I am having a weird problem during the gnuradio installation. It seems
an issue with treatment of floating point values by the machine. What
concerns me is the variability across different runs…
During the make check step, one of the tests throws an error asserting
the complex tuples are not equal. I run the same step 10 times
continuously, it passes 5 or 6 times. So my installation is probably ok.
Its something to do with the way the machine is handling the storage of
decimal values. But I just can’t figure it out.
Does anybody know of any option I can configure to lock the machine
behavior so that the way floats/doubles are stored is consistent.
FAIL: test01 (main.test_fll_band_edge_cc)
Traceback (most recent call last):
File “./qa_fll_band_edge.py”, line 80, in test01
self.assertComplexTuplesAlmostEqual (expected_result, dst_data, 4)
71, in assertComplexTuplesAlmostEqual
self.assertComplexAlmostEqual (a[i], b[i], places, msg)
44, in assertComplexAlmostEqual
(msg or ‘%s != %s within %s places’ % (
AssertionError: -0.20000000000000001 != -0.19991560280323029 within 4