Does Fortran have the ability to run another process?

[lauale]

Hello everybody,
We have a Fortran program that we want upgrade using a opensource program which is write in c.
The c program is a command line tool and is in the public domain. To computes the program, the usage is:

ProgramName <inputfile> <outputfile>

My question is if I can run it from my fortran code.

Thanks

 

[mikrom]

To call external program you can use the system() subroutine/function - see:

https://gcc.gnu.org/onlinedocs/gfortran/SYSTEM.html#SYSTEM

For example how to use system(), you can look at the code I posted in these threads:

https://www.tek-tips.com/viewthread.cfm?qid=1559787

https://www.tek-tips.com/viewthread.cfm?qid=1710427

 

[A King]

Do not use system(). It is not in the Fortran standard and is non-portable. There is a new intrinsic subroutine in Fortran standard 2008, execute_command_line() that you can use to call external command-line applications. For more info, see the textbook, "Modern Fortran Explained" by Metcalf et al 2011.

 

[xwb]

A lot depends on the resources your new process takes. Sometimes you will find that the program executes correctly from the cmd line but not from a program.