Problem introduced after 1.0rc2 on AIX with xlc

Brian Granger ellisonbg.net at gmail.com
Fri Oct 20 23:49:36 EDT 2006 

When I set seterr(all='warn') I see the following:

In [1]: import numpy
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/ufunclike.py:46:
RuntimeWarning: invalid value encountered in log
  _log2 = umath.log(2)
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/scimath.py:19:
RuntimeWarning: invalid value encountered in log
  _ln2 = nx.log(2.0)
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:64:
RuntimeWarning: invalid value encountered in add
  two = one + one
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:65:
RuntimeWarning: invalid value encountered in subtract
  zero = one - one
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:71:
RuntimeWarning: invalid value encountered in add
  a = a + a
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:72:
RuntimeWarning: invalid value encountered in add
  temp = a + one
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:73:
RuntimeWarning: invalid value encountered in subtract
  temp1 = temp - a
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:74:
RuntimeWarning: invalid value encountered in subtract
  if any(temp1 - one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:74:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp1 - one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:80:
RuntimeWarning: invalid value encountered in add
  b = b + b
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:81:
RuntimeWarning: invalid value encountered in add
  temp = a + b
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:82:
RuntimeWarning: invalid value encountered in subtract
  itemp = int_conv(temp-a)
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:83:
RuntimeWarning: invalid value encountered in not_equal
  if any(itemp != 0):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:95:
RuntimeWarning: invalid value encountered in multiply
  b = b * beta
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:96:
RuntimeWarning: invalid value encountered in add
  temp = b + one
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:97:
RuntimeWarning: invalid value encountered in subtract
  temp1 = temp - b
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:98:
RuntimeWarning: invalid value encountered in subtract
  if any(temp1 - one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:98:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp1 - one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:103:
RuntimeWarning: invalid value encountered in divide
  betah = beta / two
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:106:
RuntimeWarning: invalid value encountered in add
  a = a + a
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:107:
RuntimeWarning: invalid value encountered in add
  temp = a + one
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:108:
RuntimeWarning: invalid value encountered in subtract
  temp1 = temp - a
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:109:
RuntimeWarning: invalid value encountered in subtract
  if any(temp1 - one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:109:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp1 - one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:113:
RuntimeWarning: invalid value encountered in add
  temp = a + betah
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:115:
RuntimeWarning: invalid value encountered in subtract
  if any(temp-a != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:115:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp-a != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:117:
RuntimeWarning: invalid value encountered in add
  tempa = a + beta
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:118:
RuntimeWarning: invalid value encountered in add
  temp = tempa + betah
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:119:
RuntimeWarning: invalid value encountered in subtract
  if irnd==0 and any(temp-tempa != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:119:
RuntimeWarning: invalid value encountered in not_equal
  if irnd==0 and any(temp-tempa != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:124:
RuntimeWarning: invalid value encountered in divide
  betain = one / beta
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:127:
RuntimeWarning: invalid value encountered in multiply
  a = a * betain
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:130:
RuntimeWarning: invalid value encountered in subtract
  temp = one - a
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:131:
RuntimeWarning: invalid value encountered in subtract
  if any(temp-one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:131:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp-one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:133:
RuntimeWarning: invalid value encountered in multiply
  a = a * beta
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:149:
RuntimeWarning: invalid value encountered in add
  temp = one + a
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:150:
RuntimeWarning: invalid value encountered in subtract
  if any(temp-one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:150:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp-one != zero):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:152:
RuntimeWarning: invalid value encountered in multiply
  a = a * beta
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:160:
RuntimeWarning: invalid value encountered in add
  temp = one + eps
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:168:
RuntimeWarning: invalid value encountered in add
  t = one + eps
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:172:
RuntimeWarning: invalid value encountered in multiply
  z = y*y
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:173:
RuntimeWarning: invalid value encountered in multiply
  a = z*one # Check here for underflow
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:174:
RuntimeWarning: invalid value encountered in multiply
  temp = z*t
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:175:
RuntimeWarning: invalid value encountered in add
  if any(a+a == zero) or any(abs(z)>=y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:175:
RuntimeWarning: invalid value encountered in equal
  if any(a+a == zero) or any(abs(z)>=y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:175:
RuntimeWarning: invalid value encountered in absolute
  if any(a+a == zero) or any(abs(z)>=y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:175:
RuntimeWarning: invalid value encountered in greater_equal
  if any(a+a == zero) or any(abs(z)>=y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:177:
RuntimeWarning: invalid value encountered in multiply
  temp1 = temp * betain
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:178:
RuntimeWarning: invalid value encountered in multiply
  if any(temp1*beta == z):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:178:
RuntimeWarning: invalid value encountered in equal
  if any(temp1*beta == z):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:174:
RuntimeWarning: underflow encountered in multiply
  temp = z*t
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:184:
RuntimeWarning: invalid value encountered in not_equal
  if ibeta != 10:
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:198:
RuntimeWarning: invalid value encountered in multiply
  y = y * betain
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:199:
RuntimeWarning: invalid value encountered in multiply
  a = y * one
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:200:
RuntimeWarning: invalid value encountered in multiply
  temp = y * t
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:201:
RuntimeWarning: invalid value encountered in add
  if any(a+a != zero) and any(abs(y) < xmin):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:201:
RuntimeWarning: invalid value encountered in not_equal
  if any(a+a != zero) and any(abs(y) < xmin):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:201:
RuntimeWarning: invalid value encountered in absolute
  if any(a+a != zero) and any(abs(y) < xmin):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:201:
RuntimeWarning: invalid value encountered in less
  if any(a+a != zero) and any(abs(y) < xmin):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:203:
RuntimeWarning: invalid value encountered in multiply
  temp1 = temp * betain
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:204:
RuntimeWarning: invalid value encountered in multiply
  if any(temp1*beta == y) and any(temp != y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:204:
RuntimeWarning: invalid value encountered in equal
  if any(temp1*beta == y) and any(temp != y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:203:
RuntimeWarning: underflow encountered in multiply
  temp1 = temp * betain
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:204:
RuntimeWarning: invalid value encountered in not_equal
  if any(temp1*beta == y) and any(temp != y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:215:
RuntimeWarning: invalid value encountered in not_equal
  if mx <= k + k - 3 and ibeta != 10:
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:223:
RuntimeWarning: invalid value encountered in equal
  if ibeta == 2 and not i:
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:227:
RuntimeWarning: invalid value encountered in not_equal
  if any(a != y):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:229:
RuntimeWarning: invalid value encountered in subtract
  xmax = one - epsneg
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:230:
RuntimeWarning: invalid value encountered in multiply
  if any(xmax*one != xmax):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:230:
RuntimeWarning: invalid value encountered in not_equal
  if any(xmax*one != xmax):
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:232:
RuntimeWarning: invalid value encountered in multiply
  xmax = xmax / (xmin*beta*beta*beta)
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:232:
RuntimeWarning: invalid value encountered in divide
  xmax = xmax / (xmin*beta*beta*beta)
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:235:
RuntimeWarning: invalid value encountered in equal
  if ibeta==2:
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:236:
RuntimeWarning: invalid value encountered in add
  xmax = xmax + xmax
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:266:
RuntimeWarning: invalid value encountered in add
  ten = two + two + two + two + two
/usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/machar.py:267:
RuntimeWarning: invalid value encountered in power
  resolution = ten ** (-self.precision)


On 10/20/06, Tim Hochberg <tim.hochberg at ieee.org> wrote:
> Brian Granger wrote:
> > Hi,
> >
> > i am running numpy on aix compiling with xlc.  Revision 1.0rc2 works
> > fine and passes all tests.  But 1.0rc3 and more recent give the
> > following on import:
> >
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in add
> > Warning: invalid value encountered in not_equal
> > Warning: invalid value encountered in absolute
> > Warning: invalid value encountered in less
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in equal
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in add
> > Warning: invalid value encountered in not_equal
> > Warning: invalid value encountered in absolute
> > Warning: invalid value encountered in less
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in equal
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > Warning: invalid value encountered in multiply
> > [lots more of this]
> >
> > The odd thing is that all tests pass.  I have looked, but can't find
> > where this Warning is coming from  in the code.  Any thoughts on where
> > this is coming from?  What can I do to help debug this?  I am not sure
> > what revision introduced this issue.
> >
> The reason that you are seeing this now is that the default error state
> has been tightened up. There were some issues with tests failing as a
> result of this, but I believe I fixed those already and you're seeing
> this on import, not when running the tests correct? The first thing to
> do is figure out where the invalids are occurring, and the natural way
> to do that is to set the error state to raise, but you can't set the
> error state till you import it, so that's not going to help here.
>
> I think the first thing that I would try is to throw in a
> seterr(all='raise', under='ignore') right after the call to _setdef in
> numeric.py. If you're lucky, this will point out where the invalids are
> popping up. As a sanity check, you could instead make this
> seterr(all='ignore'), which should make all the warnings go away, but
> won't tell you anything about why there are warnings to begin with.
>
> Regards,
>
> -tim
>
>
> -------------------------------------------------------------------------
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Get stuff done quickly with pre-integrated technology to make your job easier
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http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

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