what will you do with the spare?

Development machine or maybe another cruncher :-)

@Kyong, did you get the 512Mb or a 256Mb one?

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BOINC blog

seeing he ordered it in August I am guessing 256mb

I thought about 256 MB too but it is 512 MB version so I am glad for it.

Well thats good. Anyway I thought you would never receive it. By the way my previous unanswered question what are you going to do with the second board?

I wrote I would use it for something. Not decided for what but there are many possibilites. One for development and the other... I will see.

It seems from the latest image on raspberrypi.org/downloads dated 16th of December that you can get the BOINC client and manager directly from the repo. The process to write the image onto the SD card is described on there.

Once you've got your image on the SD card boot up your Pi with it. Go through the config (raspi-config) and get yourself to a command prompt. Type:

sudo apt-get boinc-client
sudo apt-get boinc-manager

That's it you are updated and should now be able to attach to various projects using the 7.0.27 that you just got from the repo. Unfortunately it doesn't include this one yet, but I am sure Kyong is on the job :-)

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BOINC blog

I have already working application for Raspberry Pi now. Now I am just testing it with BOINC if anything is working. But there is a question if to release it. On the basic frequency of 700 MHz it has 24.873 % completed with time 17:31:40. So it seems that the computation will take about 85 hours.

I have already working application for Raspberry Pi now. Now I am just testing it with BOINC if anything is working. But there is a question if to release it. On the basic frequency of 700 MHz it has 24.873 % completed with time 17:31:40. So it seems that the computation will take about 85 hours.

Well we didn't expect it would be fast. My i7's are doing a work unit in around 2 hours 20 minutes so it's only about 40 times slower :(

Maybe it's not using its capabilities, or maybe it is but it's so slow anyway. Does the science app use floating point or integer maths? You have used whatever compiler flag for the ARM hard float haven't you?

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BOINC blog

It uses floating point math. The computation time took 76 hours. But I will wait with releasing, in the latest changelog of BOINC source there is a new detection of ARM procesors so I am going to compile BOINC client from the source and test it. It is possible that it will detect the Raspberry Pi platform differently than now it does.

I have released application for Raspberry Pi for Raspian so you can test it. You can notice that there are two versions, arm and armv6l. That is the problem I had written before. BOINC client in the repositories (7.0.27) detect the platform as arm-unknown-linux-gnueabihf but in the latest source code there is changed detection for ARM processors so I compiled it and run and discovered that it is armv6l-unknown-linux-gnueabihf (7.1.0). I have to keep track the latest changes in source code because I think that in the future there can be detection for Raspberry so the architecture will be changed again.

I have released application for Raspberry Pi for Raspian so you can test it. You can notice that there are two versions, arm and armv6l. That is the problem I had written before. BOINC client in the repositories (7.0.27) detect the platform as arm-unknown-linux-gnueabihf but in the latest source code there is changed detection for ARM processors so I compiled it and run and discovered that it is armv6l-unknown-linux-gnueabihf (7.1.0). I have to keep track the latest changes in source code because I think that in the future there can be detection for Raspberry so the architecture will be changed again.

Hi Kyong,

Thanks for this. The first Pi I ordered back in August 2012 turned up this week. I have now got it crunching away. Hopefully it won't take 76 hours. I think I will do a mild overclock on it to see how it goes. I have BOINC 7.0.27 on it at the moment.

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BOINC blog

it seams the raspberry pi client works fine

mine just completed its first unit in 51.3 hours

overclocked to 1000mhz


anyone done one faster ?

http://asteroidsathome.net/boinc/results.php?hostid=7458

I done one in 50 hours overclocked to 1300 Mhz. Sorry this is a past WU and has been deleted from the server. Sorry! But the name I believe is ps_127145c_9024_223

The first Pi I ordered back in August 2012 turned up this week. I have now got it crunching away. Hopefully it won't take 76 hours. I think I will do a mild overclock on it to see how it goes. I have BOINC 7.0.27 on it at the moment.

First work unit took 76 hours with overclock set to modest.

I have another one cooking at the moment with overclock set to medium this time, its about 1/3rd of the way through after 24 hours. Given it was 45 degrees here today (and I left the Pi running) I don't think I will take the overclock up much more.

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BOINC blog

my best is 49.6 hrs

overclocked to 1023 mhz

http://asteroidsathome.net/boinc/results.php?hostid=7458

Raspi @ 700/250/400 MHZ @ 1,2V -> 76,8 hours
Raspi @ 1000/500/600 MHZ ; 1,35V ; force_turbo; 31° C coretemp -> 44,5 hours

http://asteroidsathome.net/boinc/results.php?hostid=11261

There are several ARM ABIs out there. Would it be possible to build the application for arm-unknown-linux-gnueabi as well, perhaps targeting a common denominator like the ARM V5 (I guess that it doesn't support hardware FP though?

TIA

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There are several ARM ABIs out there. Would it be possible to build the application for arm-unknown-linux-gnueabi as well, perhaps targeting a common denominator like the ARM V5 (I guess that it doesn't support hardware FP though?

Hello?

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What devices are ARM v5? There are currently arm-unknown-linux-gnueabihf and armv6l-unknown-linux-gnueabihf applications. But I don't know which other devices have armv5.

What devices are ARM v5? There are currently arm-unknown-linux-gnueabihf and armv6l-unknown-linux-gnueabihf applications. But I don't know which other devices have armv5.

I have a NAS that uses an ARMv5. Since it's a NAS, it has no need of hardware FP, so its triple is similar to these, arm-unknown-linux-gnueabi, and requires applications to be built without hardware FP, but with software FP.

Surely, there is a performance hit (1/3 of the performance), but such devices tend to have higher clocks and to not bother so much about power management (e.g., ARMv5 arm-unknown-linux-gnueabi vs. ARMv6 arm-unknown-linux-gnueabihf). Yet, it's still capable of crunching numbers at the same speed as the typical PC when BOINC started and is comparable to a lowly Intel Atom.

Thanks.

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