debugging examples in Docker container within vscode on ubuntu

[jnorwood]

In addition to Intel's info on debugging in vscode, there were a couple of mods I did in devcontainer.json.

"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined", "--device=/dev/dri" ],

added the --device=/dev/dri was required to get access to the GPU devices

uncommented the mounts line

// Uncomment to use the Docker CLI from inside the container. See https://aka.ms/vscode-remote/samples/docker-from-docker.

"mounts": [ "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind" ],

changed my cmake build to remove optimization and add DEBUG mode. Also just using make instead of Ninja

CXX=dpcpp cmake -D CMAKE_BUILD_TYPE=Debug -D CMAKE_CXX_FLAGS="-O0" -D NODPL=1 ../

I had to change the FPGA devices to FPGA emulator in some projects.

I also had to change from default_device to cpu_device in some projects. The default_device is a GPU, which doesn't work in all the programs.

I'm attaching a launch.json file and my modified devcontainer.json for the examples

vscodefiles.zip

[jnorwood]

one other change that wasn't mentioned in Intel's vscode support was the need to update the debugger search path for c and c++ includes for the sycl code. Without it, the debugger can't browse through source related to these type of includes.

#include <CL/sycl.hpp>

so, the change in my vscode c_cpp_properties.json file was to add an additional configurations includePath string:

            "/opt/intel/oneapi/compiler/2021.2.0/linux/include/sycl/**"

This made it possible to, for example, browse to the parallel_for definition