#9735: Numerical noise on sage/stats/hmm/chmm.pyx on both Solaris x86 and
OpenSolaris x86
------------------------+---------------------------------------------------
Reporter: drkirkby | Owner: mvngu
Type: defect | Status: new
Priority: major | Milestone:
Component: doctest | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
The following test failure seen on both a Sun Ultra 27 running
!OpenSolaris 06/2009 and a Dell Optiplex 755 running Solaris 10 on the x86
processor.
== On a Sun Ultra 27 running !OpenSolaris ==
* Sun Ultra 27
* 3.33 GHz Intel W3580 Xeon. Quad core. 8 threads.
* 12 GB RAM
* !OpenSolaris 2009.06 snv_134b X86
* Sage 4.5.3.alpha0
* gcc 4.5.0
{{{
sage -t -long devel/sage/sage/stats/hmm/chmm.pyx
**********************************************************************
File "/export/home/drkirkby/32/sage-4.5.3.alpha0/devel/sage-
main/sage/stats/hmm/chmm.pyx", line 570:
sage: m.viterbi([0,1,10,10,1])
Expected:
([0, 0, 1, 1, 0], -9.0604285688230899)
Got:
([0, 0, 1, 1, 0], -9.0604285688230917)
**********************************************************************
File "/export/home/drkirkby/32/sage-4.5.3.alpha0/devel/sage-
main/sage/stats/hmm/chmm.pyx", line 132:
sage: m.baum_welch(obs)
Expected:
(-10.610333495739708, 14)
Got:
(-10.61033349573971, 14)
**********************************************************************
File "/export/home/drkirkby/32/sage-4.5.3.alpha0/devel/sage-
main/sage/stats/hmm/chmm.pyx", line 134:
sage: m.log_likelihood(obs)
Expected:
-10.610333495739708
Got:
-10.61033349573971
**********************************************************************
2 items had failures:
1 of 7 in __main__.example_15
2 of 12 in __main__.example_2
***Test Failed*** 3 failures.
For whitespace errors, see the file
/export/home/drkirkby/.sage//tmp/.doctest_chmm.py
[2.9 s]
}}}
== On a Dell Optiplex 755 running Solaris 10 x86 ==
* Dell Optiplex 755
* 2.4 GHz Quad-Core Intel Core Q6600
* 8 GB RAM
* Solaris 10 x86 (update 5, 5/08)
* gcc 4.5.1 configured to use the Sun linker and GNU assembler from
binutils-2.20.1.
* 32-bit build.
* Using sage-4.5.2.rc1
{{{
sage -t -long devel/sage/sage/stats/hmm/chmm.pyx
**********************************************************************
File "/home/palmieri/fulvia/32bit/sage-4.5.2.rc1/devel/sage-
main/sage/stats/hmm/chmm.pyx", line 570:
sage: m.viterbi([0,1,10,10,1])
Expected:
([0, 0, 1, 1, 0], -9.0604285688230899)
Got:
([0, 0, 1, 1, 0], -9.0604285688230917)
**********************************************************************
File "/home/palmieri/fulvia/32bit/sage-4.5.2.rc1/devel/sage-
main/sage/stats/hmm/chmm.pyx", line 132:
sage: m.baum_welch(obs)
Expected:
(-10.610333495739708, 14)
Got:
(-10.61033349573971, 14)
**********************************************************************
File "/home/palmieri/fulvia/32bit/sage-4.5.2.rc1/devel/sage-
main/sage/stats/hmm/chmm.pyx", line 134:
sage: m.log_likelihood(obs)
Expected:
-10.610333495739708
Got:
-10.61033349573971
**********************************************************************
2 items had failures:
1 of 7 in __main__.example_15
2 of 12 in __main__.example_2
***Test Failed*** 3 failures.
For whitespace errors, see the file
/home/palmieri/.sage_fulvia/tmp/.doctest_chmm.py
[11.4 s]
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9735>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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