Releasing Raspberry Pi application
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Profile Kyong
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Message 607 - Posted: 11 Jan 2013, 19:45:07 UTC

New applications for Raspberry Pi has been released. There are some changes in detection of ARM processors in the latest source code so there are two new architectures for Raspberry Pi.

Radim VanĨo (Kyong)

Peter Baetz
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Message 609 - Posted: 12 Jan 2013, 11:48:06 UTC

* My boinc-manager says, that the raspi need over 600 hours for the task, but I have only 10 days = 240 hours to finish it.

* After which time the application writes a breakpoint to the SD-Card? I have restart my pi after 2 hours and now it begin from start. :(

Greetings
Peter

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Message 610 - Posted: 12 Jan 2013, 17:34:16 UTC - in response to Message 609.
Last modified: 12 Jan 2013, 18:24:22 UTC

My boinc-manager says, that the raspi need over 600 hours for the task

Do not pay much attention to this - BOINC often overestimates the 'To completion' time.
The shown 600 hours may be 10 times overestimated (and be in reality 60 hours)
BOINC needs several (5-15) tasks completed before it knows better.

Another Raspberry Pi (check it later when it finishes the task to see the 'Run time'):
http://asteroidsathome.net/boinc/show_host_detail.php?hostid=5293


Checkpoints:
On my computer (AMD Athlon II X3 455 Processor 3.3GHz, Win XP):
http://asteroidsathome.net/boinc/show_host_detail.php?hostid=110

I noticed very long (~15 minutes) startup time (before the first checkpoint) of Asteroids@home tasks (this happens on start/restart of tasks)
Next checkpoints are done in a timely manner (every 1-1.5 minutes)

To see the time of last checkpoint you may:
- in BOINC Manager select the Running task and click [Properties] button:
look for 'CPU time at last checkpoint' and compare with 'CPU time'
- go to <BOINC-Data>\projects\asteroidsathome.net_boinc\ and sort by Date/Time (you can also look in <BOINC-Data>\slots\ for 'period_search_state' files)

I use eFMer BoincTasks (on Win XP):
http://www.efmer.eu/boinc/boinc_tasks/
("The program should run on Windows 2003 / Windows XP / Windows Vista / Windows 7 / Windows 8 as well as on Linux and Mac, with Wine.")

... which have 'Checkpoint' column (shows in red when checkpoint is late)


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Adrian Taylor
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Message 612 - Posted: 13 Jan 2013, 0:07:24 UTC

heres my Raspberry Pi host

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

lets hope it doesn't time out before completion

It would be good to id the machine as a rasberry pi in the stats too, for that added kudos

great stuff folks thanks for providing another interesting boinc project

:-)

Peter Baetz
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Message 615 - Posted: 13 Jan 2013, 8:18:38 UTC - in response to Message 612.

heres my Raspberry Pi host

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

lets hope it doesn't time out before completion
:-)

Your pi runs powerful. How much MHz is it?

Now I have 7.5% and PI runs 11 hours, so I can also hope the WU is ready before the time is out. :)

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Message 616 - Posted: 13 Jan 2013, 12:36:57 UTC - in response to Message 615.
Last modified: 13 Jan 2013, 12:37:09 UTC

its in turbo boost so it max's out at 1000mhz
heres the live system stats from the server
http://93.97.163.97:82/sysinfo/index.php

i think its had about 10-12 hours and is only 0.2 % done !
according to boin_task_state.xml

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Message 619 - Posted: 13 Jan 2013, 14:25:37 UTC

CPU time of one result is about 70 hours on the basic frequency (700 MHz).

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Message 633 - Posted: 14 Jan 2013, 19:18:28 UTC

can someone confirm what this means about my checkpoints ?
it seams to update very infrequently

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Message 642 - Posted: 15 Jan 2013, 9:56:22 UTC - in response to Message 633.

can someone confirm what this means about my checkpoints ?
it seams to update very infrequently

Yes, the picture shows ~1.5 h since last checkpoint.

The checkpoint interval depends on 2 things:
- BOINC setting: 'Tasks checkpoint to disk at most every ... seconds'
- ability of the app:
Apps have to reach certain point in the calculation (depends on the programmer/algorithm of the app) to be able to write intermediate results/checkpoint.
At that 'point in the calculation' the app checks if the above 'at most every ... seconds' has passed and if yes then write intermediate results/checkpoint.

(so on slower computer the second case (app ability) may delay the checkpoint,
e.g. SETI AstroPulse ATI GPU tasks on my computer checkpoint every ~2.5 minutes despite my BOINC setting of 77 s)

Check:
<disk_interval>677</disk_interval>
<disk_interval>77.000000</disk_interval>

in:
global_prefs.xml
global_prefs_override.xml

(mine value is set to 77 s locally which overrides the web setting of 677 s, the default is 60 s)


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Adrian Taylor
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Message 643 - Posted: 15 Jan 2013, 11:48:39 UTC

Thanks for the detailed reply, i understand now

note:
my raspberry pi has completed a unit

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

completed in 51.34 hours :-)

anyone done one faster ?

120 stats points he heh, look out top computer list

Peter Baetz
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Message 650 - Posted: 15 Jan 2013, 18:37:33 UTC - in response to Message 642.

can someone confirm what this means about my checkpoints ?
it seams to update very infrequently

Yes, the picture shows ~1.5 h since last checkpoint.


I think, this is a very long time. It would be better, if the program could be more often make a checkpoint.

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Message 678 - Posted: 16 Jan 2013, 12:45:50 UTC - in response to Message 643.

Thanks for the detailed reply, i understand now

note:
my raspberry pi has completed a unit

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

completed in 51.34 hours :-)

anyone done one faster ?

120 stats points he heh, look out top computer list

This is my host:

http://asteroidsathome.net/boinc/show_host_detail.php?hostid=7663

no OC (700MHz) and Radioactive and QCN clients running on their sensors, it's at 73% afer 2d 10h

Despite the low consumption rasPi not seem to have an efficiency flops / watt interesting. But in the next few months could be interesting to evaluate this:

http://www.gizmag.com/parallella-supercomputing-for-the-masses/24764/

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Message 728 - Posted: 21 Jan 2013, 20:12:27 UTC - in response to Message 678.

Application needs 244.14 MB RAM but only 121.76 MB is available for use.


unfortunately it does not work with the 256MB version :(

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Message 729 - Posted: 22 Jan 2013, 13:02:03 UTC - in response to Message 728.

Application needs 244.14 MB RAM but only 121.76 MB is available for use.


unfortunately it does not work with the 256MB version :(


Have you tried it without X-windows running? That is turn it off via raspi-config, however it means you'll have to run it from a command prompt which you may not want to do.
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Message 730 - Posted: 22 Jan 2013, 17:08:52 UTC - in response to Message 728.


This requirement was supposed to be fixed:
http://asteroidsathome.net/boinc/forum_thread.php?id=11&postid=620#620

(in reality the app uses <10 MB (for me on WinXP, for Dagorath: "The app is using slightly less than 7 MB RAM on both my Linux and Windows hosts"))

I don't know when the "next batch of results" will be sent (reach the top of the 'Tasks ready to send' queue?)
http://asteroidsathome.net/boinc/server_status.php


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Message 731 - Posted: 22 Jan 2013, 17:19:17 UTC
Last modified: 22 Jan 2013, 17:21:34 UTC

It is already fixed. The new batch has 64 MB set as minimum, but there are still some WUs from previous batch in the beggining of the que so about tommorov the queue should containts only WUs with new settings.

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Message 898 - Posted: 19 Feb 2013, 13:08:39 UTC - in response to Message 731.

Kyong, do you have plan to release application for android ?

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Message 906 - Posted: 20 Feb 2013, 12:12:32 UTC

Yes, I have, the application for Android is almost ready.

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Message 947 - Posted: 7 Mar 2013, 21:31:02 UTC - in response to Message 906.

Yes, I have, the application for Android is almost ready.

Any progress on this? I'm running a few projects on my phone and would love to add another. :-)
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Message 948 - Posted: 8 Mar 2013, 9:12:42 UTC

I am going to test the final version today, if anything is good I will release it until sunday.

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