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drummers-lowrise
1) Message boards : Problems and Help : Errors in linux X86_64 ati (Message 31423)
Posted 3846 days ago by Profile Trog Dog
I'm running ubuntu 10.10 64bit with an ati 4850 GPU (ubuntu stock driver)

The problem is that all WU that run in the GPU en with errors.

Stderr output is not giving much clues :(

http://www.primegrid.com/result.php?resultid=220998487 for instance.

<core_client_version>6.10.58</core_client_version> <![CDATA[ <message> process exited with code 127 (0x7f, -129) </message> <stderr_txt> </stderr_txt> ]]>


I've also run ldd aganst the exec file and everything seems OK

linux-vdso.so.1 => (0x00007fffebbff000) libOpenCL.so => /media/disk/ati-stream-sdk-v2.2-lnx64/lib/x86_64/libOpenCL.so (0x00007fc406405000) libpthread.so.0 => /lib/libpthread.so.0 (0x00007fc4061c0000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007fc405eba000) libm.so.6 => /lib/libm.so.6 (0x00007fc405c37000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007fc405a20000) libc.so.6 => /lib/libc.so.6 (0x00007fc40569d000) /lib64/ld-linux-x86-64.so.2 (0x00007fc40660c000) libdl.so.2 => /lib/libdl.so.2 (0x00007fc405499000) librt.so.1 => /lib/librt.so.1 (0x00007fc405290000)


Any idea?


In my experience exit code 127 has always been a missing library - yet your ldd output looks fine. I had the same problem on a gentoo box and it was solved by installing the ati stream sdk package and then selecting the ati version of OpenCL to be default. Here's a wu of mine prior to this

<core_client_version>6.10.58</core_client_version> <![CDATA[ <message> process exited with code 127 (0x7f, -129) </message> <stderr_txt> ../../projects/www.primegrid.com/primegrid_tpsieve_1.38_x86_64-pc-linux-gnu__ati13ati: error while loading shared libraries: libOpenCL.so: cannot open shared object file: No such file or directory </stderr_txt> ]]>


The only difference I can see is in the stderr_txt where mine actually states libOpenCL.so is missing.

ldd after the above

cgim433 www.primegrid.com # ldd primegrid_tpsieve_1.38_x86_64-pc-linux-gnu__ati13ati linux-vdso.so.1 => (0x00007ffffe6da000) libOpenCL.so => /usr/lib/libOpenCL.so (0x00007fa02ffae000) libpthread.so.0 => /lib/libpthread.so.0 (0x00007fa02fd92000) libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/libstdc++.so.6 (0x00007fa02fa80000) libm.so.6 => /lib/libm.so.6 (0x00007fa02f7ff000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007fa02f5e8000) libc.so.6 => /lib/libc.so.6 (0x00007fa02f28f000) /lib64/ld-linux-x86-64.so.2 (0x00007fa0301b3000) libdl.so.2 => /lib/libdl.so.2 (0x00007fa02f08b000) librt.so.1 => /lib/librt.so.1 (0x00007fa02ee82000)


Do you have to tell ubuntu to use the ati version of OpenCL?
2) Message boards : Developer blog : 2007 12 08 - The Economist (Message 7849)
Posted 4987 days ago by Profile Trog Dog
Rytis Slatkevicius - mild-mannered student by day, fearless prime-fighter by night :D

Well done Rytis!
3) Message boards : General discussion : Team recruitment thread (Message 5819)
Posted 5177 days ago by Profile Trog Dog
Team FREE TIBET/TIBET LIBRE takes part in several projects. The objective of this team is quite simply to make known the current situation in TIBET, and to avoid letting these people, this culture be forgotten.

All people sensitive to this cause are welcomed.
4) Message boards : Number crunching : What is PrimeGrid? (Message 5817)
Posted 5177 days ago by Profile Trog Dog
Prime Numbers are of great interest to mathematicians for a variety of reasons.


Other than cryptography, what are the benefits of studying or identifying primes?
5) Message boards : Number crunching : Updated Project List For BOINCView (Message 4385)
Posted 5328 days ago by Profile Trog Dog
When you use BOINCView to attach your hosts to a project - it brings up a list of projects to make the attaching process easier. Unfortunately, it was only current at the time when BOINCView was released.

Thanks to Webmaster Yoda, you can download and install an updated list of projects to attach to.

The list is available as a zip file at http://www.boinc-australia.net/downloads/BV-Projects.zip

Instructions for its use are available here .

6) Message boards : Problems and Help : Primegrid Beta software(LLR) (Message 4238)
Posted 5354 days ago by Profile Trog Dog
Cheers guys

Thanks for the info.
7) Message boards : Problems and Help : Primegrid Beta software(LLR) (Message 4220)
Posted 5356 days ago by Profile Trog Dog
Thanks smh :)

What is the significance of 195000? Why has that number been selected as n?
8) Message boards : Problems and Help : Primegrid Beta software(LLR) (Message 4175)
Posted 5373 days ago by Profile Trog Dog
G'day JasonG

I'm not a mathemetician, so don't laugh too hard, but as k*2^n-1 is a reisel prime are we sharing results between the two projects?

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