Fortran would not be my first choice for working with text, in any form! However, sometimes even numerical codes need to read data from configuration files. The easiest way to read a configuration file from a Fortran 90 routine is by using namelist I/O (I really need to add an example of that). If you’re […]
Parsing INI configuration files with FORTRAN Read More »
I’ve just released a self-contained Fortran module that solves a system of linear equations using the LU decomposition. Download the Fortran linear solver from github This module is based on code that was implemented and released on the Web by Jean-Pierre Moreau. His implementation was based on one of the Numerical Recipes books. I updated
A self-contained Fortran linear equation solver Read More »
I have been optimizing some Fortran code that involved searching for an integer value in an unordered array (we know the value occurs only once). Since there is no intrinsic procedure to accomplish this, I thought I’d try a couple of approaches to see which was fastest. The simple answer is that, in this case,
Finding a value in an unordered Fortran array Read More »
I’m using GNU Fortran (gfortran) to build several shared libraries, and then dynamically linking to them from a Fortran program. The process is a little different than what I’m used to for C libraries, so I thought I’d explain it. Unlike C, there is no need to #include header files when compiling code that relies
Building and linking to a shared Fortran library Read More »
I have recently started using f2py to call Fortran from Python. I have found this useful for two reasons: speeding up Python scripts by calling compiled Fortran code, and using Python as a unit testing framework for Fortran modules. Unfortunately, the documentation for f2py is rather sparse, and may not be completely up to date.
f2py: binding Fortran and Python Read More »