Yes, there was an error message on the terminal. Manually copying
everything to my current directory worked. Compilation starts but throws a
"pixel fb_write error". I think this is from rt/do.c from clt_run().
I'm really unfamiliar with this bit of code. Any idea how to fix this?
On Thu 17 Mar, 2016, 2:05 AM Vasco Alexandre da Silva Costa, <
vasco.co...@gmail.com> wrote:
> I meant of course "failed to read OpenCL code file (solver.cl)".
>
> On Wed, Mar 16, 2016 at 8:32 PM, Vasco Alexandre da Silva Costa <
> vasco.co...@gmail.com> wrote:
>
>> On Wed, Mar 16, 2016 at 8:26 PM, Vasco Alexandre da Silva Costa <
>> vasco.co...@gmail.com> wrote:
>>
>>> On Wed, Mar 16, 2016 at 8:15 PM, Param Hanji <param.catchch...@gmail.com
>>> > wrote:
>>>
>>>> Hi Vasco Costa,
>>>>
>>>> Yes -z 1 did it. :)
>>>>
>>>> Now fopen() throws an error! Function clt_read_code() in
>>>> primitiive_util.c fopen() returns a NULL. I included <errno.h> and printed
>>>> the error as described here
>>>>
>>>>
>>>> http://stackoverflow.com/questions/8633909/what-is-the-reason-for-fopens-failure-to-open-a-file
>>>>
>>>> The error is 2 which means "No such file or directory" according to
>>>>
>>>> http://www.thegeekstuff.com/2010/10/linux-error-codes/
>>>>
>>>> This is rather puzzling because I can see solver.cl present in the
>>>> same directory as primitive_util.c. Moreover, fopen() is a function that
>>>> I've used time and time again and I haven't this kind of error before. I
>>>> also verified that the file has read access.
>>>>
>>>> Thank you for your patience! I'm just running into issue after issue. I
>>>> really appreciate your guidance.
>>>>
>>>
>>> Yeah the OpenCL support is kind of experimental. More than half of the
>>> trouble is getting OpenCL itself to be properly configured on your system.
>>> I expect the distros to eventually get that right but it's sure taking a
>>> while.
>>>
>>> I know what's the problem here. It's searching for the .cl files to
>>> compile at run-time. The .cl files are supposed to be installed to some
>>> directory in the current path.
>>>
>>> Just manually copy or link the .cl files to your current directory '.'.
>>> The list of .cl files you need to copy or link to is:
>>> solver.cl
>>>
>>> arb8_shot.cl
>>> bot_shot.cl
>>> ehy_shot.cl
>>> ell_shot.cl
>>> sph_shot.cl
>>> rec_shot.cl
>>> tgc_shot.cl
>>> tor_shot.cl
>>>
>>> rt.cl
>>>
>>
>>
>>> The current paths should be something like librt/primitives/*.cl ,
>>> librt/primitives/*/*_shot.cl
>>> You should just place them all in the current directory.
>>>
>>
>> PS: This should be improved with some kind of smart way to find the
>> directory where the files are in, or at least by looking the directory up
>> in an environment variable, but the current clt_init and clt_read_code
>> aren't that smart. You should have got some output error message like
>> "failed to read OpenCL code file (solver.c)".
>>
>>
>>>
>>>
>>>> Best,
>>>> Param
>>>>
>>>> On Thu, Mar 17, 2016 at 1:15 AM Vasco Alexandre da Silva Costa <
>>>> vasco.co...@gmail.com> wrote:
>>>>
>>>>> On Wed, Mar 16, 2016 at 7:36 PM, Vasco Alexandre da Silva Costa <
>>>>> vasco.co...@gmail.com> wrote:
>>>>>
>>>>>> On Wed, Mar 16, 2016 at 7:28 PM, Param Hanji <
>>>>>> param.catchch...@gmail.com> wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> Installing the AMD SDK gave me OpenCL 1.2 support. I managed to
>>>>>>> configure cmake using cmake-gui and built successfully. But raytrace
>>>>>>> still
>>>>>>> doesn't happen on my GPU. By adding fprintf statements, I found out that
>>>>>>> execution does indeed enter the #ifdef USE_OPENCL block at rt/main.c.
>>>>>>> However the if following block (if (opencl_mode)) is not entered.
>>>>>>>
>>>>>>> opencl_mode is set at opt.c at case: 'z'. I still don't know why its
>>>>>>> value doesn't change even if use -z option.
>>>>>>>
>>>>>>
>>>>>> I think it is '-z 1'. The '-z' option currently requires a numeric
>>>>>> argument.
>>>>>> '1' to enable OpenCL mode and '0' to disable it.
>>>>>>
>>>>>
>>>>> The code is like this (opt.c):
>>>>>
>>>>> case 'z':
>>>>> opencl_mode = atoi( bu_optarg );
>>>>> break;
>>>>>
>>>>> I did it this way because I added a toggle button in the MGED File ->
>>>>> Raytrace panel where you can enable or disable OpenCL mode. The toggle is
>>>>> either '0' or '1' depending on its status.
>>>>>
>>>>> --
>>>>> Vasco Alexandre da Silva Costa
>>>>> PhD in Computer Engineering (Computer Graphics)
>>>>> Instituto Superior Técnico/University of Lisbon, Portugal
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Transform Data into Opportunity.
>>>>> Accelerate data analysis in your applications with
>>>>> Intel Data Analytics Acceleration Library.
>>>>> Click to learn more.
>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140
>>>>> _______________________________________________
>>>>> BRL-CAD Developer mailing list
>>>>> brlcad-devel@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/brlcad-devel
>>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Transform Data into Opportunity.
>>>> Accelerate data analysis in your applications with
>>>> Intel Data Analytics Acceleration Library.
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>>>>
>>>>
>>>
>>>
>>> --
>>> Vasco Alexandre da Silva Costa
>>> PhD in Computer Engineering (Computer Graphics)
>>> Instituto Superior Técnico/University of Lisbon, Portugal
>>>
>>
>>
>>
>> --
>> Vasco Alexandre da Silva Costa
>> PhD in Computer Engineering (Computer Graphics)
>> Instituto Superior Técnico/University of Lisbon, Portugal
>>
>
>
>
> --
> Vasco Alexandre da Silva Costa
> PhD in Computer Engineering (Computer Graphics)
> Instituto Superior Técnico/University of Lisbon, Portugal
>
> ------------------------------------------------------------------------------
> Transform Data into Opportunity.
> Accelerate data analysis in your applications with
> Intel Data Analytics Acceleration Library.
> Click to learn more.
> http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140
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> BRL-CAD Developer mailing list
> brlcad-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/brlcad-devel
>
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