I have tested opencl with Fedora 11, and Kamic beta (ubuntu).  After install the video driver ( I just bought a 4870 card), I got 10K frame/sec with Fedora 11, and 2K frames/sec with ubuntu.   When trying to run the demos all failed with segmentation voliation under Fedora, and work under Karmic.    Any idea about fedora 11?

Which application are you running? 

The drivers which came with OpenCL are test drivers for OpenCL and not meant for Graphics applications.

Are the drivers getting installed properly? Could you try running the CAL samples, say FindNumDevices and post the result?

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Here it also segfaults constantly on Arch Linux 64 bit

How would I know if the drivers are installed properly?

Try running any of the cal samples, for example FindNumDevices should be able to return the number of devices present.

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Running the samples without graphic-drivers loaded results naturally in a device count of 0, with loaded fglrx it crashes before there is output on the number.

gdb reports

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff3f0092a in ?? () from /usr/lib/libaticaldd.so

l shows me the main-function.

Same problem here on Fedora 11

Every time i start a Brook or Cal or OpenCL  samples the example crash with Segmentation Fault, the Seg Fault seem to be located into calInit() and it crash if i am a normal user or root


The step i has followed:

I am on Fedora 11 64bit  with Ati catalyst driver installed from yum repositories version 9.9


1) I has uncompressed the ati-stream-sdk-v2.0-beta4-lnx64.tgz

2) following the installation note i has added the environment variables

ATISDKSTREAMROOT and ATISTREAMSDKSAMPLESROOT pointing to the installation directory and LD_LIBRARY_PATH to ATISDKSTREAMROOT/lib/x86_64

3) i go into samples/cal folder and do a make

( because yum install libaticalc into /usr/lib64/catalyst i has added this Library into the makefile.common.I has also added in some sources example #include <stdio.h> and #include <cstdlib.h> otherwise fprint and memset are not defined

4) i has finaly try to start hellocal and the sample crash into calInit()


So i has removed the yum installed driver and installed the ati-opencl-beta-driver-v2.0-beta4-lnx, the driver seem to work ( i has the "AMD Testing use only" message on the right corner screen ), recompiled the samples make clean, make ( i has also removed the library search path /usr/lib64/catalyst because the library with the new drivers are now located into /usr/lib64  ) and tried to start hellocall and unfortunately it crash  (any samples crash)

I has also tried the Ati stream SDK 1.4 with same result crash on calInit()



Where i am wrong ?

Can confirm this.

Ubuntu 9.10 - Karmic Koala

ati-stream-sdk-v2.0-beta4-lnx64.tgz

 

Tasp,
There is a known issue with Ubuntu 9.10 with the ATI drivers. Try this, http://ubuntuforums.org/showthread.php?t=1311739, to get a working driver if needed, but i'm not sure that Stream will work with 9.10 because of changes in X.

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Micah Villmow
Advanced Micro Devices Inc.
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The information presented in this document is for informational purposes only and may contain technical inaccuracies, omissions and typographical errors. Links to third party sites are for convenience only, and no endorsement is implied.

The driver works fine. I never had a problem with it. But the seg fault still persists.

Where can I find a list of version numbers for X and other packages with which it will work?

Did you find a solution to this problem?

I also got this problem. Every single demo app with cal og opencl segfaults.

Using Ubuntu Karmic 9.10. I got no graphic problems besides the opencl/cal ones.

 

$gdb ./FindNumDevices
[Thread debugging using libthread_db enabled]
Supported CAL Runtime Version: 1.3.185
Found CAL Runtime Version: 1.4.467
Use -? for help

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff5a5492a in ?? () from /usr/lib/libaticaldd.so

 

EDIT:

With the driver from ati stream sdk, when I run aticonfig --initial -f I get the following:

aticonfig: No supported adapters detected

With the normal 9.11 driver i don't get that kind of messages. Does that mean my card isn't supported for opencl yet?

I got this card:

01:00.0 VGA compatible controller: ATI Technologies Inc M96 [Mobility Radeon HD 4650]

Edited: 11/14/2009 at 06:55 AM by tball

Hi,

Any update?

All samples (opencl and cal) segfault.  This is on debian testing (2.6.30-2-amd64 kernel), opencl-beta-4 drivers, ATI Radeon 4350.

For example, hellocal segfaults inside call to calInit().

-Greg