You need to make sure OpenCL is enabled with 'cmake' (e.g. using
'cmake-gui'), regenerate the Makefiles, and recompile the code with 'make'.
Plus it's "rt -z1".
On Fri, Mar 31, 2017 at 8:58 PM, Shailesh Tripathi <
shailesh.tripathi.ec...@itbhu.ac.in> wrote:
> After setting the environment variables correctly, clinfo and
> vector_addition codes are working fine. But the error with "rt -z" is the
> same.
> Do I need to set any other configuration paths?
> How does rt detect opencl?
>
> Regards
> Shailesh
>
>
> Shailesh Tripathi
> B.Tech. Part-IV
> Electronics Engineering
> IIT-BHU (Varanasi)
>
> On Thu, Mar 30, 2017 at 9:45 PM, Vasco Alexandre da Silva Costa <
> vasco.co...@gmail.com> wrote:
>
>> If OpenCL isn't detected on your system, the OpenCL backend won't be used.
>>
>> Did you check if OpenCL is properly installed in your system with
>> 'clinfo'?
>>
>> On Thu, Mar 30, 2017 at 3:48 PM, Shailesh Tripathi <
>> shailesh.tripathi.ec...@itbhu.ac.in> wrote:
>>
>>> 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
>>>>>
>>>>> ------------------------------------------------------------
>>>>> ------------------
>>>>> Check out the vibrant tech community on one of the world's most
>>>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>>>> _______________________________________________
>>>>> BRL-CAD Developer mailing list
>>>>> brlcad-devel@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/brlcad-devel
>>>>>
>>>>>
>>>>
>>>
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>>>
>>
>>
>> --
>> 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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>
--
Vasco Alexandre da Silva Costa
PhD in Computer Engineering (Computer Graphics)
Instituto Superior Técnico/University of Lisbon, Portugal
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