[RC5] CUDA for Windows questions

Roderick Fikel rfikel at yahoo.com
Wed May 6 13:13:25 EDT 2009

Thank you all for the help.  I have set up the clients. 

The cpu :  [May 06 17:10:09 UTC] RC5-72: Benchmark for core #10 (GO 2-pipe alt)
                      0.00:00:16.30 [8,008,415 keys/sec]

the gpu client: [May 06 17:11:39 UTC] RC5-72: Benchmark for core #0 (CUDA 1-pipe 64-thd)
                      0.00:00:16.95 [93,170,288 keys/sec]

It is interesting that although the gpu client seems to be running really fast, the cpu clients seem to finish blocks faster.  Is the gpu client cracking larger blocks sizes?


Outward Bound's Motto 
To serve, To strive and Not to yield.

----- Original Message ----
From: SideWinder <sidewinder at kolumbus.fi>
To: D.net Discussion <rc5 at lists.distributed.net>
Sent: Wednesday, May 6, 2009 11:52:53 AM
Subject: Re: [RC5] CUDA for Windows questions

On 6.5.2009 16:19, Roderick Fikel wrote:
> Will installing CUDA drivers for my video card replace the current drivers that shipped with my system  or will they work along side the original drivers?

The CUDA driver works "along side" the DirectX and OpenGL drivers (formerly known as "ForceWare"), but they are packaged in the same installer. The CUDA driver requires support from the other parts of the driver package, so AFAIK it's not possible to use old non-CUDA-aware drivers with the CUDA driver.

So the short answer is yes, the driver package that includes the CUDA driver will replace the drivers that shipped with your system, but on the other hand, the new DirectX and OpenGL drivers will probably be much better anyway.

> Will installing the CUDA drivers make game play less enjoyable or limit the system?

No (assuming you don't run CUDA applications at the same time as playing or otherwise using the system).

> After installing the new drivers will the graphics controlls be replaced?

The driver spesific controlls will be replaced. Whether they will be any or much different than your current controls depends on your current versions.

> Would my wife notice the changes? (LOL)

Most probably yes, if you run the CUDA client all the time with that system. As has been suggested by others, for no usability impact, you should set it up to launch with the screensaver launcher. If you also wish to run the CPU client at the same time as well, you need to add one system environment variable. Instructions are here:

> System specifics
> ASUS GT50vt-x5
> OS Name    Microsoft® Windows Vista™ Home Premium
> Version    6.0.6001 Service Pack 1 Build 6001
> Other OS Description     64
> System Manufacturer    ASUSTeK Computer Inc.
> System Model    G50VT
> System Type    x64-based PC
> Processor    Intel(R) Core(TM)2 Duo CPU     P7450  @ 2.13GHz, 2133 Mhz, 2 Core(s), 2 Logical Processor(s)
> BIOS Version/Date    American Megatrends Inc. 210, 1/8/2009
> SMBIOS Version    2.5
> Locale    United States
> Hardware Abstraction Layer    Version = "6.0.6001.22150"
> Installed Physical Memory (RAM)    4.00 GB
> Total Physical Memory    4.00 GB
> Total Virtual Memory    8.17 GB
> _______________________________________________
> rc5 mailing list
> rc5 at lists.distributed.net
> http://lists.distributed.net/mailman/listinfo/rc5

>------->- SideWinder -<-------<

PGP key ID: 0x77CCE3D6

___Computer Science: solving today's problems tomorrow.


More information about the rc5 mailing list