Intel oneAPI Toolkit Samples

The oneAPI-samples repository provides code samples for Intel oneAPI toolkits.

We recommend checking out a specific release version of the repository. View available releases.

The latest versions of code samples on the master branch are not guaranteed to be stable.

Code Samples

Code Sample	Supported Intel® Architecture(s)	Description
../AI-and-Analytics/End-to-end-Workloads/
../Census	GPU, CPU	This sample code demonstrates how to seamlessly run the end-to-end census workload using the AI Analytics toolkit without any external dependencies.
../LidarObjectDetection-PointPillars	GPU, CPU	How to combine Intel® Distribution of OpenVINO™ toolkit and Intel® oneAPI to offload the computation of a complex workload to one of Intel's supported accelerators
../AI-and-Analytics/Features-and-Functionality/
../IntelPyTorch_Extensions_AutoMixedPrecision	CPU	You will learn how to download, compile, and get started with Intel Extension for PyTorch from this sample code.
../IntelPyTorch_TorchCCL_Multinode_Training	CPU	How to perform distributed training with oneCCL in PyTorch
../IntelPython_XGBoost_Performance	CPU	How to analyze the performance benefit from using Intel optimizations upstreamed by Intel to the latest XGBoost compared to un-optimized XGBoost 0.81
../IntelPython_XGBoost_daal4pyPrediction	CPU	How to analyze the performance benefit of minimal code changes to port pre-trained XGBoost model to daal4py prediction for much faster prediction than XGBoost prediction
../IntelPython_daal4py_DistributedKMeans	CPU	Distributed oneDAL K-Means programming model for Intel CPU
../IntelPython_daal4py_DistributedLinearRegression	CPU	Distributed oneDAL Linear Regression programming model for Intel CPU
../IntelTensorFlow_Horovod_Multinode_Training	CPU	Shows how to get started with scaling out a neural network's training in TensorFlow on multiple compute nodes in a cluster.
../IntelTensorFlow_InferenceOptimization	CPU	Optimize a pre-trained model for a better inference performance
../IntelTensorFlow_ModelZoo_Inference_with_FP32_Int8	CPU	Show how to efficiently execute, train, and deploy Intel-optimized models
../IntelTensorFlow_PerformanceAnalysis	CPU	Contains two Jupyter notebooks from Intel Model Zoo to help users analyze the performance difference between Stock Tensorflow and Intel Tensorflow.
DirectPrograming/C++/
../CombinationalLogic/Mandelbrot	CPU	Demonstrates how to accelerate Mandelbrot performance with SIMD and parallelization using OpenMP*.
../CompilerInfrastructure/Intrinsics	CPU	Shows how to utilize the intrinsics supported by C++ compiler in a variety of applications.
../GraphTraversal/Mergesort	CPU	Shows how to accelerate scalar merge sort program using OpenMP tasks
../Jupyter/OpenMP-offload-training	CPU	How to offload the computation to GPU using OpenMP with the Intel® C++ Compiler
../ParallelPatterns/openmp_reduction	GPU, CPU	How to run openMP on cpu as well as GPU offload
../StructuredGrids/iso3dfd_omp_offload	CPU	How to offload the computation to GPU using Intel® oneAPI DPC++/C++ Compiler
DirectPrograming/DPC++/
../CombinationalLogic/mandelbrot	GPU, CPU	Example of a fractal in mathematics
../CombinationalLogic/sepia-filter	GPU, CPU	Color image conversion using 1D range
../DenseLinearAlgebra/complex_mult	GPU, CPU	Complex number Multiplication
../DenseLinearAlgebra/matrix_mul	GPU, CPU	Simple program that multiplies two large matrices in parallel using DPC++, OpenMP and MKL
../DenseLinearAlgebra/simple-add	FPGA, GPU, CPU	Simple Add program
../DenseLinearAlgebra/vector-add	FPGA, GPU, CPU	Simple Vector add program
../GraphAlgorithms/all-pairs-shortest-paths	GPU, CPU	The All Pairs Shortest Paths sample demonstrates the following using the Intel® oneAPI DPC++/C++ Compiler
../GraphTraversal/bitonic-sort	GPU, CPU	Implementation of bitonic sort using DPC++.
../Jupyter/oneapi-essentials-training	GPU, CPU	Collection of Notebooks used ine the oneAPI Essentials training course
../MapReduce/MonteCarloPi	GPU, CPU	How to utilize the DPC++ reduction extension
../N-BodyMethods/Nbody	GPU, CPU	An N-body simulation is a simulation of a dynamical system of particles, usually under the influence of physical forces, such as gravity. This nbody sample code is implemented using C++ and DPC++ language for Intel CPU and GPU.
../ParallelPatterns/PreFixSum	GPU, CPU	Implement bitonic sort using Intel DPC++ compiler
../ParallelPatterns/dpc_reduce	GPU, CPU	A simple program that calculates pi, implemented using C++ and DPC++.
../ParallelPatterns/histogram	GPU, CPU	This sample demonstrates a histogram that groups numbers together and provides the count of a particular number in the input
../ParallelPatterns/loop-unroll	GPU, CPU	The Loop Unroll demonstrates a simple example of unrolling loops to improve the throughput of a DPC++ program for GPU offload.
../ProjectTemplatesmakefile-gpu	GPU	A "Hello, world" Linux Makefile project for GPU
../ProjectTemplatesmakefile-fpga	FPGA	A "Hello, world" Linux Makefile project for FPGA
../ProjectTemplatescmake-gpu	GPU	A "Hello, world" Linux CMake project for GPU
../ProjectTemplatescmake-fpga	FPGA	A "Hello, world" Linux CMake project for FPGA
../ProjectTemplatesHello_World_GPU	GPU	A "Hello, world" Windows Visual Studio project for GPU
../SparseLinearAlgebra/merge-spmv	GPU, CPU	Sparse Matrix Vector sample provides a parallel implementation of a merge based sparse matrix and vector multiplication algorithm using DPC++.
../SpectralMethods/Discrete-cosine-transform	GPU, CPU	Image processing algorithm used in JPEG compression
../StructuredGrids/1d_HeatTransfer	GPU, CPU	A simulation of one dimensional heat transfer process using DPC++.
../StructuredGrids/ISO2DFD_DPCPP	GPU, CPU	A simple finite difference stencil kernel for solving 2D acoustic isotropic wave equation using DPC++
../StructuredGrids/ISO3DFD_DPCPP	GPU, CPU	A finite difference stencil kernel for solving 3D acoustic isotropic wave equation using DPC++
../StructuredGrids/Particle-diffusion	GPU, CPU	A simple implementation of a Monte Carlo simulation of the diffusion of water molecules in tissue
DirectPrograming/DPC++FPGA/ReferenceDesigns/
../crr	FPGA	High-performance CRR binomial tree option pricing model using DPC++ on FPGA
../db	FPGA	High-performance database query acceleration for FPGA-attached memory using DPC++
../gzip	FPGA	High-performance GZIP compression using DPC++ on FPGA
../mvdr_beamforming	FPGA	High-performance radar beamforming for streaming data using DPC++ on FPGA
../qrd	FPGA	High-performance QR decomposition of matrices using DPC++ on FPGA
DirectPrograming/DPC++FPGA/Tutorials/Design Patterns/
../buffered_host_streaming	FPGA	Tutorial demonstrating how to create a high-performance full system CPU-FPGA design using SYCL USM.
../DesignPatterns/compute_units	FPGA	Tutorial showing how to efficiently make multiple copies of a kernel, called compute units
../compute_units	FPGA	Ttutorial showcases a design pattern that allows you to make multiple copies of a kernel, called compute units. }
../double_buffering	FPGA	Tutorial demonstrating how to overlap kernel execution with buffer transfers and host processing
../explicit_data_movement	FPGA	Tutorial showing an alternative coding (explicit USM) in which data movement between host and device is controlled explicitly in code
../io_streaming	FPGA	Tutorial describing how to use DPC++ IO pipes to stream data through the FPGA's IO
../loop_carried_dependency	FPGA	Tutorial demonstrating how to remove a loop-carried dependency to improve the performance of the FPGA device code
../n_way_buffering	FPGA	Tutorial demonstrating how to extend double buffering to n-way buffering
../onchip_memory_cache	FPGA	Tutorial explaining the caching of on-chip memory to reduce loop initiation interval on FPGA
../optimize_inner_loop	FPGA	Tutorial explaining how to optimize the throughput of an inner loop with a low trip count
../pipe_array	FPGA	Tutorial showing how to create an array of pipes
../shannonization	FPGA	Tutorial explaining an optimization for removing computation from the critical path
../simple_host_streaming	FPGA	Tutorial showing how to use SYCL Universal Shared Memory (USM) to stream data between the host and FPGA device and achieve low latency while maintaining throughput.
../triangular_loop	FPGA	Tutorial explaining an advanced FPGA optimization technique for triangular loops
../zero_copy_data_transfer	FPGA	Tutorial demonstrating how to use zero-copy host-device memory transfer for FPGA kernels with no temporal data reuse
DirectPrograming//DPC++FPGA/Tutorials/Features/
../fpga_reg	FPGA	Tutorial demonstrating the use of the DPC++ FPGA power user extension intel::fpga_reg
../kernel_args_restrict	FPGA	Tutorial demonstrating how to avoid performance penalties due to kernel argument aliasing
../loop_coalesce	FPGA	Tutorial demonstrating the DPC++ FPGA loop_coalesce attribute
../loop_initiation_interval	FPGA	Tutorial demonstrating the use of the intel::initiation_interval attribute to improve performance
../loop_ivdep	FPGA	Tutorial demonstrating the use of the loop ivdep attribute
../loop_unroll	FPGA	Tutorial demonstrating the DPC++ unroll pragma and its performance trade-offs on FPGA
../lsu_control	FPGA	Tutorial demonstrating how to configure the load-store units (LSUs) in your DPC++ program for FPGA
../max_concurrency	FPGA	Tutorial demonstrating the DPC++ FPGA max_concurrency attribute
../max_interleaving	FPGA	Tutorial demonstrating the DPC++ FPGA max_interleaving attribute
../memory_attributes	FPGA	Tutorial demonstrating how to use DPC++ FPGA memory attributes
../pipes	FPGA	Tutorial demonstrating the DPC++ FPGA pipes extension to transfer data between kernels
../speculated_iterations	FPGA	Tutorial demonstrating the DPC++ FPGA speculated_iterations attribute
../stall_enable	FPGA	Tutorial demonstrating the use of the intel::use_stall_enable_clusters attribute
DirectPrograming/DPC++FPGA/Tutorials/GettingStarted/
../fast_recompile	FPGA	Tutorial introducing host-only recompile to save DPC++ development time on FPGA
../fpga_compile	FPGA	Tutorial introducing how to compile DPC++ for FPGA
DirectPrograming/DPC++FPGA/Tutorials/tools/
../dynamic_profiler	FPGA	Tutorial showing how to use the Intel® FPGA Dynamic Profiler for DPC++ for detailed FPGA kernel profiling
../system_profiling	FPGA	Tutorial showing how to use the OpenCL Intercept Layer to profile DPC++ designs running on FPGA at the system level
../use_library	FPGA	Tutorial showing how to use cross-language libraries in DPC++ on FPGA
DirectProgramming/Fortran/
../CombinationalLogic/openmp-primes/	GPU, CPU
../DenseLinearAlgebra/optimize-integral/	GPU, CPU	Optimization using the Intel® Fortran compiler
../DenseLinearAlgebra/vectorize-vecmatmult/	GPU, CPU	Vectorization using Intel Fortran compiler
../Jupyter/OpenMP-offload-training/	GPU, CPU	Collection of Jupyter notebooks that were developed to teach OpenMP Offload.
Libraries/oneCCL/
../tutorials/oneCCL_Getting_Started	GPU, CPU	port an Intel® oneAPI Collective Communications Library (oneCCL) sample from CPU to GPU
Libraries/oneDAL/
../IntelPython_daal4py_Distributed_Kmeans/	CPU	shows how to train and predict with a distributed k-means model using the python API package daal4py for oneAPI Data Analytics Library.
../IntelPython_daal4py_Distributed_LinearRegression	CPU	daal4py is a simplified API to Intel® DAAL that allows for fast usage of the framework suited for Data Scientists or Machine Learning users
../IntelPython_daal4py_Getting_Started	CPU	how how to do batch linear regression using the python API package daal4py from oneDAL.
Libraries/oneDNN/
../dpcpp_interoperability	GPU, CPU	emonstrates programming for Intel® Processor Graphics with SYCL extensions API in oneDNN
../getting_started	GPU, CPU	Running a simple convolutional model on Intel CPU or Intel GPU
../simple_model	GPU, CPU	Running a simple convolutional model on Intel CPU or Intel GPU
../Tutorials	GPU, CPU	Series of Jupyer notebook tutorials on oneDNN
Libraries/oneDPL/
../Gamma-correction	GPU, CPU	gamma correction using Parallel STL
../Stable_sort_by_key	GPU, CPU	stable sort by key using counting_iterator and zip_iterator
Libraries/oneMKL/
../black_scholes	GPU, CPU	Shows how to use oneMKL's Vector Math (VM) and Random Number Generator (RNG) functionality to calculate the prices of options using the Black-Scholes formula for suitable randomly-generated portfolios.
../block_cholesky_decomposition	GPU, CPU	Shows how to use the oneMKL library's BLAS and LAPACK functionality to solve a symmetric, positive-definite block tridiagonal linear equation.
../block_lu_decomposition	GPU, CPU	Shows how to use the oneMKL library's BLAS and LAPACK functionality to solve a block tridiagonal linear equation.
../computed_tomography	GPU, CPU	Shows how to use the oneMKL library's DFT functionality to simulate computed tomography (CT) imaging.
../fourier_correlation	GPU, CPU	Shows how to implement a 1D Fourier correlation using oneMKL kernel functions.
../matrix_mul_mkl	GPU, CPU	Shows how to use the oneMKL's optimized matrix multiplication routines.
../monte_carlo_european_opt	GPU, CPU	Shows how to use the oneMKL library's random number generation (RNG) functionality to compute European option prices.
../monte_carlo_pi	GPU, CPU	Shows how to use the oneMKL library's random number generation (RNG) functionality to estimate the value of π.
../random_sampling_without_replacement	GPU, CPU	hows how to use the oneMKL library's random number generation (RNG) functionality to generate K>>1 simple random length-M samples without replacement
../sparse_conjugate_gradient	GPU, CPU	Shows how to use the oneMKL library's sparse linear algebra functionality to solve a sparse, symmetric linear system using the (preconditioned) conjugate gradient method.
../student_t_test	GPU, CPU	Shows how to use the oneMKL library's Vector Statistics functionality to decide if the null hypothesis should be accepted or rejected.
Libraries/oneTBB/
../tbb-async-sycl	GPU, CPU	Show the computational kernel can be split for execution between CPU and GPU using TBB Flow Graph asynchronous node and functional node.
../tbb-resumable-tasks-sycl	GPU, CPU	Show the computational kernel can be split for execution between CPU and GPU using TBB resumable task and parallel_for.
../tbb-task-sycl	GPU, CPU	Show two TBB tasks can execute similar computational kernels, with one task executing the SYCL code and the other task executing the TBB code.
Libraries//oneVPL/
../dpcpp-blur	CPU	How to use oneVPL and DPC++ to convert I420 raw video files into BGRA and blur each frame
../hello-decode	CPU	shows how to use oneVPL to perform a simple video decode
../hello-encode	CPU	shows how to use oneVPL to perform a simple video encode
../oneVPL/hello-vpp	CPU	How to use oneVPL to resize an I420 raw video file
Tools/ApplicationDebugger/
../Debugger/array-transform	GPU, CPU	Array transform
Tools/IoTConnectionTools/
../Analog-in	CPU	Analog pin input example using Eclipse* MRAA
../aws-pub-sub	CPU	A sample that could be used for a quick test of Amazon cloud libraries.
../azure-iothub-telemetry	CPU	A sample demonstrating how to send messages from a single device to Microsoft Azure IoT Hub via a selected protocol.
../digital-in	CPU	GPIO pin input example using Eclipse* MRAA
../digital-out	CPU	GPIO pin output example using Eclipse* MRAA
../hello-iot-world	CPU	Basic example that prints the compiler used during build
../ibm-device	CPU	CPU
../Interrupt	CPU	Interrupt Service Routine example using Eclipse* MRAA
../Onboard-Blink	CPU	Built-in LED blink for common IoT boards using Eclipse* MRAA
../PWM	CPU	Pulse Width Modulation pin output using Eclipse* MRAA
../Up2 LEDs	CPU	Built-in LED example for UP* Squared using Eclipse* MRAA
Tools/Migration/
../folder-options-dpct	CPU	How to migrate more complex projects and use options for DPC++ Compatibility Tool (dpct)
../rodinia-nw-dpct	CPU	How to migrate a Make/CMake project from CUDA to Data Parallel C++ using the Intel DPC++ Compatibility Tool.
../vector-add-dpct	CPU	how to migrate a simple program from CUDA to Data Parallel C++ using the Intel DPC++ Compatibility Tool.
Tools/VTuneProfiler/
../matrix_multiply_vtune	CPU	A sample containing multiple implementations of matrix multiplication. This sample code is implemented using DPC++ language for CPU and GPU.

License

Code samples are licensed under the MIT license. See License.txt for details.

Third party program Licenses can be found here: third-party-programs.txt

Known Issues or Limitations

On Windows Platform

• If you are using Visual Studio 2019, Visual Studio 2019 version 16.4.0 or newer is required.
• Windows support for the FPGA code samples is limited to the FPGA emulator and optimization reports. Compile targets for FPGA hardware are provided on Linux only. See any FPGA code sample for more details.
• If you encounter a compilation error when building a sample program, such as the example error below, the directory path of the sample may be too long. The work around is to move the sample to a directory such as "c:\temp\sample_name".
  • Example error: Error MSB6003 The specified task executable "dpcpp.exe" could not be run .......

Contribute

See CONTRIBUTING for more information.