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DAMASK_EICMD
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DAMASK_EICMD/code/config/numerics.config

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added version information to all files do NOT edit text like this: $Id: constitutive_phenopowerlaw.f90 406 2009-08-31 14:13:10Z MPIE\f.roters $
2009-08-31 20:39:15 +05:30
### $Id$ ###
numerics.config is now optional; if this file does not exist in the working directory, standard values from numerics.f90 are used; either way the output file tells which values were taken. added some output to the init subroutines of debug.f90, FEsolving.f90, lattice.f90, material.f90 and mesh.f90.
2009-06-18 19:58:02 +05:30
### numerical parameters ###
added a new module called numerics.f90 which reads in all numerical "parameters" from the file numerics.config (also being added). From now on this file has to be located in the working directory of the FEM-model and has to contain all necessary parameters.
2009-06-15 18:41:21 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
relevantStrain 1.0e-7 # strain increment considered significant (used by crystallite to determine whether strain inc is considered significant)
defgradTolerance 1.0e-7 # deviation of deformation gradient that is still allowed (used by CPFEM to determine outdated ffn1)
iJacoStiffness 1 # frequency of stiffness update
iJacoLpresiduum 1 # frequency of Jacobian update of residuum in Lp
pert_Fg 1.0e-7 # deformation gradient perturbation for grain tangent
pert_method 1 # perturbation method (1 = forward, 2 = backward or 3 = central)
integrator 1 # integration method (1 = Fixed Point Iteration, 2 = Euler, 3 = Adaptive Euler, 4 = classical 4th order Runge-Kutta, 5 = 5th order Runge-Kutta Cash-Karp)
integratorStiffness 1 # integration method used for stiffness (1 = Fixed Point Iteration, 2 = Euler, 3 = Adaptive Euler, 4 = classical 4th order Runge-Kutta, 5 = 5th order Runge-Kutta Cash-Karp)
analyticJaco 0 # use analytic Jacobian or perturbation (0 = perturbations, 1 = analytic)
new numerics parameter "unitlength" that scales the model size in DAMASK; this enables to use very small models in marc without getting any numerical problems for example with contact which does not seem to work when using very small numbers
2012-09-24 11:43:26 +05:30
unitlength 1 # physical length of one computational length unit
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
## crystallite numerical parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
nCryst 20 # crystallite loop limit (only for debugging info, loop limit is determined by "subStepMinCryst")
subStepMinCryst 1.0e-3 # minimum (relative) size of sub-step allowed during cutback in crystallite
subStepSizeCryst 0.25 # size of substep when cutback introduced in crystallite (value between 0 and 1)
stepIncreaseCryst 1.5 # increase of next substep size when previous substep converged in crystallite (value higher than 1)
nState 10 # state loop limit
nStress 40 # stress loop limit
rTol_crystalliteState 1.0e-6 # relative tolerance in crystallite state loop (abs tol provided by constitutive law)
rTol_crystalliteStress 1.0e-6 # relative tolerance in crystallite stress loop (Lp residuum)
aTol_crystalliteStress 1.0e-8 # absolute tolerance in crystallite stress loop (Lp residuum!)
remove some unused variables, set default value for divergence calculation to 1.e-5 and made calculation independent of dim and res
2013-03-13 00:18:28 +05:30
rTol_crystalliteTemperature 1.0e-6 # relative tolerance in crystallite state/temperature loop
numerics.config is now optional; if this file does not exist in the working directory, standard values from numerics.f90 are used; either way the output file tells which values were taken. added some output to the init subroutines of debug.f90, FEsolving.f90, lattice.f90, material.f90 and mesh.f90.
2009-06-18 19:58:02 +05:30
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
## homogenization numerical parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
nHomog 20 # homogenization loop limit (only for debugging info, loop limit is determined by "subStepMinHomog")
subStepMinHomog 1.0e-3 # minimum (relative) size of sub-step allowed during cutback in homogenization
subStepSizeHomog 0.25 # size of substep when cutback introduced in homogenization (value between 0 and 1)
stepIncreaseHomog 1.5 # increase of next substep size when previous substep converged in homogenization (value higher than 1)
nMPstate 10 # materialpoint state loop limit
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
## RGC scheme numerical parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
aTol_RGC 1.0e+4 # absolute tolerance of RGC residuum (in Pa)
rTol_RGC 1.0e-3 # relative ...
aMax_RGC 1.0e+10 # absolute upper-limit of RGC residuum (in Pa)
rMax_RGC 1.0e+2 # relative ...
perturbPenalty_RGC 1.0e-7 # perturbation for computing penalty tangent
maxRelaxation_RGC 1.0e+0 # threshold of maximum relaxation vector increment (if exceed this then cutback)
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
relevantMismatch_RGC 1.0e-5 # minimum threshold of mismatch
forgotten: the change in the input config
2010-03-24 18:58:46 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
viscosityPower_RGC 1.0e+0 # power (sensitivity rate) of numerical viscosity in RGC scheme
viscosityModulus_RGC 0.0e+0 # stress modulus of RGC numerical viscosity (zero = without numerical viscosity)
# suggestion: larger than the aTol_RGC but still far below the expected flow stress of material
refRelaxationRate_RGC 1.0e-3 # reference rate of relaxation (about the same magnitude as straining rate, possibly a bit higher)
forgotten: the change in the input config
2010-03-24 18:58:46 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
maxVolDiscrepancy_RGC 1.0e-5 # maximum allowable relative volume discrepancy
now consistent with numerics.f90 values
2010-09-21 20:07:52 +05:30
volDiscrepancyMod_RGC 1.0e+12
discrepancyPower_RGC 5.0
forgotten: the change in the input config
2010-03-24 18:58:46 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
fixed_seed 0 # put any number larger than zero, integer, if you want to have a pseudo random distribution
added spectral numeric parameters to numerics.config, changed values for spectral numeric parameters in numerics.f90 to more suitable values for new method for determination of divergence in Fourier space
2011-07-11 19:58:56 +05:30
## spectral parameters ##
set more appropriate default values for spectral solver tolerances (abs stress BC was at huge())
2013-03-26 22:06:52 +05:30
err_div_tol 5.0e-4 # Div(P)/avg(P)*meter
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
err_stress_tolrel 0.01 # relative tolerance for fulfillment of stress BC
set more appropriate default values for spectral solver tolerances (abs stress BC was at huge())
2013-03-26 22:06:52 +05:30
err_stress_tolabs 1.0e3 # absolute tolerance for fulfillment of stress BC
Changed AL solver errors to absolute. Stress boundary error now max of relative and absolute error
2013-03-22 20:16:55 +05:30
err_f_tol 1e-7 # tolerance for compatible and incompatible deformation gradient fields in AL solver
err_p_tol 1e-7 # tolerance for compatible and incompatible stress fields in AL solver
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
fftw_timelimit -1.0 # timelimit of plan creation for FFTW, see manual on www.fftw.org, Default -1.0: disable timelimit
rotation_tol 1.0e-12 # tolerance of rotation specified in loadcase, Default 1.0e-12: first guess
fftw_plan_mode FFTW_PATIENT # reads the planing-rigor flag, see manual on www.fftw.org, Default FFTW_PATIENT: use patient planner flag
set default number of iteration for spectral solver to 250 instead of 40, abaqus doxygen now does the correct inclusion (everything appeared twice before)
2013-03-15 04:40:02 +05:30
itmax 250 # Maximum iteration number
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
itmin 2 # Minimum iteration number
added new cut back parameter for spectral solver and instrumented variables for use with doxygen
2012-09-13 15:18:38 +05:30
maxCutBack 3 # maximum cut back level (0: 1, 1: 0.5, 2: 0.25, etc)
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
memory_efficient 1 # Precalculate Gamma-operator (81 double per point)
update_gamma 0 # Update Gamma-operator with current dPdF (not possible if memory_efficient=1)
remove some unused variables, set default value for divergence calculation to 1.e-5 and made calculation independent of dim and res
2013-03-13 00:18:28 +05:30
divergence_correction 2 # Use dimension-independent divergence criterion
added new cut back parameter for spectral solver and instrumented variables for use with doxygen
2012-09-13 15:18:38 +05:30
myspectralsolver basic # Type of spectral solver (basic: basic, basicPETSc: basic with PETSc, AL: augmented Lagrange)
added filter option to the spectral solver to mitigate spurious oscillations due to gibb's phenomenon. activate by setting myfilter in config file appropriately (currently only 'none' and 'cosine' options coded). more cleaning up of AL code
2012-08-07 22:53:13 +05:30
myfilter none # Type of filtering method to mitigate Gibb's phenomenon (none, cosine, ...)
corrected small issues with PETSc debugging
2013-01-03 21:47:23 +05:30
petsc_options -snes_type ngmres -snes_ngmres_anderson # PetSc solver options
made restart working for all solvers and added corresponding test corrected error handling for FFT based function in case of odd numbers etc.
2012-12-14 23:00:22 +05:30
regridMode 0 # 0: no regrid; 1: regrid if DAMASK doesn't converge; 2: regrid if DAMASK or BVP Solver doesn't converge
forgot in previous commit
2013-02-28 23:07:26 +05:30
polarAlpha 1.0 # polarization scheme parameter 0.0 < alpha < 2.0. alpha = 1.0 ==> AL scheme, alpha = 2.0 ==> accelerated scheme
polarBeta 1.0 # polarization scheme parameter 0.0 < beta < 2.0. beta = 1.0 ==> AL scheme, beta = 2.0 ==> accelerated scheme