[RC5] Windows Stream client doesnt like the normal client

Jonathan Dixon jonathandixon3 at gmail.com
Tue May 11 10:57:19 EDT 2010


I ran into the same problem running the CUDA client + normal client.  I have
a GeForce GTX260 and Core i7.  I noticed that running the normal client
would slow down the CUDA client enough that it wasn't worth running the
normal client at all, but I hated to let a Core i7 sit virtually idle.  I
had tried to increase the priority of the GPU client, but it didn't seem to
help any.  The solution I came up with was to manually set the core count on
the normal client to one less than the maximum number of threads on the
computer.  This prevented processes from moving from core to core, which
slows them down a little, and also should prevent competition between the
clients because there is always a free core to keep feeding the GPU.

I also agree with Waldo on the hyper-threading.  HT is great for single core
CPUs and helps them multi-task better, but it has a negligible effect when
the computer is already good at multi-tasking due to the number of cores.
Given that a little efficiency is lost when the computer moves processes to
and from a specific core, it is counter productive to run two jobs on the
same core that accomplish the same task as does HT.  HT is designed to
reduce the effect, but if the computer is built to run RC5, it would be
better just to not have the effect at all.  If RC5 is set to auto-detect
thread count and HT is enabled, it will automatically assign two processes
to every core.  Thus HT would seem to degrade performance by inducing
exactly what it is supposed to solve.  I don't think it is effective to
leave HT running and manually set the cores to half because the the core
time has already been split and you are deciding to only use half of it.
Yes, I know. an 8 threaded computer just isn't as cool as a 16 threaded
computer.

On Tue, May 11, 2010 at 12:57 AM, <rc5-request at lists.distributed.net> wrote:

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> Today's Topics:
>
>   1.  Windows Stream client doesnt like the normal client (Jeff Mohler)
>   2. Re: Windows Stream client doesnt like the normal client
>      (Korey Nixon)
>   3. Re: Windows Stream client doesnt like the normal client
>      (waldo kitty)
>   4. PS3 Linux EOL (Lars Sahlmann)
>   5. distributed.net proxy network status RC5 (Lars Sahlmann)
>   6. dnetc vs Win 7 - install problems (Kevin McCoy)
>   7. Re: dnetc vs Win 7 - install problems (Chris Jones)
>   8. Re: dnetc vs Win 7 - install problems (Kevin McCoy)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 3 Mar 2010 16:54:08 -0800
> From: Jeff Mohler <speedtoys.racing at gmail.com>
> Subject: [RC5]  Windows Stream client doesnt like the normal client
> To: "D.net Discussion" <rc5 at lists.distributed.net>
> Message-ID:
>        <a969fbd11003031654i4ef93929oc38c9d8c075975b4 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Ran into another issue.
>
> The stream client starts to suck wind when the normal client is running on
> my 16 threads of core on the Intel CPUs...
>
> Why is that?
>
>
> And lastly..these eight cores (16 with hyperthreading) of 3.3ghz Nehalems,
> perform RC5 work slower, than my 8 non hyperthreaded 3.0Ghz Xeons..why is
> that?  I would have expected some speed increase.
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> ------------------------------
>
> Message: 2
> Date: Wed, 03 Mar 2010 21:09:44 -0400
> From: Korey Nixon <korey.nixon at gmail.com>
> Subject: Re: [RC5] Windows Stream client doesnt like the normal client
> To: "D.net Discussion" <rc5 at lists.distributed.net>
> Message-ID: <4B8F0858.6060409 at gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
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> ------------------------------
>
> Message: 3
> Date: Wed, 03 Mar 2010 21:21:36 -0500
> From: waldo kitty <wkitty42 at windstream.net>
> Subject: Re: [RC5] Windows Stream client doesnt like the normal client
> To: rc5 at lists.distributed.net
> Message-ID: <4B8F1930.3010907 at windstream.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> On 3/3/2010 19:54, Jeff Mohler wrote:
> > And lastly..these eight cores (16 with hyperthreading) of 3.3ghz
> > Nehalems, perform RC5 work slower, than my 8 non hyperthreaded 3.0Ghz
> > Xeons..why is that?  I would have expected some speed increase.
>
> try turning off the hyperthreading and see what happens... CPU chips can
> only do
> so much... hyperthreading is not all it is cut out to be ;)
>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 29 Mar 2010 15:35:26 +0200
> From: "Lars Sahlmann" <lanisa at gmx.de>
> Subject: [RC5] PS3 Linux EOL
> To: rc5 at lists.distributed.net
> Message-ID: <20100329133526.166730 at gmx.net>
> Content-Type: text/plain; charset="utf-8"
>
> I hope sony just made an april fools joke on that.
>
> http://blog.eu.playstation.com/
>
> PS3 Firmware 3.21 will be available this Thursday. It will disable the
> ?Install Other OS? feature that was available on the PS3 systems prior to
> the current slimmer models, launched in September 2009. This feature enabled
> users to install an operating system, but due to security concerns, we?re
> now removing this feature.
>
> For most of you, this won?t have any impact on how you use your PS3. If you
> are one of the few who use the ?Other OS? feature, or if you belong to an
> organisation that does, then you can choose not to upgrade your system.
>
> -----------------
>
> ok at least you can choose not to install this update.
> --
> GMX DSL: Internet, Telefon und Entertainment f?r nur 19,99 EUR/mtl.!
> http://portal.gmx.net/de/go/dsl02
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 24 Apr 2010 09:08:19 +0200
> From: Lars Sahlmann <lanisa at gmx.de>
> Subject: [RC5] distributed.net proxy network status RC5
> To: rc5 at lists.distributed.net
> Message-ID: <4BD298E3.2070502 at gmx.de>
> Content-Type: text/plain; charset="iso-8859-15"
>
> Hi,
>
> looks like the proxies have a loot stuck WUs.
>
> proxy1.bris.qld.au
> <
> http://n0cgi.distributed.net/cgi/mapping.cgi?host=proxy1.bris.qld.au.proxy.distributed.net
> >
>        kamy    0.8m    349     3.4mo   34,811.00       4999707/3110334
> proxy1.aar.dk
> <
> http://n0cgi.distributed.net/cgi/mapping.cgi?host=proxy1.aar.dk.proxy.distributed.net
> >
>        monsted         10.4m   349     2.8mo   34,910.30
> 2000191/712354
>
>
>
>
>
>
>
>
> proxy1.rwc.ca.us
> <
> http://n0cgi.distributed.net/cgi/mapping.cgi?host=proxy1.rwc.ca.us.proxy.distributed.net
> >
>        cdy     0.8m    349     1.9mo   203,315.00      2989914/946575
>
>
>
>
>
>
>
>
> proxy2.rwc.ca.us
> <
> http://n0cgi.distributed.net/cgi/mapping.cgi?host=proxy2.rwc.ca.us.proxy.distributed.net
> >
>        bang    13.5m   349     1.5w    150,928.30      4999963/655993
>
>
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> ------------------------------
>
> Message: 6
> Date: Mon, 10 May 2010 18:06:30 -0700
> From: Kevin McCoy <kgmccoy at idk-inc.com>
> Subject: [RC5] dnetc vs Win 7 - install problems
> To: "D.net Discussion" <rc5 at lists.distributed.net>
> Message-ID: <4BE8AD96.8020104 at idk-inc.com>
> Content-Type: text/plain; charset=ISO-8859-15; format=flowed
>
> I am having problems with workstations that have been upgraded from XP
> to Win7 Professional, 32-bit.. Does anyone know if there are any dnetc
> client issues with this platform?
>
> I am trying to install the client as a service. Normally I install
> manually using the -install parameter in XP, but now dnetc.exe complains
> about access-denied problems and quits. At the time I was logged in as
> domain admin, so I don't think there should be any access issues.
>
> Are there any special INI settings I need to use to force the client to
> store its files somewhere besides the EXE directory? Is the client smart
> enough to store its temp and log files in the app data directory on
> Vista/Win 7?
>
> Any help would be greatly appreciated!
>
> Kevin G. McCoy
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 11 May 2010 12:17:12 +1000
> From: Chris Jones <chrisj at distributed.net>
> Subject: Re: [RC5] dnetc vs Win 7 - install problems
> To: "D.net Discussion" <rc5 at lists.distributed.net>
> Message-ID: <155d73873470e58626a3c7a6beafc60a at aprole.com>
> Content-Type: text/plain; charset=UTF-8
>
> Hi Kevin,
>
> You may need to run that command from an elevated command prompt
> (Right-Click Command Prompt -> Run as Administrator).  UAC in Windows 7
> means that even domain admins aren't an administrator by default, and you
> need admin rights to install a service.
>
> Regards,
>
> Chris
>
> On Mon, 10 May 2010 18:06:30 -0700, Kevin McCoy <kgmccoy at idk-inc.com>
> wrote:
> > I am having problems with workstations that have been upgraded from XP
> > to Win7 Professional, 32-bit.. Does anyone know if there are any dnetc
> > client issues with this platform?
> >
> > I am trying to install the client as a service. Normally I install
> > manually using the -install parameter in XP, but now dnetc.exe complains
>
> > about access-denied problems and quits. At the time I was logged in as
> > domain admin, so I don't think there should be any access issues.
> >
> > Are there any special INI settings I need to use to force the client to
> > store its files somewhere besides the EXE directory? Is the client smart
>
> > enough to store its temp and log files in the app data directory on
> > Vista/Win 7?
> >
> > Any help would be greatly appreciated!
> >
> > Kevin G. McCoy
> > _______________________________________________
> > rc5 mailing list
> > rc5 at lists.distributed.net
> > http://lists.distributed.net/mailman/listinfo/rc5
>
>
> ------------------------------
>
> Message: 8
> Date: Mon, 10 May 2010 21:57:03 -0700
> From: Kevin McCoy <kgmccoy at idk-inc.com>
> Subject: Re: [RC5] dnetc vs Win 7 - install problems
> To: "D.net Discussion" <rc5 at lists.distributed.net>
> Message-ID: <4BE8E39F.50400 at idk-inc.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 5/10/2010 7:17 PM, Chris Jones wrote:
> > Hi Kevin,
> >
> > You may need to run that command from an elevated command prompt
> > (Right-Click Command Prompt ->  Run as Administrator).  UAC in Windows 7
> > means that even domain admins aren't an administrator by default, and you
> > need admin rights to install a service.
> >
>
> That makes sense. I successfully installed the dnet client on a 64 bit
> Win7 box (mine). It probably worked because I am admin on my own box,
> and domain admin on everyone Else's.
>
> I'll try remoting in as the machine admin tomorrow and see if I can't
> complete the installs. I have a lot of machines to do!
>
> Best regards,
>
> Kevin G. McCoy
>
>
> ------------------------------
>
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> End of rc5 Digest, Vol 68, Issue 1
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