On 7. Feb, 2007, at 17:16 , Robert Osfield wrote:
Hi Stefan,
Is you machine dual core or single core?
Dual core, though I don't think OpenThreads detects this:
int OpenThreads::GetNumberOfProcessors()
{
#if defined(__linux__)
return sysconf(_SC_NPROCESSORS_CONF);
#else
return 1;
#endif
}
Another point on the map...
The above suggests that original mode was probably single threaded. It
might be worth adding some debugging to get a definitive answer. Note
that the osgViewer::Viewer now by default automatically suggests the
threading model to use, if you have a single core machine and single
window it suggest SingleThreaded.
I did interrupt the running viewer in gdb, and it only had one thread.
The above should just open on one window on screen 0. Is this what
happens?
Yes, same as the default as I only have one X11 screen.
If only I could recreate the same problem then I might have a chance
to dig what might be up. I have single core Linux laptop that I fire
occassional, and everything works fine save for the exit from
osgwindows. Here a get a crash in the OpenGL driver. No clue to
cause yet.
What happens when you run osgwindows cow.osg?
An infinite loop:
ViewerDoubleBufferedRenderingOperation::release() causing draw to exit
get op 0 0x43c140
increment Barrier
Doing op Barrier 0x43c140
Waiting for OperationsThread to cancel 0x43be10
get op 0 0x43c140
increment SwapBuffers
Doing op SwapBuffers 0x43c140
get op 0 0x43c140
increment RunOperation
Doing op RunOperation 0x43c140
Doing op Render 0x42cb80
ViewerDoubleBufferedRenderingOperation::release() causing draw to exit
get op 0 0x43c140
increment Barrier
Doing op Barrier 0x43c140
Waiting for OperationsThread to cancel 0x43be10
get op 0 0x43c140
increment SwapBuffers
Doing op SwapBuffers 0x43c140
get op 0 0x43c140
increment RunOperation
Doing op RunOperation 0x43c140
Doing op Render 0x42cb80
ViewerDoubleBufferedRenderingOperation::release() causing draw to exit
I use more or less the same code in Equalizer, I tried with and
without
the XInitThreads() - and it works.
Do you have completely your own X11 viewer code in Equalizer, or does
this sit ontop of the OSG's viewer lib?
It is my own X11 code, but doing similar stuff. I was planning
to make a Equalizer-based osgViewer as a drop-in for the osgcluster
code whenever I have some spare cycles.
Cheers,
Stefan.
--
http://www.equalizergraphics.com
http://www.linkedin.com/in/eilemann
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
