Hi everyone,
I am facing a strange problem using weave on 64 bit machine. Specifically with weave's inline function. It has something to do with weave's catalog. Similar issues I found in the past (very old) http://mail.scipy.org/pipermail/scipy-dev/2006-June/005908.html http://mail.scipy.org/pipermail/scipy-dev/2005-June/003042.html I have a simple script to calculate moving average using weave's inline function. File mvg.py import numpy as np import scipy.weave as weave import distutils.sysconfig import distutils.dir_util import os distutils.sysconfig._config_vars["LDSHARED"]="-LC:\strawberry64\c\x86_64 -w64-mingw32\lib" def ExpMovAvg(data,time,lag): if (data.size!=time.size): print "error in EMA, data and time have different size" return None result=np.repeat(0.0,data.size) code=""" #line 66 "basics.py" result(0)=data(0); for (int i=0;i<data.size()-1;i++) { //double alpha=1-(2.0/(lag+1)*(time(i)-time(i-1))); double dt=time(i+1)-time(i); double alpha=pow(0.13533, dt / lag); if(alpha>1) { alpha=10; } result(i+1)=(1-alpha)*data(i)+alpha*result(i); } """ weave.inline(code,["data","time","lag","result"],type_converters=weave.c onverters.blitz,headers=["<math.h>"],compiler="gcc",verbose=2) return result file test.py import string import numpy as np import mvg print(mvg.ExpMovAvg(np.array(range(10)),np.array(range(10)),2)) Output: Working output: Y:\STMM\alpha\klse\PROD>c:\python27\python.exe s:\common\tools\python\python-2.7-64bit\test.py [ 0. 0. 0.63212774 1.49679774 2.44701359 3.42869938 4.42196209 5.41948363 6.41857187 7.41823646] Now if I keep running the script multiple times, sometimes I see correct output... but suddenly sometimes I get below error. Y:\STMM\alpha\klse\PROD>c:\python27\python.exe s:\common\tools\python\python-2.7-64bit\test.py repairing catalog by removing key <weave: compiling> Looking for python27.dll running build_ext running build_src build_src building extension "sc_44f3fe3c65d5c3feecb45d9269ac207f5" sources build_src: building npy-pkg config files Looking for python27.dll customize Mingw32CCompiler customize Mingw32CCompiler using build_ext Looking for python27.dll customize Mingw32CCompiler customize Mingw32CCompiler using build_ext building 'sc_44f3fe3c65d5c3feecb45d9269ac207f5' extension compiling C++ sources C compiler: g++ -g -DDEBUG -DMS_WIN64 -O0 -Wall compile options: '-Ic:\python27\lib\site-packages\scipy\weave -Ic:\python27\lib\site-packages\scipy\weave\scxx -Ic:\python27\lib\site-packages\scipy\weave\blitz -Ic:\python27\lib\site-packages\numpy\core\include -Ic:\python27\include -Ic:\python27\PC -c' g++ -g -DDEBUG -DMS_WIN64 -O0 -Wall -Ic:\python27\lib\site-packages\scipy\weave -Ic:\python27\lib\site-packages\scipy\weave\scxx -Ic:\python27\lib\site-packages\scipy\weave\blitz -Ic:\python27\lib\site-packages\numpy\core\include -Ic:\pytho n27\include -Ic:\python27\PC -c c:\users\ajadhav2\appdata\local\temp\ajadhav2\python27_compiled\sc_44f3f e3c65d5c3feecb45d9269ac207f5.cpp -o c:\users\ajadhav2\ap pdata\local\temp\ajadhav2\python27_intermediate\compiler_2d3e1e2e4de6a91 419d2376b162e5342\Release\users\ajadhav2\appdata\local\temp\ajadhav2\pyt hon27_compiled\s c_44f3fe3c65d5c3feecb45d9269ac207f5.o Found executable C:\strawberry\c\bin\g++.exe g++ -g -DDEBUG -DMS_WIN64 -O0 -Wall -Ic:\python27\lib\site-packages\scipy\weave-Ic:\python27\lib\site-packag es\scipy\weave\scxx -Ic:\python27\lib\site-packages \scipy\weave\blitz -Ic:\python27\lib\site-packages\numpy\core\include -Ic:\python27\include -Ic:\python27\PC -c c:\python27\lib\site-packages\scipy\weave\scxx\w eave_imp.cpp -o c:\users\ajadhav2\appdata\local\temp\ajadhav2\python27_intermediate\comp iler_2d3e1e2e4de6a91419d2376b162e5342\Release\python27\lib\site-packages \scipy\weave\scxx\weave_imp.o g++ -g -shared c:\users\ajadhav2\appdata\local\temp\ajadhav2\python27_intermediate\comp iler_2d3e1e2e4de6a91419d2376b162e5342\Release\users\ajadhav2\appdata\loc a l\temp\ajadhav2\python27_compiled\sc_44f3fe3c65d5c3feecb45d9269ac207f5.o c:\users\ajadhav2\appdata\local\temp\ajadhav2\python27_intermediate\comp iler_2d3e1e2e4d e6a91419d2376b162e5342\Release\python27\lib\site-packages\scipy\weave\sc xx\weave_imp.o -Lc:\python27\libs -Lc:\python27\PCbuild\amd64 -lpython27 -lmsvcr90 -o c: \users\ajadhav2\appdata\local\temp\ajadhav2\python27_compiled\sc_44f3fe3 c65d5c3feecb45d9269ac207f5.pyd running scons Traceback (most recent call last): File "s:\common\tools\python\python-2.7-64bit\test.py", line 5, in <module> print(mvg.ExpMovAvg(np.array(range(10)),np.array(range(10)),2)) File "s:\common\tools\python\python-2.7-64bit\mvg.py", line 30, in ExpMovAvg weave.inline(code,["data","time","lag","result"],type_converters=weave.c onve rters.blitz,headers=["<math.h>"],compiler="gcc",verbose=2) File "c:\python27\lib\site-packages\scipy\weave\inline_tools.py", line 355, in inline **kw) File "c:\python27\lib\site-packages\scipy\weave\inline_tools.py", line 488, in compile_function exec 'import ' + module_name File "<string>", line 1, in <module> ImportError: DLL load failed: Invalid access to memory location. Y:\STMM\alpha\klse\PROD> For everytime there is an error I have one observation, the message has notification "repairing catalog by removing key" which leads to DLL load failed error. Any ideas? - Alok =============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html ===============================================================================
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