On Tuesday 20 April 2010 03:24:11 Steven Trogdon wrote: > On 04/19/10 - 12:29:01, Christopher Schwan wrote: > > Hi, > > > > as some of us know there a lot of failures on amd64 when running > > Sage's set of > > tests. Now I found out that pari caused some of these (I dont know > > exactly how > > many, but I will do a full test run later), because it was compiled > > without "- > > fno-strict-aliasing". I have written a bug report for that: > > > > - https://bugs.gentoo.org/show_bug.cgi?id=316139 > > > > In short: Add -fno-strict-aliasing to your CFLAGS and recompile pari > > and there > > should be less failing tests. > > > > Cheers, > > > > Christopher > > Christopher, > > This is significant! I'm listing test results here for comparison (pari > w/ USE=gmp): > > Failures with CFLAGS="-march=k8 -O2 -pipe" and CXXFLAGS="${CFLAGS}" on > a single processor laptop: > > sage -t -force_lib > "devel/sage/doc/en/constructions/plotting.rst" > sage -t -force_lib "devel/sage/sage/combinat/iet/strata.py" > sage -t -force_lib "devel/sage/sage/interfaces/gp.py" > sage -t -force_lib "devel/sage/sage/libs/pari/gen.pyx" > sage -t -force_lib "devel/sage/sage/symbolic/expression.pyx" > sage -t -force_lib > "devel/sage/sage/gsl/probability_distribution.pyx" > sage -t -force_lib "devel/sage/sage/lfunctions/lcalc.py" > sage -t -force_lib "devel/sage/sage/plot/plot.py" > sage -t -force_lib "devel/sage/sage/graphs/digraph.py" > sage -t -force_lib "devel/sage/sage/graphs/graph.py" > sage -t -force_lib "devel/sage/sage/misc/dist.py" > sage -t -force_lib "devel/sage/sage/misc/cython.py" > sage -t -force_lib "devel/sage/sage/misc/package.py" > sage -t -force_lib > "devel/sage/sage/functions/transcendental.py" > sage -t -force_lib "devel/sage/sage/functions/special.py" > sage -t -force_lib > "devel/sage/sage/modules/vector_real_double_dense.pyx" > sage -t -force_lib > "devel/sage/sage/modules/vector_double_dense.pyx" > sage -t -force_lib "devel/sage/sage/modular/modsym/space.py" > sage -t -force_lib "devel/sage/sage/matrix/matrix1.pyx" > sage -t -force_lib "devel/sage/sage/sets/set.py" > sage -t -force_lib "devel/sage/sage/numerical/optimize.py" > > Failures with CFLAGS="-march=opteron -O2 -pipe" and > CXXFLAGS="${CFLAGS}" on a dual processor, dual core desktop: > > sage -t -force_lib > "devel/sage/doc/en/constructions/plotting.rst" > sage -t -force_lib "devel/sage/sage/misc/cython.py" > sage -t -force_lib "devel/sage/sage/misc/package.py" > sage -t -force_lib "devel/sage/sage/misc/dist.py" > sage -t -force_lib "devel/sage/sage/symbolic/expression.pyx" > sage -t -force_lib "devel/sage/sage/lfunctions/sympow.py" > sage -t -force_lib "devel/sage/sage/lfunctions/lcalc.py" > sage -t -force_lib "devel/sage/sage/combinat/iet/strata.py" > sage -t -force_lib > "devel/sage/sage/combinat/words/suffix_trees.py" # Killed/crashed > sage -t -force_lib > "devel/sage/sage/combinat/posets/hasse_diagram.py" # Killed/crashed > sage -t -force_lib "devel/sage/sage/interfaces/gp.py" > sage -t -force_lib > "devel/sage/sage/categories/coxeter_groups.py" # Killed/crashed > sage -t -force_lib > "devel/sage/sage/categories/finite_coxeter_groups.py" # Killed/crashed > sage -t -force_lib "devel/sage/sage/matrix/matrix1.pyx" > sage -t -force_lib "devel/sage/sage/plot/plot.py" > sage -t -force_lib > "devel/sage/sage/modular/hecke/submodule.py" > sage -t -force_lib "devel/sage/sage/modular/abvar/abvar.py" > sage -t -force_lib "devel/sage/sage/modular/modsym/space.py" > sage -t -force_lib "devel/sage/sage/sets/set.py" > sage -t -force_lib > "devel/sage/sage/schemes/elliptic_curves/ell_rational_field.py" > sage -t -force_lib > "devel/sage/sage/modules/vector_double_dense.pyx" > sage -t -force_lib > "devel/sage/sage/modules/vector_real_double_dense.pyx" > sage -t -force_lib "devel/sage/sage/graphs/graph_list.py" # > Killed/crashed > sage -t -force_lib "devel/sage/sage/graphs/digraph.py" > sage -t -force_lib "devel/sage/sage/graphs/cliquer.pyx" # > Killed/crashed > sage -t -force_lib "devel/sage/sage/graphs/graph.py" > sage -t -force_lib > "devel/sage/sage/gsl/probability_distribution.pyx" > sage -t -force_lib "devel/sage/sage/numerical/optimize.py" > sage -t -force_lib "devel/sage/sage/geometry/polyhedra.py" # > Killed/crashed > sage -t -force_lib "devel/sage/sage/libs/pari/gen.pyx" > sage -t -force_lib > "devel/sage/sage/functions/transcendental.py" > sage -t -force_lib "devel/sage/sage/functions/special.py > > All of the tests with "Killed/crashed" passed on the desktop when pari > was built without > "-fno-strict-aliasing".
You surely mean _with_ "-fno-strict-aliasing" ? > > Steve Christopher
