!--------------------------------------------------------------------------------------------------
! $Id$
!--------------------------------------------------------------------------------------------------
!> @author Franz Roters, Max-Planck-Institut für Eisenforschung GmbH
!> @author Philip Eisenlohr, Max-Planck-Institut für Eisenforschung GmbH
!> @author Christoph Kords, Max-Planck-Institut für Eisenforschung GmbH
!> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH
!> @author Luv Sharma, Max-Planck-Institut für Eisenforschung GmbH
!> @brief setting precision for real and int type depending on makros "FLOAT" and "INT"
!> @details setting precision for real and int type and for DAMASK_NaN. Definition is made
!! depending on makros "FLOAT" and "INT" defined during compilation
!--------------------------------------------------------------------------------------------------
module prec
implicit none
private
#if (FLOAT==4)
#if defined(Spectral) || defined(FEM)
SPECTRAL SOLVER AND OWN FEM DO NOT SUPPORT SINGLE PRECISION, STOPPING COMPILATION
#endif
integer, parameter, public :: pReal = 4 !< floating point single precition (was selected_real_kind(6,37), number with 6 significant digits, up to 1e+-37)
#ifdef __INTEL_COMPILER
real(pReal), parameter, public :: DAMASK_NaN = Z'7F800001' !< quiet NaN for single precision (from http://www.hpc.unimelb.edu.au/doc/f90lrm/dfum_035.html, copy can be found in documentation/Code/Fortran)
#endif
#ifdef __GFORTRAN__
real(pReal), parameter, public :: DAMASK_NaN = real(Z'7F800001', pReal) !< quiet NaN for single precision (from http://www.hpc.unimelb.edu.au/doc/f90lrm/dfum_035.html, copy can be found in documentation/Code/Fortran)
#endif
#elif (FLOAT==8)
integer, parameter, public :: pReal = 8 !< floating point double precision (was selected_real_kind(15,300), number with 15 significant digits, up to 1e+-300)
#ifdef __INTEL_COMPILER
real(pReal), parameter, public :: DAMASK_NaN = Z'7FF8000000000000' !< quiet NaN for double precision (from http://www.hpc.unimelb.edu.au/doc/f90lrm/dfum_035.html, copy can be found in documentation/Code/Fortran)
#endif
#ifdef __GFORTRAN__
real(pReal), parameter, public :: DAMASK_NaN = real(Z'7FF8000000000000', pReal) !< quiet NaN for double precision (from http://www.hpc.unimelb.edu.au/doc/f90lrm/dfum_035.html, copy can be found in documentation/Code/Fortran)
#endif
#else
NO SUITABLE PRECISION FOR REAL SELECTED, STOPPING COMPILATION
#endif
#if (INT==4)
integer, parameter, public :: pInt = 4 !< integer representation 32 bit (was selected_int_kind(9), number with at least up to +- 1e9)
#elif (INT==8)
integer, parameter, public :: pInt = 8 !< integer representation 64 bit (was selected_int_kind(12), number with at least up to +- 1e12)
#else
NO SUITABLE PRECISION FOR INTEGER SELECTED, STOPPING COMPILATION
#endif
integer, parameter, public :: pLongInt = 8 !< integer representation 64 bit (was selected_int_kind(12), number with at least up to +- 1e12)
real(pReal), parameter, public :: tol_math_check = 1.0e-8_pReal !< tolerance for internal math self-checks (rotation)
type, public :: p_vec !< variable length datatype used for storage of state
real(pReal), dimension(:), allocatable :: p
end type p_vec
type, public :: p_intvec
integer(pInt), dimension(:), allocatable :: p
end type p_intvec
!http://stackoverflow.com/questions/3948210/can-i-have-a-pointer-to-an-item-in-an-allocatable-array
type, public :: tState
integer(pInt) :: sizeState = 0_pInt , &
sizeDotState = 0_pInt, &
sizePostResults = 0_pInt
logical :: nonlocal = .false.
real(pReal), allocatable, dimension(:) :: atolState
real(pReal), allocatable, dimension(:,:) :: state, & ! material points, state size
dotState, &
state0, &
partionedState0, &
subState0, &
state_backup, &
deltaState, &
previousDotState, &
previousDotState2, &
dotState_backup, &
RK4dotState
real(pReal), allocatable, dimension(:,:,:) :: RKCK45dotState
end type
type, public :: tFieldData
integer(pInt) :: sizeField = 0_pInt , &
sizePostResults = 0_pInt
real(pReal), allocatable, dimension(:,:) :: field ! material points, state size
end type
public :: &
prec_init
contains
!--------------------------------------------------------------------------------------------------
!> @brief reporting precision and checking if DAMASK_NaN is set correctly
!--------------------------------------------------------------------------------------------------
subroutine prec_init
use, intrinsic :: iso_fortran_env ! to get compiler_version and compiler_options (at least for gfortran 4.6 at the moment)
implicit none
integer(pInt) :: worldrank = 0_pInt
#ifdef PETSc
#include <finclude/petscsys.h>
PetscErrorCode :: ierr
#endif
external :: &
quit
#ifdef PETSc
call MPI_Comm_rank(PETSC_COMM_WORLD,worldrank,ierr);CHKERRQ(ierr)
#endif
mainProcess: if (worldrank == 0) then
write(6,'(/,a)') ' <<<+- prec init -+>>>'
write(6,'(a)') ' $Id$'
#include "compilation_info.f90"
write(6,'(a,i3)') ' Bytes for pReal: ',pReal
write(6,'(a,i3)') ' Bytes for pInt: ',pInt
write(6,'(a,i3)') ' Bytes for pLongInt: ',pLongInt
write(6,'(a,e10.3)') ' NaN: ', DAMASK_NaN
write(6,'(a,l3,/)') ' NaN /= NaN: ',DAMASK_NaN/=DAMASK_NaN
endif mainProcess
if (DAMASK_NaN == DAMASK_NaN) call quit(9000)
end subroutine prec_init
end module prec