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Posts by Gavin Shaw

21) Message boards : Cafe MilkyWay : No forum is complete without funny Cat pictures (other funny pics allowed too) (Message 12328)
Posted 22 Feb 2009 by ProfileGavin Shaw
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22) Message boards : Number crunching : nooby with a quad core (Message 11134)
Posted 17 Feb 2009 by ProfileGavin Shaw
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According to AMD spec docs, Phenom II (2) offers SSE, SSE2, SSE3, SSE4a.

So the best opt app would be the SSE3 version for 32 bit Windows...


What would be the best version for 64 bit Windows with the same cpu?


Probably the SSE3 Win 32bit build at ZSlip. To the best of my knowledge the only 64bit opt. app for Win is actually a GPU (Graphical Processing Unit) based one for certain ATI video cards.

I wish I had an appropriate ATI card... *drool*

But concerning the 'normal' app for CPUs maybe you can also crunch with the SSSE3 opti app. My C2D lappy (Win XP 64-bit) is capable of SSE3 and SSSE3 for example.
But don't trust what the BOINC Manager tells you, if I had believed in that I'd be still crunching with SSE2 only! *LOL*


The AMD Phenom II or Phenom 2 only has SSE, SSE2, SSE3 & SSE4a. They do not support SSSE3 or SSE4.1/4.2. Those are Intel chips only. My C2D systems run SSSE3 but the AMD Phenom II that was being asked about only has up to the SSE3 option.

This information came direct for the technical documents at AMD's website. Not Boinc or the OS.
23) Message boards : Number crunching : nooby with a quad core (Message 11119)
Posted 17 Feb 2009 by ProfileGavin Shaw
Post:
According to AMD spec docs, Phenom II (2) offers SSE, SSE2, SSE3, SSE4a.

So the best opt app would be the SSE3 version for 32 bit Windows...


What would be the best version for 64 bit Windows with the same cpu?


Probably the SSE3 Win 32bit build at ZSlip. To the best of my knowledge the only 64bit opt. app for Win is actually a GPU (Graphical Processing Unit) based one for certain ATI video cards.
24) Message boards : Number crunching : 3rd.in - optimized apps (Message 11092)
Posted 17 Feb 2009 by ProfileGavin Shaw
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Well it appears to display more info in the stderr output. Identifies CPU and processing time(s).

It appears to work. On your notebook one can see such a case of a background process eating quite some cycles during the computation
WU completed. It took 515.578 seconds CPU time and 581.424 seconds wall clock time @ 1.995 GHz.



Well the notebook is also my primary work computer so I use it a lot for my research etc. And the virus scanner at times can take a bit of processing, especially when it is trying to update its AV files...

25) Message boards : Number crunching : 3rd.in - optimized apps (Message 11083)
Posted 17 Feb 2009 by ProfileGavin Shaw
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I have put together new versions of the windows apps compiled for specific instruction sets (x87/SSE/2/3/4.1/4.2/SSSE3) with the version number bumped to 0.19. The computation is exactly the same as before (the stock app had to move ;) and so is the performance. But I've put some additional features in:

  • user configurable version number in the output file (will explain how it works if it is needed)
  • diagnostic information in stderr.txt (visible under task details when instapurge gets turned off) like

    • CPU detection
    • output of the crunch time (both CPU time and wall clock time) to recognize demanding background processes when comparing the times


Hope it works like intended.



Well it appears to display more info in the stderr output. Identifies CPU and processing time(s).

Thanks.
26) Message boards : Number crunching : v0.18/v0.19 issues here (Message 11015)
Posted 16 Feb 2009 by ProfileGavin Shaw
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Just added my wife's laptop back to MW and it is using the stock MW 0.19 Win32 app.

First unit took 21:17 and granted 31.56 credits. This is running on a AMD Mobile Sempron 3100+.
27) Message boards : Number crunching : nooby with a quad core (Message 10635)
Posted 14 Feb 2009 by ProfileGavin Shaw
Post:
According to AMD spec docs, Phenom II (2) offers SSE, SSE2, SSE3, SSE4a.

So the best opt app would be the SSE3 version for 32 bit Windows...
28) Message boards : Number crunching : Insta-Purge (Message 10357)
Posted 12 Feb 2009 by ProfileGavin Shaw
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Seems like my laptop is somehow involved in this.

Laptop has many units assigned to it that have not been reported back, but they are not on my system. They will time out and expire. Wonder what is happening here?

I noticed that it seems to happen when I am asleep in the early morning.
29) Message boards : Number crunching : credit comparison to other projects (Message 10283)
Posted 11 Feb 2009 by ProfileGavin Shaw
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Stevea,

Thanks for the list. I had always wondered how all the projects compared to Seti. Of course I could have gone looking at BoincStats but I guess I'm just a little bit lazy.

Though I would have thought Rosetta was lower than 0.7 or at least that is what it feels like when I crunch for it.

But you have a point. High projects are hounded about lowering to be roughly in line, but I never here of low paying projects being 'hounded' or encouraged to raise their level to come in line...
30) Message boards : Number crunching : Is anyone glad with the project? (Message 10275)
Posted 10 Feb 2009 by ProfileGavin Shaw
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I think it got up to 40 degrees F here (4 C for the rest of the world).


Ha ha ha. Our overnight temp tonight is forecast at 21C (70F)! A high of 28C (82F) for tomorrow. (that's in Cape Town, most of the rest of South Africa is rainy. Wish we could send the rain to Australia.

Just an on-topic comment:
Seems to be working fine here, although the later versions of the app don't work on Win98. There go my oldest hosts :(

Edit: Have started a thread about Win98.

Regards
Rod


And southern Australia would take your rain gladly. Northern Queensland is flooded at the moment and doesn't need it. Brisbane could do with some too.
31) Message boards : Number crunching : Is anyone glad with the project? (Message 10260)
Posted 10 Feb 2009 by ProfileGavin Shaw
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Don't complain very often about much. You can color me happy with the project here as well. Couple of minor disagreements on credits, but that's small in comparison to the troubles Dave and Travis have been haivng lately.


*Travis and Dave* Thanks for the lines of communication when its possible letting us know what is happening and what you are trying to do to resolve it. Appreciate all your hard work and hope it gets trouble free again soon so you both get some well deserved rest. (maybe even a bit of snow boarding too)




Oh I'm hoping things are good :) Unfortunately, we've been having a bit of heat wave lately :( We could really use another snow storm :P

Things seem to be running smoothly and we're actually crunching workunits faster than before the crash! We were sitting around 4 a second before, now we're almost at 5 :)


Though I reckon your heatwave is no where near as bad as the one in Southern Australia. It is downright scary there at the moment.

Good news with the faster crunching.
32) Message boards : Cafe MilkyWay : Tragedy Strikes... (Message 10251)
Posted 10 Feb 2009 by ProfileGavin Shaw
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A few more images from the Courier Mail.








33) Message boards : Number crunching : Modified app for Milkyway_17 (Message 10214)
Posted 9 Feb 2009 by ProfileGavin Shaw
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From my memory the 0.17 version was created due to a signature problem with the 0.16 Windows app. Travis recompiled and 0.17 was born. To the best of my knowledge there is no real code difference between 0.16 & 0.17.

0.18 code is under testing and has not yet become mainstream.

Opt apps based on 0.16 code are fine provided they are compiled using the previously mentioned directives (to include an app name and version) and are returning valid results.
34) Message boards : Number crunching : new WUs (Message 9819)
Posted 7 Feb 2009 by ProfileGavin Shaw
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What you are seeing there is what SETI calls "radar interference".

I think that's what happened to our database...

You had radar interference or an 80' satellite dish up your a$$?


Imagine if I had an 80' dish.

Then imagine what the neighbours would think if I put it in the backyard...
35) Message boards : Number crunching : New faster application? (Message 9716)
Posted 5 Feb 2009 by ProfileGavin Shaw
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I tried the zslip optimized application in my AMD 5200 X2 - Windows XP 64b but all the Wu crashed.
I'm asking if those applications are accepted by the project administrator !!!
Now I discard those application and return to a normal application.

http://www.zslip.com/


Did you use the correct version? You need to use CPU-Z to find out what SSE version your processor supports and get that one. Then you have to stop Boinc and shut it down completely (so no services are running). Then install the app_info.xml and exe file in the milkyway projects folder and then start Boinc back up.

If you have any work units from the stock version and the stock version is higher than the app version then they will be trashed. If stock version is 0.17 and opt app version is 0.16 then Boinc will say that it can not process those units as the opt app is an 'older' version. They will be lost. Then try getting new work and everything should be good.

I have been using a opt app for a while and have had no trouble at all. If it is returning bad results then no one has told me.
36) Message boards : Number crunching : credit comparison to other projects (Message 9603)
Posted 3 Feb 2009 by ProfileGavin Shaw
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Arion.

No problems.

I also have a tendency to pick projects that I deem to be worthwhile in my view. I started with Seti but have moved away for reasons. I do Rosetta because I believe it has value. I do MW because it aligns with my interest in space/astronomy. I have one machine doing some SIMAP because I see that SIMAP has value.

At least my wife lets me run Boinc without complaint. SHe even lets me run it on her laptop and will let me run it on the system the uni will assign her when she starts her PhD.
37) Message boards : Application Code Discussion : source v0.16 :P (Message 9580)
Posted 2 Feb 2009 by ProfileGavin Shaw
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I use VS2008 (bad decision, should've stayed with 2005). I can give you the sln files if you wish but i doubt you'll be able to use them in 2005.


I use VS2008 and have the evaluation version of the Intel Compiler (looking for somewhere is Aus that sells the student version so I can get it much cheaper). So if you wish, I can use the sln file(s). Put them in the code release or mail them to me (you have my email in your database :)

Thanks.
38) Message boards : Number crunching : No work being D/Led & no warning messages (Message 9536)
Posted 1 Feb 2009 by ProfileGavin Shaw
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Two of my machines are having this problem. They are both C2D systems and run Boinc 5.10.45. This problem only started a few days ago.

Interestingly, my third C2D system, which is using Boinc 5.4.11 is not having this problem and readily asks for more work nearly every minute as it tries to fill its cache.
39) Message boards : Number crunching : Is anyone glad with the project? (Message 9421)
Posted 30 Jan 2009 by ProfileGavin Shaw
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Well... Please make your complains here...


I think Logan hates us :(


The only things what I hate are the constant changes of criteria to stablish what are the parameters of the project (credits, WUs length, limits...)

Best regards.



Well, the project is still " Alpha ", and you have to deal with all kinds of
changes being implemented........

One thing I don`t understand, is the " no opt. app. for Windows " issue, and
therefore I ceased crunching this project, although I`m really interested
in the science of MW.

Best regards

Kurt


There are some working on that. I had a go at compiling for Win. I have got stuck but I should be able to work it out with enough time.

Unfortunately real_life@home and life@work are very busy and demanding. My wife is busy writing her master's thesis and that is sucking a lot of her time away. I'm reading it when she gives me a copy, working on my PhD (programming, experiment set up and result processing being the current major tasks) and writing my own research paper. Then there are all the chores in life to do. And so on.

When I get some free time and my brain isn't completely fried out (I think I blew a couple of fuses in it) then I have another go at compiling Win apps.
40) Message boards : Number crunching : Vote for the MilkyWay favicon! (Message 9399)
Posted 30 Jan 2009 by ProfileGavin Shaw
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Yeah, the icon doesn't show for me either.

I'm using Firefox (3.0.5) on Win XP. Maybe I have to close the browser down and come back to force it to update?


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