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#!/usr/bin/env python
#
# Created by: Pearu Peterson, September 2002
#
__usage__ = """
Build linalg:
python setup_linalg.py build
Run tests if scipy is installed:
python -c 'import scipy;scipy.linalg.test(<level>)'
Run tests if linalg is not installed:
python tests/test_lapack.py [<level>]
"""
import sys
from numpy.testing import *
from numpy import ones
set_package_path()
from linalg import flapack
from linalg import clapack
restore_path()
class test_flapack_simple(NumpyTestCase):
def check_gebal(self):
a = [[1,2,3],[4,5,6],[7,8,9]]
a1 = [[1,0,0,3e-4],
[4,0,0,2e-3],
[7,1,0,0],
[0,1,0,0]]
for p in 'sdzc':
f = getattr(flapack,p+'gebal',None)
if f is None: continue
ba,lo,hi,pivscale,info = f(a)
assert not info,`info`
assert_array_almost_equal(ba,a)
assert_equal((lo,hi),(0,len(a[0])-1))
assert_array_almost_equal(pivscale,ones(len(a)))
ba,lo,hi,pivscale,info = f(a1,permute=1,scale=1)
assert not info,`info`
#print a1
#print ba,lo,hi,pivscale
def check_gehrd(self):
a = [[-149, -50,-154],
[ 537, 180, 546],
[ -27, -9, -25]]
for p in 'd':
f = getattr(flapack,p+'gehrd',None)
if f is None: continue
ht,tau,info = f(a)
assert not info,`info`
class test_lapack(NumpyTestCase):
def check_flapack(self):
if hasattr(flapack,'empty_module'):
print """
****************************************************************
WARNING: flapack module is empty
-----------
See scipy/INSTALL.txt for troubleshooting.
****************************************************************
"""
def check_clapack(self):
if hasattr(clapack,'empty_module'):
print """
****************************************************************
WARNING: clapack module is empty
-----------
See scipy/INSTALL.txt for troubleshooting.
Notes:
* If atlas library is not found by numpy/distutils/system_info.py,
then scipy uses flapack instead of clapack.
****************************************************************
"""
if __name__ == "__main__":
NumpyTest().run()
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