Hi,

I have spent some time trying to use different methods to build numpyon Windows 64bit with a version of BLAS/LAPACK other than the inbuilt one (no slur on the inbuilt one it is excellent, I am simply attempting to see if there is any alternative with better performance). The most recent i have tried is from here: http://icl.cs.utk.edu/lapack-for-windows/index.html

I used the installer and set the site.cfg file up in the following manner:

[blas] library_dirs = C:\Program Files (x86)\University Of Tennessee\LAPACK 3.1.1\lib\x64 blas_libs = BLAS include_dirs = C:\Program Files (x86)\University Of Tennessee\LAPACK 3.1.1\src [lapack] language = f77 lapack_libs = LAPACK library_dirs = C:\Program Files (x86)\University Of Tennessee\LAPACK 3.1.1\lib\x64 include_dirs = C:\Program Files (x86)\University Of Tennessee\LAPACK 3.1.1\src

I have installed both intel's and pgi's fortran compilers in an attempt to get numpy to complete a compilation using these libraries, but have not been successful, both trip up at this point:

lapack_litemodule.obj : warning LNK4197: export 'initlapack_lite' specified mult iple times; using first specification Creating library build\temp.win-amd64-2.6\Release\numpy\linalg\ lapack_lite.li b and object build\temp.win-amd64-2.6\Release\numpy\linalg\lapack_lite.exp lapack_litemodule.obj : error LNK2019: unresolved external symbol dgeev_ referen ced in function lapack_lite_dgeev lapack_litemodule.obj : error LNK2019: unresolved external symbol dsyevd_ refere nced in function lapack_lite_dsyevd lapack_litemodule.obj : error LNK2019: unresolved external symbol zheevd_ refere nced in function lapack_lite_zheevd lapack_litemodule.obj : error LNK2019: unresolved external symbol dgelsd_ refere nced in function lapack_lite_dgelsd lapack_litemodule.obj : error LNK2019: unresolved external symbol dgesv_ referen ced in function lapack_lite_dgesv lapack_litemodule.obj : error LNK2019: unresolved external symbol dgesdd_ refere nced in function lapack_lite_dgesdd lapack_litemodule.obj : error LNK2019: unresolved external symbol dgetrf_ refere nced in function lapack_lite_dgetrf lapack_litemodule.obj : error LNK2019: unresolved external symbol dpotrf_ refere nced in function lapack_lite_dpotrf lapack_litemodule.obj : error LNK2019: unresolved external symbol dgeqrf_ refere nced in function lapack_lite_dgeqrf lapack_litemodule.obj : error LNK2019: unresolved external symbol dorgqr_ refere nced in function lapack_lite_dorgqr lapack_litemodule.obj : error LNK2019: unresolved external symbol zgeev_ referen ced in function lapack_lite_zgeev lapack_litemodule.obj : error LNK2019: unresolved external symbol zgelsd_ refere nced in function lapack_lite_zgelsd lapack_litemodule.obj : error LNK2019: unresolved external symbol zgesv_ referen ced in function lapack_lite_zgesv lapack_litemodule.obj : error LNK2019: unresolved external symbol zgesdd_ refere nced in function lapack_lite_zgesdd lapack_litemodule.obj : error LNK2019: unresolved external symbol zgetrf_ refere nced in function lapack_lite_zgetrf lapack_litemodule.obj : error LNK2019: unresolved external symbol zpotrf_ refere nced in function lapack_lite_zpotrf lapack_litemodule.obj : error LNK2019: unresolved external symbol zgeqrf_ refere nced in function lapack_lite_zgeqrf lapack_litemodule.obj : error LNK2019: unresolved external symbol zungqr_ refere nced in function lapack_lite_zungqr build\lib.win-amd64-2.6\numpy\linalg\lapack_lite.pyd : fatal error LNK1120: 18 u nresolved externals error: Command "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\ link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:"C:\Program Files (x86)\Universit y Of Tennessee\LAPACK 3.1.1\lib\x64" /LIBPATH:C:\Python26\libs /LIBPATH:C:\Pytho n26\PCbuild\amd64 LAPACKd.lib BLASd.lib /EXPORT:initlapack_lite build\temp.win-a md64-2.6\Release\numpy\linalg\lapack_litemodule.obj /OUT:build\lib.win-amd64-2.6 \numpy\linalg\lapack_lite.pyd /IMPLIB:build\temp.win-amd64-2.6\Release\numpy\lin alg\lapack_lite.lib /MANIFESTFILE:build\temp.win-amd64-2.6\Release\numpy\linalg\ lapack_lite.pyd.manifest" failed with exit status 1120

I appreciate any help or ideas anyone has,

Cheers,

Hanni