message: Adding a dump of engine and convolution options
  Summary: As summary
  Test Plan: Local run only
  Reviewers: jakeh, georgep
diff: @@ -414,6 +414,14 @@ Status PoplarExecutor::ConfigurePoplarDevice(
  conv_options_.set(opt.option(), opt.value());
  }
  + option_flags_.list([](const std::string& opt, const std::string& val) {
  + VLOG(1) << "Engine option: " << opt << " = " << val;
  + });
  +
  + conv_options_.list([](const std::string& opt, const std::string& val) {
  + VLOG(1) << "Convolution option: " << opt << " = " << val;
  + });
  +
  // Cache Target hash
  std::vector<int64> poplar_target;
  const auto& target = poplar_device_.getTarget();
  