Hello,
Wait, I think there is some confusion. The argument for OpenCL compilation
is "rt -z1" or "rt -z".
I think it is the second one.
Since "*rcc"* has not been ported yet, I am just creating "*sph*" and using
"rt -z" command:
When I try this, it says
> *Planning to run with 8 processors*
>
> */usr/brlcad/dev-7.26.1/bin/rt -M -z -u*
>
> *opendb model;*
> *tree /home/**path_to_build**/mick1.g shapes.r; *
>
> *rt: rt_dirbuild(model) failure *
>
*Raytrace failed.*
>
Is there any example (with the commands) to run opencl raytracing?
Regards
Shailesh
Shailesh Tripathi
B.Tech. Part-IV
Electronics Engineering
IIT-BHU (Varanasi)
On Thu, Mar 30, 2017 at 7:49 PM, Shailesh Tripathi <
shailesh.tripathi.ec...@itbhu.ac.in> wrote:
> Hello,
> Sorry for the late reply. As I said I got busy with my exams.
>
>> You should see a consistent difference in performance, but this would
>> require compiling and installing both with and without OpenCL support to
>> make sure the same compilation options are being used.
>>
> I don't exactly understand by what you meant by compiling in OpenCL. Right
> now, I am just following the raytrace tutorial. The command are as follows
> (n order):
>
> i
>>
>>
>>
>>
>>
>> *n sph.s sph 4 4 4 3in rcc.s rcc 4 4 0 0 0 4 3draw sph.s rcc.sr shapes.r
>> u sph.s u rcc.smater shapes.r plastic 0 255 0 0B shapes.rrt*
>>
> This gives the raytrace output in the frame buffer
> But in the output log there is nothing like "PREP" as you said.
> Also for openCL raytracing, I am simply using "rt -z1" in place of the
> "rt" command. But still the output log is exact same with no signs of
> OpenCL compilation.
>
> Please tell me how and what exactly to do for OpenCL compilation.
>
> Regards
> Shailesh
>
>
> Shailesh Tripathi
> B.Tech. Part-IV
> Electronics Engineering
> IIT-BHU (Varanasi)
>
> On Tue, Mar 28, 2017 at 9:24 PM, Vasco Alexandre da Silva Costa <
> vasco.co...@gmail.com> wrote:
>
>> On Tue, Mar 28, 2017 at 2:57 AM, Christopher Sean Morrison <
>> brl...@mac.com> wrote:
>>
>>>
>>> > On Mar 27, 2017, at 8:01 PM, Shailesh Tripathi <
>>> shailesh.tripathi.ec...@itbhu.ac.in> wrote:
>>> >
>>> > Finally, now all the errors are resolved. deviceQuery' is working fine
>>> with CUDA which hints that OpenCL is also setup.
>>> > Now, as I told the 'rt' command and 'rt and 'rt -z1' gives
>>> quantitatively equal results.
>>> > How can I make sure that 'rt -z1' is making use of GPU?
>>>
>>> You should see a consistent difference in performance, but this would
>>> require compiling and installing both with and without OpenCL support to
>>> make sure the same compilation options are being used.
>>>
>>> Another tell-tale sign is that the OpenCL path does not yet handle
>>> booleans. If you render the havoc sample model, does it look like the
>>> rendering here http://brlcad.org/wiki/User:Vasco.costa/GSoC15/logs ?
>>>
>>> Last but not least, it should say "Compiling OpenCL programs...” and
>>> “OCLPREP” instead of “PREP” in the output.
>>>
>>
>> Yes, the easiest way to know for sure is to look at the console log
>> output.
>>
>> --
>> Vasco Alexandre da Silva Costa
>> PhD in Computer Engineering (Computer Graphics)
>> Instituto Superior Técnico/University of Lisbon, Portugal
>>
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>>
>
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