Welcome to MilkyWay@home

Posts by hoarfrost

1) Message boards : Number crunching : Donating to Milkyway@Home (Message 50332)
Posted 21 Jul 2011 by hoarfrost
Post:
I like this project. My $5 donation smaller than $25, but (I think) better than 0.
:)

I believe in MilkyWay@Home.
2) Message boards : News : ps_separation_17_test (Message 49737)
Posted 29 Jun 2011 by hoarfrost
Post:
Hello!

Have a computation errors and errors of verification with my hosts 103082 (Radeon HD 4890) and 215277 (Radeon HD 4850).
3) Message boards : News : Separation updated to 0.82 (Message 49256)
Posted 13 Jun 2011 by hoarfrost
Post:
With this app_info.xml computation runs fine. Thank you!
<app_info>
<app>
<name>milkyway</name>
</app>
<file_info>
<name>milkyway_separation_0.82_windows_intelx86__ati14.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>milkyway</app_name>
<version_num>82</version_num>
<plan_class>ati14</plan_class>
<flops>1.0e11</flops>
<avg_ncpus>0.05</avg_ncpus>
<max_ncpus>1</max_ncpus>
<coproc>
<type>ATI</type>
<count>0.5</count>
</coproc>
<cmdline>--gpu-target-frequency 120</cmdline>
<file_ref>
<file_name>milkyway_separation_0.82_windows_intelx86__ati14.exe</file_name>
<main_program/>
</file_ref>
</app_version>
</app_info>


4) Message boards : News : Separation updated to 0.80 (Message 49235)
Posted 13 Jun 2011 by hoarfrost
Post:
Hello!

With app_info.xml placed below, my computer became a computation errors generator:
<app_info>
<app>
<name>milkyway</name>
</app>
<file_info>
<name>milkyway_separation_0.80_windows_intelx86__ati14.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>milkyway</app_name>
<version_num>80</version_num>
<plan_class>ati14</plan_class>
<flops>1.0e11</flops>
<avg_ncpus>0.05</avg_ncpus>
<max_ncpus>1</max_ncpus>
<coproc>
<type>ATI</type>
<count>0.5</count>
</coproc>
<cmdline>--gpu-target-frequency 120</cmdline>
<file_ref>
<file_name>milkyway_separation_0.80_windows_intelx86__ati14.exe</file_name>
<main_program/>
</file_ref>
</app_version>
</app_info>


When I remove <cmdline> tags computations run normally, but GUI works slow...
5) Message boards : Number crunching : Validation Error (Message 49192)
Posted 10 Jun 2011 by hoarfrost
Post:
Hello!

Sometimes I have results like 46282821 - downloaded and computed normally, not invalid, but not validated.
Why? :)

Happy crunching!
6) Message boards : Number crunching : super charged? (Message 43686)
Posted 10 Nov 2010 by hoarfrost
Post:
All WU's computed as usual. All WU's, that displayed in hosts tasks, take a normal Granted Credit. But Granted Credit for user grows too fast.
7) Message boards : Number crunching : Orphaned tasks (Message 42287)
Posted 21 Sep 2010 by hoarfrost
Post:
Hello!

Project administrators, my host 215277 have a numerous tasks, received before 21 Sep 2010 2:40:00 UTC, that never been computed, because my host did not know about it's. Please mark all WU's older than noted date as 'No reply', or 'Detached'.

Thank you!
8) Message boards : Number crunching : Strange Message (Message 42074)
Posted 12 Sep 2010 by hoarfrost
Post:
+1
9) Message boards : Number crunching : Aaargh! Server out of new work! (Message 40938)
Posted 15 Jul 2010 by hoarfrost
Post:
Zero work again.
10) Message boards : Number crunching : No New Work (Message 40716)
Posted 28 Jun 2010 by hoarfrost
Post:
Message from server: (Project has no jobs available)
11) Message boards : Number crunching : Aaargh! Server out of new work! (Message 39492)
Posted 7 May 2010 by hoarfrost
Post:
+1
12) Message boards : News : testing validator for new application (Message 38953)
Posted 21 Apr 2010 by hoarfrost
Post:
Hello! :-)

Host 103082.

21/04/2010 11:31:57 Milkyway@home Sending scheduler request: To fetch work.
21/04/2010 11:31:57 Milkyway@home Requesting new tasks for GPU
21/04/2010 11:32:02 Milkyway@home Scheduler request completed: got 0 new tasks
21/04/2010 11:32:02 Milkyway@home Message from server: No work sent
21/04/2010 11:32:02 Milkyway@home Message from server: Your app_info.xml file doesn't have a version of MilkyWay@Home Version 3.
13) Message boards : Number crunching : Can't get new work units (Message 35833)
Posted 19 Jan 2010 by hoarfrost
Post:
Now confirm "Use ATI GPU option" and receive task.
Unpredictable scheduler. :)
14) Message boards : Number crunching : Can't get new work units (Message 35832)
Posted 19 Jan 2010 by hoarfrost
Post:
Hello!

Computer && BOINC:
19/01/2010 17:16:14 Starting BOINC client version 6.10.24 for windows_intelx86
19/01/2010 17:16:14 log flags: file_xfer, sched_ops, task
19/01/2010 17:16:14 Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.3
19/01/2010 17:16:14 Data directory: C:\ProgramData\BOINC_Data
19/01/2010 17:16:14 Running under account Olenenok
19/01/2010 17:16:14 Processor: 2 GenuineIntel Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz [x86 Family 6 Model 15 Stepping 11]
19/01/2010 17:16:14 Processor: 4.00 MB cache
19/01/2010 17:16:14 Processor features: fpu tsc pae nx sse sse2 pni mmx
19/01/2010 17:16:14 OS: Microsoft Windows 7: Ultimate x86 Edition, (06.01.7100.00)
19/01/2010 17:16:14 Memory: 2.00 GB physical, 4.00 GB virtual
19/01/2010 17:16:14 Disk: 32.00 GB total, 8.82 GB free
19/01/2010 17:16:14 Local time is UTC +3 hours
19/01/2010 17:16:14 ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.403, 1024MB, 1520 GFLOPS peak)
19/01/2010 17:16:14 Milkyway@home Found app_info.xml; using anonymous platform
19/01/2010 17:16:14 DrugDiscovery URL http://boinc.drugdiscoveryathome.com/; Computer ID 12; resource share 100
19/01/2010 17:16:14 Einstein@Home URL http://einstein.phys.uwm.edu/; Computer ID 1593201; resource share 100
19/01/2010 17:16:14 Milkyway@home URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 103082; resource share 200
19/01/2010 17:16:14 Milkyway@home General prefs: from Milkyway@home (last modified 20-Sep-2009 19:05:53)
19/01/2010 17:16:14 Milkyway@home Computer location: home
19/01/2010 17:16:14 Milkyway@home General prefs: no separate prefs for home; using your defaults
19/01/2010 17:16:14 Reading preferences override file
19/01/2010 17:16:14 Preferences:
19/01/2010 17:16:14 max memory usage when active: 1535.34MB
19/01/2010 17:16:14 max memory usage when idle: 1842.41MB
19/01/2010 17:16:15 max disk usage: 9.25GB
19/01/2010 17:16:15 (to change, visit the web site of an attached project,
19/01/2010 17:16:15 or click on Preferences)
19/01/2010 17:16:15 Using proxy info from GUI
19/01/2010 17:16:15 Not using a proxy


Use app_info.xml
<app_info>
<app>
<name>milkyway</name>
</app>
<file_info>
<name>astronomy_0.20b_ATI_SSE2_ati.exe</name>
<executable/>
</file_info>
<file_info>
<name>brook32.dll</name>
<executable/>
</file_info>

<app_version>
<app_name>milkyway</app_name>
<version_num>20</version_num>
<flops>1.0e11</flops>
<avg_ncpus>0.25</avg_ncpus>
<max_ncpus>1</max_ncpus>
<coproc>
<type>ATI</type>
<count>0.25</count>
</coproc>
<cmdline>n4</cmdline>
<file_ref>
<file_name>astronomy_0.20b_ATI_SSE2_ati.exe</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>brook32.dll</file_name>
</file_ref>
</app_version>

</app_info>


Request:

19/01/2010 17:24:53 Milkyway@home Sending scheduler request: To fetch work.
19/01/2010 17:24:53 Milkyway@home Requesting new tasks for CPU
19/01/2010 17:24:58 Milkyway@home Scheduler request completed: got 0 new tasks
19/01/2010 17:24:58 Milkyway@home Message from server: No work sent


Why? Before ~ 08:20 19.01.2010 all works done.
15) Message boards : Number crunching : app_version settings (Message 35574)
Posted 12 Jan 2010 by hoarfrost
Post:
Hello!

Excuse me please if my English is not right.

If I understand right, distribution for CPU and GPU Time between all task managed by section client_state.xml (and server reply file), that shown below:
<app_version>
<app_name>milkyway</app_name>
<version_num>21</version_num>
<platform>windows_intelx86</platform>
<avg_ncpus>0.684651</avg_ncpus>
<max_ncpus>0.684651</max_ncpus>

<flops>310080000000.000000</flops>
<plan_class>ati13ati</plan_class>
<file_ref>
<file_name>milkyway_0.21_windows_intelx86__ati13ati.exe</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>brook32_ati.dll</file_name>
<open_name>brook32.dll</open_name>
<copy_file/>
</file_ref>
<coproc>
<type>ATI</type>
<count>1.00000</count>
</coproc>
</app_version>


When I manually correct values that marked bold, to 0.5 for exclusive using of 1 (and only one) CPU core for 2 GPU tasks that runs simultaneously, on first several units I see an ideal "picture" when BOINC runs 2 units on GPU and percent of GPU load all time was 99-100%. When one of units was ended, GPU loaded "decreased" to 97-98%.

When GPU crunch only 1 WU its load down to 0% on 2 or 3 seconds (when BOINC finish one WU and start next).

But when BOINC start to crunch next WU's values of CPU% reset to 68% and "ideal picture" was destroyed.

Can project administrators set the default values of this parameters to 0.25 for 4-GPU units crunching on 1 CPU core?

Happy crunching! :-)
16) Message boards : Number crunching : Testing ATI Application Availability (Message 35564)
Posted 12 Jan 2010 by hoarfrost
Post:
With BOINC Manager v6.10.24 works. Thank you! :)

Can I control a CPU Time% that need for GPU-unit and number of concurrent GPU-units?
By default - only 68%, that too small, because with 100% I have a 99% GPU load, but with 68% - 90-95% only (about 6000 CS per day).
17) Message boards : Number crunching : Testing ATI Application Availability (Message 35555)
Posted 12 Jan 2010 by hoarfrost
Post:
BOINC v6.10.25? I see 6.10.18 as recommended and 6.10.24 as development...
18) Message boards : Number crunching : Testing ATI Application Availability (Message 35552)
Posted 12 Jan 2010 by hoarfrost
Post:
Hello!

Host 103082. ATI Radeon HD4890. ATI Catalyst 9.12.

12/01/2010 20:06:37 Starting BOINC client version 6.10.3 for windows_intelx86
...
12/01/2010 20:06:37 Processor: 2 GenuineIntel Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz [x86 Family 6 Model 15 Stepping 11]
12/01/2010 20:06:37 Processor: 4.00 MB cache
12/01/2010 20:06:37 Processor features: fpu tsc pae nx sse sse2 pni mmx
12/01/2010 20:06:37 OS: Microsoft Windows 7: x86 Edition, (06.01.7100.00)
12/01/2010 20:06:37 Memory: 2.00 GB physical, 4.00 GB virtual
12/01/2010 20:06:37 Disk: 32.00 GB total, 8.07 GB free
12/01/2010 20:06:37 Local time is UTC +3 hours
12/01/2010 20:06:41 Can't load library nvcuda.dll
12/01/2010 20:06:41 ATI GPU 0: RV770 (CAL version 1.4.515, 1024MB, 1520GFLOPS)



12/01/2010 20:07:10 Milkyway@home Requesting new tasks
12/01/2010 20:07:21 Milkyway@home Scheduler request completed: got 0 new tasks
12/01/2010 20:07:21 Milkyway@home Message from server: No work sent
12/01/2010 20:07:21 Milkyway@home Message from server: Need libraries named ati* to use ATI GPU
12/01/2010 20:07:21 Milkyway@home Message from server: Your computer has no NVIDIA GPU


Back to app_info...
19) Message boards : Number crunching : Computation parameters (Message 31256)
Posted 20 Sep 2009 by hoarfrost
Post:
More unfortunately is the fact that at this time the tasks can be completed in such short time periods. GPU Grids tasks are, even on fast GPUs, about 6 to 10 hours in length. Collatz tasks are 15 minutes or more, and so on ... My 4870 GPU does MW tasks in under a minute each ... that means lots of calls to the server. At least once every 20 minutes or so ... 3 times an hour, 72 times a day and that is only to get the tasks ... I am uploading a result once per minute or as many as 1440 times a day in addition to that just to upload results ...

It is when you multiply that times all the other people doing the same thing that it gets to be a problem.


MilkyWay@Home project RAC near the 50 000 000. WU "price" ~ 50 CS. MW need operate about 1 000 000 WU's per one day. 1 WU = 2 files = 1 input + 1 output.
MW@H must operate about (2 000 000 file / day) / (86 400 sec / day) ~ 23 file / second.
20) Message boards : Number crunching : Computation parameters (Message 31254)
Posted 20 Sep 2009 by hoarfrost
Post:
Hello all! :-)

If I understood right, computation parameters for each task put in one very small (about 200-800 bytes) file that BOINC must download from server. And output results must be written in very small file, that BOINC upload to server.

If this parameters write into WU-info, that BOINC get in task request and write into client_state.xml as command-line arguments (for example), and computation result also write into "fields" of "task-report request" - may be server loading decrease?

P.S. Excuse me please if my English is not right. :-)




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