DAMASK_EICMD/src/DAMASK_FEM.f90

655 lines
36 KiB
Fortran

!--------------------------------------------------------------------------------------------------
!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
!> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH
!> @author Philip Eisenlohr, Max-Planck-Institut für Eisenforschung GmbH
!> @brief Driver controlling inner and outer load case looping of the FEM solver
!> @details doing cutbacking, forwarding in case of restart, reporting statistics, writing
!> results
!--------------------------------------------------------------------------------------------------
program DAMASK_FEM
use, intrinsic :: &
iso_fortran_env ! to get compiler_version and compiler_options (at least for gfortran >4.6 at the moment)
use prec, only: &
pInt, &
pReal, &
tol_math_check
use DAMASK_interface, only: &
DAMASK_interface_init, &
loadCaseFile, &
getSolverJobName
use IO, only: &
IO_read, &
IO_isBlank, &
IO_open_file, &
IO_stringPos, &
IO_stringValue, &
IO_floatValue, &
IO_intValue, &
IO_error, &
IO_lc, &
IO_intOut, &
IO_warning, &
IO_timeStamp, &
IO_EOF
use debug, only: &
debug_level, &
debug_spectral, &
debug_levelBasic
use math ! need to include the whole module for FFTW
use CPFEM2, only: &
CPFEM_initAll
use FEsolving, only: &
restartWrite, &
restartInc
use numerics, only: &
maxCutBack, &
stagItMax, &
worldrank
use mesh, only: &
mesh_Nboundaries, &
mesh_boundaries, &
geomMesh
use FEM_Utilities, only: &
utilities_init, &
tSolutionState, &
tLoadCase, &
cutBack, &
maxFields, &
nActiveFields, &
FIELD_MECH_ID, &
FIELD_THERMAL_ID, &
FIELD_DAMAGE_ID, &
FIELD_SOLUTE_ID, &
FIELD_MGTWIN_ID, &
COMPONENT_MECH_X_ID, &
COMPONENT_MECH_Y_ID, &
COMPONENT_MECH_Z_ID, &
COMPONENT_THERMAL_T_ID, &
COMPONENT_DAMAGE_PHI_ID, &
COMPONENT_SOLUTE_CV_ID, &
COMPONENT_SOLUTE_CVPOT_ID, &
COMPONENT_SOLUTE_CH_ID, &
COMPONENT_SOLUTE_CHPOT_ID, &
COMPONENT_SOLUTE_CVaH_ID, &
COMPONENT_SOLUTE_CVaHPOT_ID, &
COMPONENT_MGTWIN_PHI_ID, &
FIELD_MECH_label, &
FIELD_THERMAL_label, &
FIELD_DAMAGE_label, &
FIELD_SOLUTE_label, &
FIELD_MGTWIN_label
use FEM_mech
implicit none
#include <petsc/finclude/petsc.h>
!--------------------------------------------------------------------------------------------------
! variables related to information from load case and geom file
integer(pInt), parameter :: FILEUNIT = 234_pInt !< file unit, DAMASK IO does not support newunit feature
integer(pInt), allocatable, dimension(:) :: chunkPos ! this is longer than needed for geometry parsing
integer(pInt) :: &
N_def = 0_pInt !< # of rate of deformation specifiers found in load case file
character(len=65536) :: &
line
!--------------------------------------------------------------------------------------------------
! loop variables, convergence etc.
integer(pInt), parameter :: &
subStepFactor = 2_pInt !< for each substep, divide the last time increment by 2.0
real(pReal) :: &
time = 0.0_pReal, & !< elapsed time
time0 = 0.0_pReal, & !< begin of interval
timeinc = 0.0_pReal, & !< current time interval
timeIncOld = 0.0_pReal, & !< previous time interval
remainingLoadCaseTime = 0.0_pReal !< remaining time of current load case
logical :: &
guess !< guess along former trajectory
integer(pInt) :: &
i, &
errorID, &
cutBackLevel = 0_pInt, & !< cut back level \f$ t = \frac{t_{inc}}{2^l} \f$
stepFraction = 0_pInt !< fraction of current time interval
integer(pInt) :: &
currentLoadcase = 0_pInt, & !< current load case
currentFace = 0_pInt, &
inc, & !< current increment in current load case
totalIncsCounter = 0_pInt, & !< total No. of increments
convergedCounter = 0_pInt, & !< No. of converged increments
notConvergedCounter = 0_pInt, & !< No. of non-converged increments
statUnit = 0_pInt, & !< file unit for statistics output
lastRestartWritten = 0_pInt !< total increment No. at which last restart information was written
integer(pInt) :: &
stagIter, &
component
logical :: &
stagIterate
character(len=6) :: loadcase_string
character(len=1024) :: incInfo !< string parsed to solution with information about current load case
type(tLoadCase), allocatable, dimension(:) :: loadCases !< array of all load cases
type(tSolutionState), allocatable, dimension(:) :: solres
PetscInt :: faceSet, currentFaceSet
PetscInt :: field, dimPlex
PetscErrorCode :: ierr
external :: &
MPI_abort, &
DMGetDimension, &
DMGetLabelSize, &
DMGetLabelIdIS, &
ISDestroy, &
quit
!--------------------------------------------------------------------------------------------------
! init DAMASK (all modules)
call CPFEM_initAll(el = 1_pInt, ip = 1_pInt)
write(6,'(/,a)') ' <<<+- DAMASK_FEM init -+>>>'
write(6,'(a15,a)') ' Current time: ',IO_timeStamp()
#include "compilation_info.f90"
! reading basic information from load case file and allocate data structure containing load cases
call DMGetDimension(geomMesh,dimPlex,ierr)! CHKERRQ(ierr) !< dimension of mesh (2D or 3D)
nActiveFields = 1
allocate(solres(nActiveFields))
!--------------------------------------------------------------------------------------------------
! reading basic information from load case file and allocate data structure containing load cases
call IO_open_file(FILEUNIT,trim(loadCaseFile))
rewind(FILEUNIT)
do
line = IO_read(FILEUNIT)
if (trim(line) == IO_EOF) exit
if (IO_isBlank(line)) cycle ! skip empty lines
chunkPos = IO_stringPos(line)
do i = 1_pInt, chunkPos(1) ! reading compulsory parameters for loadcase
select case (IO_lc(IO_stringValue(line,chunkPos,i)))
case('$loadcase')
N_def = N_def + 1_pInt
end select
enddo ! count all identifiers to allocate memory and do sanity check
enddo
allocate (loadCases(N_def))
do i = 1, size(loadCases)
allocate(loadCases(i)%fieldBC(nActiveFields))
field = 1
loadCases(i)%fieldBC(field)%ID = FIELD_MECH_ID
enddo
do i = 1, size(loadCases)
do field = 1, nActiveFields
select case (loadCases(i)%fieldBC(field)%ID)
case(FIELD_MECH_ID)
loadCases(i)%fieldBC(field)%nComponents = dimPlex !< X, Y (, Z) displacements
allocate(loadCases(i)%fieldBC(field)%componentBC(loadCases(i)%fieldBC(field)%nComponents))
end select
do component = 1, loadCases(i)%fieldBC(field)%nComponents
allocate(loadCases(i)%fieldBC(field)%componentBC(component)%Value(mesh_Nboundaries), source = 0.0_pReal)
allocate(loadCases(i)%fieldBC(field)%componentBC(component)%Mask (mesh_Nboundaries), source = .false.)
enddo
enddo
enddo
!--------------------------------------------------------------------------------------------------
! reading the load case and assign values to the allocated data structure
rewind(FILEUNIT)
do
line = IO_read(FILEUNIT)
if (trim(line) == IO_EOF) exit
if (IO_isBlank(line)) cycle ! skip empty lines
chunkPos = IO_stringPos(line)
do i = 1_pInt, chunkPos(1)
select case (IO_lc(IO_stringValue(line,chunkPos,i)))
!--------------------------------------------------------------------------------------------------
! loadcase information
case('$loadcase')
currentLoadCase = IO_intValue(line,chunkPos,i+1_pInt)
case('face')
currentFace = IO_intValue(line,chunkPos,i+1_pInt)
currentFaceSet = -1_pInt
do faceSet = 1, mesh_Nboundaries
if (mesh_boundaries(faceSet) == currentFace) currentFaceSet = faceSet
enddo
if (currentFaceSet < 0_pInt) call IO_error(error_ID = errorID, ext_msg = 'invalid BC')
case('t','time','delta') ! increment time
loadCases(currentLoadCase)%time = IO_floatValue(line,chunkPos,i+1_pInt)
case('n','incs','increments','steps') ! number of increments
loadCases(currentLoadCase)%incs = IO_intValue(line,chunkPos,i+1_pInt)
case('logincs','logincrements','logsteps') ! number of increments (switch to log time scaling)
loadCases(currentLoadCase)%incs = IO_intValue(line,chunkPos,i+1_pInt)
loadCases(currentLoadCase)%logscale = 1_pInt
case('freq','frequency','outputfreq') ! frequency of result writings
loadCases(currentLoadCase)%outputfrequency = IO_intValue(line,chunkPos,i+1_pInt)
case('r','restart','restartwrite') ! frequency of writing restart information
loadCases(currentLoadCase)%restartfrequency = &
max(0_pInt,IO_intValue(line,chunkPos,i+1_pInt))
case('guessreset','dropguessing')
loadCases(currentLoadCase)%followFormerTrajectory = .false. ! do not continue to predict deformation along former trajectory
!--------------------------------------------------------------------------------------------------
! boundary condition information
case('x') ! X displacement field
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_MECH_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_MECH_X_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('y') ! Y displacement field
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_MECH_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_MECH_Y_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('z') ! Z displacement field
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_MECH_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_MECH_Z_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('temp','temperature') ! thermal field
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_THERMAL_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_THERMAL_T_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('mgtwin') ! mgtwin field
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_MGTWIN_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_MGTWIN_PHI_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('damage')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_DAMAGE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_DAMAGE_PHI_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('cv')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_SOLUTE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_SOLUTE_CV_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('cvpot')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_SOLUTE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_SOLUTE_CVPOT_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('ch')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_SOLUTE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_SOLUTE_CH_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('chpot')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_SOLUTE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_SOLUTE_CHPOT_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('cvah')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_SOLUTE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_SOLUTE_CVaH_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
case('cvahpot')
do field = 1, nActiveFields
if (loadCases(currentLoadCase)%fieldBC(field)%ID == FIELD_SOLUTE_ID) then
do component = 1, loadcases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%ID == COMPONENT_SOLUTE_CVaHPOT_ID) then
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask (currentFaceSet) = &
.true.
loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Value(currentFaceSet) = &
IO_floatValue(line,chunkPos,i+1_pInt)
endif
enddo
endif
enddo
end select
enddo; enddo
close(FILEUNIT)
!--------------------------------------------------------------------------------------------------
! consistency checks and output of load case
loadCases(1)%followFormerTrajectory = .false. ! cannot guess along trajectory for first inc of first currentLoadCase
errorID = 0_pInt
if (worldrank == 0) then
checkLoadcases: do currentLoadCase = 1_pInt, size(loadCases)
write (loadcase_string, '(i6)' ) currentLoadCase
write(6,'(1x,a,i6)') 'load case: ', currentLoadCase
if (.not. loadCases(currentLoadCase)%followFormerTrajectory) &
write(6,'(2x,a)') 'drop guessing along trajectory'
do field = 1_pInt, nActiveFields
select case (loadCases(currentLoadCase)%fieldBC(field)%ID)
case(FIELD_MECH_ID)
write(6,'(2x,a)') 'Field '//trim(FIELD_MECH_label)
case(FIELD_THERMAL_ID)
write(6,'(2x,a)') 'Field '//trim(FIELD_THERMAL_label)
case(FIELD_DAMAGE_ID)
write(6,'(2x,a)') 'Field '//trim(FIELD_DAMAGE_label)
case(FIELD_MGTWIN_ID)
write(6,'(2x,a)') 'Field '//trim(FIELD_MGTWIN_label)
case(FIELD_SOLUTE_ID)
write(6,'(2x,a)') 'Field '//trim(FIELD_SOLUTE_label)
end select
do faceSet = 1_pInt, mesh_Nboundaries
do component = 1_pInt, loadCases(currentLoadCase)%fieldBC(field)%nComponents
if (loadCases(currentLoadCase)%fieldBC(field)%componentBC(component)%Mask(faceSet)) &
write(6,'(4x,a,i2,a,i2,a,f12.7)') 'Face ', mesh_boundaries(faceSet), &
' Component ', component, &
' Value ', loadCases(currentLoadCase)%fieldBC(field)% &
componentBC(component)%Value(faceSet)
enddo
enddo
enddo
write(6,'(2x,a,f12.6)') 'time: ', loadCases(currentLoadCase)%time
if (loadCases(currentLoadCase)%incs < 1_pInt) errorID = 835_pInt ! non-positive incs count
write(6,'(2x,a,i5)') 'increments: ', loadCases(currentLoadCase)%incs
if (loadCases(currentLoadCase)%outputfrequency < 1_pInt) errorID = 836_pInt ! non-positive result frequency
write(6,'(2x,a,i5)') 'output frequency: ', &
loadCases(currentLoadCase)%outputfrequency
write(6,'(2x,a,i5,/)') 'restart frequency: ', &
loadCases(currentLoadCase)%restartfrequency
if (errorID > 0_pInt) call IO_error(error_ID = errorID, ext_msg = loadcase_string) ! exit with error message
enddo checkLoadcases
endif
!--------------------------------------------------------------------------------------------------
! doing initialization depending on selected solver
call Utilities_init()
do field = 1, nActiveFields
select case (loadCases(1)%fieldBC(field)%ID)
case(FIELD_MECH_ID)
call FEM_mech_init(loadCases(1)%fieldBC(field))
end select
enddo
!--------------------------------------------------------------------------------------------------
! loopping over loadcases
loadCaseLooping: do currentLoadCase = 1_pInt, size(loadCases)
time0 = time ! currentLoadCase start time
if (loadCases(currentLoadCase)%followFormerTrajectory) then
guess = .true.
else
guess = .false. ! change of load case, homogeneous guess for the first inc
endif
!--------------------------------------------------------------------------------------------------
! loop oper incs defined in input file for current currentLoadCase
incLooping: do inc = 1_pInt, loadCases(currentLoadCase)%incs
totalIncsCounter = totalIncsCounter + 1_pInt
!--------------------------------------------------------------------------------------------------
! forwarding time
timeIncOld = timeinc
if (loadCases(currentLoadCase)%logscale == 0_pInt) then ! linear scale
timeinc = loadCases(currentLoadCase)%time/loadCases(currentLoadCase)%incs ! only valid for given linear time scale. will be overwritten later in case loglinear scale is used
else
if (currentLoadCase == 1_pInt) then ! 1st currentLoadCase of logarithmic scale
if (inc == 1_pInt) then ! 1st inc of 1st currentLoadCase of logarithmic scale
timeinc = loadCases(1)%time*(2.0_pReal**real( 1_pInt-loadCases(1)%incs ,pReal)) ! assume 1st inc is equal to 2nd
else ! not-1st inc of 1st currentLoadCase of logarithmic scale
timeinc = loadCases(1)%time*(2.0_pReal**real(inc-1_pInt-loadCases(1)%incs ,pReal))
endif
else ! not-1st currentLoadCase of logarithmic scale
timeinc = time0 * &
( (1.0_pReal + loadCases(currentLoadCase)%time/time0 )**(real( inc,pReal)/&
real(loadCases(currentLoadCase)%incs ,pReal))&
-(1.0_pReal + loadCases(currentLoadCase)%time/time0 )**(real( (inc-1_pInt),pReal)/&
real(loadCases(currentLoadCase)%incs ,pReal)))
endif
endif
timeinc = timeinc / 2.0_pReal**real(cutBackLevel,pReal) ! depending on cut back level, decrease time step
forwarding: if(totalIncsCounter >= restartInc) then
stepFraction = 0_pInt
!--------------------------------------------------------------------------------------------------
! loop over sub incs
subIncLooping: do while (stepFraction/subStepFactor**cutBackLevel <1_pInt)
time = time + timeinc ! forward time
stepFraction = stepFraction + 1_pInt
remainingLoadCaseTime = time0 - time + loadCases(currentLoadCase)%time + timeInc
!--------------------------------------------------------------------------------------------------
! report begin of new increment
if (worldrank == 0) then
write(6,'(/,a)') ' ###########################################################################'
write(6,'(1x,a,es12.5'//&
',a,'//IO_intOut(inc)//',a,'//IO_intOut(loadCases(currentLoadCase)%incs)//&
',a,'//IO_intOut(stepFraction)//',a,'//IO_intOut(subStepFactor**cutBackLevel)//&
',a,'//IO_intOut(currentLoadCase)//',a,'//IO_intOut(size(loadCases))//')') &
'Time', time, &
's: Increment ', inc, '/', loadCases(currentLoadCase)%incs,&
'-', stepFraction, '/', subStepFactor**cutBackLevel,&
' of load case ', currentLoadCase,'/',size(loadCases)
flush(6)
write(incInfo,'(a,'//IO_intOut(totalIncsCounter)//',a,'//IO_intOut(sum(loadCases%incs))//&
',a,'//IO_intOut(stepFraction)//',a,'//IO_intOut(subStepFactor**cutBackLevel)//')') &
'Increment ',totalIncsCounter,'/',sum(loadCases%incs),&
'-',stepFraction, '/', subStepFactor**cutBackLevel
endif
!--------------------------------------------------------------------------------------------------
! forward fields
do field = 1, nActiveFields
select case (loadCases(currentLoadCase)%fieldBC(field)%ID)
case(FIELD_MECH_ID)
call FEM_mech_forward (&
guess,timeinc,timeIncOld,loadCases(currentLoadCase)%fieldBC(field))
end select
enddo
!--------------------------------------------------------------------------------------------------
! solve fields
stagIter = 0_pInt
stagIterate = .true.
do while (stagIterate)
do field = 1, nActiveFields
select case (loadCases(currentLoadCase)%fieldBC(field)%ID)
case(FIELD_MECH_ID)
solres(field) = FEM_mech_solution (&
incInfo,timeinc,timeIncOld,loadCases(currentLoadCase)%fieldBC(field))
end select
if(.not. solres(field)%converged) exit ! no solution found
enddo
stagIter = stagIter + 1_pInt
stagIterate = stagIter < stagItMax .and. &
all(solres(:)%converged) .and. &
.not. all(solres(:)%stagConverged)
enddo
! check solution
cutBack = .False.
if(.not. all(solres(:)%converged .and. solres(:)%stagConverged)) then ! no solution found
if (cutBackLevel < maxCutBack) then ! do cut back
if (worldrank == 0) &
write(6,'(/,a)') ' cut back detected'
cutBack = .True.
stepFraction = (stepFraction - 1_pInt) * subStepFactor ! adjust to new denominator
cutBackLevel = cutBackLevel + 1_pInt
time = time - timeinc ! rewind time
timeinc = timeinc/2.0_pReal
else ! default behavior, exit if spectral solver does not converge
call IO_warning(850_pInt)
call quit(-1_pInt*(lastRestartWritten+1_pInt)) ! quit and provide information about last restart inc written (e.g. for regridding) ! continue from non-converged solution and start guessing after accepted (sub)inc
endif
else
guess = .true. ! start guessing after first converged (sub)inc
timeIncOld = timeinc
endif
if (.not. cutBack) then
if (worldrank == 0) write(statUnit,*) totalIncsCounter, time, cutBackLevel, &
solres%converged, solres%iterationsNeeded ! write statistics about accepted solution
endif
enddo subIncLooping
cutBackLevel = max(0_pInt, cutBackLevel - 1_pInt) ! try half number of subincs next inc
if(all(solres(:)%converged)) then ! report converged inc
convergedCounter = convergedCounter + 1_pInt
if (worldrank == 0) then
write(6,'(/,a,'//IO_intOut(totalIncsCounter)//',a)') &
' increment ', totalIncsCounter, ' converged'
endif
else
if (worldrank == 0) then
write(6,'(/,a,'//IO_intOut(totalIncsCounter)//',a)') & ! report non-converged inc
' increment ', totalIncsCounter, ' NOT converged'
endif
notConvergedCounter = notConvergedCounter + 1_pInt
endif; flush(6)
if (mod(inc,loadCases(currentLoadCase)%outputFrequency) == 0_pInt) then ! at output frequency
if (worldrank == 0) then
write(6,'(1/,a)') ' ... writing results to file ......................................'
endif
endif
if( loadCases(currentLoadCase)%restartFrequency > 0_pInt .and. & ! at frequency of writing restart information set restart parameter for FEsolving
mod(inc,loadCases(currentLoadCase)%restartFrequency) == 0_pInt) then ! ToDo first call to CPFEM_general will write?
restartWrite = .true.
lastRestartWritten = inc
endif
else forwarding
time = time + timeinc
guess = .true.
endif forwarding
enddo incLooping
enddo loadCaseLooping
!--------------------------------------------------------------------------------------------------
! report summary of whole calculation
if (worldrank == 0) then
write(6,'(/,a)') ' ###########################################################################'
write(6,'(1x,i6.6,a,i6.6,a,f5.1,a)') convergedCounter, ' out of ', &
notConvergedCounter + convergedCounter, ' (', &
real(convergedCounter, pReal)/&
real(notConvergedCounter + convergedCounter,pReal)*100.0_pReal, &
' %) increments converged!'
endif
if (notConvergedCounter > 0_pInt) call quit(3_pInt) ! error if some are not converged
call quit(0_pInt) ! no complains ;)
end program DAMASK_FEM
!--------------------------------------------------------------------------------------------------
!> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH
!> @brief quit subroutine to mimic behavior of FEM solvers
!> @details exits the Spectral solver and reports time and duration. Exit code 0 signals
!> everything went fine. Exit code 1 signals an error, message according to IO_error. Exit code
!> 2 signals request for regridding, increment of last saved restart information is written to
!> stderr. Exit code 3 signals no severe problems, but some increments did not converge
!--------------------------------------------------------------------------------------------------
subroutine quit(stop_id)
use prec, only: &
pInt
implicit none
integer(pInt), intent(in) :: stop_id
integer, dimension(8) :: dateAndTime ! type default integer
call date_and_time(values = dateAndTime)
write(6,'(/,a)') 'DAMASK terminated on:'
write(6,'(a,2(i2.2,a),i4.4)') 'Date: ',dateAndTime(3),'/',&
dateAndTime(2),'/',&
dateAndTime(1)
write(6,'(a,2(i2.2,a),i2.2)') 'Time: ',dateAndTime(5),':',&
dateAndTime(6),':',&
dateAndTime(7)
if (stop_id == 0_pInt) stop 0 ! normal termination
if (stop_id < 0_pInt) then ! trigger regridding
write(0,'(a,i6)') 'restart information available at ', stop_id*(-1_pInt)
stop 2
endif
if (stop_id == 3_pInt) stop 3 ! not all incs converged
stop 1 ! error (message from IO_error)
end subroutine quit