Fortran module: RNDGEN

• Simple implementation, ready for multiple random independent generators

How to compile and run:

$ gfortran examples/example.f90 -o example
$ ./example

Expected output: examples/output-example.txt

Using two independent generators:

$ gfortran examples/example-2gen.f90 -o example-2gen
$ ./example-2gen 21382144 21382147 # seed1 seed2

Expected output: examples/output-example-2gen.txt

Commands:

• Include the file in your code: include '../mod_rndgen.f90'
• Use the module after the program: use mod_rndgen
• Declare a generator as type(rndgen) :: generator
• Initialize it with a seed: call generator%init(23242394)
• Print a random real number U(0,1): print*, generator%rnd()
• Print a integer between a and b: print*, generator%int(a,b)
• Reset the generator: call generator%reset()

TODO: instructions of rndgenPL