IRC logs of #boinc for Monday, 2015-01-05

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04:47 <CoderForLife> did you record your ustream session, PovAddict?

04:48 <CoderForLife> oops, not on

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10:43 <PovAddict> &wx buenos aires

10:43 <Romulus> PovAddict: Temperature: 86.2F / 30.1C | Humidity: 83% | Pressure: 29.92in / 1013hPa (Falling) | Conditions: Clear | Wind Direction: North | Wind Speed: 0.0mph / 0.0km/h ; Clear. High:89 F.; Partly Cloudy. Low:77 F.; Thunderstorm. High:86 F.; Chance of a Thunderstorm. Low:75 F.; Chance of a Thunderstorm. High:80 F.; Chance of a Thunderstorm. Low:71 F.;

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12:35 <yoyo[RKN]> &wx sxf

12:35 <Romulus> yoyo[RKN]: Temperature: 39F / 4C | Humidity: 100% | Pressure: 30.33in / 1027hPa (Rising) | Conditions: Drizzle | Wind Direction: NW | Wind Speed: 9mph / 15km/h ; Clear. High:39 F.; Chance of Rain. Low:33 F.; Rain. High:39 F.; Chance of Rain. Low:30 F.; Scattered Clouds. High:37 F.; Partly Cloudy. Low:28 F.;

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12:54 <wdsmia> &wx 50265

12:54 <Romulus> wdsmia: Temperature: 9.3F / -12.6C | Humidity: 83% | Pressure: 30.53in / 1034hPa (Falling) | Conditions: Light Snow | Wind Direction: SW | Wind Speed: 6.3mph / 10.1km/h ; Monday - Mostly cloudy in the morning, then overcast with snow. High of 18F with a windchill as low as -13F. Winds from the SW at 5 to 15 mph. Chance of snow 90%.; Monday Night - Overcast with snow, then a chance of snow after (1 more message)

12:54 <wdsmia> &more

12:54 <Romulus> wdsmia: midnight. Low of 1F. Breezy. Winds from the SSE at 15 to 20 mph with gusts to 30 mph shifting to the North after midnight. Chance of snow 90% with accumulations up to 6 in. possible.; Tuesday - Partly cloudy. High of 16F with a windchill as low as -15F. Breezy. Winds from the NW at 15 to 20 mph.; Winter Weather Advisory for Warren County in effect until 3:00 AM CST on January 06, 2015;

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13:43 <PovAddict> &list later

13:43 <Romulus> PovAddict: Error: 'later' is not a valid plugin.

13:43 <PovAddict> hmph

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18:14 <Alessandro-Barbi> Hello all, i want know if i have to run 10 hours straight the test application CPU MD 9.02 of GPUGRID or it uses chekpoints?

18:52 <desti_T2> dunno

18:52 <desti_T2> just stop it and look where it restarts

18:57 <Alessandro-Barbi> when i stop it it restarts from 0

18:59 <desti_T2> how much was it running?

18:59 <Alessandro-Barbi> less than 2 hours

18:59 <Alessandro-Barbi> two times

18:59 <Alessandro-Barbi> when i shutdown pc

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20:19 <desti_T2> down?

20:20 <PovAddict> I heard only the website is down

20:28 <desti_T2> but how do i now attach a new system?

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22:45 <PovAddict> hi zombie67

22:46 <PovAddict> zombie67: (I don't have an app yet) :)

22:46 <Romulus> Title: Renderfarm@Home (at

22:46 <zombie67> hi

22:49 <zombie67> Nice!  Account created!

22:50 <PovAddict> can you access ?

22:51 <zombie67> 403 Forbidden

22:51 <PovAddict> good

22:51 <zombie67> what platforms will you have apps for?

22:52 <PovAddict> Linux/64bit at first, all later

22:53 <zombie67> okay.

22:53 <zombie67> set up RSS, so I know when you release work.

22:53 <PovAddict> I wish there was a sane interface to create forums

22:53 <zombie67> my machines are running windows VMs right now, and I will have to change them over to linux VMs when there is work.

22:55 <PovAddict> there we go

22:59 <PovAddict> zombie67: forums and news up

23:09 <zombie67> sweet!

23:11 <zombie67> okay to tell teammates about?

23:12 <zombie67> also, what is the RAM requirement going to be?  And it will be a MT app, I assume?

23:16 <PovAddict> it can be MT, first test probably won't be but I'll surely add that very soon

23:16 <PovAddict> 300MB of RAM and ~10 hours on 4 cores got me (unfortunately imgur made it JPEG which loses some of the quality/detail)

23:17 <zombie67> 300mb seems like a low threashold.  But I am no expert.  I assumed it woule require many gb of ram per task.

23:19 <PovAddict> I think it depends on the input file, some images are more complex

23:19 <PovAddict> and it depends *directly* on the size of the final image, which I can tune arbitrarily

23:19 <PovAddict> I once did a render that would have taken a hundred gigs if I didn't split it in parts

23:20 <zombie67> ah, so the massive RAM requiremnt you spoke of earlier, does not apply in a multi-part BOINC scenario.

23:21 <PovAddict> I'll have to investigate if there's a way to split into different-sized parts, so that high RAM clients can get high RAM WUs and low RAM clients can still participate

23:22 <zombie67> MT is cool.  But also hard to manage in a multi-project environment.  It doesn't play well with other CPU tasks or GPU tasks, if you have multiple GPUs.

23:22 <zombie67> so if you can keep it single thread, that would attract more people.

23:23 <PovAddict> well, four-core app using 300MB of RAM, or four one-core apps using 300MB of RAM *each*? that's why MT is an advantage

23:23 <zombie67> 300 mb each is nothing.

23:23 <PovAddict> fine, replace 300MB with 2GB :P

23:24 <zombie67> actually that is still good for me.  I make sure all my crunchers have 2gb per thread.  :P

23:25 <zombie67> but yeah, there becomes a point where MT is more reasonable.  But at 300 mb, even up to 1gb, per thread, single threaded tasks would be easier.  Either way, I will be in.

23:25 <PovAddict> I'll probably need to learn to do MT apps anyway, because the app always uses threads

23:26 <PovAddict> if you tell it to use only one thread, it will create a thread to do the processing and leave the main thread controlling (and using no CPU)

23:26 <PovAddict> and for that I need to make the BOINC API aware of the threading stuff

23:27 <zombie67> okay to tell my teammates?

23:27 <PovAddict> yes

23:27 <zombie67> ok

23:27 <PovAddict> note the server might not be up 24/7

23:27 * PovAddict should rent a VPS

23:28 <PovAddict> there are some *really* cheap ones nowadays

23:28 <zombie67> I will move one VM from win64 to linux64, and attach it.  8 threads, 16gb.  Send test units at sill.

23:29 <PovAddict> are there 32-bit Macs still around?

23:31 <zombie67> nope

23:31 <zombie67> the only 32 bit CPU in a mac was in the fist gen intel macs way back.

23:31 <PovAddict> oh, it only lasted *one* gen?

23:31 <zombie67> and the OS has been 64 bit for line 5 years now

23:32 <zombie67> yeah

23:32 <zombie67> *like

23:32 <PovAddict> ok, one less platform to worry about

23:34 <PovAddict> damn 1.30am

23:34 <PovAddict> GN

23:37 <zombie67> gn

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