创建后，用户事件引用计数设置为2

Question

如果我在创建后立即检查我的cl用户事件的引用计数，则得到值2.这对我来说似乎是一个错误：我期望值为1.

创建电话是：

cl_int errorCode;
cl_event evt = clCreateUserEvent(context, &errorCode);

Answer 1

An OpenCL object's reference count may also includes any internal references that the implementation holds to that object. As a developer, you have absolutely no guarantees about what the reference count for any object should be, at any time. The specification says:

The reference count returned should be considered immediately stale. It is unsuitable for general use in applications.