Gaëtan de Menten gdementen

gdementen / crash.py

Last active December 17, 2015 19:29

Crashing Python with numba jit()

	import numpy as np
	from numba import jit, double, autojit, void

	def func(result, a):
	for i in range(len(result)):
	result[i] = a[i]

	func_nb = jit(void[:](double[:], double[:]))(func)
	#func_nb = autojit(func)

gdementen / recursive_ctypes_struct.py

Last active December 17, 2015 15:59

recursive ctypes structures make numba fail to compile

	line 91, in from_ctypes_type
	return from_ctypes_type(ctypes_type._type_).pointer()
	File "c:\soft\Python27-32b\Lib\site-packages\numba\support\ctypes_support.py",
	line 97, in from_ctypes_type
	for name, field_type in ctypes_type._fields_]
	File "c:\soft\Python27-32b\Lib\site-packages\numba\support\ctypes_support.py",
	line 91, in from_ctypes_type
	return from_ctypes_type(ctypes_type._type_).pointer()
	File "c:\soft\Python27-32b\Lib\site-packages\numba\support\ctypes_support.py",
	line 88, in from_ctypes_type

gdementen / gil.py

Last active December 17, 2015 15:59

How to release the GIL inside a numba function through ctypes

	from ctypes import pythonapi, c_void_p
	from numba import autojit

	savethread = pythonapi.PyEval_SaveThread
	savethread.argtypes = []
	savethread.restype = c_void_p

	restorethread = pythonapi.PyEval_RestoreThread
	restorethread.argtypes = [c_void_p]
	restorethread.restype = None