - settings file (.abs)
>> > - ticker list you were testing on
>> > - set of parameters you claim produce problem, etc....
>> >
>> >
>> > Best regards,
>> > Tomasz Janeczko
>> > amibroker.com
>> > ----- Original Message -----
>> > From: "archstone2003" <archstone2003@xxxx>
>> > To: <amibroker@xxxxxxxxxxxxxxx>
>> > Sent: Wednesday, January 12, 2005 12:22 PM
>> > Subject: [amibroker] Amibroker foten hangs when running test
>> >
>> >
>> > >
>> > >
>> > > Hi,
>> > >
>> > > When I run Automatic Analysis, the program often hangs if the number
>> > > of symbols is large.
>> > >
>> > > Does this happen to most peopele? Is there a way to avoid it? Thx.
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > > Check AmiBroker web page at:
>> > > http://www.amibroker.com/
>> > >
>> > > Check group FAQ at:
>> http://groups.yahoo.com/group/amibroker/files/groupfaq.html
>> > > Yahoo! Groups Links
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>>
>>
>> Check AmiBroker web page at:
>> http://www.amibroker.com/
>>
>> Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>
>
> --
> Cheers
> Graham
> http://e-wire.net.au/~eb_kavan/
>
>
>
> Check AmiBroker web page at:
> http://www.amibroker.com/
>
> Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
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