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diff --git a/pipermail/pycrypto/2010q4/000277.html b/pipermail/pycrypto/2010q4/000277.html new file mode 100644 index 0000000..674b658 --- /dev/null +++ b/pipermail/pycrypto/2010q4/000277.html @@ -0,0 +1,187 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML> + <HEAD> + <TITLE> [pycrypto] Changes for _fastmath.c to be able to built on MSVC 9.0 (aka VS2008) + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20Changes%20for%20_fastmath.c%20to%20be%20able%20to%20built%20on%20MSVC%209.0%0A%09%28aka%20VS2008%29&In-Reply-To=AANLkTik0Fh2EP%3DNY9oYJ81pFEuTompqGtqVKSVyKCzea%40mail.gmail.com"> + <META NAME="robots" CONTENT="index,nofollow"> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000279.html"> + <LINK REL="Next" HREF="000280.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[pycrypto] Changes for _fastmath.c to be able to built on MSVC 9.0 (aka VS2008)</H1> + <B>cwt</B> + <A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20Changes%20for%20_fastmath.c%20to%20be%20able%20to%20built%20on%20MSVC%209.0%0A%09%28aka%20VS2008%29&In-Reply-To=AANLkTik0Fh2EP%3DNY9oYJ81pFEuTompqGtqVKSVyKCzea%40mail.gmail.com" + TITLE="[pycrypto] Changes for _fastmath.c to be able to built on MSVC 9.0 (aka VS2008)">cwt at bashell.com + </A><BR> + <I>Fri Oct 15 06:33:29 CST 2010</I> + <P><UL> + <LI>Previous message: <A HREF="000279.html">[pycrypto] On the future of new ciphers/hashes in PyCrypto +</A></li> + <LI>Next message: <A HREF="000280.html">[pycrypto] PyCrypto needs your help +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#277">[ date ]</a> + <a href="thread.html#277">[ thread ]</a> + <a href="subject.html#277">[ subject ]</a> + <a href="author.html#277">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Hi, + +I just tried to build pycrypto for python-2.6.6 (x64) on Windows 7, for +found that it can't build _fastmath because there is no GMP on Windows. + +I google for a while and found MPIR (<A HREF="http://www.mpir.org/">http://www.mpir.org/</A>). There is a +script 'to_gmp.bat' in the MPIR build folder that rename mpir.lib, mpir.dll, +and the relevant header files to gmp. + +After trying for 4 hours, I got a solution. (it may not accurate right, but +it just works.) + +First, I build MPIR as Release|x86 for both lib and dll: + + - open "Visual Studio 2008 x64 Win64 Command Prompt" + - cd mpir-2.1.3\build.vc9 # Change to the path that you extract MPIR. + - msbuild mpir.sln /p:Configuration=Release /p:Platform=x64 + /t:lib_mpir_nehalem # <-- my cpu, you can try others. + - msbuild mpir.sln /p:Configuration=Release /p:Platform=x64 + /t:dll_mpir_nehalem + - to_gmp.bat # Convert libraries and headers to GMP. + +Then, copy *.h except config.h from *DLL *output to your python\PC + + - cd mpir-2.1.3\build.vc9\dll\x64\Release + - mkdir C:\Python26\PC + - copy gmp*.h C:\Python26\PC + - copy mpir*.h C:\Python26\PC + +And copy gmp.lib from *LIB *output to your python\PCbuild\amd64 # *Sound +weird?* But trust me, I already try other ways and they were failed. + + - mkdir C:\Python26\PCbuild + - mkdir C:\Python26\PCbuild\amd64 + - cd mpir-2.1.3\build.vc9\lib\x64\Release + - copy gmp.lib C:\Python26\PCbuild\amd64 + +Now, in the extracted pycrypto folder, I copy src\_fastmath.c to +src\_fastmath.cpp and do some changes on _fastmath.cpp to make it C++ +friendly. +Well, the patch is quite large because I move the whole sieve_base to the +very top of the file. So you better see the patch file that I'm attached to +this mail. +I also change the setup.py to build the _fastmath.cpp instead of +_fastmath.c. +Finally, build the pycrypto and install it. + + - python setup.py build + - python setup.py install --optimize=1 + +If you look in the C:\Python26\Lib\site-packages\Crypto\PublicKey, you will +found _fastmath.pyd. +Now, the most excited part! Let's benchmark it. + +Without _fastmath (you can try it by rename _fastmath.pyd to something such +as _fastmath.xxx): + +In [1]: from datetime import datetime + +In [2]: from Crypto.PublicKey import pubkey + +In [3]: def tdiff(n): + ...: before = datetime.now() + ...: pubkey.getStrongPrime(n) + ...: print datetime.now()-before + ...: + +In [4]: tdiff(512) +0:00:00.348000 + +In [5]: tdiff(1024) +0:00:00.565000 + +In [6]: tdiff(2048) +0:00:03.308000 + +In [7]: tdiff(4096) +0:01:39.202000 # == (1*60)+39.202 == 99.202 + +With _fastmath: + + +In [1]: from datetime import datetime + +In [2]: from Crypto.PublicKey import pubkey + +In [3]: def tdiff(n): + ...: before = datetime.now() + ...: pubkey.getStrongPrime(n) + ...: print datetime.now()-before + ...: + +In [4]: tdiff(512) +0:00:00.123000 + +In [5]: tdiff(1024) +0:00:00.333000 + +In [6]: tdiff(2048) +0:00:00.675000 + +In [7]: tdiff(4096) +0:00:06.446000 + +So, the conclusion: + +n without with faster + _fastmath _fastmath + +512 00.348 00.123 182.93% +1024 00.565 00.333 69.67% +2048 03.308 00.675 390.07% +4096 99.202 06.446 1438.97% + +So, I think it's really worth to do (if you're stuck on Windows Platform). + +Regards, +Chaiwat.S +-------------- next part -------------- +An HTML attachment was scrubbed... +URL: <A HREF="http://lists.dlitz.net/pipermail/pycrypto/attachments/20101015/ad987b34/attachment.htm">http://lists.dlitz.net/pipermail/pycrypto/attachments/20101015/ad987b34/attachment.htm</A> +-------------- next part -------------- +A non-text attachment was scrubbed... +Name: msvc9-patches.7z +Type: application/octet-stream +Size: 13240 bytes +Desc: not available +Url : <A HREF="http://lists.dlitz.net/pipermail/pycrypto/attachments/20101015/ad987b34/attachment-0001.obj">http://lists.dlitz.net/pipermail/pycrypto/attachments/20101015/ad987b34/attachment-0001.obj</A> +</PRE> + + + + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000279.html">[pycrypto] On the future of new ciphers/hashes in PyCrypto +</A></li> + <LI>Next message: <A HREF="000280.html">[pycrypto] PyCrypto needs your help +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#277">[ date ]</a> + <a href="thread.html#277">[ thread ]</a> + <a href="subject.html#277">[ subject ]</a> + <a href="author.html#277">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">More information about the pycrypto +mailing list</a><br> +</body></html> |