Mailman 3 August 2012 - pypy-dev

ARM backend release
by Wiktor Mizdal Aug. 19, 2012

Aug. 19, 2012

When we expected a stable release of ARM backend? It possible in this year? Cheers, Wiktor

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Issues with Networkx subgraph function - Slower than cPython
by Andrew Elliott Aug. 15, 2012

Aug. 15, 2012

Hello I have recently tried to move some code across to pypy from cPython, and it takes around 1.5x longer than the cPython implementation (~12 seconds against 19 seconds). Most of the time (90%) is spent in the multiple calls to the subgraph function of networkx. Is there anything that I can do to make pypy faster? I am running the Mac OSX 64 bit binary inside a virtualenv. Thanks, Andrew Elliott

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Need some pointers on my interpreter
by Timothy Baldridge Aug. 15, 2012

Aug. 15, 2012

I'm in the process of writing a interpreter in pypy and I'd like some pointers on how to optimize my inner loop for better jit optimization. My interpreter code is here: https://github.com/halgari/cljvm/blob/master/system/interpreter.py And the wrapper/unwrapper bits are here: https://github.com/halgari/cljvm/blob/master/system/objspace.py My test program is here: https://github.com/halgari/cljvm/blob/master/tests/benchmark/basic_math.py In this example the interpreter is getting "max" … [View More]

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what does the debug cycle look like?
by Brandon Rhodes Aug. 14, 2012

Aug. 14, 2012

I need some help. I want to help add more numpypy goodness to PyPy, so that I can rewrite my PyEphem astronomy module as pure Python instead of having to always maintain a C extension. I will then tell the users who are doing large calculations, and need extra speed, that they can run their script on PyPy and have it run blazing fast. My problem is that I am not sure how to start adding code to PyPy in such a way that I can try out my code more than once within a single work day, because it … [View More]

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cppyy comments/questions
by Uwe Hoffmann Aug. 14, 2012

Aug. 14, 2012

Hi, i'm not sure if this is the correct mailing list as this is more a question of "developing with" than "developing of" pypy. I made some tests with cppyy and it looks promising but I have some questions/comments. preface: Tested with trunk and the reflex-support branch. building with: python translate.py -O jit --gcrootfinder=shadowstack \ targetpypystandalone.py --withmod-cppyy 64-bit linux , gcc 4.6.1 1) During build/translation there … [View More]

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Translator error on Windows: error C2036: 'void *' : unknown size
by Timothy Baldridge Aug. 14, 2012

Aug. 14, 2012

I get the following error during translation on Windows: error C2036: 'void *' : unknown size I'm using 32 bit python to do my translation. Is there a known fix for this error? Thanks, Timothy

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jvm tests failing on os x
by Maciej Fijalkowski Aug. 14, 2012

Aug. 14, 2012

Anyone has any idea how to fix/disable them? An example: http://buildbot.pypy.org/summary/longrepr?testname=TestJvmException.%28%29.… Cheers, fijal

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jvm-improvements branch
by Michal Bendowski Aug. 12, 2012

Aug. 12, 2012

Hello, At this point it's probably pretty clear I wasn't working on PyPy full time (you heard from me once every two months...) but nevertheless I would like to ask a few questions: 1. How can the buildbot be triggered? My work on the JVM backend is already in the jvm-improvements branch, it should now finally build and work against current default. If I remember correctly, Antonio has setup the appropriate 32bit chroot with JPype for the branch. 2. What is the general test-passing policy? I … [View More]

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custom interpreter split_block error
by Timothy Baldridge Aug. 11, 2012

Aug. 11, 2012

I have a interpreter that translates fine, but when I turn on the JIT I get the following error [translation:ERROR] File "/home/tim/pypy/pypy/jit/metainterp/warmspot.py", line 266, in split_graph_and_record_jitdriver [translation:ERROR] graph.startblock = support.split_before_jit_merge_point(*jmpp) [translation:ERROR] File "/home/tim/pypy/pypy/jit/codewriter/support.py", line 79, in split_before_jit_merge_point [translation:ERROR] link = split_block(None, portalblock, 0, greens_v … [View More]

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Invitation to participate in SIAM CS&E Minisymposium
by Andy Ray Terrel Aug. 10, 2012

Aug. 10, 2012

Hello all, I'm putting together a minisymposium at SIAM CS&E 2013 ( http://www.siam.org/meetings/cse13/ ) on Fast Numerical Code in High Level Languages. Having a speaker from your community would be a wonderful addition to our minisymposium. Unfortunately tight deadlines means I need an answer by Friday (Aug 10). Can any of you come? If you agree please provide a draft title of your presentation. We will then follow up with instructions for you to submit a 75-word abstract to the … [View More]

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