#6453: MPFR test failures in Sage
----------------------+-----------------------------------------------------
Reporter: drkirkby | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.1.1
Component: solaris | Keywords:
Reviewer: | Author:
Merged: |
----------------------+-----------------------------------------------------
I found that when trying to build Sage on t2.math.washington.edu there
are problems with 'mpfr', with 20 out of 148 test failures.
{{{
gmake check-TESTS
gmake[2]: Entering directory `/tmp/mpfr-2.4.1/tests'
PASS: tversion
PASS: tinternals
PASS: tinits
PASS: tisqrt
PASS: tsgn
PASS: tcheck
PASS: tisnan
PASS: texceptions
PASS: tset_exp
PASS: tset
PASS: tabs
PASS: tset_d
PASS: tset_f
PASS: tset_q
PASS: tset_si
PASS: tset_str
PASS: tset_z
PASS: tset_ld
PASS: tset_sj
PASS: tswap
PASS: tcopysign
PASS: tcmp
PASS: tcmp2
PASS: tcmpabs
PASS: tcmp_d
PASS: tcmp_ld
PASS: tcomparisons
PASS: teq
PASS: tadd
PASS: tsub
/bin/bash: line 1: 24097 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tmul
/bin/bash: line 1: 24116 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tdiv
PASS: tsub1sp
PASS: tadd1sp
PASS: tadd_ui
PASS: tsub_ui
PASS: tcmp_ui
PASS: tdiv_ui
PASS: tmul_ui
PASS: tsqrt_ui
PASS: tui_div
PASS: tui_sub
/bin/bash: line 1: 24305 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tadd_d
PASS: tsub_d
PASS: td_sub
PASS: tmul_d
PASS: tdiv_d
PASS: td_div
PASS: tgmpop
PASS: tsi_op
PASS: tmul_2exp
/bin/bash: line 1: 24460 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tfma
/bin/bash: line 1: 24479 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tfms
PASS: tsum
PASS: tdim
PASS: tminmax
/bin/bash: line 1: 24549 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tnext
PASS: tfits
PASS: tget_d
PASS: tget_d_2exp
PASS: tget_z
/bin/bash: line 1: 24636 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tget_str
PASS: tget_sj
PASS: tout_str
PASS: tinp_str
PASS: toutimpl
PASS: tcan_round
PASS: tround_prec
/bin/bash: line 1: 24757 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tsqrt
PASS: tconst_log2
PASS: tconst_pi
PASS: tconst_euler
PASS: trandom
PASS: ttrunc
PASS: trint
PASS: tfrac
/bin/bash: line 1: 24895 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tmodf
PASS: texp
PASS: texp2
PASS: texp10
PASS: texpm1
PASS: tlog
PASS: tlog2
PASS: tlog10
PASS: tlog1p
/bin/bash: line 1: 25050 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tpow
/bin/bash: line 1: 25069 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tui_pow
PASS: tpow3
PASS: tcosh
PASS: tsinh
PASS: ttanh
PASS: tsinh_cosh
PASS: tacosh
PASS: tasinh
PASS: tatanh
PASS: thyperbolic
PASS: tasin
PASS: tacos
PASS: tcos
/bin/bash: line 1: 25292 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tatan
/bin/bash: line 1: 25311 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tsin
/bin/bash: line 1: 25330 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: ttan
PASS: tsin_cos
PASS: tagm
PASS: thypot
PASS: tfactorial
/bin/bash: line 1: 25417 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tgamma
PASS: terf
PASS: tcbrt
PASS: tzeta
PASS: mpf_compat
PASS: mpfr_compat
PASS: reuse
PASS: tsqr
/bin/bash: line 1: 25556 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tstrtofr
PASS: tpow_z
PASS: tget_f
PASS: tconst_catalan
PASS: troot
PASS: tsec
PASS: tcsc
PASS: tcot
PASS: teint
PASS: tcoth
PASS: tcsch
PASS: tsech
PASS: tstckintc
PASS: tsubnormal
PASS: tlngamma
PASS: tlgamma
PASS: tzeta_ui
PASS: tget_ld_2exp
PASS: tget_set_d64
PASS: tj0
PASS: tj1
PASS: tjn
PASS: ty0
PASS: ty1
PASS: tyn
PASS: tremquo
PASS: tfmod
PASS: tl2b
PASS: tli2
/bin/bash: line 1: 26051 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tprintf
/bin/bash: line 1: 26070 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tsprintf
/bin/bash: line 1: 26089 Segmentation Fault (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tfprintf
PASS: trec_sqrt
/bin/bash: line 1: 26125 Arithmetic Exception (core dumped)
MPFR_QUIET=1 ${dir}$tst
FAIL: tpow_all
======================
20 of 148 tests failed
======================
}}}
I downloaded the mpfr 2.4.1 source, compiled that with the same gcc
optimisation level as used in Sage (-O2). Again mpfr failed 20 tests.
I then changed to an optimsation level of 1 in the MPFR source (outside
sage). Again 20 tests failed.
I then used no optimsisation, which resultsed in 100% pass rate.
On my Blade 2000 (hostname kestrel), things are very different, as the
following table shows.
{{{
Machine Optimiation Failures
t2 -O2 20
t2 -O1 20
t2 none 0
kestrel -O2 0
kestrel -O1 untested
kestrel none 0
}}}
(kestrel runs Solaris 10 update 6)
(t2 runs Solaris 10 update 4)
I assumed this problem was due to optimisation in Sage and that removing
the optimisation on Solaris would solve this. But that is not the case.
The reason for the failures is still unknown.
There may be some advantage in recompiling mpir with lower optimisation,
despite the fact mpir did pass all tests, since this mpfr relies upon
mpir.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6453>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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