![[gb]](/mwf/v12/flags/gb.png "United Kingdom")
Have one massive IDeA project for all opening analysis? At the moment I use IDeA for opening analysis but I seperate the openings out, one project for the Caro-Kann, another for the Benko etc.
I know just having one project for all variations would lead to an ENORMOUS tree, but with really fast SSD drives in a RAID 0...wouldn't it be possible?
I know just having one project for all variations would lead to an ENORMOUS tree, but with really fast SSD drives in a RAID 0...wouldn't it be possible?
> Have one massive IDeA project for all opening analysis?
That's the idea behind Master trees. You perform analysis on individual openings/variations and export the results to your master tree. There's nothing stopping you from creating one massive IDeA project (except maybe the 2gb file size limit) but years of experience has taught us that it's a bad way to work. Individual projects are more efficient, easier to work with and much easier to manage.
Thank you! I'll spend some time reading up about the Master Tree and how to export to it - I've never done that before.
> Thank you! I'll spend some time reading up about the Master Tree and how to export to it - I've never done that before.
You're welcome. Good luck! The addition of Master Tree functionality was a huge step forward for Aquarium. Easily one of my favorite features. Right up there with the addition of depth information in IA trees (as yet unreleased publicly but very, very cool!)
OK, I've fully read Dadi's article on Chess Cafe about Master Trees. There are a couple of things I'm not clear on though. I want a single Master Tree for all my opening analysis.
i) If I export a project to the Master Tree and then do some more work on the IDeA project, do I have to export it again to keep the Master Tree up to date, or are they 'linked' in some magical way?
ii) If I import the results from the Master Tree to a new IDeA project, does it give it a sort of head-start? What if my IDeA project is analysing at a higher quality setting than the Master Tree results? Will it re-analyse those positions or trust the Master Tree?
Exciting new feature you mention there BTW. Aquarium leaves everything else in the dust.
i) If I export a project to the Master Tree and then do some more work on the IDeA project, do I have to export it again to keep the Master Tree up to date, or are they 'linked' in some magical way?
ii) If I import the results from the Master Tree to a new IDeA project, does it give it a sort of head-start? What if my IDeA project is analysing at a higher quality setting than the Master Tree results? Will it re-analyse those positions or trust the Master Tree?
Exciting new feature you mention there BTW. Aquarium leaves everything else in the dust.
![[in]](/mwf/v12/flags/in.png "India")
> i) If I export a project to the Master Tree and then do some more work on the IDeA project, do I have to export it again to keep the Master Tree up to date, or are they 'linked' in some magical way?
Yes, you have to export it again.
> ii) If I import the results from the Master Tree to a new IDeA project, does it give it a sort of head-start?
Yes, the past results are used to create a tree, so analysis can proceed from there.
> What if my IDeA project is analysing at a higher quality setting than the Master Tree results?
The higher quality settings will take over, once all leaf nodes have been extended, and alternatives generated for all nodes with new settings. But I don't know how this can be verified, except by manually going through all variations, but this is impossible in case of a large tree. I request the developers to release the full details of the alternative generation algorithm.
![[gr]](/mwf/v12/flags/gr.png "Greece")
> If I export a project to the Master Tree and then do some more work on the IDeA project, do I have to export it again to keep the Master Tree up to date, or are they 'linked' in some magical way?
export again, but the algorithm exports only NEW nodes. so its really fast.
> Will it re-analyse those positions or trust the Master Tree?
It will not re-analyse any positions. Its like those positions were in the tree from the beginning.
![[es]](/mwf/v12/flags/es.png "Spain")
Also, dont forget about security issues. From time to time, trees get corrupted
I have only ever used 1 tree 
- I have daily automated backups and my machines / switches are protected by UPS - no corruptions yet* - 2+ years.
I am still on an old version of Aquarium on my main machine - I have not had time to upgrade - testing a newer version on my laptop.
I am using 5min per position so this limits the tree size a lot - I will see how large the tree is tonight.
Shaun
* Even with UPS I have had a couple of crashes when one of my kids 'accidentally' switched of the power with his foot or thought pressing the power button was a good idea as the screen was black... lucky with the corruptions so far I guess...
- I have daily automated backups and my machines / switches are protected by UPS - no corruptions yet* - 2+ years.I am still on an old version of Aquarium on my main machine - I have not had time to upgrade - testing a newer version on my laptop.
I am using 5min per position so this limits the tree size a lot - I will see how large the tree is tonight.
Shaun
* Even with UPS I have had a couple of crashes when one of my kids 'accidentally' switched of the power with his foot or thought pressing the power button was a good idea as the screen was black... lucky with the corruptions so far I guess...
> I have only ever used 1 tree
You use one tree for all your projects? Or is there only one project? I also don't use Master trees, but sometimes I use the functions as a go between for tree operations.
> I am using 5min per position so this limits the tree size a lot - I will see how large the tree is tonight.
With 5 min per position, two years=2*5000*60/5=1.2E6 positions. With 0.2 kB/position, it must be around 24MB. Not too big to cause problems, I think.
> lucky with the corruptions
Unfortunately, my system crashes too frequently (once in two or three days), and corruptions are also quite frequent. I have hourly backups of the Aquarium data folder, but when I really needed that backup, the corrupt file had been backed up!
Hi,
Multiple projects 1 tree - I have not had to do any tree operations for a while (my 2 years may have been an underestimate?).
When I was using R2.3.2.a I had a couple of machines not connected to my LAN and I had to merge trees. Once I switched to R3 and remote engines I have not had to do any tree operations...
I did not check but assuming 0.2KB is accurate I would expect about 5 times your figure (5 threads in use on average for IDeA)...
I can't tollerate crashes as sometimes I will not check a machine for a week - at least with IDeA I can see when someting is wrong from just one machine.
Shaun
Multiple projects 1 tree - I have not had to do any tree operations for a while (my 2 years may have been an underestimate?).
When I was using R2.3.2.a I had a couple of machines not connected to my LAN and I had to merge trees. Once I switched to R3 and remote engines I have not had to do any tree operations...
I did not check but assuming 0.2KB is accurate I would expect about 5 times your figure (5 threads in use on average for IDeA)...
I can't tollerate crashes as sometimes I will not check a machine for a week
- at least with IDeA I can see when someting is wrong from just one machine.Shaun
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