Can you change test_taucs_lowlevel.cpp for a non symmetrical coefficient matrix. In that case, not sure which function to replace taucs_ccs_permute_symmetrically which causes the same error as test_taucs2.cpp when A is non-symmetric.

jbgao

The first time when I installed the library, I followed the following steps (I am using MS VC++ on windows)
>configure
>nmake (library created)
>testscript (it worked well except I failed at the first program of cilk.)

After that, when I tried to build my own programs (projects) and I got link errors (missing many references from libtaucs.lib). I spent quite a bit time to research on the internet and found that many have experienced the similar problem. It is only today after carefully tracing scripts I noted that libtaucs.lib is no longer the original one produced from nmake. The original one was deleted in running testscript.bat which calls to configure to produce a new makefile. In this new makefile, there is a block code of the following

$(DIRLIB)libtaucs$(LIBEXT): $(libtaucs_content) $(STDDEPS)
- $(RM) $(DIRLIB)libtaucs$(LIBEXT)
$(AR) $(AOUTFLG)$(DIRLIB)libtaucs$(LIBEXT) $(libtaucs_content)
$(RANLIB) $(DIRLIB)libtaucs$(LIBEXT)

where $RM removes the libtaucs.lib that we need. Instead only relevant object files to the last test are packaged into the new libtaucs.lib which is not the one for other programming.

The best way is to make a copy of libtaucs.lib before you run testscript.bat (OR SIMPLY DON’T TRY TESTSCRIPT AT ALL), or to make a change to the program configure so that a relevant library name is used for each test example in testscript (I reported this to the author).

jbgao

http://matrixprogramming.com/2008/03/usingfortranfromc

So just make sure that you have dgemm_ in the object file and in the library (I guess in libf77blas.lib), then try to link from the command line. If this does not work ask why at some MS group, for example microsoft.public.vc.

I am not going soon to switch to VS9. Sorry. Could it be that they by default assume a .c file as C++?

You could also post your question at

http://groups.google.com/group/matrixprogramming/

It well might be that someone has already tried TAUCS with VS9. Put VS9 in the subject – this is clearly the reason.

—
cl -c /nologo /O2 /W3 /D “WIN32″ /MT -DMACHTYPE_ -I src\\ -I build\\ win32\\ -I external\\src\\ progs\\taucs_blas_underscore_test.c /Foobj\\win32 \\taucs_blas_underscore_test.obj taucs_blas_underscore_test.c progs\\taucs_blas_underscore_test.c(33) : warning C4996: ‘fopen’: This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. c:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\INCLUDE\stdio.h(23
7) : see declaration of ‘fopen’

cl /nologo /MT /F64000000 /Feobj\\win32\\taucs_blas_underscore_test.exe obj\\win32\\taucs_blas_underscore_test.obj external\\lib\\win32\\liblapack.lib external\\lib\\win32\\libf77blas.lib external\\lib\\win32\\libcblas.lib external\\lib\\win32\\libatlas.lib external\\lib\\win32\\libmetis.lib external\\lib\\win32\\vcf2c.libtaucs_blas_underscore_test.obj : error LNK2019: unresolved external symbol dgemm
_ referenced in function main

obj\\win32\\taucs_blas_underscore_test.exe : fatal error LNK1120: 1 unresolved externals
obj\\win32\\taucs_blas_underscore_test.exe build\win32\taucs_config_tests.h ‘obj\\win32\\taucs_blas_underscore_test.exe’ is not recognized as an internal or external command, operable program or batch file.
—

thanks,

cl -c /nologo /O2 /W3 /D “WIN32″ /MT -DMACHTYPE_i386 -I src\\ -I build\\win32\\ -I external\\src\\ progs\\taucs_blas_underscore_test.c /Foobj\\win32\\taucs_blas_underscore_test.obj taucs_blas_underscore_test.c
progs\\taucs_blas_underscore_test.c(33) : warning C4996: ‘fopen’: This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
C:\Program Files (x86)\Microsoft Visual Studio 8\VC\INCLUDE\stdio.h(234): Siehe Deklaration von ‘fopen’
cl /nologo /MT /F64000000 /Feobj\\win32\\taucs_blas_underscore_test.exe obj\\win32\\taucs_blas_underscore_test.obj external\\lib\\win32\\liblapack.lib external\\lib\\win32\\libf77blas.lib external\\lib\\win32\\libcblas.lib external\\lib\\win32\\libatlas.lib external\\lib\\win32\\libmetis.lib external\\lib\\win32\\vcf2c.lib
obj\\win32\\taucs_blas_underscore_test.exe build\win32\taucs_config_tests.h

Linking with dgemm_ succedded

As you see the test was successful. I guess that by you not. Could you please post the lines that you see by you?

I do not have libtaucs.lib, this is what I am trying to compile, but I am not sure why it is first compiling the tests.

I am using taucs_full, and have all the other lib files under /external/lib/win32. Thanks,

You could check it by going to step Using TAUCS from the command line.

thanks!