REBEL 10 benchmark on modern computer

[Colin-G]

I tried installing Rebel 10 under MSDOS 6.22 and it requested a serial number. Is there something that can be typed there that it will accept?

I get "[0003] This is not an offical Rebel10 Cdrom!" otherwise.

"10.001.abc" (without the quotes) used to work for me during Rebel 10 installation in Windows 98.

[mbabigian]

Although the old Rebel doesn't work, I did get MChess 8 working. I extracted it from the Qemu emulation disk provided by Franz Huber at https://fhub.jimdofree.com/ and dropped it in under MSDOS 6.22. It ran at about 621,973 nps on the 3970x. The time is shown in total time (not last move time), so you must subtract out the prior move times. It is showing the second best move as best. Modern programs prefer Qh5.



It runs about 4.25 times faster than inside the emulator.

YMMV

[Vinvin]

Although the old Rebel doesn't work, I did get MChess 8 working. I extracted it from the Qemu emulation disk provided by Franz Huber at https://fhub.jimdofree.com/ and dropped it in under MSDOS 6.22. It ran at about 621,973 nps on the 3970x. The time is shown in total time (not last move time), so you must subtract out the prior move times. It is showing the second best move as best. Modern programs prefer Qh5.

http://software.farseer.org/MChess8.jpg

It runs about 4.25 times faster than inside the emulator.

YMMV

Nice !
How do you copy files into the DOS environment ?

4.25x seems low ...

[Rebel]

Try the version from here : http://rebel13.nl/dos/rebel%2010.html ("Download" at bottom of the page)

That version installs under D-Fend reloaded. I don't want to install it under an emulator. The whole issue of terrible performance noted in this thread seems so to be because people are loading it under emulators. I want to install under MSDOS 6.22. I didn't try it, but I seriously doubt the installer at that link will run under MSDOS.

If Ed can provide a serial number, I can provide a benchmark score on a 3970x.

It's a long time ago, but you can try the rebel.exe from the D-Fend reloaded version.

http://rebel13.nl/noomen/dos-rebels.html

[mbabigian]

Ed:

It's a long time ago, but you can try the rebel.exe from the D-Fend reloaded version.

See my second post, that version doesn't work.

Vinvin:
I converted the emulator's virtual drive (Chess-DOS.img) to .vmdk format and then mounted the Chess-DOS.vmdk as a drive under an old WinXP VM. I then copied the files from that drive into my MSDOS VM. Any DOS program that isn't sensitive to the speed of modern machines works fine in there.

I owned MChess back in the day and was always sad it was lost many computer upgrades ago. Fun to see it once more.

[Vinvin]

Although the old Rebel doesn't work, I did get MChess 8 working. I extracted it from the Qemu emulation disk provided by Franz Huber at https://fhub.jimdofree.com/ and dropped it in under MSDOS 6.22. It ran at about 621,973 nps on the 3970x. The time is shown in total time (not last move time), so you must subtract out the prior move times. It is showing the second best move as best. Modern programs prefer Qh5.

http://software.farseer.org/MChess8.jpg

It runs about 4.25 times faster than inside the emulator.

YMMV

What's the speed of MChess 8 under QEMU on your computer ?
Mine does around 66 Kn/sec (2.65 Mn after 40 seconds)

[Vinvin]

I made some test under Free DOS (NOT MS-DOS) under VMware.
Wchess 1.05 speed is around 2.3 Mn/sec
and Rebel 12 around 2.7 Mn/sec

[mbabigian]

What's the speed of MChess 8 under QEMU on your computer ?

It was about 146kn/sec.

[Vinvin]

What's the speed of MChess 8 under QEMU on your computer ?

It was about 146kn/sec.

Very impressive by AMD, that's 2.2x the speed of my 4930K@4 GHz !!!

[Vinvin]

I made some test under Free DOS (NOT MS-DOS) under VMware.
Wchess 1.05 speed is around 2.3 Mn/sec
and Rebel 12 around 2.7 Mn/sec

There were numbers on my old CPU (Intel Core i7-4930K@4Ghz).

I succeeded in installing and running VirtualBox 7 on my new computer, CPU : AMD 5950x@4 GHz.

Numbers are a bit higher :
Wchess 1.05 speed is around 3.3 Mn/sec
and Rebel 12 around 3.8 Mn/sec