mark florisson, 04.04.2011 21:26:
For clarity, I'll add an example:

def f(np.ndarray[double] x, double alpha):
     cdef double s = 0
     cdef double tmp = 2
     cdef double other = 6.6

     with nogil:
         for i in prange(x.shape[0]):
             # reading 'tmp' makes it firstprivate in addition to lastprivate
             # 'other' is only ever read, so it's shared
             printf("%lf %lf %lf\n", tmp, s, other)

So, adding a printf() to your code can change the semantics of your variables? That sounds like a really bad design to me.

Stefan
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