AstroPulse v7 problems

Message boards : AstroPulse : AstroPulse v7 problems
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile David Steel
Volunteer tester

Send message
Joined: 31 Dec 12
Posts: 6
Credit: 20,524,695
RAC: 0
Australia
Message 51678 - Posted: 22 Jul 2014, 16:01:14 UTC

I have started AstroPulse v7 but I’m seeing a huge difference from v6.

V6 would take about 1 hour per task, use 99% GPU and CPU/RAM usage was constant.

With v7 the tasks are taking 3 times longer, GPU usage is about 30%, CPU 100% and RAM is up and down like a yo-yo.

Also with v7 the lag is making my PC unusable, I never had this problem with v6.

Is this happening to anyone else?

Thanks
ID: 51678 · Report as offensive
Josef W. Segur
Volunteer tester

Send message
Joined: 14 Oct 05
Posts: 1137
Credit: 1,848,733
RAC: 0
United States
Message 51680 - Posted: 22 Jul 2014, 22:09:48 UTC - in response to Message 51678.  

The default tuning parameters have changed considerably for high end cards like your 590's. That seems the most likely thing to be giving the different performance. To test my guess, you could find the empty (0 byte) text file named ap_cmdline_7.01_windows_intelx86__opencl_nvidia_100.txt in your setiweb.ssl.berkeley.edu_beta directory, and put this line in it:

-unroll 2 -ffa_block 1024 -ffa_block_fetch 512

Those were the AP v6 OpenCL defaults. Be sure to work with a plain text editor (Notepad will do if you have nothing better). The file is read whenever an NVIDIA OpenCL task is started, so no other special action is needed to make it effective.

I doubt those settings are ideal for your 590's, but the test will show whether going back to the older defaults gives performance similar to AP v6.
                                                                   Joe
ID: 51680 · Report as offensive
Profile David Steel
Volunteer tester

Send message
Joined: 31 Dec 12
Posts: 6
Credit: 20,524,695
RAC: 0
Australia
Message 51681 - Posted: 23 Jul 2014, 7:46:31 UTC - in response to Message 51680.  

Wow, that was like turning a switch on, back to normal now.

98-99% GPU usage, CPU and RAM are constant and zero lag.

Run time looks a bit longer than v6, about 75 mins.

Also, I have an app_config.xml because of my dual GPU card, what do you recommend for the <cpu_usage> setting?

Thanks for your help

<app_config>
<app>
<name>astropulse_v7</name>
<max_concurrent>2</max_concurrent>
<gpu_versions>
<gpu_usage>.5</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>
ID: 51681 · Report as offensive
Josef W. Segur
Volunteer tester

Send message
Joined: 14 Oct 05
Posts: 1137
Credit: 1,848,733
RAC: 0
United States
Message 51684 - Posted: 23 Jul 2014, 15:05:48 UTC - in response to Message 51681.  

I think that <cpu_usage> set to 1 is right for a system where GPU is far more productive than CPU. It's really a matter of having the CPU available to tell the GPU what to do next.
                                                                   Joe
ID: 51684 · Report as offensive
Dirk Broer
Volunteer tester

Send message
Joined: 17 Jul 13
Posts: 35
Credit: 2,851,695
RAC: 828
British Virgin Islands
Message 51686 - Posted: 23 Jul 2014, 18:53:02 UTC - in response to Message 51684.  

I think that <cpu_usage> set to 1 is right for a system where GPU is far more productive than CPU. It's really a matter of having the CPU available to tell the GPU what to do next.

It is more the OpenCL thing to do. In former days CUDA and CAL+ applications only needed a fraction of the CPU to be told what to do next.
ID: 51686 · Report as offensive
boinc127
Volunteer tester

Send message
Joined: 8 Sep 13
Posts: 2
Credit: 581,568
RAC: 0
United States
Message 51689 - Posted: 24 Jul 2014, 2:46:18 UTC
Last modified: 24 Jul 2014, 2:47:39 UTC

From my observations I have found that the Astropulse Nvidia tasks for versions 6 and 7 run about the same amount of time, next time I run Nvidia astropulse v7 I will take a look at the GPU and memory usage. However, I have observed that when I run the OpenCL Intel GPU version 7 program, my display does get a little laggy (it is noticeable), compared to other OpenCL graphics programs (like Einstein@home and Collatz@home)... (I haven't run astropulse v6 OpenCL for Intel GPU in quite a while, so I don't really remember the lag I get from it, if any).
ID: 51689 · Report as offensive
kararom
Volunteer tester

Send message
Joined: 5 May 13
Posts: 5
Credit: 16,607,448
RAC: 1
Russia
Message 51980 - Posted: 20 Aug 2014, 17:23:02 UTC
Last modified: 20 Aug 2014, 17:24:22 UTC

ID: 51980 · Report as offensive
Profile Raistmer
Volunteer tester
Avatar

Send message
Joined: 18 Aug 05
Posts: 2423
Credit: 15,878,738
RAC: 0
Russia
Message 51993 - Posted: 21 Aug 2014, 19:23:32 UTC - in response to Message 51980.  

On my Computers:

http://setiweb.ssl.berkeley.edu/beta/show_host_detail.php?hostid=72196
http://setiweb.ssl.berkeley.edu/beta/show_host_detail.php?hostid=70437

all the tasks of AstroPulse v7 v7.02 (opencl_nvidia_100) ended with errors


Спасибо.
Этот баг я пофиксил уже, попробуй установить отсюда:
https://www.dropbox.com/s/wkpg7ndei2cifsz/AP7_win_x86_SSE2_OpenCL_NV_r2605.7z
А вот ветка для обсуждения конкретно этого бага: http://setiweb.ssl.berkeley.edu/beta/forum_thread.php?id=2195
News about SETI opt app releases: https://twitter.com/Raistmer
ID: 51993 · Report as offensive
kararom
Volunteer tester

Send message
Joined: 5 May 13
Posts: 5
Credit: 16,607,448
RAC: 1
Russia
Message 52014 - Posted: 24 Aug 2014, 14:33:49 UTC

А пофиксенная версия не появится для автоматической загрузки?
ID: 52014 · Report as offensive
Profile Raistmer
Volunteer tester
Avatar

Send message
Joined: 18 Aug 05
Posts: 2423
Credit: 15,878,738
RAC: 0
Russia
Message 52020 - Posted: 24 Aug 2014, 21:32:39 UTC - in response to Message 52014.  

А пофиксенная версия не появится для автоматической загрузки?

Появится со временем. Что-то Эрик малость подтормаживает с релизом. Если нет желания возиться с анонимной платформой - можно и подождать.
News about SETI opt app releases: https://twitter.com/Raistmer
ID: 52020 · Report as offensive
kararom
Volunteer tester

Send message
Joined: 5 May 13
Posts: 5
Credit: 16,607,448
RAC: 1
Russia
Message 52108 - Posted: 28 Aug 2014, 19:51:36 UTC

Загрузилась 7.03 - считает без ошибок!

СПС!
ID: 52108 · Report as offensive
Profile Raistmer
Volunteer tester
Avatar

Send message
Joined: 18 Aug 05
Posts: 2423
Credit: 15,878,738
RAC: 0
Russia
Message 52110 - Posted: 28 Aug 2014, 20:25:35 UTC - in response to Message 52108.  

Загрузилась 7.03 - считает без ошибок!

СПС!


Ну отлично! Спасибо за подтверждение! А то никак не могу добиться регулярных отчетов :)
News about SETI opt app releases: https://twitter.com/Raistmer
ID: 52110 · Report as offensive
Profile KWSN THE Holy Hand Grenade!
Volunteer tester
Avatar

Send message
Joined: 25 Apr 07
Posts: 44
Credit: 30,057,505
RAC: 84
United States
Message 52417 - Posted: 15 Sep 2014, 18:21:38 UTC

I've got Seti Beta running GPU units on 6 computers, but one of them, an Intel, hasn't gotten an AP WU since 7.01 - and it HAS been requesting them!
ID: 52417 · Report as offensive
Claggy
Volunteer tester

Send message
Joined: 29 May 06
Posts: 1037
Credit: 8,440,180
RAC: 21
United Kingdom
Message 52418 - Posted: 15 Sep 2014, 18:43:22 UTC - in response to Message 52417.  

I've got Seti Beta running GPU units on 6 computers, but one of them, an Intel, hasn't gotten an AP WU since 7.01 - and it HAS been requesting them!

For OpenCL work to be sent at Seti and Seti Beta you need OpenCL 1.2 drivers because of precision problem with OpenCL 1.1 drivers,

You're running OpenCL 1.1 drivers on your Intel GPU host, upgrade them to OpenCL 1.2 drivers and you'll get work.

Computer 71336

Claggy
ID: 52418 · Report as offensive

Message boards : AstroPulse : AstroPulse v7 problems


 
©2019 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.