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Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka runs very well in a VMWare Virtual Machine.
- - By wgs77 (*) Date 2009-08-12 17:28
Having a Virtual Machine for chess can provide advantages to other forum users, such as:

1) Having a stripped down guest OS installed (turning off all Windows services which aren't required).
    Having a clean registry.  Not needing to install any Anti-virus/security software (which typically slows down a computer).
   
2) Provides a portable environment which can easily be taken and used on other computers via VMWare Player.

I purchased VMWare 6.5.2 Workstation, and I created a dual processor Virtual Machine containing Windows XP Pro.

I then installed Arena 2.01, with 2 engines that I've purchased: Rybka 2.3.2a, Zappa Mexico II.
I also installed the following free engines: Glaurung22, TogaII14-5c, Fruit2-3-1, Spike 1.2, and Naum 2.0.
I started a long running tournament.  All engines seem to be running normal and fast.

I did some research on VMWare, and VMware claims an overhead as small as 3% to 6% for computationally-intensive applications.

If anyone could suggest some chess benchmarks, I could run the benchmark outside and inside the VM on the same host computer and post the results.
Parent - - By Gaмßito (****) Date 2009-08-12 19:43
VMWare is a very good program. But anyway, you will not have benefits about speed in running Rybka or any other chess program there. In fact, these chess programs will never run faster than in your original OS.

Regards,
Gaмßito.
Parent - - By wgs77 (*) Date 2009-08-12 22:21
Yes, no speed improvements.

But using a VM provides a lot of convenience, as you can copy the VM (its just 1 file) to other computers and run on any computer that has the freeware VMWare Player.  Its also a stable OS enviornment.
Parent - By Gaмßito (****) Date 2009-08-13 03:17
Yes it has very good features and it's easy to install in any computer. It is useful, I know.

Also, I like a lot: ''Microsoft Virtual PC machine''. This is a free program and it is even easier to use. If you don't know it, maybe you can check it.

It is here: http://www.microsoft.com/downloadS/details.aspx?FamilyID=04d26402-3199-48a3-afa2-2dc0b40a73b6&displaylang=en

Regards,
Gaмßito.
Parent - - By blubb (*) Date 2009-08-13 12:31
What about the change from Win32 to Win64?! If I recall it correctly this gives a speed gain of around 1.7 for Rybka. Is there a chance that this outweighs the emulation slowdown?
Parent - - By Gaмßito (****) Date 2009-08-13 22:24
I think the emulation slowdown as for 32/64 bits is almost imperceptible. Maybe between 2 or 3%.

Regards,
Gaмßito.
Parent - - By yanquis1972 (****) Date 2009-08-13 23:21
can you emulate a 64 bit OS in a 32 bit OS??
Parent - By Gaмßito (****) Date 2009-08-14 03:21

> can you emulate a 64 bit OS in a 32 bit OS??


Of course not. I believe the 32-bits emulator only accept OS files for 32-bits. And the 64-bits emulator accept both.

Regards,
Gaмßito.
Parent - By Quapsel (****) Date 2009-08-14 07:37
Thanx for these informations.

> I did some research on VMWare, and VMware claims an overhead as small as 3% to 6% for computationally-intensive applications.


I'm astonished.
If we look at
http://ww1.4hf.de/2008/08/virtualisierung-desktop-virtualisierung-im-vergleich.html
we should assume, that vmware will slowdown the engine strongly.
Here virtualbox (freeware!) could give a significant better performance.

Perhaps it would be very informative, if you (or someone else) could give the Fritzmark-values
- running Fritz on the native machine
- on vmware
- on virtualpc
- on virtualbox (freeware, and runnable from an USB-HD without a dedicated virtualbox-installation http://portable-virtualbox.softonic.de/)
- on Parallels
- (other?)

Quap
(I'll do it for virtualbox)
Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka runs very well in a VMWare Virtual Machine.

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