Profiling

Compile Times

  1. Select a clang compiler

  2. Configure and include -ftime-trace in your CXX FLAGS (this works with clang+cuda).

  3. Clone and build https://github.com/aras-p/ClangBuildAnalyzer. Put the binary directory in your PATH.

  4. Compile Kokkos and KokkosKernels

  5. Create a directory called ftime-trace-artifacts in your build directory

  6. Copy the json files you care about in this directory, for example:

cp ./{sparse,blas}/unit_test/CMakeFiles/*.dir/backends/*.json ftime-trace-artifacts/

  1. Run ClangBuildAnalyzer:

ClangBuildAnalyzer --all ftime-trace-artifacts/ profile.txt
ClangBuildAnalyzer --analyze profile.txt > analyze.txt

  1. Open analyze.txt