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diff --git a/documentation/dpcpp-compiler.md b/documentation/dpcpp-compiler.md new file mode 100644 index 00000000..b709a685 --- /dev/null +++ b/documentation/dpcpp-compiler.md @@ -0,0 +1,107 @@ +Intel(R) oneAPI DPC++/C++ Compiler (ICX) toolchain +========================================================================== + +Get Started with the Intel oneAPI DPC++/C++ Compiler: + +https://www.intel.com/content/www/us/en/developer/tools/oneapi/dpc-compiler.html# + + +Getting Started +=============== + +Clone the required layers and include them in bblayers.conf: + +``` +git clone https://git.openembedded.org/openembedded-core +git clone https://git.openembedded.org/bitbake +git clone https://git.openembedded.org/meta-openembedded +git clone https://github.com/kraj/meta-clang.git +git clone https://git.yoctoproject.org/meta-intel + +$ source openembedded-core/oe-init-build-env + +$ bitbake-layers add-layer ../meta-openembedded/meta-oe/ +$ bitbake-layers add-layer ../meta-intel +$ bitbake-layers add-layer ../meta-clang +``` + +Distro +====== + +Note that oneAPI DPC++/C++ compiler currently only works when the vendor string is "oe". + +``` +DISTRO ?= "nodistro" +``` + +MACHINE configuration +===================== + +``` +MACHINE ?= "intel-skylake-64" +``` + +Package installation +==================== + +``` +# To include OpenCL driver that might be needed when compiling SYCL programs, include: +IMAGE_INSTALL:append = " intel-compute-runtime intel-graphics-compiler" + +# To install only runtime libraries, include: +IMAGE_INSTALL:append = " intel-oneapi-dpcpp-cpp-runtime intel-oneapi-dpcpp-cpp-runtime-dev" + +# To install the toolchain, include: +IMAGE_INSTALL:append = " intel-oneapi-dpcpp-cpp intel-oneapi-dpcpp-cpp-dev" +``` +in local.conf. + +Build an image +============== + +``` +$ bitbake core-image-minimal +``` + +Including oneAPI C++/DPC++ compiler in generated SDK toolchain +============================================================== + +The compiler is not included in the generated SDK by default. If it is expected to be part of SDK, add ICXSDK = "1" in local.conf: + +``` +ICXSDK = "1" +``` + +Generate SDK: +``` +bitbake core-image-minimal -c populate_sdk +``` + + +To setup PATH variables on target +================================= + +Once image is booted successfully, some variables would need to be exported to make sure compiler can be used: + +``` +$ source /opt/intel/oneapi/compiler/2022.1.0/env/vars.sh + +$ mkdir -p /lib64 + +$ ln -sf /lib/ld-linux-x86-64.so.2 /lib64/ld-linux-x86-64.so.2 +``` + +Build application and run +========================= + +To compile a sycl application, for example: + +``` +$ icpx --target=x86_64-oe-linux -fsycl simple-sycl-app.c -o simple-sycl-app +``` + +To run: + +``` +$ ./simple-sycl-app +``` |