Stockfish bench in i486 & Pentium 75mhz !

[Vinvin]

I subscride to another provider. I have no more webspace.
I uploaded the images to gifyu.com

Some screenshots who got deleted from this thread :

SF6 386-33mhz (~1000 NPS)




SF6 486-33mhz (~2000 NPS)




SF6 pentium-75mhz (~6000 NPS)

[Madeleine Birchfield]

How well does the new Stockfish 12 work on Pentiums and i486?

[Vinvin]

How well does the new Stockfish 12 work on Pentiums and i486?

Reply from here : http://talkchess.com/forum3/viewtopic.p ... 99#p863999

Some approximations here :
http://www.talkchess.com/forum3/viewtop ... =6&t=72485
http://www.talkchess.com/forum3/viewtop ... =2&t=63857

A version close to SF 11 was around 3035 at 20 kn/s.
A Pentium 75 would run SF 11 at speed around 6 kn/s. Rating for SF 11 on this P75 would be around 2900-2950.
SF 12 is around 50 RP over SF 11.

[syzygy]

How well does the new Stockfish 12 work on Pentiums and i486?

Reply from here : http://talkchess.com/forum3/viewtopic.p ... 99#p863999

Some approximations here :
http://www.talkchess.com/forum3/viewtop ... =6&t=72485
http://www.talkchess.com/forum3/viewtop ... =2&t=63857

A version close to SF 11 was around 3035 at 20 kn/s.
A Pentium 75 would run SF 11 at speed around 6 kn/s. Rating for SF 11 on this P75 would be around 2900-2950.
SF 12 is around 50 RP over SF 11.

I'm afraid the network file may not fit on the harddisk of the i486.

[Madeleine Birchfield]

I'm afraid the network file may not fit on the harddisk of the i486.

What about the i586?

[syzygy]

I'm afraid the network file may not fit on the harddisk of the i486.

What about the i586?

I did some googling. Hard disks in the early 90s seem to have been typically 40MB or larger, so the network could be stored.

I don't know when 32MB of RAM or more became the norm, but already the i486 seems to have supported 256MB of RAM (on some non-typical motherboards).

So it should be possible to run Stockfish 12 with NNUE on an i486 (but most i486 systems probably couldn't for lack of 32MB of RAM or more).

[Zenmastur]

How well does the new Stockfish 12 work on Pentiums and i486?

Reply from here : http://talkchess.com/forum3/viewtopic.p ... 99#p863999

Some approximations here :
http://www.talkchess.com/forum3/viewtop ... =6&t=72485
http://www.talkchess.com/forum3/viewtop ... =2&t=63857

A version close to SF 11 was around 3035 at 20 kn/s.
A Pentium 75 would run SF 11 at speed around 6 kn/s. Rating for SF 11 on this P75 would be around 2900-2950.
SF 12 is around 50 RP over SF 11.

I'm afraid the network file may not fit on the harddisk of the i486.

In late 1993 early 1994 I built a raid array running on a Netware server. It used a CMD CRD-5000 Raid controller. The controller could support 7 strings of 4 drives each. Each had an 80-pin SCSI SCA connector. I'm not 100% sure but, I think the drives were low voltage differential type. The original plan was to attach 7 x 4-Gb Seagate 7200RPM Barracuda drives to it. Due to supply problems I ended up using Quantum drives. This gave 28Gb of raw storage, and a little less than 24Gb in a RAID 5 configuration. Eventually this system supported over 70GB of disk storage. This server supported SGI, some proprietary Unix and windows system.

My home system at the time was a netware server with dual Fijitsu 650Mb drives and a workstation with an AMD 486DX-133 overclocked. Although I'm not sure how much memory it had in it. At the time I had just upgraded a large number of workstations at work and had purchased 4.0 GB of ram (250x16Mb kits). All my home systems save one were bought and paid for by the company. I don't recall how much memory I had in my main workstation but it could have easily been 64Mb.

In any case, I think it was well within the realm of possibility for a non-average system to meet the hardware requirements to run a NNUE engine. Getting the software to do the same would have been the major problem I think.

Regards,

Zenmastur

[Vinvin]

How well does the new Stockfish 12 work on Pentiums and i486?

Reply from here : http://talkchess.com/forum3/viewtopic.p ... 99#p863999

Some approximations here :
http://www.talkchess.com/forum3/viewtop ... =6&t=72485
http://www.talkchess.com/forum3/viewtop ... =2&t=63857

A version close to SF 11 was around 3035 at 20 kn/s.
A Pentium 75 would run SF 11 at speed around 6 kn/s. Rating for SF 11 on this P75 would be around 2900-2950.
SF 12 is around 50 RP over SF 11.

I'm afraid the network file may not fit on the harddisk of the i486.

No problem for the disk. Typical disk space at the time of the i486 was around 150 MB. At this time, I bought a 486-33 with a 120 MB disk and I added a 170 MB disk one or two year later.
But the problem would be the RAM, it was around 4 MB to 8 MB (space needed to run Windows 3.1 with some apps).

A couple of years later Pentium was released.
Description of P75 here : https://ancientelectronics.wordpress.co ... tium-feel/

[mclane]

I would like to see Stockfish run on a 6502 so we can try out how it plays against the old 8 bit dedicated chess computers.

[Milos]

I would like to see Stockfish run on a 6502 so we can try out how it plays against the old 8 bit dedicated chess computers.

SF-NNUE depth 1 which is 500-1000 nodes is 2400Elo. That is at least 500 Elo above the best dedicated chess computers.
SF-NNUE on 6502 would have for sure more than 1000nodes per move. It wouldn't be any contest, it would be a slaughter.