numerics Module Reference

Managing of parameters related to numerics. More...

Functions/Subroutines
subroutine, public	numerics_init
	reads in parameters from numerics.config and sets openMP related parameters. Also does More...

Variables
integer, public, protected	ijacostiffness = 1
	frequency of stiffness update More...
integer, public, protected	randomseed = 0
	fixed seeding for pseudo-random number generator, Default 0: use random seed More...
integer, public, protected	worldrank = 0
	MPI worldrank (/=0 for MPI simulations only) More...
integer, public, protected	worldsize = 1
	MPI worldsize (/=1 for MPI simulations only) More...
integer, public, protected	numerics_integrator = 1
	method used for state integration Default 1: fix-point iteration More...
integer(4), public, protected	damask_numthreadsint = 0
	value stored in environment variable DAMASK_NUM_THREADS, set to zero if no OpenMP directive More...
real(preal), public, protected	defgradtolerance = 1.0e-7_pReal
	deviation of deformation gradient that is still allowed (used by CPFEM to determine outdated ffn1) More...
real(preal), public, protected	numerics_unitlength = 1.0_pReal
	determines the physical length of one computational length unit More...
real(preal), public, protected	charlength = 1.0_pReal
	characteristic length scale for gradient problems More...
real(preal), public, protected	residualstiffness = 1.0e-6_pReal
	non-zero residual damage More...
logical, public, protected	usepingpong = .true.
real(preal), public, protected	err_struct_tolabs = 1.0e-10_pReal
	absolute tolerance for mechanical equilibrium More...
real(preal), public, protected	err_struct_tolrel = 1.0e-4_pReal
	relative tolerance for mechanical equilibrium More...
real(preal), public, protected	err_thermal_tolabs = 1.0e-2_pReal
	absolute tolerance for thermal equilibrium More...
real(preal), public, protected	err_thermal_tolrel = 1.0e-6_pReal
	relative tolerance for thermal equilibrium More...
real(preal), public, protected	err_damage_tolabs = 1.0e-2_pReal
	absolute tolerance for damage evolution More...
real(preal), public, protected	err_damage_tolrel = 1.0e-6_pReal
	relative tolerance for damage evolution More...
integer, public, protected	itmax = 250
	maximum number of iterations More...
integer, public, protected	itmin = 1
	minimum number of iterations More...
integer, public, protected	stagitmax = 10
	max number of field level staggered iterations More...
integer, public, protected	maxcutback = 3
	max number of cut backs More...

Detailed Description

Managing of parameters related to numerics.

Author

Franz Roters, Max-Planck-Institut für Eisenforschung GmbH

Philip Eisenlohr, Max-Planck-Institut für Eisenforschung GmbH

Function/Subroutine Documentation

numerics_init()

subroutine, public numerics::numerics_init

reads in parameters from numerics.config and sets openMP related parameters. Also does

Definition at line 1519 of file numerics.f90.

References charlength, defgradtolerance, err_damage_tolabs, err_damage_tolrel, err_struct_tolabs, err_struct_tolrel, err_thermal_tolabs, err_thermal_tolrel, ijacostiffness, io::io_error(), io::io_floatvalue(), io::io_intvalue(), io::io_isblank(), io::io_lc(), io::io_read_ascii(), io::io_stringpos(), io::io_stringvalue(), itmax, itmin, maxcutback, numerics_integrator, numerics_unitlength, randomseed, residualstiffness, stagitmax, usepingpong, worldrank, and worldsize.

Referenced by cpfem2::cpfem_initall().

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Variable Documentation

charlength

real(preal), public, protected numerics::charlength = 1.0_pReal

characteristic length scale for gradient problems

Definition at line 1478 of file numerics.f90.

Referenced by numerics_init().

damask_numthreadsint

integer(4), public, protected numerics::damask_numthreadsint = 0

value stored in environment variable DAMASK_NUM_THREADS, set to zero if no OpenMP directive

Definition at line 1476 of file numerics.f90.

defgradtolerance

real(preal), public, protected numerics::defgradtolerance = 1.0e-7_pReal

deviation of deformation gradient that is still allowed (used by CPFEM to determine outdated ffn1)

Definition at line 1478 of file numerics.f90.

Referenced by numerics_init().

err_damage_tolabs

real(preal), public, protected numerics::err_damage_tolabs = 1.0e-2_pReal

absolute tolerance for damage evolution

Definition at line 1488 of file numerics.f90.

Referenced by grid_damage_spectral::grid_damage_spectral_solution(), and numerics_init().

err_damage_tolrel

real(preal), public, protected numerics::err_damage_tolrel = 1.0e-6_pReal

relative tolerance for damage evolution

Definition at line 1488 of file numerics.f90.

Referenced by grid_damage_spectral::grid_damage_spectral_solution(), and numerics_init().

err_struct_tolabs

real(preal), public, protected numerics::err_struct_tolabs = 1.0e-10_pReal

absolute tolerance for mechanical equilibrium

Definition at line 1488 of file numerics.f90.

Referenced by numerics_init().

err_struct_tolrel

real(preal), public, protected numerics::err_struct_tolrel = 1.0e-4_pReal

relative tolerance for mechanical equilibrium

Definition at line 1488 of file numerics.f90.

Referenced by numerics_init().

err_thermal_tolabs

real(preal), public, protected numerics::err_thermal_tolabs = 1.0e-2_pReal

absolute tolerance for thermal equilibrium

Definition at line 1488 of file numerics.f90.

Referenced by grid_thermal_spectral::grid_thermal_spectral_solution(), and numerics_init().

err_thermal_tolrel

real(preal), public, protected numerics::err_thermal_tolrel = 1.0e-6_pReal

relative tolerance for thermal equilibrium

Definition at line 1488 of file numerics.f90.

Referenced by grid_thermal_spectral::grid_thermal_spectral_solution(), and numerics_init().

ijacostiffness

integer, public, protected numerics::ijacostiffness = 1

frequency of stiffness update

Definition at line 1470 of file numerics.f90.

Referenced by numerics_init().

itmax

integer, public, protected numerics::itmax = 250

maximum number of iterations

Definition at line 1495 of file numerics.f90.

Referenced by grid_mech_spectral_basic::converged(), grid_mech_fem::converged(), grid_mech_spectral_polarisation::converged(), grid_mech_spectral_basic::formresidual(), grid_mech_fem::formresidual(), grid_mech_spectral_polarisation::formresidual(), grid_damage_spectral::grid_damage_spectral_solution(), grid_thermal_spectral::grid_thermal_spectral_solution(), and numerics_init().

itmin

integer, public, protected numerics::itmin = 1

minimum number of iterations

Definition at line 1495 of file numerics.f90.

Referenced by grid_mech_spectral_basic::converged(), grid_mech_fem::converged(), grid_mech_spectral_polarisation::converged(), grid_mech_spectral_basic::formresidual(), grid_mech_fem::formresidual(), grid_mech_spectral_polarisation::formresidual(), and numerics_init().

maxcutback

integer, public, protected numerics::maxcutback = 3

max number of cut backs

Definition at line 1495 of file numerics.f90.

Referenced by numerics_init().

numerics_integrator

integer, public, protected numerics::numerics_integrator = 1

method used for state integration Default 1: fix-point iteration

Definition at line 1470 of file numerics.f90.

Referenced by crystallite::crystallite_init(), material::material_allocateplasticstate(), material::material_allocatesourcestate(), and numerics_init().

numerics_unitlength

real(preal), public, protected numerics::numerics_unitlength = 1.0_pReal

determines the physical length of one computational length unit

Definition at line 1478 of file numerics.f90.

Referenced by numerics_init().

randomseed

integer, public, protected numerics::randomseed = 0

fixed seeding for pseudo-random number generator, Default 0: use random seed

Definition at line 1470 of file numerics.f90.

Referenced by math::math_init(), and numerics_init().

residualstiffness

real(preal), public, protected numerics::residualstiffness = 1.0e-6_pReal

non-zero residual damage

Definition at line 1478 of file numerics.f90.

Referenced by grid_damage_spectral::formresidual(), and numerics_init().

stagitmax

integer, public, protected numerics::stagitmax = 10

max number of field level staggered iterations

Definition at line 1495 of file numerics.f90.

Referenced by numerics_init().

usepingpong

logical, public, protected numerics::usepingpong = .true.

Definition at line 1483 of file numerics.f90.

Referenced by crystallite::crystallite_init(), and numerics_init().

worldrank

integer, public, protected numerics::worldrank = 0

MPI worldrank (/=0 for MPI simulations only)

Definition at line 1470 of file numerics.f90.

Referenced by discretization_grid::discretization_grid_init(), grid_damage_spectral::grid_damage_spectral_init(), grid_mech_fem::grid_mech_fem_init(), grid_mech_fem::grid_mech_fem_restartwrite(), grid_mech_spectral_basic::grid_mech_spectral_basic_init(), grid_mech_spectral_basic::grid_mech_spectral_basic_restartwrite(), grid_mech_spectral_polarisation::grid_mech_spectral_polarisation_init(), grid_mech_spectral_polarisation::grid_mech_spectral_polarisation_restartwrite(), grid_thermal_spectral::grid_thermal_spectral_init(), hdf5_utilities::initialize_read(), hdf5_utilities::initialize_write(), numerics_init(), results::results_mapping_constituent(), results::results_mapping_materialpoint(), spectral_utilities::utilities_constitutiveresponse(), spectral_utilities::utilities_savereferencestiffness(), and spectral_utilities::utilities_updatecoords().

worldsize

integer, public, protected numerics::worldsize = 1

MPI worldsize (/=1 for MPI simulations only)

Definition at line 1470 of file numerics.f90.

Referenced by discretization_grid::discretization_grid_init(), grid_damage_spectral::grid_damage_spectral_init(), grid_mech_fem::grid_mech_fem_init(), grid_mech_spectral_basic::grid_mech_spectral_basic_init(), grid_mech_spectral_polarisation::grid_mech_spectral_polarisation_init(), grid_thermal_spectral::grid_thermal_spectral_init(), hdf5_utilities::initialize_read(), hdf5_utilities::initialize_write(), numerics_init(), results::results_mapping_constituent(), results::results_mapping_materialpoint(), and spectral_utilities::utilities_updatecoords().