Question about Critter 1.6 & Gaviota gtb's

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carldaman
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Question about Critter 1.6 & Gaviota gtb's

Post by carldaman »

I've downloaded the gaviota tablebases and stored them into a folder on my hard drive, organized into 3-, 4-, and 5-men subfolders. The actual path to these subfolders is C:\gtb\gtb.cp4 and I specified this path within Critter's parameters, in the Gaviota tb path field.

My problem is that I see no evidence that Critter is actually using the tb's. The PV info doesn't display anything about tb hits, as it does with engines that use Nalimov. I've tried to set the usage to 'everywhere' and also to 'root only', but I'm not sure if I'm doing the right thing.

Any help would be appreciated.
Thanks,
Carl
IGarcia
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Joined: Mon Jul 05, 2010 10:27 pm

Re: Question about Critter 1.6 & Gaviota gtb's

Post by IGarcia »

carldaman wrote:I've downloaded the gaviota tablebases and stored them into a folder on my hard drive, organized into 3-, 4-, and 5-men subfolders. The actual path to these subfolders is C:\gtb\gtb.cp4 and I specified this path within Critter's parameters, in the Gaviota tb path field.

My problem is that I see no evidence that Critter is actually using the tb's. The PV info doesn't display anything about tb hits, as it does with engines that use Nalimov. I've tried to set the usage to 'everywhere' and also to 'root only', but I'm not sure if I'm doing the right thing.

Any help would be appreciated.
Thanks,
Carl
Do not seperate nothing. Just put all files into same folder example: c:\gtb
Then configure critter to use that folder

regards
Ignacio
carldaman
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by carldaman »

IGarcia wrote:
carldaman wrote:I've downloaded the gaviota tablebases and stored them into a folder on my hard drive, organized into 3-, 4-, and 5-men subfolders. The actual path to these subfolders is C:\gtb\gtb.cp4 and I specified this path within Critter's parameters, in the Gaviota tb path field.

My problem is that I see no evidence that Critter is actually using the tb's. The PV info doesn't display anything about tb hits, as it does with engines that use Nalimov. I've tried to set the usage to 'everywhere' and also to 'root only', but I'm not sure if I'm doing the right thing.

Any help would be appreciated.
Thanks,
Carl
Do not seperate nothing. Just put all files into same folder example: c:\gtb
Then configure critter to use that folder

regards
Ignacio
Thank you, that worked!
Norm Pollock
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by Norm Pollock »

Sometimes a backslash at the end will get the tbs to work:

c:\gtb\
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Sylwy
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Re:A hint

Post by Sylwy »

carldaman wrote:I've downloaded the gaviota tablebases and stored them into a folder on my hard drive, organized into 3-, 4-, and 5-men subfolders. The actual path to these subfolders is C:\gtb\gtb.cp4 and I specified this path within Critter's parameters, in the Gaviota tb path field.

My problem is that I see no evidence that Critter is actually using the tb's. The PV info doesn't display anything about tb hits, as it does with engines that use Nalimov. I've tried to set the usage to 'everywhere' and also to 'root only', but I'm not sure if I'm doing the right thing.

Any help would be appreciated.
Thanks,
Carl
Just put Critter 1.6(a) folder in the same directory with Gaviota TBs folder .For example:

-C:/gtb and C:/Critter 1.6a , or
-D:/gtb and D:/Critter 1.6a

This is enough. The engine is already configured to use Gaviota TBs if they are in the same directory !

Regards,
SilvianR :wink:

NR: for Gaviota TBs : just put all downloaded files in a single folder : "gtb". This is , again , enough !
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pohl4711
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by pohl4711 »

stronlgy recommended is using flash memory for GTBs and NalimovTBs (much faster access than HDD). 16GB USB-Stick for both (3-5 pieces) is cheap (today)...

Stefan
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Kingghidorah
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by Kingghidorah »

pohl4711 wrote:stronlgy recommended is using flash memory for GTBs and NalimovTBs (much faster access than HDD). 16GB USB-Stick for both (3-5 pieces) is cheap (today)...

Stefan
my 5,400 RPM drive is pretty quick.
En passant,

Lonnie

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Norm Pollock
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by Norm Pollock »

pohl4711 wrote:stronlgy recommended is using flash memory for GTBs and NalimovTBs (much faster access than HDD). 16GB USB-Stick for both (3-5 pieces) is cheap (today)...

Stefan
flash memory certainly lessens wear and tear on the HDD. But what about access time? Using flash memory requires USB (usb2 in most cases) access time as opposed to HDD access time.
syzygy
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by syzygy »

Norm Pollock wrote:flash memory certainly lessens wear and tear on the HDD. But what about access time? Using flash memory requires USB (usb2 in most cases) access time as opposed to HDD access time.
I would be surprised if HDD seek time beats USB2 access time. For tablebase access, seek time is what counts.

Of course a real SSD would perform better than a USB stick.
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pohl4711
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Re: Question about Critter 1.6 & Gaviota gtb's

Post by pohl4711 »

syzygy wrote: I would be surprised if HDD seek time beats USB2 access time. For tablebase access, seek time is what counts.
USB access is 20-100x faster than HDD-access. Because of that, all TBs are very, very slow on HDDs!
syzygy wrote: Of course a real SSD would perform better than a USB stick.
Not sure about that. A SSD is flash-memory, too.