title: Debug fortran code by visualising execution [Ubuntu18.04]
body: <p>I want to see the step by step execution of a fortran code. 
  I have the option of gdb but i want something more visual inside an editor, something like visual studio code, but faster so that I can execute it till a break point and then see the execution from that point onwards step-by-step.</p>
  
  <p>Any recommendation apart from the traditional terminal gdb for the same purpose ?</p>