[RC5] Windows Stream client doesnt like the normal client

Gerald Richter glassman1 at neonshadow.net
Thu May 13 18:58:40 EDT 2010


The stream and cuda clients both require 1 cpu thread free to feed them 
in order to maintain top speed. I run the CPU client configured with 
real CPU cores -1 parallel to the stream and cuda clients in my 
environments.

Jonathan Dixon wrote:
> 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 
> <mailto: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 <http://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
>     <mailto:speedtoys.racing at gmail.com>>
>     Subject: [RC5]  Windows Stream client doesnt like the normal client
>     To: "D.net Discussion" <rc5 at lists.distributed.net
>     <mailto:rc5 at lists.distributed.net>>
>     Message-ID:
>            <a969fbd11003031654i4ef93929oc38c9d8c075975b4 at mail.gmail.com
>     <mailto: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 <mailto: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
>     <mailto:rc5 at lists.distributed.net>>
>     Message-ID: <4B8F0858.6060409 at gmail.com
>     <mailto: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
>     <mailto:wkitty42 at windstream.net>>
>     Subject: Re: [RC5] Windows Stream client doesnt like the normal client
>     To: rc5 at lists.distributed.net <mailto:rc5 at lists.distributed.net>
>     Message-ID: <4B8F1930.3010907 at windstream.net
>     <mailto: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 <mailto:lanisa at gmx.de>>
>     Subject: [RC5] PS3 Linux EOL
>     To: rc5 at lists.distributed.net <mailto:rc5 at lists.distributed.net>
>     Message-ID: <20100329133526.166730 at gmx.net
>     <mailto: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 <mailto:lanisa at gmx.de>>
>     Subject: [RC5] distributed.net <http://distributed.net> proxy
>     network status RC5
>     To: rc5 at lists.distributed.net <mailto:rc5 at lists.distributed.net>
>     Message-ID: <4BD298E3.2070502 at gmx.de <mailto: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://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://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://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://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 <mailto:kgmccoy at idk-inc.com>>
>     Subject: [RC5] dnetc vs Win 7 - install problems
>     To: "D.net Discussion" <rc5 at lists.distributed.net
>     <mailto:rc5 at lists.distributed.net>>
>     Message-ID: <4BE8AD96.8020104 at idk-inc.com
>     <mailto: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
>     <mailto:chrisj at distributed.net>>
>     Subject: Re: [RC5] dnetc vs Win 7 - install problems
>     To: "D.net Discussion" <rc5 at lists.distributed.net
>     <mailto:rc5 at lists.distributed.net>>
>     Message-ID: <155d73873470e58626a3c7a6beafc60a at aprole.com
>     <mailto: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
>     <mailto: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 <mailto: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 <mailto:kgmccoy at idk-inc.com>>
>     Subject: Re: [RC5] dnetc vs Win 7 - install problems
>     To: "D.net Discussion" <rc5 at lists.distributed.net
>     <mailto:rc5 at lists.distributed.net>>
>     Message-ID: <4BE8E39F.50400 at idk-inc.com
>     <mailto: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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>     rc5 at lists.distributed.net <mailto:rc5 at lists.distributed.net>
>     http://lists.distributed.net/mailman/listinfo/rc5
> 
> 
>     End of rc5 Digest, Vol 68, Issue 1
>     **********************************
> 
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