LAPACK/ScaLAPACK Development

Hello

I have Lapack on windows ; i've downloaded the Lapack 3.1.1 installer on http://icl.cs.utk.edu/lapack-for-windows/ ; from the created files, I copied the .lib files (blas.lib, extra.lib, lapack.lib, matgen.lib ) in the appropriate file.
I have also downloaded the prebuilt librairies for Clapack on http://www.netlib.org/clapack/LIB_WINDO ... ndows.html
=> i have all these libs in my folder.
Now I want to compile a some cpp using the dgeev_ function (using visual studio). I have added all my libs to the "additional dependencies" in my project.
When I try to compile, I get about 130 linking errors like :

f77blaswrap.lib(fblaswr.obj) : error LNK2019: unresolved external symbol _cher2k_ referenced in function _f2c_cher2k

=> what's wrong?
As you guessed i'm completly new with the programing stuff (at least with building projects).



Thank you,

Guillaume

Guillaume,
let's start by the beginning.
- on which platform do you want to work: Windows or Linux?
(Linux is easier)
- in which language do you want to code? C or Fortran? Which compiler do you have?
(Lapack is in Fortran but it is not a big problem to call it from C)
CLAPACK is mainly for machines without Fortran compiler.
- what is the purpose? just a quick code? or a big project?
- Do you need good performance (big matrices) or just just need a result?
Bon courage
Julie

Bonsoir Julie

- I'm on windows
- I'm coding in C ; i have no idea if there is a fortran compiler on this machine...
- I want a quick code (for big matrices)

Thanks!

Guillaume

Guillaume,
here is a little VS solution with your code.
http://icl.cs.utk.edu/~julie/CLAPACK-EXAMPLE-vs.zip
It is self contained...I included the lib for clapack
Just open it, build IT and execute.
Hope it helps to get you started
Julie

Hello Julie

Thanks again for your help ; however, when I tried to compile your files, I got a dozen of undefined references to " __ftol2_sse" :
clapackd.lib(dlaqr21.obj) : error LNK2001: unresolved external symbol __ftol2_sse

My Visual Studio version is 7.1 (while you used the 8.0 version to create this example ; maybe it comes from there...).

Guillaume,
try to get your compiled you own CLAPACK ( you can get it from http://www.netlib.org/clapack/CLAPACK-3 ... Studio.zip)
and replace your new compiled librairies with mine.
It might be because we do not have the same machine.
Julie