On Wed, Feb 16, 2011 at 6:28 PM, Patrick Sheffield <psheffi...@earthlink.net > wrote:
> I thought only Nvidia supported OpenCL without emulation? > > p > > ATI has an actual OpenCL support area on their site, so I'm unsure about that. I'm totally unsurprised about the result of the Grass and Terrain Example. I've had many conversations about this with a wide variety of ATI owners. My understanding is that it's that the drivers are semi-inadequate, not necessarily that the gpu's are strictly incapable of being performant. All I can say is that it's sort of .... special.... when you can go out and get a mac mini and have it to perform better than a rocked-out tower. If I had personally bought an ATI card with some idea of great graphics in SL, I would be peeved. -gt > On Feb 16, 2011, at 2:53 PM, Glen Speckert wrote: > > There is an example called OpenCL Procedural Grass and Terrain Example. > > When trying this on my Westmere w/5870 it fails, while on a Mini with 9400 > it works fine. > > The Mac Pro says: > > GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Thu Jan 27 08:34:47 UTC > 2011) > Copyright 2004 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you > are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "x86_64-apple-darwin".tty /dev/ttys000 > [Switching to process 17873 thread 0x0] > * > ---------------------------------------------------------------------------- > * > *Compute Engine: Using active OpenGL context...* > * > ---------------------------------------------------------------------------- > * > *Creating command queue for AMD ATI Radeon HD 5870...* > * > ---------------------------------------------------------------------------- > * > *Creating Buffer Object (6291456 bytes)...* > *Creating Buffer Object (6291456 bytes)...* > *Creating Buffer Object (262144 bytes)...* > *Creating Buffer Object (262144 bytes)...* > *Creating Buffer Object (262144 bytes)...* > *Grass Simulator: BladeCount[16384] RowCount[1000] ColumnCount[1000]* > *Compute Engine: Loading program 'gs' from file 'grass_kernels.cl'...* > * > ---------------------------------------------------------------------------- > * > *Building compute program 'gs'...* > *Error: Failed to build program executable!* > *OpenCL Error[-11]: Unknown error!* > *Build log for device '0':* > *Compute Engine: Empty Build Log! Unkown Error!* > * > ---------------------------------------------------------------------------- > * > *Grass Simulator: Failed to create device kernel!* > Program ended with exit code: 1 > > > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > However, when I run this on a Mac Mini, I get: > > GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Thu Jan 27 08:34:47 UTC > 2011) > Copyright 2004 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you > are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "x86_64-apple-darwin".tty /dev/ttys001 > [Switching to process 45120 thread 0x0] > * > ---------------------------------------------------------------------------- > * > *Compute Engine: Using active OpenGL context...* > * > ---------------------------------------------------------------------------- > * > *Creating command queue for NVIDIA GeForce 9400...* > * > ---------------------------------------------------------------------------- > * > *Creating Buffer Object (6291456 bytes)...* > *Creating Buffer Object (6291456 bytes)...* > *Creating Buffer Object (262144 bytes)...* > *Creating Buffer Object (262144 bytes)...* > *Creating Buffer Object (262144 bytes)...* > *Grass Simulator: BladeCount[16384] RowCount[1000] ColumnCount[1000]* > *Compute Engine: Loading program 'gs' from file 'grass_kernels.cl'...* > * > ---------------------------------------------------------------------------- > * > *Building compute program 'gs'...* > * > ---------------------------------------------------------------------------- > * > *Compute Engine: Creating kernel 'ComputeGrassOnTerrainKernel' for program > 'gs'...* > *Compute Engine: Creating OpenGL buffer reference 'grass_vertices' for > buffer id '1'...* > *Compute Engine: Creating OpenGL buffer reference 'grass_colors' for > buffer id '2'...* > *Terrain Simulator: Vertices[16384] Count[128, 128]* > *Compute Engine: Loading program 'tk' from file 'terrain_kernels.cl'...* > * > ---------------------------------------------------------------------------- > * > *Building compute program 'tk'...* > * > ---------------------------------------------------------------------------- > * > *Compute Engine: Creating kernel 'ComputeTerrainKernel' for program > 'tk'...* > *Compute Engine: Creating OpenGL buffer reference 'terrain_vertices' for > buffer id '3'...* > *Compute Engine: Creating OpenGL buffer reference 'terrain_normals' for > buffer id '4'...* > *Compute Engine: Creating OpenGL buffer reference 'terrain_texcoords' for > buffer id '5'...* > On Feb 6, 2011, at 9:32 AM, George Toledo wrote: > > Apologies; make that 4870. > > On Sun, Feb 6, 2011 at 12:26 PM, George Toledo <gtole...@gmail.com> wrote: > >> Is this card known to perform badly with QC? I had some issues with CL, >> GLSL and feedback loops (separately) that gave me serious pause when using >> this gpu. I was really surprised. It's not a stretch to say that my intel >> 3100/macbook 13" works better than a mac pro loaded with the ati. I seem to >> remember that it's not CL supported (I forgot to check w/ the cl info >> patch), but I was surprised that it just performs badly, in general. Is this >> consistent with the experience of others? >> >> -- >> George Toledo >> gtole...@gmail.com >> www.georgetoledo.com >> >> The information contained in this E-mail and any attachments may be >> confidential. >> If you have received this E-mail in error, please notify us immediately by >> telephone or return E-mail. >> You should not use or disclose the contents of this E-mail or any of the >> attachments for any purpose or to any persons. >> >> > > > -- > George Toledo > gtole...@gmail.com > www.georgetoledo.com > > The information contained in this E-mail and any attachments may be > confidential. > If you have received this E-mail in error, please notify us immediately by > telephone or return E-mail. > You should not use or disclose the contents of this E-mail or any of the > attachments for any purpose or to any persons. > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/speckert%40specktech.com > > This email sent to speck...@specktech.com > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/psheffield%40earthlink.net > > This email sent to psheffi...@earthlink.net > > > -- George Toledo gtole...@gmail.com www.georgetoledo.com The information contained in this E-mail and any attachments may be confidential. If you have received this E-mail in error, please notify us immediately by telephone or return E-mail. 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