If it is needed to pass the same option from driver to both host and device compilers, then it must be added two-times - see clang/lib/Driver/ToolChains/Clang.cpp, for example:
4124:CmdArgs.push_back("-fsycl");
...
6150:CmdArgs.push_back("-fsycl");

This is quite error prone and inconvenient - should be automated: option placed in one place, driver does the duplication itself.

Need to parallelize the build of c ++ code when called python setup.py

Currently, I have been updating the API docs for dpctl by manually generating and pushing the documents to the gh-pages branch. The steps that I use are:

Step 1

git checkout master
cd docs
mkdir build
cd build 
cmake -DDPCTL_DOCGEN_PREFIX=<Some location out of tree>
make Sphinx

Step 2

git clean -dfx
git checkout gh-pages
git rm -rf *
mv <Location where docs w