scale_random Module Reference

module RANDOM More...

Functions/Subroutines
subroutine, public	random_setup
	Setup. More...
subroutine	random_uniform_1d (var)
	Get uniform random number ( 1D ) More...

Detailed Description

module RANDOM

Description

random number generation module

Author

Team SCALE

NAMELIST

• PARAM_RANDOM

  name	type	default value	comment
  RANDOM_FIX	logical	.false.

  
  

History Output

No history output

Function/Subroutine Documentation

random_setup()

subroutine, public scale_random::random_setup

Setup.

Definition at line 64 of file scale_random.F90.

    use scale_prc, only: &
       prc_abort
    implicit none
 
    namelist / param_random / &
       random_fix
 
    integer :: nseeds, ierr
    !---------------------------------------------------------------------------
 
    log_newline
    log_info("RANDOM_setup",*) 'Setup'
 
    !--- read namelist
    rewind(io_fid_conf)
    read(io_fid_conf,nml=param_random,iostat=ierr)
    if( ierr < 0 ) then !--- missing
       log_info("RANDOM_setup",*) 'Not found namelist. Default used.'
    elseif( ierr > 0 ) then !--- fatal error
       log_error("RANDOM_setup",*) 'Not appropriate names in namelist PARAM_RANDOM. Check!'
       call prc_abort
    endif
    log_nml(param_random)
 
    call random_seed
    call random_seed(size=nseeds)
 
    allocate( random_seedvar(nseeds))
 
    log_newline
    log_info("RANDOM_setup",*) 'Array size for random seed:', nseeds
    if ( random_fix ) then
       log_info("RANDOM_setup",*) 'random seed is fixed.'
    endif
 
    call random_reset
 
    return

References scale_io::io_fid_conf, scale_prc::prc_abort(), and scale_prc::prc_myrank.

Referenced by mod_rm_driver::rm_driver(), and mod_rm_prep::rm_prep().

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random_uniform_1d()

subroutine scale_random::random_uniform_1d

(

real(rp), dimension(:), intent(out)

var

)

Get uniform random number ( 1D )

Definition at line 149 of file scale_random.F90.

    implicit none
    real(RP), intent(out) :: var(:)
    !---------------------------------------------------------------------------
 
    call random_number(var)
 
    return

References scale_const::const_pi.