Posts by [AF>Libristes] ignace72
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1) Message boards : Unix/Linux : GPU computing error with Catalyst 11.11 on GNU. (Message 12989)
Posted 2251 days ago by [AF>Libristes] ignace72
Hello,
Thank you for that answer.
I did think to downgrade Catalyst but the current version (11.11) is the only currently supporting Xorg 1.11 which would require me to downgrade Xorg also.
The performance gain of the couple Catalyst 11.11, Xorg 1.11 is so high that I feel I have changed graphics card (HD 4670 1GB fanless), it allows me to watch such a movie in 720p without suspending calculations CPU boinc.
I do not know if the version provided by Catalyst OpenCL is identical to that of the SDK.
It is a certainty. The OpenCL is young and the reactivity of non-free software is slow, which augurs a mounted power of OpenCL.
I notice that some errors are calculated with OpenCL applications and it works with others and with others, the opposite!
I can not use the GPU calculations MilkyWay because my graphics card is not compatible (An ATI GPU Supporting double precision math IS required).

I wish I compile the application with the new driver but I did not find the sources.

The trouble is pending.

thank you

* translated from the French with translate.google.com
2) Message boards : Unix/Linux : GPU computing error with Catalyst 11.11 on GNU. (Message 12963)
Posted 2255 days ago by [AF>Libristes] ignace72
Stderr output

<core_client_version>6.10.58</core_client_version>
<![CDATA[
<message>
process exited with code 193 (0xc1, -63)
</message>
<stderr_txt>

Running Collatz Conjecture (3x+1) ATI GPU application version 2.01 by Gipsel (Linux64, CAL 1.4 - R1.5 multi-GPU Support)
instructed by BOINC client to use device 0
Reading input file ... done.
Checking 824633720832 numbers starting with 2372394562928329337192
CAL Runtime: 1.4.1607
Found 1 CAL device

Device 0: ATI Radeon HD4600 (RV730) 1024 MB local RAM (remote 490 MB cached + 1726 MB uncached)
GPU core clock: 0 MHz, memory clock: 0 MHz
320 shader units organized in 8 SIMDs with 8 VLIW units (5-issue), wavefront size 32 threads
not supporting double precision

Initializing lookup table (16384 kB) ... done
Setting BRT to use GPU 0
Starting WU on GPU 0
Copy lookup table to GPU memory (16384 kB)
Initialize step array on GPU (256 MB)
predicted runtime per iteration is 8 ms (33.3333 ms are allowed)
borders of the domains at 0 4096
No checkpoint data found.
SIGSEGV: segmentation violation
Stack trace (18 frames):
../../projects/boinc.thesonntags.com_collatz/collatz_2.01_x86_64-pc-linux-gnu__ati14(boinc_catch_signal+0x49)[0x40eb79]
/lib/libpthread.so.0(+0xf850)[0x7f9e8188e850]
/usr/lib/libaticaldd.so(+0xbb730)[0x7f9e7fb12730]
/usr/lib/libaticaldd.so(+0xbf0fa)[0x7f9e7fb160fa]
/usr/lib/libaticaldd.so(+0x309c01)[0x7f9e7fd60c01]
/usr/lib/libaticaldd.so(+0x33276e)[0x7f9e7fd8976e]
/usr/lib/libaticaldd.so(+0x32927c)[0x7f9e7fd8027c]
../../projects/boinc.thesonntags.com_collatz/libbrook_cal64.so(_ZN10CALExecMgr11executePassERN5brook4PassEP7ArgInfob+0xd03)[0x7f9e8224deb3]
../../projects/boinc.thesonntags.com_collatz/libbrook64.so(_ZN10KernelImpl18_executeDomainPassERN5brook4PassEP7ArgInfoPNS0_12ArgumentInfoEP10StreamImpl+0xce)[0x7f9e8247d83e]
../../projects/boinc.thesonntags.com_collatz/libbrook64.so(_ZN10KernelImpl12_executePassERN5brook4PassEPNS0_12ArgumentInfoE+0x67c)[0x7f9e8248234c]
../../projects/boinc.thesonntags.com_collatz/libbrook_cal64.so(_ZN13CALKernelImpl12_executePassERN5brook4PassEPNS0_12ArgumentInfoE+0x56b)[0x7f9e8224f09b]
../../projects/boinc.thesonntags.com_collatz/libbrook64.so(_ZN10KernelImpl17_executeTechniqueERN5brook9TechniqueEPNS0_12ArgumentInfoE+0x2d7)[0x7f9e8247e277]
../../projects/boinc.thesonntags.com_collatz/libbrook64.so(_ZN10KernelImpl3runEPN5brook12ArgumentInfoE+0x11e9)[0x7f9e8247f919]
../../projects/boinc.thesonntags.com_collatz/collatz_2.01_x86_64-pc-linux-gnu__ati14[0x405a1b]
../../projects/boinc.thesonntags.com_collatz/collatz_2.01_x86_64-pc-linux-gnu__ati14[0x407dcf]
../../projects/boinc.thesonntags.com_collatz/collatz_2.01_x86_64-pc-linux-gnu__ati14[0x4091ee]
/lib/libc.so.6(__libc_start_main+0xed)[0x7f9e8151917d]
../../projects/boinc.thesonntags.com_collatz/collatz_2.01_x86_64-pc-linux-gnu__ati14(__gxx_personality_v0+0x1b1)[0x404cc9]

Exiting...

</stderr_txt>
]]>
3) Message boards : Unix/Linux : GPU computing error with Catalyst 11.11 on GNU. (Message 12962)
Posted 2255 days ago by [AF>Libristes] ignace72
Hi all,
since my update on AMD Catalyst 11.11 ArchLinux, GPU all the calculations are in error immediately.
I have put the project on my PC.

Messages :
ven. 18 nov. 2011 04:10:40 CET Collatz Conjecture Starting collatz_2372394550043427449192_824633720832_0
ven. 18 nov. 2011 04:10:40 CET Collatz Conjecture Starting task collatz_2372394550043427449192_824633720832_0 using collatz version 201
ven. 18 nov. 2011 04:10:41 CET Collatz Conjecture Computation for task collatz_2372394550043427449192_824633720832_0 finished
ven. 18 nov. 2011 04:10:41 CET Collatz Conjecture Output file collatz_2372394550043427449192_824633720832_0_0 for task collatz_2372394550043427449192_824633720832_0 absent


The problem also exists on Windows 7 64-bit :
http://128.32.18.189/dev/forum_thread.php?id=7077

thank you

(translated from French with Google Translate)[url][/url]




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