Sailfish

Discussion about chess-playing software (engines, hosts, opening books, platforms, etc...)
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deeds
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Re: Sailfish

Post by deeds » Tue Oct 01, 2024 8:50 pm

...for example, too much RAM
Required..sure in case of EXP tests via concurrent matches,
But here..RAM issue can not be problem, since my tournament
Machine has plenty of RAM installed: 256 GB
In the case of a concurrency > 1 with EXP files, well before the amount of RAM becomes a problem, it seems to me that it is the reading rate of the HDD/SSD which will immediately pose a problem !

Concurrency : 4
Exp file : 500 MB
=> min RAM : 8 GB of RAM (reminder : Khalid advised 2 GB of RAM per EXP file)
=> min reading rate : 2 GBPS (reminder : hdd = 220 MBPS, ssd = 550 MBPS, etc.)

Concurrency : 8
Exp file : 500 MB
=> min RAM : 16 GB of RAM
=> min reading rate : 4 GBPS (need a pcie ssd or a raid of ssd)

If several engines read/write on the same EXP file at the same time, good luck to avoid to corrupt it...

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