POEM@home News

[Nolion]

That is odd, with my system running Ubuntu I can't even get it to grab units for GPU without the app_info.xml. Have you ever looked into the results of the work units that fail as to why POEM say they failed?

I've only attempted 3 WUs with app_info.xml present and all 3 failed. Log activity below. I posted the app_info.xml contents earlier in this thread. Without app_info.xml I've completed ~300 GPU WUs with no errors.

Tue 24 Jan 2012 02:45:08 AM EST | Poem@Home | Sending scheduler request: To fetch work.
Tue 24 Jan 2012 02:45:08 AM EST | Poem@Home | Requesting new tasks for ATI
Tue 24 Jan 2012 02:45:31 AM EST | Poem@Home | Scheduler request completed: got 3 new tasks
Tue 24 Jan 2012 02:45:34 AM EST | Poem@Home | Started download of 2763_1327392012.in_1327392022_1149270353
Tue 24 Jan 2012 02:45:34 AM EST | Poem@Home | Started download of 16779_1327392027.in_1327392035_974879385
Tue 24 Jan 2012 02:46:20 AM EST | Poem@Home | Finished download of 2763_1327392012.in_1327392022_1149270353
Tue 24 Jan 2012 02:46:20 AM EST | Poem@Home | Started download of 20859_1327392037.in_1327392040_495021470
Tue 24 Jan 2012 02:46:20 AM EST | Poem@Home | Starting task poempp_gpucrystal_1327392022_1149270353_0 using poemcl version 1 (opencl_ati_100)
Tue 24 Jan 2012 02:47:13 AM EST | Poem@Home | Computation for task poempp_gpucrystal_1327392022_1149270353_0 finished
Tue 24 Jan 2012 02:47:13 AM EST | Poem@Home | Output file poempp_gpucrystal_1327392022_1149270353_0_0 for task poempp_gpucrystal_1327392022_1149270353_0 absent
Tue 24 Jan 2012 02:47:13 AM EST | Poem@Home | Output file poempp_gpucrystal_1327392022_1149270353_0_1 for task poempp_gpucrystal_1327392022_1149270353_0 absent
Tue 24 Jan 2012 02:47:13 AM EST | Poem@Home | Output file poempp_gpucrystal_1327392022_1149270353_0_2 for task poempp_gpucrystal_1327392022_1149270353_0 absent
Tue 24 Jan 2012 02:47:16 AM EST | Poem@Home | Finished download of 16779_1327392027.in_1327392035_974879385
Tue 24 Jan 2012 02:47:16 AM EST | Poem@Home | [error] File 16779_1327392027.in_1327392035_974879385 has wrong size: expected 1255838, got 1259668
Tue 24 Jan 2012 02:47:16 AM EST | Poem@Home | [error] Checksum or signature error for 16779_1327392027.in_1327392035_974879385
Tue 24 Jan 2012 02:47:21 AM EST | Poem@Home | Finished download of 20859_1327392037.in_1327392040_495021470
Tue 24 Jan 2012 02:47:21 AM EST | Poem@Home | Starting task poempp_gpucrystal_1327392040_495021470_0 using poemcl version 1 (opencl_ati_100)
Tue 24 Jan 2012 02:47:24 AM EST | Poem@Home | Computation for task poempp_gpucrystal_1327392040_495021470_0 finished
Tue 24 Jan 2012 02:47:24 AM EST | Poem@Home | Output file poempp_gpucrystal_1327392040_495021470_0_0 for task poempp_gpucrystal_1327392040_495021470_0 absent
Tue 24 Jan 2012 02:47:24 AM EST | Poem@Home | Output file poempp_gpucrystal_1327392040_495021470_0_1 for task poempp_gpucrystal_1327392040_495021470_0 absent
Tue 24 Jan 2012 02:47:24 AM EST | Poem@Home | Output file poempp_gpucrystal_1327392040_495021470_0_2 for task poempp_gpucrystal_1327392040_495021470_0 absent

[mmstick]

But do you have the actual error from the POEM@Home website itself?

Your Account > Tasks > Error > Click the tasks that failed and check to see what the stderr output says.
As well, I have an example of my app_info.xml on Ubuntu in this picture

[Nolion]

Code 22 "No such file or directory" for the two WUs that completed download and started computation.

[Nolion]

Code 22 "No such file or directory" for the two WUs that completed download and started computation.

The code 22 (0x16, -234) I am getting has been seen before with 64 bit Linux. I will look into the suggestions at http://boincfaq.mundayweb.com/index.php?viewCat=5 when I get a chance (may be a week or two). I do have ia32-libs installed as that was a prerequisite for APP SDK v2.6. Thanks mmstick for your comments.

[chris]

Hmmm, i just started POEM....
got 1 task, it's running with a GPU usage of 0% goes very slowly...

I use this app info:

<app_info>
<app>
<name>poemcl</name>
<user_friendly_name>POEM++ OpenCL</user_friendly_name>
</app>
<file_info>
<name>poemcl_0.1_windows_intelx86__opencl_ati_10 0</name>
<executable/>
</file_info>
<app_version>
<app_name>poemcl</app_name>
<version_num>1</version_num>
<plan_class>opencl_ati_100</plan_class>
<avg_ncpus>0.98</avg_ncpus>
<max_ncpus>0.75</max_ncpus>
<flops>4.1e12</flops>
<coproc>
<type>ATI</type>
<count>0.25</count>
</coproc>
<cmdline></cmdline>
<file_ref>
<file_name>poemcl_0.1_windows_intelx86__opencl_ati _100</file_name>
<main_program/>
</file_ref>
</app_version>
</app_info>

[Dirk Broer]

Make sure POEM has a core/cores all of its own (I see you want four at a time):

<avg_ncpus>1.0</avg_ncpus>
<max_ncpus>2.0</max_ncpus>

[chris]

Hmm OK,

i told Constellation to use max. 2 cores and i tell WCG to use max. 1 core...
but constellation use 3 cores as well.
Must i allow poem also to use the CPU ? ( but i don't want CPU units... )

[Dirk Broer]

It's either not allowing POEM to use a complete core and see it do 80+ hours for a WU,
or give it a core for its own, and see a WU processed in 40 minutes or less.
Funny thing is that 2 WUs can be run, using a app_info.xml file, using that one core.
The wonders of OpenCL...
Wonder why Constellation uses 3 cores when you give 2 as a max?

[chris]

Maybe i'm crazy....
i now have 1 core free for Poem.
I try several app_info versions...
averncpu 0.33
maxncpu 1
count 0.33

or

0.5
1
0.5

but nothing happens, poem ignores the app_info and always run 1 WU using 1 GPU ( 25% ) and 0.98 CPU...
???
( yes i restart Boinc after change app_info file )

[Dirk Broer]

Try
<avg_ncpus>1.0</avg_ncpus>
<max_ncpus>2.0</max_ncpus>
<count>0.25</count>