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import numpy as np
from numpy.testing import TestCase, assert_array_almost_equal, dec, \
assert_equal, assert_
from common import FUNCS_TP, FLAPACK_IS_EMPTY, CLAPACK_IS_EMPTY, FUNCS_FLAPACK, \
FUNCS_CLAPACK, PREC
A = np.array([[1,2,3],[2,2,3],[3,3,6]])
B = np.array([[10,-1,1],[-1,8,-2],[1,-2,6]])
class TestSygv(TestCase):
def _test_base(self, func, lang, itype):
tp = FUNCS_TP[func]
a = A.astype(tp)
b = B.astype(tp)
if lang == 'C':
f = FUNCS_CLAPACK[func]
elif lang == 'F':
f = FUNCS_FLAPACK[func]
else:
raise ValueError("Lang %s ??" % lang)
w, v, info = f(a, b, itype=itype)
assert_(not info, msg=repr(info))
for i in range(3):
if itype == 1:
assert_array_almost_equal(np.dot(a,v[:,i]), w[i]*np.dot(b,v[:,i]),
decimal=PREC[tp])
elif itype == 2:
assert_array_almost_equal(np.dot(a,np.dot(b,v[:,i])), w[i]*v[:,i],
decimal=PREC[tp])
elif itype == 3:
assert_array_almost_equal(np.dot(b,np.dot(a,v[:,i])),
w[i]*v[:,i], decimal=PREC[tp] - 1)
else:
raise ValueError(itype)
@dec.skipif(FLAPACK_IS_EMPTY, "Flapack empty, skip flapack test")
def test_ssygv_1(self):
self._test_base('ssygv', 'F', 1)
@dec.skipif(FLAPACK_IS_EMPTY, "Flapack empty, skip flapack test")
def test_ssygv_2(self):
self._test_base('ssygv', 'F', 2)
@dec.skipif(FLAPACK_IS_EMPTY, "Flapack empty, skip flapack test")
def test_ssygv_3(self):
self._test_base('ssygv', 'F', 3)
@dec.skipif(FLAPACK_IS_EMPTY, "Flapack empty, skip flapack test")
def test_dsygv_1(self):
self._test_base('dsygv', 'F', 1)
@dec.skipif(FLAPACK_IS_EMPTY, "Flapack empty, skip flapack test")
def test_dsygv_2(self):
self._test_base('dsygv', 'F', 2)
@dec.skipif(FLAPACK_IS_EMPTY, "Flapack empty, skip flapack test")
def test_dsygv_3(self):
self._test_base('dsygv', 'F', 3)
@dec.skipif(CLAPACK_IS_EMPTY or not FUNCS_CLAPACK["ssygv"],
"Clapack empty, skip flapack test")
def test_clapack_ssygv_1(self):
self._test_base('ssygv', 'C', 1)
@dec.skipif(CLAPACK_IS_EMPTY or not FUNCS_CLAPACK["ssygv"],
"Clapack empty, skip flapack test")
def test_clapack_ssygv_2(self):
self._test_base('ssygv', 'C', 2)
@dec.skipif(CLAPACK_IS_EMPTY or not FUNCS_CLAPACK["ssygv"],
"Clapack empty, skip flapack test")
def test_clapack_ssygv_3(self):
self._test_base('ssygv', 'C', 3)
@dec.skipif(CLAPACK_IS_EMPTY or not FUNCS_CLAPACK["dsygv"],
"Clapack empty, skip flapack test")
def test_clapack_dsygv_1(self):
self._test_base('dsygv', 'C', 1)
@dec.skipif(CLAPACK_IS_EMPTY or not FUNCS_CLAPACK["dsygv"],
"Clapack empty, skip flapack test")
def test_clapack_dsygv_2(self):
self._test_base('dsygv', 'C', 2)
@dec.skipif(CLAPACK_IS_EMPTY or not FUNCS_CLAPACK["dsygv"],
"Clapack empty, skip flapack test")
def test_clapack_dsygv_3(self):
self._test_base('dsygv', 'C', 3)
if __name__=="__main__":
run_module_suite()
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