python - numba 中的 jit 和 autojit 有什么区别？

Question

我对 jit 和 autojit 之间的区别感到困惑。

我读过这个:

http://numba.pydata.org/numba-doc/0.6/doc/userguide.html

但不能说我知道有信心在这两个选项之间做出选择。有人可以详细说明吗，最好是举个例子。

谢谢

Answer 1

我应该读过这篇适用于较新版本的 numba 的文章。

http://numba.pydata.org/numba-doc/0.15.1/tutorial_firststeps.html#compiling-a-function-with-numba-jit-using-an-explicit-function-signature

2) jit(函数) -> 调度器

Same as old autojit.  Create a dispatcher function object that
specialize at call site.

Example:

    @jit
    def foo(x, y):
        return x + y

http://numba.pydata.org/numba-doc/0.15.1/tutorial_firststeps.html#compiling-a-function-without-providing-a-function-signature-autojit-functionality

Starting with numba version 0.12, it is possible to use numba.jit without providing a type-signature for the function. This functionality was provided by numba.autojit in previous versions of numba. The old numba.autojit hass been deprecated in favour of this signature-less version of numba.jit.