dpc_gemm

DPC++ GEMM

Overview

This sample application performs general matrix multiplication using DPC++ on CPU or GPU, so it can be used as a target for OpenCL(TM) and Level Zero profiling and tracing tools.

DPC++ Matrix Multiplication (matrix size: 1024 x 1024, repeats 4 times)
Target device: Intel(R) Gen9
Matrix multiplication time: 0.0429941 sec
Results are CORRECT with accuracy: 4.90573e-06
Matrix multiplication time: 0.0431165 sec
Results are CORRECT with accuracy: 4.90573e-06
Matrix multiplication time: 0.0433001 sec
Results are CORRECT with accuracy: 4.90573e-06
Matrix multiplication time: 0.0428462 sec
Results are CORRECT with accuracy: 4.90573e-06
Total execution time: 0.373728 sec

Supported OS

• Linux
• Windows

Prerequisites

• CMake (version 3.12 and above)
• Git (version 1.8 and above)
• Python (version 2.7 and above)
• Intel(R) oneAPI Base Toolkit

Build and Run

Linux

Run the following commands to build the sample ((make sure you have oneAPI DPC++ Compiler in PATH for building)):

source <inteloneapi>/setvars.sh
cd <pti>/samples/dpc_gemm
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make

Use this command line to run the application:

./dpc_gemm [cpu|gpu|host] [matrix_size] [repeat_count]

Windows

Use Microsoft* Visual Studio x64 command prompt to run the following commands and build the sample (make sure you have oneAPI DPC++ Compiler in PATH for building):

<inteloneapi>\setvars.bat
cd <pti>\samples\dpc_gemm
mkdir build
cd build
cmake ..
cmake --build . --config Release

Use this command line to run the application:

cd Release
dpc_gemm.exe [cpu|gpu|host] [matrix_size] [repeats_count]