我是用於C++的LAPACK庫。我從事大規模矩陣和QR分解。我在使用代碼塊中的Lapack庫時遇到了問題。我根據以下鏈接鏈接了這個庫和代碼塊: How do I link to a library with Code::Blocks?。我的code :: blocks知道Lapacks中的所有頭文件,命令和函數,但是我無法運行用於QR事實化的dgeqrf
函數,並且出現此錯誤:undefined reference to
dgeqrf`。我如何確定我能正確安裝LAPACK和犰狳庫?
我也試過用 armadillo庫。我能夠運行它的簡單命令,但是當我想運行qr(Q,R,X)
進行因式分解時,會出現此錯誤:undefined reference to _gfortran_compare_string'
。所以,我認爲這個問題可能在安裝過程中(對於lapack來說)。我已經下載了新版本的LAPACK並使用CMakein C:\ lapack進行安裝。我的操作系統是Windows 7(64位)。 誰能說出我的錯誤在哪裏?在安裝步驟或鏈接步驟中,我如何找到此問題的原因以及如何解決? 的LAPACK庫生成日誌消息:
-------------- Build: Debug in lllll (compiler: GNU GCC Compiler)---------------
mingw32-g++.exe -LC:\lapack -LC:\arma -LC:\ttmath-0.9.3 -L"C:\Program Files\R\R-3.2.1\include" -LC:\lapack\lib -LC:\arma -o bin\Debug\lllll.exe obj\Debug\main.o C:\lapack\lib\libblas.a C:\lapack\lib\liblapack.a C:\lapack\lib\liblapacke.a C:\lapack\lib\libtmglib.a C:\arma\examples\lib_win64\blas_win64_MT.lib C:\arma\examples\lib_win64\lapack_win64_MT.lib
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x376): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x3a1): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x3e6): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x40d): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x434): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x45b): more undefined references to `_gfortran_compare_string' follow
C:/Program Files (x86)/CodeBlocks/MinGW/bin/../lib/gcc/mingw32/4.9.2/../../../../mingw32/bin/ld.exe: C:\lapack\lib\liblapack.a(ilaenv.f.obj): bad reloc address 0x60 in section `.rdata'
C:/Program Files (x86)/CodeBlocks/MinGW/bin/../lib/gcc/mingw32/4.9.2/../../../../mingw32/bin/ld.exe: final link failed: Invalid operation
collect2.exe: error: ld returned 1 exit status
也爲犰狳庫:
-------------- Build: Debug in ltest (compiler: GNU GCC Compiler)---------------
mingw32-g++.exe -Wall -fexceptions -g -IC:\ttmath-0.9.3 -I"C:\Program Files\R\R-3.2.1\include" -IC:\lapack\include -IC:\arma\include -c "D:\c++ code\ltest\main.cpp" -o obj\Debug\main.o
mingw32-g++.exe -LC:\ttmath-0.9.3 -L"C:\Program Files\R\R-3.2.1\include" -LC:\lapack\lib -LC:\arma -o bin\Debug\ltest.exe obj\Debug\main.o C:\arma\examples\lib_win64\blas_win64_MT.lib C:\arma\examples\lib_win64\lapack_win64_MT.lib C:\lapack\lib\libblas.a C:\lapack\lib\liblapack.a C:\lapack\lib\liblapacke.a C:\lapack\lib\libtmglib.a
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x376): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x3a1): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x3e6): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x40d): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x434): undefined reference to `_gfortran_compare_string'
C:\lapack\lib\liblapack.a(ilaenv.f.obj):ilaenv.f:(.text+0x45b): more undefined references to `_gfortran_compare_string' follow
C:/Program Files (x86)/CodeBlocks/MinGW/bin/../lib/gcc/mingw32/4.9.2/../../../../mingw32/bin/ld.exe: C:\lapack\lib\liblapack.a(ilaenv.f.obj): bad reloc address 0x60 in section `.rdata'
C:/Program Files (x86)/CodeBlocks/MinGW/bin/../lib/gcc/mingw32/4.9.2/../../../../mingw32/bin/ld.exe: final link failed: Invalid operation
collect2.exe: error: ld returned 1 exit status
顯示您正在使用的鏈接命令 – stark
沒有人能夠看到爲什麼您的鏈接失敗,而沒有看到 失敗的鏈接命令。請將複製失敗的完整版本日誌複製並粘貼到您的問題中。您可以在失敗的代碼塊構建的** Build log **選項卡(而不是** Build messages **選項卡)中找到它。 –
@MikeKinghan感謝您的評論,我在我的問題中粘貼了構建日誌。 – Ham82