!--------------------------------------------------------------------------------------------------
!> @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 various spectral solvers
!> @details doing cutbacking, forwarding in case of restart, reporting statistics, writing
!> results
!--------------------------------------------------------------------------------------------------
program DAMASK_spectral
#if defined(__GFORTRAN__) || __INTEL_COMPILER >= 1800
use, intrinsic :: iso_fortran_env, only: &
compiler_version, &
compiler_options
#endif
#include <petsc/finclude/petscsys.h>
use PETScsys
use prec, only: &
pInt, &
pLongInt, &
pReal, &
tol_math_check, &
dNeq
use DAMASK_interface, only: &
DAMASK_interface_init, &
loadCaseFile, &
geometryFile, &
getSolverJobName, &
interface_restartInc
use IO, only: &
IO_isBlank, &
IO_stringPos, &
IO_stringValue, &
IO_floatValue, &
IO_intValue, &
IO_error, &
IO_lc, &
IO_intOut, &
IO_warning, &
IO_timeStamp
use debug, only: &
debug_level, &
debug_spectral, &
debug_levelBasic
use math ! need to include the whole module for FFTW
use mesh, only: &
grid, &
geomSize
use CPFEM2, only: &
CPFEM_initAll
use FEsolving, only: &
restartWrite, &
restartInc
use numerics, only: &
worldrank, &
worldsize, &
stagItMax, &
maxCutBack, &
spectral_solver, &
continueCalculation
use homogenization, only: &
materialpoint_sizeResults, &
materialpoint_results, &
materialpoint_postResults
use material, only: &
thermal_type, &
damage_type, &
THERMAL_conduction_ID, &
DAMAGE_nonlocal_ID
use spectral_utilities, only: &
utilities_init, &
tSolutionState, &
tLoadCase, &
cutBack, &
nActiveFields, &
FIELD_UNDEFINED_ID, &
FIELD_MECH_ID, &
FIELD_THERMAL_ID, &
FIELD_DAMAGE_ID
use spectral_mech_Basic
use spectral_mech_Polarisation
use spectral_damage
use spectral_thermal
implicit none
!--------------------------------------------------------------------------------------------------
! variables related to information from load case and geom file
real(pReal), dimension(9) :: temp_valueVector = 0.0_pReal !< temporarily from loadcase file when reading in tensors (initialize to 0.0)
logical, dimension(9) :: temp_maskVector = .false. !< temporarily from loadcase file when reading in tensors
integer(pInt), allocatable, dimension(:) :: chunkPos
integer(pInt) :: &
N_t = 0_pInt, & !< # of time indicators found in load case file
N_n = 0_pInt, & !< # of increment specifiers found in load case file
N_def = 0_pInt !< # of rate of deformation specifiers found in load case file
character(len=65536) :: &
line
!--------------------------------------------------------------------------------------------------
! loop variables, convergence etc.
real(pReal), dimension(3,3), parameter :: &
ones = 1.0_pReal, &
zeros = 0.0_pReal
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 = 1.0_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
stagIterate
integer(pInt) :: &
i, j, k, l, field, &
errorID = 0_pInt, &
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
inc, & !< current increment in current load case
totalIncsCounter = 0_pInt, & !< total # of increments
convergedCounter = 0_pInt, & !< # of converged increments
notConvergedCounter = 0_pInt, & !< # of non-converged increments
fileUnit = 0_pInt, & !< file unit for reading load case and writing results
myStat, &
statUnit = 0_pInt, & !< file unit for statistics output
lastRestartWritten = 0_pInt, & !< total increment # at which last restart information was written
stagIter
character(len=6) :: loadcase_string
character(len=1024) :: &
incInfo
type(tLoadCase), allocatable, dimension(:) :: loadCases !< array of all load cases
type(tLoadCase) :: newLoadCase
type(tSolutionState), allocatable, dimension(:) :: solres
integer(MPI_OFFSET_KIND) :: fileOffset
integer(MPI_OFFSET_KIND), dimension(:), allocatable :: outputSize
integer(pInt), parameter :: maxByteOut = 2147483647-4096 !< limit of one file output write https://trac.mpich.org/projects/mpich/ticket/1742
integer(pInt), parameter :: maxRealOut = maxByteOut/pReal
integer(pLongInt), dimension(2) :: outputIndex
PetscErrorCode :: ierr
procedure(basic_init), pointer :: &
mech_init
procedure(basic_forward), pointer :: &
mech_forward
procedure(basic_solution), pointer :: &
mech_solution
external :: &
quit
!--------------------------------------------------------------------------------------------------
! init DAMASK (all modules)
call CPFEM_initAll
write(6,'(/,a)') ' <<<+- DAMASK_spectral init -+>>>'
write(6,'(/,a,/)') ' Roters et al., Computational Materials Science, 2018'
write(6,'(a15,a)') ' Current time: ',IO_timeStamp()
#include "compilation_info.f90"
!--------------------------------------------------------------------------------------------------
! initialize field solver information
nActiveFields = 1
if (any(thermal_type == THERMAL_conduction_ID )) nActiveFields = nActiveFields + 1
if (any(damage_type == DAMAGE_nonlocal_ID )) nActiveFields = nActiveFields + 1
allocate(solres(nActiveFields))
allocate(newLoadCase%ID(nActiveFields))
!--------------------------------------------------------------------------------------------------
! assign mechanics solver depending on selected type
select case (spectral_solver)
case (DAMASK_spectral_SolverBasic_label)
mech_init => basic_init
mech_forward => basic_forward
mech_solution => basic_solution
case (DAMASK_spectral_SolverPolarisation_label)
if(iand(debug_level(debug_spectral),debug_levelBasic)/= 0) &
call IO_warning(42_pInt, ext_msg='debug Divergence')
mech_init => polarisation_init
mech_forward => polarisation_forward
mech_solution => polarisation_solution
case default
call IO_error(error_ID = 891_pInt, ext_msg = trim(spectral_solver))
end select
!--------------------------------------------------------------------------------------------------
! reading information from load case file and to sanity checks
allocate (loadCases(0)) ! array of load cases
open(newunit=fileunit,iostat=myStat,file=trim(loadCaseFile),action='read')
if (myStat /= 0_pInt) call IO_error(100_pInt,el=myStat,ext_msg=trim(loadCaseFile))
do
read(fileUnit, '(A)', iostat=myStat) line
if ( myStat /= 0_pInt) exit
if (IO_isBlank(line)) cycle ! skip empty lines
currentLoadCase = currentLoadCase + 1_pInt
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('l','velocitygrad','velgrad','velocitygradient','fdot','dotf','f')
N_def = N_def + 1_pInt
case('t','time','delta')
N_t = N_t + 1_pInt
case('n','incs','increments','steps','logincs','logincrements','logsteps')
N_n = N_n + 1_pInt
end select
enddo
if ((N_def /= N_n) .or. (N_n /= N_t) .or. N_n < 1_pInt) & ! sanity check
call IO_error(error_ID=837_pInt,el=currentLoadCase,ext_msg = trim(loadCaseFile)) ! error message for incomplete loadcase
newLoadCase%stress%myType='stress'
field = 1
newLoadCase%ID(field) = FIELD_MECH_ID ! mechanical active by default
thermalActive: if (any(thermal_type == THERMAL_conduction_ID)) then
field = field + 1
newLoadCase%ID(field) = FIELD_THERMAL_ID
endif thermalActive
damageActive: if (any(damage_type == DAMAGE_nonlocal_ID)) then
field = field + 1
newLoadCase%ID(field) = FIELD_DAMAGE_ID
endif damageActive
readIn: do i = 1_pInt, chunkPos(1)
select case (IO_lc(IO_stringValue(line,chunkPos,i)))
case('fdot','dotf','l','velocitygrad','velgrad','velocitygradient','f') ! assign values for the deformation BC matrix
temp_valueVector = 0.0_pReal
if (IO_lc(IO_stringValue(line,chunkPos,i)) == 'fdot'.or. & ! in case of Fdot, set type to fdot
IO_lc(IO_stringValue(line,chunkPos,i)) == 'dotf') then
newLoadCase%deformation%myType = 'fdot'
else if (IO_lc(IO_stringValue(line,chunkPos,i)) == 'f') then
newLoadCase%deformation%myType = 'f'
else
newLoadCase%deformation%myType = 'l'
endif
do j = 1_pInt, 9_pInt
temp_maskVector(j) = IO_stringValue(line,chunkPos,i+j) /= '*' ! true if not a *
if (temp_maskVector(j)) temp_valueVector(j) = IO_floatValue(line,chunkPos,i+j) ! read value where applicable
enddo
newLoadCase%deformation%maskLogical = transpose(reshape(temp_maskVector,[ 3,3])) ! logical mask in 3x3 notation
newLoadCase%deformation%maskFloat = merge(ones,zeros,newLoadCase%deformation%maskLogical)! float (1.0/0.0) mask in 3x3 notation
newLoadCase%deformation%values = math_plain9to33(temp_valueVector) ! values in 3x3 notation
case('p','pk1','piolakirchhoff','stress', 's')
temp_valueVector = 0.0_pReal
do j = 1_pInt, 9_pInt
temp_maskVector(j) = IO_stringValue(line,chunkPos,i+j) /= '*' ! true if not an asterisk
if (temp_maskVector(j)) temp_valueVector(j) = IO_floatValue(line,chunkPos,i+j) ! read value where applicable
enddo
newLoadCase%stress%maskLogical = transpose(reshape(temp_maskVector,[ 3,3]))
newLoadCase%stress%maskFloat = merge(ones,zeros,newLoadCase%stress%maskLogical)
newLoadCase%stress%values = math_plain9to33(temp_valueVector)
case('t','time','delta') ! increment time
newLoadCase%time = IO_floatValue(line,chunkPos,i+1_pInt)
case('n','incs','increments','steps') ! number of increments
newLoadCase%incs = IO_intValue(line,chunkPos,i+1_pInt)
case('logincs','logincrements','logsteps') ! number of increments (switch to log time scaling)
newLoadCase%incs = IO_intValue(line,chunkPos,i+1_pInt)
newLoadCase%logscale = 1_pInt
case('freq','frequency','outputfreq') ! frequency of result writings
newLoadCase%outputfrequency = IO_intValue(line,chunkPos,i+1_pInt)
case('r','restart','restartwrite') ! frequency of writing restart information
newLoadCase%restartfrequency = &
max(0_pInt,IO_intValue(line,chunkPos,i+1_pInt))
case('guessreset','dropguessing')
newLoadCase%followFormerTrajectory = .false. ! do not continue to predict deformation along former trajectory
case('euler') ! rotation of load case given in euler angles
temp_valueVector = 0.0_pReal
l = 1_pInt ! assuming values given in degrees
k = 1_pInt ! assuming keyword indicating degree/radians present
select case (IO_lc(IO_stringValue(line,chunkPos,i+1_pInt)))
case('deg','degree')
case('rad','radian') ! don't convert from degree to radian
l = 0_pInt
case default
k = 0_pInt
end select
do j = 1_pInt, 3_pInt
temp_valueVector(j) = IO_floatValue(line,chunkPos,i+k+j)
enddo
if (l == 1_pInt) temp_valueVector(1:3) = temp_valueVector(1:3) * inRad ! convert to rad
newLoadCase%rotation = math_EulerToR(temp_valueVector(1:3)) ! convert rad Eulers to rotation matrix
case('rotation','rot') ! assign values for the rotation matrix
temp_valueVector = 0.0_pReal
do j = 1_pInt, 9_pInt
temp_valueVector(j) = IO_floatValue(line,chunkPos,i+j)
enddo
newLoadCase%rotation = math_plain9to33(temp_valueVector)
end select
enddo readIn
newLoadCase%followFormerTrajectory = merge(.true.,.false.,currentLoadCase > 1_pInt) ! by default, guess from previous load case
reportAndCheck: if (worldrank == 0) then
write (loadcase_string, '(i6)' ) currentLoadCase
write(6,'(1x,a,i6)') 'load case: ', currentLoadCase
if (.not. newLoadCase%followFormerTrajectory) write(6,'(2x,a)') 'drop guessing along trajectory'
if (newLoadCase%deformation%myType == 'l') then
do j = 1_pInt, 3_pInt
if (any(newLoadCase%deformation%maskLogical(j,1:3) .eqv. .true.) .and. &
any(newLoadCase%deformation%maskLogical(j,1:3) .eqv. .false.)) errorID = 832_pInt ! each row should be either fully or not at all defined
enddo
write(6,'(2x,a)') 'velocity gradient:'
else if (newLoadCase%deformation%myType == 'f') then
write(6,'(2x,a)') 'deformation gradient at end of load case:'
else
write(6,'(2x,a)') 'deformation gradient rate:'
endif
do i = 1_pInt, 3_pInt; do j = 1_pInt, 3_pInt
if(newLoadCase%deformation%maskLogical(i,j)) then
write(6,'(2x,f12.7)',advance='no') newLoadCase%deformation%values(i,j)
else
write(6,'(2x,12a)',advance='no') ' * '
endif
enddo; write(6,'(/)',advance='no')
enddo
if (any(newLoadCase%stress%maskLogical .eqv. &
newLoadCase%deformation%maskLogical)) errorID = 831_pInt ! exclusive or masking only
if (any(newLoadCase%stress%maskLogical .and. &
transpose(newLoadCase%stress%maskLogical) .and. &
reshape([ .false.,.true.,.true.,.true.,.false.,.true.,.true.,.true.,.false.],[ 3,3]))) &
errorID = 838_pInt ! no rotation is allowed by stress BC
write(6,'(2x,a)') 'stress / GPa:'
do i = 1_pInt, 3_pInt; do j = 1_pInt, 3_pInt
if(newLoadCase%stress%maskLogical(i,j)) then
write(6,'(2x,f12.7)',advance='no') newLoadCase%stress%values(i,j)*1e-9_pReal
else
write(6,'(2x,12a)',advance='no') ' * '
endif
enddo; write(6,'(/)',advance='no')
enddo
if (any(abs(math_mul33x33(newLoadCase%rotation, &
transpose(newLoadCase%rotation))-math_I3) > &
reshape(spread(tol_math_check,1,9),[ 3,3]))&
.or. abs(math_det33(newLoadCase%rotation)) > &
1.0_pReal + tol_math_check) errorID = 846_pInt ! given rotation matrix contains strain
if (any(dNeq(newLoadCase%rotation, math_I3))) &
write(6,'(2x,a,/,3(3(3x,f12.7,1x)/))',advance='no') 'rotation of loadframe:',&
transpose(newLoadCase%rotation)
if (newLoadCase%time < 0.0_pReal) errorID = 834_pInt ! negative time increment
write(6,'(2x,a,f12.6)') 'time: ', newLoadCase%time
if (newLoadCase%incs < 1_pInt) errorID = 835_pInt ! non-positive incs count
write(6,'(2x,a,i5)') 'increments: ', newLoadCase%incs
if (newLoadCase%outputfrequency < 1_pInt) errorID = 836_pInt ! non-positive result frequency
write(6,'(2x,a,i5)') 'output frequency: ', newLoadCase%outputfrequency
write(6,'(2x,a,i5,/)') 'restart frequency: ', newLoadCase%restartfrequency
if (errorID > 0_pInt) call IO_error(error_ID = errorID, ext_msg = loadcase_string) ! exit with error message
endif reportAndCheck
loadCases = [loadCases,newLoadCase] ! load case is ok, append it
enddo
close(fileUnit)
!--------------------------------------------------------------------------------------------------
! doing initialization depending on active solvers
call Utilities_init()
do field = 1, nActiveFields
select case (loadCases(1)%ID(field))
case(FIELD_MECH_ID)
call mech_init
case(FIELD_THERMAL_ID)
call spectral_thermal_init
case(FIELD_DAMAGE_ID)
call spectral_damage_init
end select
enddo
!--------------------------------------------------------------------------------------------------
! write header of output file
if (worldrank == 0) then
writeHeader: if (interface_restartInc < 1_pInt) then
open(newunit=fileUnit,file=trim(getSolverJobName())//&
'.spectralOut',form='UNFORMATTED',status='REPLACE')
write(fileUnit) 'load:', trim(loadCaseFile) ! ... and write header
write(fileUnit) 'workingdir:', 'n/a'
write(fileUnit) 'geometry:', trim(geometryFile)
write(fileUnit) 'grid:', grid
write(fileUnit) 'size:', geomSize
write(fileUnit) 'materialpoint_sizeResults:', materialpoint_sizeResults
write(fileUnit) 'loadcases:', size(loadCases)
write(fileUnit) 'frequencies:', loadCases%outputfrequency ! one entry per LoadCase
write(fileUnit) 'times:', loadCases%time ! one entry per LoadCase
write(fileUnit) 'logscales:', loadCases%logscale
write(fileUnit) 'increments:', loadCases%incs ! one entry per LoadCase
write(fileUnit) 'startingIncrement:', restartInc ! start with writing out the previous inc
write(fileUnit) 'eoh'
close(fileUnit) ! end of header
open(newunit=statUnit,file=trim(getSolverJobName())//&
'.sta',form='FORMATTED',status='REPLACE')
write(statUnit,'(a)') 'Increment Time CutbackLevel Converged IterationsNeeded' ! statistics file
if (iand(debug_level(debug_spectral),debug_levelBasic) /= 0) &
write(6,'(/,a)') ' header of result and statistics file written out'
flush(6)
else writeHeader
open(newunit=statUnit,file=trim(getSolverJobName())//&
'.sta',form='FORMATTED', position='APPEND', status='OLD')
endif writeHeader
endif
!--------------------------------------------------------------------------------------------------
! prepare MPI parallel out (including opening of file)
allocate(outputSize(worldsize), source = 0_MPI_OFFSET_KIND)
outputSize(worldrank+1) = size(materialpoint_results,kind=MPI_OFFSET_KIND)*int(pReal,MPI_OFFSET_KIND)
call MPI_allreduce(MPI_IN_PLACE,outputSize,worldsize,MPI_LONG,MPI_SUM,PETSC_COMM_WORLD,ierr) ! get total output size over each process
if (ierr /= 0_pInt) call IO_error(error_ID=894_pInt, ext_msg='MPI_allreduce')
call MPI_file_open(PETSC_COMM_WORLD, trim(getSolverJobName())//'.spectralOut', &
MPI_MODE_WRONLY + MPI_MODE_APPEND, &
MPI_INFO_NULL, &
fileUnit, &
ierr)
if (ierr /= 0_pInt) call IO_error(error_ID=894_pInt, ext_msg='MPI_file_open')
call MPI_file_get_position(fileUnit,fileOffset,ierr) ! get offset from header
if (ierr /= 0_pInt) call IO_error(error_ID=894_pInt, ext_msg='MPI_file_get_position')
fileOffset = fileOffset + sum(outputSize(1:worldrank)) ! offset of my process in file (header + processes before me)
call MPI_file_seek (fileUnit,fileOffset,MPI_SEEK_SET,ierr)
if (ierr /= 0_pInt) call IO_error(error_ID=894_pInt, ext_msg='MPI_file_seek')
writeUndeformed: if (interface_restartInc < 1_pInt) then
write(6,'(1/,a)') ' ... writing initial configuration to file ........................'
do i = 1, size(materialpoint_results,3)/(maxByteOut/(materialpoint_sizeResults*pReal))+1 ! slice the output of my process in chunks not exceeding the limit for one output
outputIndex = int([(i-1_pInt)*((maxRealOut)/materialpoint_sizeResults)+1_pInt, & ! QUESTION: why not starting i at 0 instead of murky 1?
min(i*((maxRealOut)/materialpoint_sizeResults),size(materialpoint_results,3))],pLongInt)
call MPI_file_write(fileUnit,reshape(materialpoint_results(:,:,outputIndex(1):outputIndex(2)), &
[(outputIndex(2)-outputIndex(1)+1)*int(materialpoint_sizeResults,pLongInt)]), &
int((outputIndex(2)-outputIndex(1)+1)*int(materialpoint_sizeResults,pLongInt)), &
MPI_DOUBLE, MPI_STATUS_IGNORE, ierr)
if (ierr /= 0_pInt) call IO_error(error_ID=894_pInt, ext_msg='MPI_file_write')
enddo
fileOffset = fileOffset + sum(outputSize) ! forward to current file position
endif writeUndeformed
loadCaseLooping: do currentLoadCase = 1_pInt, size(loadCases)
time0 = time ! load case start time
guess = loadCases(currentLoadCase)%followFormerTrajectory ! change of load case? homogeneous guess for the first inc
incLooping: do inc = 1_pInt, loadCases(currentLoadCase)%incs
totalIncsCounter = totalIncsCounter + 1_pInt
!--------------------------------------------------------------------------------------------------
! forwarding time
timeIncOld = timeinc ! last timeinc that brought former inc to an end
if (loadCases(currentLoadCase)%logscale == 0_pInt) then ! linear scale
timeinc = loadCases(currentLoadCase)%time/real(loadCases(currentLoadCase)%incs,pReal)
else
if (currentLoadCase == 1_pInt) then ! 1st load case of logarithmic scale
if (inc == 1_pInt) then ! 1st inc of 1st load case 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 load case of logarithmic scale
timeinc = loadCases(1)%time*(2.0_pReal**real(inc-1_pInt-loadCases(1)%incs ,pReal))
endif
else ! not-1st load case 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 * real(subStepFactor,pReal)**real(-cutBackLevel,pReal) ! depending on cut back level, decrease time step
skipping: if (totalIncsCounter <= restartInc) then ! not yet at restart inc?
time = time + timeinc ! just advance time, skip already performed calculation
guess = .true. ! QUESTION:why forced guessing instead of inheriting loadcase preference
else skipping
stepFraction = 0_pInt ! fraction scaled by stepFactor**cutLevel
subStepLooping: do while (stepFraction < subStepFactor**cutBackLevel)
remainingLoadCaseTime = loadCases(currentLoadCase)%time+time0 - time
time = time + timeinc ! forward target time
stepFraction = stepFraction + 1_pInt ! count step
!--------------------------------------------------------------------------------------------------
! report begin of new step
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)
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
flush(6)
!--------------------------------------------------------------------------------------------------
! forward fields
do field = 1, nActiveFields
select case(loadCases(currentLoadCase)%ID(field))
case(FIELD_MECH_ID)
call mech_forward (&
guess,timeinc,timeIncOld,remainingLoadCaseTime, &
deformation_BC = loadCases(currentLoadCase)%deformation, &
stress_BC = loadCases(currentLoadCase)%stress, &
rotation_BC = loadCases(currentLoadCase)%rotation)
case(FIELD_THERMAL_ID); call spectral_thermal_forward()
case(FIELD_DAMAGE_ID); call spectral_damage_forward()
end select
enddo
!--------------------------------------------------------------------------------------------------
! solve fields
stagIter = 0_pInt
stagIterate = .true.
do while (stagIterate)
do field = 1, nActiveFields
select case(loadCases(currentLoadCase)%ID(field))
case(FIELD_MECH_ID)
solres(field) = mech_solution (&
incInfo,timeinc,timeIncOld, &
stress_BC = loadCases(currentLoadCase)%stress, &
rotation_BC = loadCases(currentLoadCase)%rotation)
case(FIELD_THERMAL_ID)
solres(field) = spectral_thermal_solution(timeinc,timeIncOld,remainingLoadCaseTime)
case(FIELD_DAMAGE_ID)
solres(field) = spectral_damage_solution(timeinc,timeIncOld,remainingLoadCaseTime)
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) ! stationary with respect to staggered iteration
enddo
!--------------------------------------------------------------------------------------------------
! check solution for either advance or retry
if ( (continueCalculation .or. all(solres(:)%converged .and. solres(:)%stagConverged)) & ! don't care or did converge
.and. .not. solres(1)%termIll) then ! and acceptable solution found
timeIncOld = timeinc
cutBack = .false.
guess = .true. ! start guessing after first converged (sub)inc
if (worldrank == 0) then
write(statUnit,*) totalIncsCounter, time, cutBackLevel, &
solres%converged, solres%iterationsNeeded
flush(statUnit)
endif
elseif (cutBackLevel < maxCutBack) then ! further cutbacking tolerated?
cutBack = .true.
stepFraction = (stepFraction - 1_pInt) * subStepFactor ! adjust to new denominator
cutBackLevel = cutBackLevel + 1_pInt
time = time - timeinc ! rewind time
timeinc = timeinc/real(subStepFactor,pReal) ! cut timestep
write(6,'(/,a)') ' cutting back '
else ! no more options to continue
call IO_warning(850_pInt)
call MPI_file_close(fileUnit,ierr)
close(statUnit)
call quit(-1_pInt*(lastRestartWritten+1_pInt)) ! quit and provide information about last restart inc written
endif
enddo subStepLooping
cutBackLevel = max(0_pInt, cutBackLevel - 1_pInt) ! try half number of subincs next inc
if (all(solres(:)%converged)) then
convergedCounter = convergedCounter + 1_pInt
write(6,'(/,a,'//IO_intOut(totalIncsCounter)//',a)') & ! report converged inc
' increment ', totalIncsCounter, ' converged'
else
notConvergedCounter = notConvergedCounter + 1_pInt
write(6,'(/,a,'//IO_intOut(totalIncsCounter)//',a)') & ! report non-converged inc
' increment ', totalIncsCounter, ' NOT converged'
endif; flush(6)
if (mod(inc,loadCases(currentLoadCase)%outputFrequency) == 0_pInt) then ! at output frequency
write(6,'(1/,a)') ' ... writing results to file ......................................'
flush(6)
call materialpoint_postResults()
call MPI_file_seek (fileUnit,fileOffset,MPI_SEEK_SET,ierr)
if (ierr /= 0_pInt) call IO_error(894_pInt, ext_msg='MPI_file_seek')
do i=1, size(materialpoint_results,3)/(maxByteOut/(materialpoint_sizeResults*pReal))+1 ! slice the output of my process in chunks not exceeding the limit for one output
outputIndex=int([(i-1_pInt)*((maxRealOut)/materialpoint_sizeResults)+1_pInt, &
min(i*((maxRealOut)/materialpoint_sizeResults),size(materialpoint_results,3))],pLongInt)
call MPI_file_write(fileUnit,reshape(materialpoint_results(:,:,outputIndex(1):outputIndex(2)),&
[(outputIndex(2)-outputIndex(1)+1)*int(materialpoint_sizeResults,pLongInt)]), &
int((outputIndex(2)-outputIndex(1)+1)*int(materialpoint_sizeResults,pLongInt)),&
MPI_DOUBLE, MPI_STATUS_IGNORE, ierr)
if(ierr /=0_pInt) call IO_error(894_pInt, ext_msg='MPI_file_write')
enddo
fileOffset = fileOffset + sum(outputSize) ! forward to current file position
endif
if ( loadCases(currentLoadCase)%restartFrequency > 0_pInt & ! writing of restart info requested ...
.and. mod(inc,loadCases(currentLoadCase)%restartFrequency) == 0_pInt) then ! ... and at frequency of writing restart information
restartWrite = .true. ! set restart parameter for FEsolving
lastRestartWritten = inc ! QUESTION: first call to CPFEM_general will write?
endif
endif skipping
enddo incLooping
enddo loadCaseLooping
!--------------------------------------------------------------------------------------------------
! report summary of whole calculation
write(6,'(/,a)') ' ###########################################################################'
write(6,'(1x,'//IO_intOut(convergedCounter)//',a,'//IO_intOut(notConvergedCounter + convergedCounter)//',a,f5.1,a)') &
convergedCounter, ' out of ', &
notConvergedCounter + convergedCounter, ' (', &
real(convergedCounter, pReal)/&
real(notConvergedCounter + convergedCounter,pReal)*100.0_pReal, ' %) increments converged!'
flush(6)
call MPI_file_close(fileUnit,ierr)
close(statUnit)
if (notConvergedCounter > 0_pInt) call quit(2_pInt) ! error if some are not converged
call quit(0_pInt) ! no complains ;)
end program DAMASK_spectral