Fix clock overflow issue reported by Alex Wells. Remove unnecessary c…

…ondition checks and unused variables (#56)

* Added "Profile PyTorch" section in README.md

* Fix clock overflow issue reported by Alex Wells. Remove unnecessary condition checks and unused variables

* Remove unused argument 'result' in OnEnter*() calls

* Remove dead code

tools/unitrace/scripts/gen_tracing_callbacks.py

@@ -360,15 +360,15 @@ def gen_enter_callback(f, func, command_list_func_list, command_queue_func_list,
   if (cb != ""):
     f.write("  if (collector->options_.kernel_tracing) { \n")
     if (func in synchronize_func_list):
-      f.write("    " + cb + "(params, result, global_user_data, instance_user_data, &kids); \n")
+      f.write("    " + cb + "(params, global_user_data, instance_user_data, &kids); \n")
       f.write("    if (kids.size() != 0) {\n")
       f.write("        ze_instance_data.kid = kids[0];\n") # pass kid to the exit callback
       f.write("    }\n")
       f.write("    else {\n")
       f.write("        ze_instance_data.kid = (uint64_t)(-1);\n")
       f.write("    }\n")     
     else:
-      f.write("    " + cb + "(params, result, global_user_data, instance_user_data); \n")
+      f.write("    " + cb + "(params, global_user_data, instance_user_data); \n")
     f.write("  }\n")
     f.write("\n")
   f.write("  PTI_ASSERT(collector->correlator_ != nullptr);\n")