Mailman 3 October 2007 - pypy-dev

http://morepypy.blogspot.com/
by Laura Creighton 30 Oct '07

30 Oct '07

thank you for the welcoming post, carl friedrich. now -- can one get listed as a contributor even if one does not have a google account? I fear I may break down and get a google mail for this reason. Laura

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Re: [pypy-dev] bern sprint finished
by Laura Creighton 30 Oct '07

30 Oct '07

In a message of Tue, 30 Oct 2007 17:28:36 +0100, Antonio Cuni writes: >Carl Friedrich Bolz wrote: > >> So, it seems many people liked the blog thing. How about we start a >> general PyPy blog where we can all post? Should we try to set >> something up on codespeak or just keep using blogspot? The latter >> increases the chances that things are happening soon :). Any ideas for >> a title? pypy.blogspot.com seems already taken by a dead one-entry >> block :-(. We could then try to get it picked up by the python planet. >> > >+1 for the pypy blog: I think it would be cool to have. > >I think that the best would be to have it on codespeak, with maybe one >general pypy blog and several ad-personam ones. Ideally it would be >integrated with svn, because we all know that we prefer to write inside >emacs/vi/whatever than inside a browser :-), but I admit that it would >require much more work to setup such a thing. > >About the name: if pypy.blogspot.com is already taken, we could try to >move to another blog site; for example, pypy.blogger.com seems to be >free; I've no clue about advantages/features of one site or another, thou >gh. > >ciao Anto On Saturday, Jacob, Samuele, Armin and I leave for the USA. We are meeting with Humanized in Chicago, then IBM in New York, the Mozilla/Active State/Tim Bray of Sun in Vancouver, then going to a 3 day conference in Santa Cruz, then meeting John Rose of Sun and various other Sun people, then going to Electronic Arts, and then to google on the 14th. Then 2 days of free time in San Francisco, get back on an airplane on the 17th and arrive back here in Göteborg on the 19th, day 1 of the sprint. Ok, we're crazy. :-) But I think that a touring blog would be nice, even as a place to download our thoughts before our brains overflow. Somebody, someplace, must have made emacs binding for a commonly used blogging site, no? Googling isn't helping -- I keep finding everybody and their dog blogging about emacs bindings for every program on this planet, it seems, except the blogging software itself. Anybody know of any? Laura

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bern sprint finished
by Carl Friedrich Bolz 30 Oct '07

30 Oct '07

Hi all, the Bern Smalltalk/PyPy sprint is finished. There won't be a sprint summary in the PyPy sense, but we covered most of what happened during the week on the (already mentioned) pypysqueak.blogspot.com . I just posted a short summary about the overall achievements of the week: http://pypysqueak.blogspot.com/2007/10/bern-sprint-finished-summary.html Cheers, Carl Friedrich

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Small optimization
by Antonio Cuni 28 Oct '07

28 Oct '07

Hi all, between some interesting and a lot of not-so-interesting talks here at oospla, I also find the time to hack a bit on pypy :-). Yesterday I tried the hand-written optimization attached to this mail; it seems to make pystone about 6% faster; it's not much, but it's not even so few not to take into account, IMHO. Btw, richards does not show any improvement, as expected. Also, it seems that it makes pypy-cli slower, at least on mono; this is somewhat surprising, because IronPython entirely relies on this kind of if-else if tests to dispath all operations... I would have bet that our multimethod dispatching was slower, but it does not seems so. I should try also on MS .NET, though. I know that this is not the way to do such an optimization; I guess that the correct way would be to teach the mutlimethod installer which are the "hot" cases to test first, before going for a full dispatch; I've not clue how to do it, though. :-) ciao Anto Index: objspace/descroperation.py =================================================================== --- objspace/descroperation.py (revision 47491) +++ objspace/descroperation.py (working copy) @@ -413,6 +413,19 @@ def _make_binop_impl(symbol, specialnames): left, right = specialnames def binop_impl(space, w_obj1, w_obj2): + if symbol == '+': + from pypy.objspace.std.intobject import W_IntObject, wrapint + from pypy.objspace.std.longobject import add__Long_Long, delegate_Int2Long + from pypy.rlib.rarithmetic import ovfcheck + if isinstance(w_obj1, W_IntObject) and isinstance(w_obj2, W_IntObject): + x = w_obj1.intval + y = w_obj2.intval + try: + z = ovfcheck(x + y) + except OverflowError: + return add__Long_Long(space, delegate_Int2Long(space, w_obj1), delegate_Int2Long(space, w_obj2)) + return wrapint(space, z) + w_typ1 = space.type(w_obj1) w_typ2 = space.type(w_obj2) w_left_src, w_left_impl = space.lookup_in_type_where(w_typ1, left)

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Compiling pypy-c on Linux
by Raj Bandyopadhyay 23 Oct '07

23 Oct '07

Hi all Looks like I'm the one with all the complaints :) Thanks for investigating the Windows issues! I'm trying to compile pypy-c on a Linux/x86 machine, and running into all sorts of errors. Following the instructions in the getting- started document, I installed ctypes, pygame and graphviz. After that I run the translator tool and get the following errors. Any ideas what I might be missing? Thanks Raj bash-2.05b$ /local/python/bin/python translate.py --run --text targetpypystandalone.py [translation:info] Translating target as defined by targetpypystandalone [translation] PyPy config object: [translation] [objspace] [translation] compiler = ast [translation] nofaking = True [translation] [usemodules] [translation] errno = True [translation] posix = True [translation] time = True --- beginning of app_example.py --- 42 --- end of app_example.py --- [translation] translate.py configuration: [translation] [translate] [translation] [goal_options] [translation] run = True [translation] targetspec = targetpypystandalone [translation] text = True [translation] translation configuration: [translation] [translation] [translation:info] Annotating&simplifying... [translation:info] with policy: pypy.translator.goal.ann_override.PyPyAnnotatorPolicy ++++++++++++++***********************%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%% ######################################################################## #####%%%%%%%%%*********** ++++++++++++********************%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%##%%% ######################################################################## ####%%%%%%%%%%%%%%******** ++++++++++*******************%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%% ######################################################################## ###########%%%%%%%%%%%%%%%%%****** ++++++++******************%%%#%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%% ######################################################################## ###########%%%%%%%#%%%%%%%%%%*** ++++++*****************%%%%%####%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%#% ################################################################### [translation:ERROR] Error: [translation:ERROR] Traceback (most recent call last): [translation:ERROR] File "translate.py", line 287, in main [translation:ERROR] drv.proceed(goals) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/translator/ driver.py", line 709, in proceed [translation:ERROR] return self._execute(goals, task_skip = self._maybe_skip()) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/translator/ tool/taskengine.py", line 112, in _execute [translation:ERROR] res = self._do(goal, taskcallable, *args, **kwds) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/translator/ driver.py", line 260, in _do [translation:ERROR] res = func() [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/translator/ driver.py", line 279, in task_annotate [translation:ERROR] s = annotator.build_types(self.entry_point, self.inputtypes) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 101, in build_types [translation:ERROR] return self.build_graph_types(flowgraph, inputcells, complete_now=complete_now) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 192, in build_graph_types [translation:ERROR] self.complete() [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 248, in complete [translation:ERROR] self.processblock(graph, block) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 477, in processblock [translation:ERROR] self.flowin(graph, block) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 537, in flowin [translation:ERROR] self.consider_op(block.operations[i]) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 739, in consider_op [translation:ERROR] raise_nicer_exception(op, str(graph)) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ annrpython.py", line 736, in consider_op [translation:ERROR] resultcell = consider_meth(*argcells) [translation:ERROR] File "<string>", line 3, in consider_op_simple_call [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ unaryop.py", line 166, in simple_call [translation:ERROR] return obj.call(getbookkeeper().build_args ("simple_call", args_s)) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ unaryop.py", line 597, in call [translation:ERROR] return bookkeeper.pbc_call(pbc, args) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ bookkeeper.py", line 641, in pbc_call [translation:ERROR] results.append(desc.pycall(schedule, args, s_previous_result)) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ description.py", line 266, in pycall [translation:ERROR] result = self.specialize(inputcells) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ description.py", line 262, in specialize [translation:ERROR] return self.specializer(self, inputcells) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ specialize.py", line 64, in default_specialize [translation:ERROR] return funcdesc.cachedgraph(key, alt_name=alt_name) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ description.py", line 227, in cachedgraph [translation:ERROR] graph = self.buildgraph(alt_name, builder) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/annotation/ description.py", line 194, in buildgraph [translation:ERROR] graph = translator.buildflowgraph(self.pyobj) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/translator/ translator.py", line 77, in buildflowgraph [translation:ERROR] graph = space.build_flow(func) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/objspace/ flow/objspace.py", line 261, in build_flow [translation:ERROR] ec.build_flow() [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/objspace/ flow/flowcontext.py", line 302, in build_flow [translation:ERROR] self.mergeblock(e.block, e.currentstate) [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/objspace/ flow/flowcontext.py", line 348, in mergeblock [translation:ERROR] finished = newstate == block.framestate [translation:ERROR] File "/local/rajb/pypy-1.0.0/pypy/objspace/ flow/framestate.py", line 76, in __eq__ [translation:ERROR] assert len(self.mergeable) == len (other.mergeable) [translation:ERROR] AssertionError': [translation:ERROR] .. v4 = simple_call(v0, space_0, v1, v2, v3) [translation:ERROR] .. '(?:2) BuiltinActivation_UwS_ObjSpace_W_Root_W_Root_W_Root._run_UWS_ObjSpace_W_ Root_W_Root_W_Root' [translation:ERROR] Processing block: [translation:ERROR] block@3 is a <class 'pypy.objspace.flow.flowcontext.SpamBlock'> [translation:ERROR] in (?:2) BuiltinActivation_UwS_ObjSpace_W_Root_W_Root_W_Root._run_UWS_ObjSpace_W_ Root_W_Root_W_Root [translation:ERROR] containing the following operations: [translation:ERROR] v0 = getattr(self_0, ('behavior')) [translation:ERROR] v1 = getitem(scope_w_0, (0)) [translation:ERROR] v2 = getitem(scope_w_0, (1)) [translation:ERROR] v3 = getitem(scope_w_0, (2)) [translation:ERROR] v4 = simple_call(v0, space_0, v1, v2, v3) [translation:ERROR] --end-- [translation] start debugger... > /local/rajb/pypy-1.0.0/pypy/objspace/flow/framestate.py(76)__eq__() -> assert len(self.mergeable) == len(other.mergeable) (Pdb+)

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pypy-squeak sprint blog
by Carl Friedrich Bolz 22 Oct '07

22 Oct '07

hi all! So it seem that (as mention in the first entry) smalltalkers are more used to rss feeds and blogs than to mails on mailing lists, so Adrian Kuhn and me have just started a blog about the PyPy-Squeak sprint in Bern here: http://pypysqueak.blogspot.com/ Cheers, Carl Friedrich

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pypy-c and JIT
by Raj Bandyopadhyay 22 Oct '07

22 Oct '07

Hi I am currently running pypy-c on Windows and I was wondering what the default mode of execution is. Is it a bytecode interpreter or is it doing a JIT compilation? Is there a native code option and how can I invoke it? Thanks Raj

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Strange optimisation
by Maciek Fijalkowski 21 Oct '07

21 Oct '07

Here is proposed diff: http://paste.pocoo.org/show/6990 I think it doesn't really crash anything (no tests failing), nor has any performance impact, but who knows... I would like someone to review that patch. Basically, half of the time spend in inline helpers is spend in cleanup_graph, which imho can be performed less often. Cheers, fijal :.

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Some issues with the testing framework
by Elmo Mäntynen 21 Oct '07

21 Oct '07

Using --tb=short has propably always crashed (with a failing test). Attached is a file demonstrating a few issues with pypys applevel testing framework, of which some might be 'won't fix' Elmo

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py.test bisection algorithm
by Ondrej Certik 19 Oct '07

19 Oct '07

Hi, we are using py.test in SymPy and unfortunately, we have some bugs in SymPy, that occurs when certain tests are run and don't occur when the tests are run in different order. It's very time consuming to determine which tests cause the problem (I did that several times by hand). It occured to me that it should be possible to enhance py.test by this facility to do it automatically. Example: 1) This passes: $ py.test sympy/series/tests/test_series.py -k issue409 This doesn't 2) $ py.test One problem is, that 2) runs for several minutes, another problem is that I need to specify all tests on the command line and then deleting some of them it see if it still fails, until I narrow the issue down, usually quite nicely. Then I need to play with the "-k" parameter to try different test cases in the file, until I determine the minimal set of tests that, when executed in order, produce the error. This can by done automatically - the py.test will be given a set of files (or just tests) that pass and another set that fails and it will narrow the problem down, by bisecting. I would like to implement this in py.test. So I'll try my best and send you a patch. If you have some ideas, that could help me, I am interested. Thanks a lot, Ondrej

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