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.clbot_shot.clehy_shot.clell_shot.clsph_shot.clrec_shot.cltgc_shot.cltor_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.
> 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
>>
>> ------------------------------------------------------------------------------
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>
>
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> Accelerate data analysis in your applications with
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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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