feat: set enzyme comm flag (#1861)

Author: avik-pal

deps/ReactantExtra/API.cpp

@@ -1208,6 +1208,7 @@ GenerateCompileOptions(int64_t device_id, const int64_t *mesh_ids,
   auto debug_options = options.executable_build_options.mutable_debug_options();
 
   debug_options->set_xla_gpu_cuda_data_dir(xla_gpu_cuda_data_dir);
+  debug_options->set_xla_enable_enzyme_comms_opt(true);
 
   if (kernel_cache_enabled) {
     debug_options->set_xla_gpu_kernel_cache_file(kernel_cache_path);