POEM@home News

[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

[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>

[Dirk Broer]

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

POEM may be as "bad" -really needing a complete CPU core per WU- to only respond good on
<avg_ncpus>1.0</avg_ncpus>
<max_ncpus>4.0</max_ncpus>
<count>0.25</count>

or
<avg_ncpus>1.0</avg_ncpus>
<max_ncpus>3.0</max_ncpus>
<count>0.33</count>

or
<avg_ncpus>1.0</avg_ncpus>
<max_ncpus>2.0</max_ncpus>
<count>0.50</count>

or
<avg_ncpus>1.0</avg_ncpus>
<max_ncpus>1.0</max_ncpus>
<count>1.0</count>

And then there are people out there saying that an 8-core Bulldozer is overkill and nobody needs 8 cores.
We do!

[chris]

Why <max_ncpus>2.0< ?
I have only 1 core free and i also want only 1 core for poem...

[Dirk Broer]

If you want to run 4 WUs at a time 1 core may not be enough for POEM. If it is, please let me know!
To see from your scores you got it running good.