Time measuring

[serlancelot]

Hello everybody
I wonder if there exist any standard routine in Lapack libraries, to measure the cpu and wall time, during the esecution of a programcode in Fortran77, Fortran90 or Fortran95. Can anyone help me? Maybe in Lapack there's nothing at all of what I'm looking for, but someone can give me a hand, can suggest me where I can find it..
I also need matrix transpose and matrix condition number calculation. I know that to do all of these things you must install the whole Lapack library, but if you work on a Windows based system, you must do it by Cygwin program. If you liked to do in a Unix system, you need to install the unix system on your computer, with a double boot system (choosing Windows or Unix everytime). But you need to be really good at it, knowing exactly what to do. Great help could be if in the net, there was somewere a handbook, something, on how to do all of these things.
What do you think about it? This is not an actual question, it's only my thoughts, and I need confirmations, and suggests, and help.

Marco

[Julien Langou]

There are some condition number estimators in LAPACK.
For a general matrix, if you do DGETRF + DGECON that will do.

On Windows system, you can develop with cygwin. That works fine.
If you want to be truly Windows native, there is a current effort at UTK
to provide LAPACK libraries, see:
https://icl.cs.utk.edu/lapack-for-windows/

-julien.