message: undo changes to config.linux
diff: #INSTALL_DIR=
  # set build type
  -BUILD_TYPE=Debug
  +BUILD_TYPE=Release
  # set CUDA Arch with your GPU architecture
  FF_CUDA_ARCH=${FF_CUDA_ARCH:-""}
  @@ -35,7 +35,7 @@ FF_USE_GASNET=${FF_USE_GASNET:-OFF}
  FF_GASNET_CONDUIT=${FF_GASNET_CONDUIT:-ibv}
  # build C++ examples
  -FF_BUILD_ALL_EXAMPLES=${FF_BUILD_ALL_EXAMPLES:-ON}
  +FF_BUILD_ALL_EXAMPLES=${FF_BUILD_ALL_EXAMPLES:-OFF}
  # build C++ unit tests
  FF_BUILD_UNIT_TESTS=${FF_BUILD_UNIT_TESTS:-OFF}
  