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Re: [amibroker] Multiple AB Installations



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Bob
 
Thanks for your patience ...
 
I will test and see what works best for me ... single / multiple installations
 
Ara
----- Original Message -----
From: Bob Jagow
Sent: Sunday, April 02, 2006 8:38 PM
Subject: RE: [amibroker] Multiple AB Installations

Ara,
 
The files are ASCII, NOT binary.
You can open them with Notpad if that's all you have.
 

Regards,
Bob

-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf Of Ara Kaloustian
Sent: Sunday, April 02, 2006 3:58 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Multiple AB Installations

No I had not examined each installation ... files are binary, so not very meaningful.... just browsed throuhgh help files
 
Based on TJ''s response I guess it's safe to use AB either way ... and as of now I don't see any advantage or disadvantage either way.
 
My impression (not his words) is that TJ is recommending we use ONE installation with multiple instances
 
Ara
----- Original Message -----
From: Bob Jagow
Sent: Sunday, April 02, 2006 3:10 PM
Subject: RE: [amibroker] Multiple AB Installations

Have you examined those files in your different installations and found them meaningfully different?

 

-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf Of Ara Kaloustian
Sent: Sunday, April 02, 2006 1:51 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Multiple AB Installations

 

Hi Bob,

 

How about Broker.Sectors and Broker.Industries Broker.Params ...  these are all in the program directory ... do they not cause interference when only one installation is used for all databases, since every instance will have to start at same database and then be shifted to another one (if so desired).

 

Also another point came up ... Is there an advantage, either way, for access to CPU capacity? 

In a multithreaded CPU, AB is allowed a maximum of 50% of CPU capacity.

Can a second instance of same installation access the other 50% of CPU capacity as well as a separate installation??? or are both limited to same 50% ???

 

Ara

 

 

----- Original Message -----

From: Bob Jagow

To: amibroker@xxxxxxxxxxxxxxx

Sent: Sunday, April 02, 2006 1:18 PM

Subject: RE: [amibroker] Multiple AB Installations

 

Ara,

The DB-specific info  is in broker.layout, broker.master, broker.watch, and broker.workspace.

All four reside in the individual  DBs.

Bob

-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf Of Ara Kaloustian
Sent: Saturday, April 01, 2006 10:45 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Multiple AB Installations

 

Graham,

 

Thanks for the detailed note below...

 

I read through the section on broker.* files and what they contain.

 

There seems to be a fair amount of potential for interference between instances from same installation depending on how one uses the system. For my purposes having one set of Broker.* files would mess things up ... so I have to stick to multiple installations.

 

With TJ solution of disabling autosave, things should be OK, but I do hope he modifies the autosave as it is a very good feature to have.

 

Ara 

----- Original Message -----

From: Graham

 

To: amibroker@xxxxxxxxxxxxxxx

Sent: Saturday, April 01, 2006 5:58 PM

Subject: Re: [amibroker] Multiple AB Installations

 

I have many databases for different markets and timeframes and have always run 2 instances during the trading day, intraday and end of day databases. Plus I often move to different databases as I do work on different AFL.

I did use 2 installations a long time ago but have found one installation running multiple instances is easier and better.
I have occasionally run afoul of the layouts not being saved properly, but to be honest this is such a small inconvenience to re-insert any AFL charts that you added before.
Recent changes occuring make the saving of layouts better from memory as they will auot save to your named layout when exiting that database, correct me if I am worng.

I would say I am a far heavier user the the majority of users as my work of writing AFL takes me to many different exchanges and time bases ( some of these are end of day and intraday of ASX, US, forex and futures exchanges) I keep all of these in separate databses so that I can concentrate on using the data rather than worrying over same symbols overwriting. I also have many different layouts for each database to isolate the various jobs I do as I do not want 100's of sheets for each window finding 10 to be more than sufficient for organising the charts. 

I say all this to just point out that a single installation works well with very minor inconveniences.

I would also point out that you get into the habit of saving your layouts as named layouts, and like all software get into the habit of saving these as you make changes. They can easily then be brought back to the living display as required.


--
Cheers
Graham
AB-Write >< Professional AFL Writing Service
Yes, I write AFL code to your requirements
http://e-wire.net.au/~eb_kavan/ab_write.htm

 

 

On 4/2/06, Bob Jagow <bjagow@xxxxxxxxxxxxx> wrote:

I use two installations all the time, but on separate computers!

Two in the same boot partition interact as badly as two instances [due to shared registry settings].

 

Bob

 

-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto: amibroker@xxxxxxxxxxxxxxx]On Behalf Of Ara Kaloustian
Sent: Saturday, April 01, 2006 3:27 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Multiple AB Installations

 

Graham,

 

I would prefer to have a single installation and use it with multple data bases as you suggest... however I ran into problems earlier doing that. That was some time ago that I had to switch to multiple databases... perhaps before certain changes were made that make the operation of a single installation using multiple instances practiclal.

 

I know that many changes have been made over time to the preferences and parameters controlling each data base setting have been moved to the individual data base. The problem earlier was that parameters relating to databases were common and part of preferences, thus all databases had one set of parameters (such as number of bars)... which was a pain...

 

Also I beleive that even with current version, a single installation would have a single set of symbols. Broker files reflecting a unique set of setting for a particular application (EOD, Real Time etc). Is that nor correct?

 

 

Do you (or anyone else) currently use a single installation with multiple instances without any complications???

 

Thanks

 

ara

----- Original Message -----

From:

Graham

To: amibroker@xxxxxxxxxxxxxxx

Sent: Saturday, April 01, 2006 3:04 PM

Subject: Re: [amibroker] Multiple AB Installations

 

Why do you need multiple installations of AB on one computer

You can just have the one installation and use different databases. AB can be opened many times from one installation and have separate database for each occurence.

--
Cheers
Graham
AB-Write >< Professional AFL Writing Service
Yes, I write AFL code to your requirements
http://e-wire.net.au/~eb_kavan/ab_write.htm

 

 

On 4/1/06, Tomasz Janeczko < amibroker@xxxxxx> wrote:

Hello,

 

Either do not use multiple installations or TURN OFF auto-save of layouts (Tools->Prefs->Misc).

 

Best regards,
Tomasz Janeczko
amibroker.com

----- Original Message -----

From: Ara Kaloustian

To: AB-Main

Sent: Saturday, April 01, 2006 6:10 AM

Subject: [amibroker] Multiple AB Installations


 

I am having problems with multpile installations getting mixed up.

 

When I open one installation, I find the layout from another installation have been copied into it.

 

Example:

 

1. Open Tick data base and see layouts from Time (1 min) or EOD data base.

 

2. I run scripts via OLE on EOD data base, and results show up in RT installation.

 

How can we keep these from crossing over?

 

 

(I think there was a recent related discussion, but can not find it)

 

Tahnks

 

Ara

 

 



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SUPPORT {at} amibroker.com

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§   To unsubscribe from this group, send an email to:
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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:
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