Posted 19 May 2012 - 10:23 PM
Posted 09 July 2012 - 09:51 AM
I have problems regarding OpenCL support. I use OSX 10.6.8 and a ATI HD5570 with 1GB amount of RAM, Core2Quad 2,5, 4GB Ram.
There are four problems regarding the test in Luxmark:
1. The amount of usable graphics RAM is wrong, only 512MB are usable. How can I change this? Do I need to use another ATI personality or bin patch the kext?
2. The processing on most scenes of Luxmark never ends, it shows these pixelated results. This happens also with CPU only. What is wrong here?
3. How do I enable OpenCL 1.1?
4. Also the amount of system RAM seems to be wrong.
Thanks for help.
BTW: I cannot upload any image to this forum anymore. Why?
Posted 09 July 2012 - 12:42 PM
2. OpenCL 1.1 is available only with 10.7, OpenCL 1.2 with 10.8+
Luxmark is an benchmark and runs all available scenes exact 120 sec long. So you must wait that time.
Because of speed diffs between different gpu+cpu systems the rendered image of the scene vary much in case of clean+fine vs pixels!
With single gpu card (not highend AMD 79xx) you will not get an clean image within 120 Sec benchtime. That would take much longer for an cleaner image (10 Min... hours) depends on gpu power + scene.
If you want to let it render longer (than 120 sec) time for an more cleane+fine image, you can set Mode to interactive ( gpu only).
Beside that benchmark, Luxmark uses slg to compute OpenCL .
Its used by Luxrender and Blender (with slg) in real life to render gpu accell raytraycing.
Visit http://www.luxrender.net/en_GB/index to get more informations.
Luxmark has focus on benching, not raytracing for production!
Posted 09 July 2012 - 02:28 PM
I read that since OSX 10.7.4, there is a huge OpenCL performance boost for all ATI cards - is this correct? So it would be worth a thought to upgrade to 10.7.4 now?
Posted 09 July 2012 - 08:52 PM
I get same OpenCL speed since 10.6 (now 10.7.5 dev) with Nvidia 9600 GT. AMD is same for lowend cards - only a bit more bugs (OpenCl apps didnt work correct) were fixed (OpenCl on AMD makes more probs that nvidia)
Blender needs an slg (smart lux gpu) plugin. You get it from the luxrender page (with install instruktions).
Posted 10 July 2012 - 08:07 AM
Posted 10 July 2012 - 09:40 AM
Maybe some more informations (older install way) may help to understand how to install that.
If problems you can use the Luxrender Forum:
Posted 11 July 2012 - 12:39 AM
Posted 12 July 2012 - 01:15 AM
Just upgraded to Mountain Lion RTM but no CL. According to netkas it should be working out of the box. I have nvidia Quadro 1000M 1GB.
I got error 2012-07-12 03:10:24 - RUNTIME ERROR: PathOCL kernel compilation error
Any ideas ?
575] Chipset Model: Quadro 1000M
575] Type: GPU
575] Bus: PCIe
575] Slot: Slot-1
575] PCIe Lane Width: x16
575] VRAM (Total): 1024 MB
575] Vendor: NVIDIA (0x10de)
575] Device ID: 0x0dfa
575] Revision ID: 0x00a1
575] ROM Revision: 70.08.50.00.04
Posted 12 July 2012 - 05:16 AM
Posted 12 July 2012 - 07:15 AM
Check other OS X OpeCL benches like OceanWave ....
doesnt work either "Error Failed to initialize OpenCL mostly by OpenCL driver didn't knw your gpu ...."
Worked with 10.7.x
Posted 12 July 2012 - 11:49 AM
Some kind of gpus, which apple doesn support official may not work with OpenCL even with later updates.
So your problem maybe cannot fixed with the known OpenCL patch.
Does OpenCL info (very lowlevel+easy access to OpenCL driver) works ?
It shows (run in Terminal )some Infos about available OpenCL devices.
At least CPU is shown as OpenCL device (0) - if also gpu shown as OpenCL device (1,....) your problem may get fixed with later driver updates. If OpenCL Info fails (only CPU info) you may not get that fixed ever.
OpenCL Info is within the OpenCL OceanWave (show package content..., ./resources/oclinfo )
Posted 12 July 2012 - 12:49 PM
Upgrading to 10.8 was easy but I have a few issues now. I think to go back to 10.7.5.
Power management (Sleep) doesnt work, Cuda and OpenCL doesnt work.
I have patched Intel Power Management Problems is I think something with P-States because I get error 18 but I will ask in other forum cause
its too offtopic. (Sleep works - but wake up stops screen is corrupted or freezed mouse works)
Posted 13 July 2012 - 12:26 AM
Name: Quadro 1000M
Device Version: OpenCL 1.1
Driver Version: CLH 1.0
Compute Units: 2
Work Group Size: 1024
Clock: 1400 MHz
Global Memory: 2048 MB
Only OpenCL1.1 ... ?
Posted 13 July 2012 - 08:23 AM
Posted 23 July 2012 - 02:33 PM
Posted 26 July 2012 - 05:40 PM
v2 Beta2 new scene room, GTX285 room only ... =127 :-(
and sala = 261 ... :-(
Posted 02 August 2012 - 02:09 PM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users