Low Latency – Small data-sizes, low response times.

Intel – XeonPhi Accelerators, Xeon CPUs.

HPC – High Level Programming – Directives and C++.

AMD – HIPified CUDA for HSA-enabled GPUs.

HPC – Explicit Programming – Accelerated applications and simulations.

You can click on the logos of the Programming APIs and Hardware Brands. Queue.The below technologies we have experience with and can use them to program CPUs, GPUs, FPGAs and DSPs. read result C from the device to array C Queue.enqueueNDRangeKernel(kernel_add,cl::NullRange,cl::NDRange(10),cl::NullRange) *cl::Kernel kernel_add=cl::Kernel(program,'simple_add') Queue.enqueueWriteBuffer(buffer_B,CL_TRUE,0,sizeof(int)*10,B) Ĭl::KernelFunctor simple_add(cl::Kernel(program,'simple_add'),queue,cl::NullRange,cl::NDRange(10),cl::NullRange) Queue.enqueueWriteBuffer(buffer_A,CL_TRUE,0,sizeof(int)*10,A) create queue to which we will push commands for the device.Ĭl::CommandQueue queue(context,default_device) So platform can be from Nvidia, Intel, AMD. This is actually a driver you had previously installed. At start we need to get one of the OpenCL platforms. For our simple sample we will need only two headers: #include Įverything else will happen inside main function. We will create simple console program which will use OpenCL to sum two arrays like C=A+B. Or you can simply write hard-coded path to OpenCL library: LIBS+=/usr/./libOpenCL.so You can also manually set path to OpenCL library path: LIBS+= -Lpath_to_openCL_libraries If you get any errors you need to adjust system variable to point to folder of OpenCL installation. In case of QtCreator add next line into the.

pro file: QMAKE_CXXFLAGS += -std=c++0xĪlso don't forget to use OpenCL library.

If not then simply download C++ binding to folder of your project. To ease everything we will use OpenCL C++ binding 1.1 from manual for this binding is available at It might happen that cl.hpp is already installed at your computer. I recommend that you continue with the next step and if anything will go wrong return to this step and install the needed OpenCL SDK toolkits. In some cases the graphic drivers already include all the files you need.

AMD has for CPU's and their GPU's AMD APP. We want to sum two arrays together.Īt first you need to install the OpenCL libraries and other files. To begin programming in OpenCL is always hard. Tutorial: Simple start with OpenCL and C++

Opencl tutorial