I'll warn you in advance my written english it is not good, so please have some patience because I'll do a lot of errors. I need to expose the graphic card in order to do some benchmark with parallel algorithms on finite element analysis. I downloaded the intel sdk at this link https://software.intel.com/en-us/intel-opencl . I am using Ubuntu 16.10, so i followed all the instruction as explained in this post https://streamcomputing.eu/blog/2011-06-24/install-opencl-on-debianubuntu-orderly/ . When i run a simple algorithm wich checks all the device, it only recognizes the cpu, failing to find the graphic card. The same program works well on a mac (because OpenCL is in the stack of course).
// includes...
int main(int argc, const char * argv[])
{
// See what standard OpenCL sees
std::vector<cl::Platform> platforms;
// Get platform
cl::Platform::get(&platforms);
// Temp
std::string s;
// Where the GPU lies
cl::Device gpudevice;
// Found a GPU
bool gpufound = false;
std::cout << "**** OPENCL ****" << std::endl;
// See if we have a GPU
for (auto p : platforms)
{
std::vector<cl::Device> devices;
p.getDevices(CL_DEVICE_TYPE_ALL, &devices);
for (auto d : devices)
{
std::size_t i = 4;
d.getInfo(CL_DEVICE_TYPE, &i);
std::cout << "> Device type " <<
(i & CL_DEVICE_TYPE_CPU ? "CPU" : "") <<
(i & CL_DEVICE_TYPE_GPU ? "GPU" : "") <<
(i & CL_DEVICE_TYPE_ACCELERATOR ? "ACCELERATOR" : "");
if (i & CL_DEVICE_TYPE_GPU)
{
gpudevice = d;
gpufound = true;
}
std::cout << " Version " << s << std::endl;
}
}
if (!gpufound)
{
std::cout << "NO GPU FOUND. ABORTING." << std::endl;
return 1;
}
// Do other things...
the output is:
/home/andrea/Dropbox/fem/SiNDy/clfem/cmake-build-debug/vector_sycl
**** OPENCL ****
> Device type CPU Version
NO GPU FOUND. ABORTING.
Process finished with exit code 1
I tried to add the current user in the video group, i also tried to install Intel Media Server Studio following the instructions coming with the package but I could not build the kernel because of some compile errors. I also updated all the drivers with the automatic software update of Ubuntu, but still the GC is not found.
