multithreading - Cython Prange失败并显示致命Python错误: PyThreadState_Get: no current thread

Question

我正在尝试使用prange并行化循环:

cdef fun(double [::1] someData)) nogil:
    #direct call to a external c function
    C_function(&someData[0])

#....
def parallelEvaluate(np.ndarray[np.double_t] largerArray):
    #....
    cdef np.ndarray[np.double_t] array
    cdef np.ndarray[np.int] arbitraryIndices
    for n in prange(loopLength, nogil=true):
        with gil:
            arbitraryIndices = # ... indices dependent on n
            array = np.copy( largerArray[ arbitraryIndices]  ) # copy of a non cont. array to the cont. 'array'
        fun(array)

但是，这样做失败:
致命的Python错误:PyThreadState_Get:当前没有线程

这种行为的原因是什么？

谢谢!

Answer 1

确定了:

来自np.ndarray的隐式转换不起作用。我用一个额外的memoryview slice解决了它。