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Manual Reference Pages  - mtprng_rand (3m_random)

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NAME

mtprng_rand(3f) - [M_random:MERSENNE TWISTER] Obtain the next 32-bit integer in the pseudo-random sequence (LICENSE:CUSTOM OPEN)

CONTENTS

Synopsis
Description
Options
Returns
Example

SYNOPSIS

function mtprng_rand(state) result(r) type(mtprng_state), intent(inout) :: state integer(INT32) :: r

DESCRIPTION

Obtain the next 32-bit integer in the pseudo-random sequence

OPTIONS

state	generator state initialized by mtprng_init(3f) or mtprng_init_array(3f)

RETURNS

r	The next 32-bit integer in the pseudo-random sequence

EXAMPLE

Sample program:

   program demo_mtprng_rand
   use M_random, only : mtprng_state, mtprng_init, mtprng_rand
   use, intrinsic :: iso_fortran_env, only : int32
   implicit none
   integer(INT32) :: seed
   type(mtprng_state) :: state
     GET_SEED: block
     integer :: count
     integer :: count_rate
        call system_clock(count, count_rate)
        seed = count
     endblock GET_SEED
     call mtprng_init(seed, state)
     ! returns a INT32 integer with a range in 0 .. 2^31-1
     write(*,*) mtprng_rand(state)
   end program demo_mtprng_rand

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Nemo Release 3.1

mtprng_rand (3m_random)

April 12, 2023

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