DAMASK_EICMD/src/IO.f90

790 lines
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!--------------------------------------------------------------------------------------------------
!> @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
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!> @brief input/output functions
!--------------------------------------------------------------------------------------------------
module IO
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use prec
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implicit none
private
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character(len=*), parameter, public :: &
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IO_WHITESPACE = achar(44)//achar(32)//achar(9)//achar(10)//achar(13) !< whitespace characters
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character, parameter, public :: &
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IO_EOL = new_line('DAMASK'), & !< end of line character
IO_COMMENT = '#'
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character(len=*), parameter, private :: &
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IO_DIVIDER = '───────────────────'//&
'───────────────────'//&
'───────────────────'//&
'────────────'
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! Obsolete alias
interface IO_read_ASCII
module procedure IO_readlines
end interface IO_read_ASCII
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public :: &
IO_init, &
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IO_read, &
IO_readlines, &
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IO_read_ASCII, &
IO_open_binary, &
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IO_isBlank, &
IO_getTag, &
IO_stringPos, &
IO_stringValue, &
IO_intValue, &
IO_floatValue, &
IO_lc, &
IO_rmComment, &
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IO_stringAsInt, &
IO_stringAsFloat, &
IO_stringAsBool, &
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IO_error, &
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IO_warning
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contains
!--------------------------------------------------------------------------------------------------
!> @brief does nothing.
!--------------------------------------------------------------------------------------------------
subroutine IO_init
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write(6,'(/,a)') ' <<<+- IO init -+>>>'; flush(6)
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call selfTest
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end subroutine IO_init
!--------------------------------------------------------------------------------------------------
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!> @brief read ASCII file and split at EOL
!--------------------------------------------------------------------------------------------------
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function IO_readlines(fileName) result(fileContent)
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character(len=*), intent(in) :: fileName
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character(len=pStringLen), dimension(:), allocatable :: fileContent !< file content, separated per lines
character(len=pStringLen) :: line
character(len=:), allocatable :: rawData
integer :: &
startPos, endPos, &
N_lines, & !< # lines in file
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l
logical :: warned
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rawData = IO_read(fileName)
!--------------------------------------------------------------------------------------------------
! count lines to allocate string array
N_lines = 0
do l=1, len(rawData)
if (rawData(l:l) == IO_EOL) N_lines = N_lines+1
enddo
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allocate(fileContent(N_lines))
!--------------------------------------------------------------------------------------------------
! split raw data at end of line
warned = .false.
startPos = 1
l = 1
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do while (l <= N_lines)
endPos = startPos + scan(rawData(startPos:),IO_EOL) - 2
if (endPos - startPos > pStringLen-1) then
line = rawData(startPos:startPos+pStringLen-1)
if (.not. warned) then
call IO_warning(207,ext_msg=trim(fileName),el=l)
warned = .true.
endif
else
line = rawData(startPos:endpos)
endif
startPos = endPos + 2 ! jump to next line start
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fileContent(l) = trim(line)//''
l = l + 1
enddo
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end function IO_readlines
!--------------------------------------------------------------------------------------------------
!> @brief read ASCII file into a string
!> @details ensures that the string ends with a new line (expected UNIX behavior)
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!--------------------------------------------------------------------------------------------------
function IO_read(fileName) result(fileContent)
character(len=*), intent(in) :: fileName
character(len=:), allocatable :: fileContent
integer :: &
fileLength, &
fileUnit, &
myStat
inquire(file = fileName, size=fileLength)
open(newunit=fileUnit, file=fileName, access='stream',&
status='old', position='rewind', action='read',iostat=myStat)
if(myStat /= 0) call IO_error(100,ext_msg=trim(fileName))
allocate(character(len=fileLength)::fileContent)
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if(fileLength==0) then
close(fileUnit)
return
endif
read(fileUnit,iostat=myStat) fileContent
if(myStat /= 0) call IO_error(102,ext_msg=trim(fileName))
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close(fileUnit)
if(fileContent(fileLength:fileLength) /= IO_EOL) fileContent = fileContent//IO_EOL ! ensure EOL@EOF
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end function IO_read
!--------------------------------------------------------------------------------------------------
!> @brief opens an existing file for reading or a new file for writing.
!> @details replaces an existing file when writing
!--------------------------------------------------------------------------------------------------
integer function IO_open_binary(fileName,mode)
character(len=*), intent(in) :: fileName
character, intent(in), optional :: mode
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character :: m
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integer :: ierr
if (present(mode)) then
m = mode
else
m = 'r'
endif
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if (m == 'w') then
open(newunit=IO_open_binary, file=trim(fileName),&
status='replace',access='stream',action='write',iostat=ierr)
if (ierr /= 0) call IO_error(100,ext_msg='could not open file (w): '//trim(fileName))
elseif(m == 'r') then
open(newunit=IO_open_binary, file=trim(fileName),&
status='old', access='stream',action='read', iostat=ierr)
if (ierr /= 0) call IO_error(100,ext_msg='could not open file (r): '//trim(fileName))
else
call IO_error(100,ext_msg='unknown access mode: '//m)
endif
end function IO_open_binary
!--------------------------------------------------------------------------------------------------
!> @brief identifies strings without content
!--------------------------------------------------------------------------------------------------
logical pure function IO_isBlank(string)
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character(len=*), intent(in) :: string !< string to check for content
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integer :: posNonBlank
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posNonBlank = verify(string,IO_WHITESPACE)
IO_isBlank = posNonBlank == 0 .or. posNonBlank == scan(string,IO_COMMENT)
end function IO_isBlank
!--------------------------------------------------------------------------------------------------
!> @brief get tagged content of string
!--------------------------------------------------------------------------------------------------
pure function IO_getTag(string,openChar,closeChar)
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character(len=*), intent(in) :: string !< string to check for tag
character, intent(in) :: openChar, & !< indicates beginning of tag
closeChar !< indicates end of tag
character(len=:), allocatable :: IO_getTag
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integer :: left,right
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left = scan(string,openChar)
right = merge(scan(string,closeChar), &
left + merge(scan(string(left+1:),openChar),0,len(string) > left), &
openChar /= closeChar)
foundTag: if (left == verify(string,IO_WHITESPACE) .and. right > left) then
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IO_getTag = string(left+1:right-1)
else foundTag
IO_getTag = ''
endif foundTag
end function IO_getTag
!--------------------------------------------------------------------------------------------------
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!> @brief locates all whitespace-separated chunks in given string and returns array containing
!! number them and the left/right position to be used by IO_xxxVal
!! Array size is dynamically adjusted to number of chunks found in string
!! IMPORTANT: first element contains number of chunks!
!--------------------------------------------------------------------------------------------------
pure function IO_stringPos(string)
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character(len=*), intent(in) :: string !< string in which chunk positions are searched for
integer, dimension(:), allocatable :: IO_stringPos
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integer :: left, right
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allocate(IO_stringPos(1), source=0)
right = 0
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do while (verify(string(right+1:),IO_WHITESPACE)>0)
left = right + verify(string(right+1:),IO_WHITESPACE)
right = left + scan(string(left:),IO_WHITESPACE) - 2
if ( string(left:left) == IO_COMMENT) exit
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IO_stringPos = [IO_stringPos,left,right]
IO_stringPos(1) = IO_stringPos(1)+1
endOfString: if (right < left) then
IO_stringPos(IO_stringPos(1)*2+1) = len_trim(string)
exit
endif endOfString
enddo
end function IO_stringPos
!--------------------------------------------------------------------------------------------------
!> @brief reads string value at myChunk from string
!--------------------------------------------------------------------------------------------------
function IO_stringValue(string,chunkPos,myChunk)
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character(len=*), intent(in) :: string !< raw input with known start and end of each chunk
integer, dimension(:), intent(in) :: chunkPos !< positions of start and end of each tag/chunk in given string
integer, intent(in) :: myChunk !< position number of desired chunk
character(len=:), allocatable :: IO_stringValue
validChunk: if (myChunk > chunkPos(1) .or. myChunk < 1) then
IO_stringValue = ''
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call IO_error(110,el=myChunk,ext_msg='IO_stringValue: "'//trim(string)//'"')
else validChunk
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IO_stringValue = string(chunkPos(myChunk*2):chunkPos(myChunk*2+1))
endif validChunk
end function IO_stringValue
!--------------------------------------------------------------------------------------------------
!> @brief reads integer value at myChunk from string
!--------------------------------------------------------------------------------------------------
integer function IO_intValue(string,chunkPos,myChunk)
character(len=*), intent(in) :: string !< raw input with known start and end of each chunk
integer, dimension(:), intent(in) :: chunkPos !< positions of start and end of each tag/chunk in given string
integer, intent(in) :: myChunk !< position number of desired chunk
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IO_intValue = IO_stringAsInt(IO_stringValue(string,chunkPos,myChunk))
end function IO_intValue
!--------------------------------------------------------------------------------------------------
!> @brief reads float value at myChunk from string
!--------------------------------------------------------------------------------------------------
real(pReal) function IO_floatValue(string,chunkPos,myChunk)
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character(len=*), intent(in) :: string !< raw input with known start and end of each chunk
integer, dimension(:), intent(in) :: chunkPos !< positions of start and end of each tag/chunk in given string
integer, intent(in) :: myChunk !< position number of desired chunk
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IO_floatValue = IO_stringAsFloat(IO_stringValue(string,chunkPos,myChunk))
end function IO_floatValue
!--------------------------------------------------------------------------------------------------
!> @brief changes characters in string to lower case
!--------------------------------------------------------------------------------------------------
pure function IO_lc(string)
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character(len=*), intent(in) :: string !< string to convert
character(len=len(string)) :: IO_lc
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character(len=*), parameter :: LOWER = 'abcdefghijklmnopqrstuvwxyz'
character(len=len(LOWER)), parameter :: UPPER = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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integer :: i,n
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do i=1,len(string)
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n = index(UPPER,string(i:i))
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if(n/=0) then
IO_lc(i:i) = LOWER(n:n)
else
IO_lc(i:i) = string(i:i)
endif
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enddo
end function IO_lc
!--------------------------------------------------------------------------------------------------
! @brief Remove comments (characters beyond '#') and trailing space
! ToDo: Discuss name (the trim aspect is not clear)
!--------------------------------------------------------------------------------------------------
function IO_rmComment(line)
character(len=*), intent(in) :: line
character(len=:), allocatable :: IO_rmComment
integer :: split
split = index(line,IO_COMMENT)
if (split == 0) then
IO_rmComment = trim(line)
else
IO_rmComment = trim(line(:split-1))
endif
end function IO_rmComment
!--------------------------------------------------------------------------------------------------
!> @brief return verified integer value in given string
!--------------------------------------------------------------------------------------------------
integer function IO_stringAsInt(string)
character(len=*), intent(in) :: string !< string for conversion to int value
integer :: readStatus
character(len=*), parameter :: VALIDCHARS = '0123456789+- '
valid: if (verify(string,VALIDCHARS) == 0) then
read(string,*,iostat=readStatus) IO_stringAsInt
if (readStatus /= 0) call IO_error(111,ext_msg=string)
else valid
IO_stringAsInt = 0
call IO_error(111,ext_msg=string)
endif valid
end function IO_stringAsInt
!--------------------------------------------------------------------------------------------------
!> @brief return verified float value in given string
!--------------------------------------------------------------------------------------------------
real(pReal) function IO_stringAsFloat(string)
character(len=*), intent(in) :: string !< string for conversion to float value
integer :: readStatus
character(len=*), parameter :: VALIDCHARS = '0123456789eE.+- '
valid: if (verify(string,VALIDCHARS) == 0) then
read(string,*,iostat=readStatus) IO_stringAsFloat
if (readStatus /= 0) call IO_error(112,ext_msg=string)
else valid
IO_stringAsFloat = 0.0_pReal
call IO_error(112,ext_msg=string)
endif valid
end function IO_stringAsFloat
!--------------------------------------------------------------------------------------------------
!> @brief return verified logical value in given string
!--------------------------------------------------------------------------------------------------
logical function IO_stringAsBool(string)
character(len=*), intent(in) :: string !< string for conversion to int value
if (trim(adjustl(string)) == 'True') then
IO_stringAsBool = .true.
elseif (trim(adjustl(string)) == 'False') then
IO_stringAsBool = .false.
else
IO_stringAsBool = .false.
call IO_error(113,ext_msg=string)
endif
end function IO_stringAsBool
!--------------------------------------------------------------------------------------------------
!> @brief write error statements to standard out and terminate the Marc/spectral run with exit #9xxx
!--------------------------------------------------------------------------------------------------
subroutine IO_error(error_ID,el,ip,g,instance,ext_msg)
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integer, intent(in) :: error_ID
integer, optional, intent(in) :: el,ip,g,instance
character(len=*), optional, intent(in) :: ext_msg
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external :: quit
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character(len=pStringLen) :: msg
character(len=pStringLen) :: formatString
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select case (error_ID)
!--------------------------------------------------------------------------------------------------
! internal errors
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case (0)
msg = 'internal check failed:'
!--------------------------------------------------------------------------------------------------
! file handling errors
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case (100)
msg = 'could not open file:'
case (101)
msg = 'write error for file:'
case (102)
msg = 'could not read file:'
case (103)
msg = 'could not assemble input files'
case (106)
msg = 'working directory does not exist:'
!--------------------------------------------------------------------------------------------------
! file parsing errors
case (110)
msg = 'invalid chunk selected'
case (111)
msg = 'invalid character for int:'
case (112)
msg = 'invalid character for float:'
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case (113)
msg = 'invalid character for logical:'
!--------------------------------------------------------------------------------------------------
! lattice error messages
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case (130)
msg = 'unknown lattice structure encountered'
case (131)
msg = 'hex lattice structure with invalid c/a ratio'
case (132)
msg = 'trans_lattice_structure not possible'
case (133)
msg = 'transformed hex lattice structure with invalid c/a ratio'
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case (134)
msg = 'negative lattice parameter'
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case (135)
msg = 'zero entry on stiffness diagonal'
case (136)
msg = 'zero entry on stiffness diagonal for transformed phase'
case (137)
msg = 'not defined for lattice structure'
case (138)
msg = 'not enough interaction parameters given'
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!--------------------------------------------------------------------------------------------------
! errors related to the parsing of material.config
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case (140)
msg = 'key not found'
case (141)
msg = 'number of chunks in string differs'
case (142)
msg = 'empty list'
case (143)
msg = 'no value found for key'
case (144)
msg = 'negative number systems requested'
case (145)
msg = 'too many systems requested'
case (146)
msg = 'number of values does not match'
case (147)
msg = 'not supported anymore'
case (148)
msg = 'Nconstituents mismatch between homogenization and microstructure'
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!--------------------------------------------------------------------------------------------------
! material error messages and related messages in mesh
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case (150)
msg = 'index out of bounds'
case (151)
msg = 'microstructure has no constituents'
case (153)
msg = 'sum of phase fractions differs from 1'
case (154)
msg = 'homogenization index out of bounds'
case (155)
msg = 'microstructure index out of bounds'
case (157)
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msg = 'invalid texture transformation specified'
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case (160)
msg = 'no entries in config part'
case (161)
msg = 'config part found twice'
case (165)
msg = 'homogenization configuration'
case (170)
msg = 'no homogenization specified via State Variable 2'
case (180)
msg = 'no microstructure specified via State Variable 3'
case (190)
msg = 'unknown element type:'
case (191)
msg = 'mesh consists of more than one element type'
!--------------------------------------------------------------------------------------------------
! plasticity error messages
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case (200)
msg = 'unknown elasticity specified:'
case (201)
msg = 'unknown plasticity specified:'
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case (210)
msg = 'unknown material parameter:'
case (211)
msg = 'material parameter out of bounds:'
!--------------------------------------------------------------------------------------------------
! numerics error messages
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case (300)
msg = 'unknown numerics parameter:'
case (301)
msg = 'numerics parameter out of bounds:'
!--------------------------------------------------------------------------------------------------
! math errors
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case (400)
msg = 'matrix inversion error'
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case (401)
msg = 'error in Eigenvalue calculation'
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case (402)
msg = 'invalid orientation specified'
!-------------------------------------------------------------------------------------------------
! homogenization errors
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case (500)
msg = 'unknown homogenization specified'
!--------------------------------------------------------------------------------------------------
! user errors
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case (600)
msg = 'Ping-Pong not possible when using non-DAMASK elements'
case (601)
msg = 'Ping-Pong needed when using non-local plasticity'
case (602)
msg = 'invalid selection for debug'
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!------------------------------------------------------------------------------------------------
! errors related to YAML data
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case (701)
msg = 'Incorrect indent/Null value not allowed'
case (702)
msg = 'Invalid use of flow yaml'
case (703)
msg = 'Space expected after a list indicator - '
case (704)
msg = 'Space expected after a colon for <key>: <value> pair'
case (705)
msg = 'Unsupported feature'
case (706)
msg = 'Access by incorrect node type'
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!-------------------------------------------------------------------------------------------------
! errors related to the grid solver
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case (809)
msg = 'initializing FFTW'
case (810)
msg = 'FFTW plan creation'
case (831)
msg = 'mask consistency violated in grid load case'
case (832)
msg = 'ill-defined L (line partly defined) in grid load case'
case (834)
msg = 'negative time increment in grid load case'
case (835)
msg = 'non-positive increments in grid load case'
case (836)
msg = 'non-positive result frequency in grid load case'
case (837)
msg = 'incomplete loadcase'
case (838)
msg = 'mixed boundary conditions allow rotation'
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case (839)
msg = 'non-positive restart frequency in grid load case'
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case (841)
msg = 'missing header length info in grid mesh'
case (842)
msg = 'incomplete information in grid mesh header'
case (843)
msg = 'microstructure count mismatch'
case (846)
msg = 'rotation for load case rotation ill-defined (R:RT != I)'
case (891)
msg = 'unknown solver type selected'
case (892)
msg = 'unknown filter type selected'
case (894)
msg = 'MPI error'
!-------------------------------------------------------------------------------------------------
! general error messages
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case default
msg = 'unknown error number...'
end select
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!$OMP CRITICAL (write2out)
write(0,'(/,a)') ' ┌'//IO_DIVIDER//'┐'
write(0,'(a,24x,a,40x,a)') ' │','error', '│'
write(0,'(a,24x,i3,42x,a)') ' │',error_ID, '│'
write(0,'(a)') ' ├'//IO_DIVIDER//'┤'
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write(formatString,'(a,i6.6,a,i6.6,a)') '(1x,a4,a',max(1,len_trim(msg)),',',&
max(1,72-len_trim(msg)-4),'x,a)'
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write(0,formatString) '│ ',trim(msg), '│'
if (present(ext_msg)) then
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write(formatString,'(a,i6.6,a,i6.6,a)') '(1x,a4,a',max(1,len_trim(ext_msg)),',',&
max(1,72-len_trim(ext_msg)-4),'x,a)'
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write(0,formatString) '│ ',trim(ext_msg), '│'
endif
if (present(el)) &
write(0,'(a19,1x,i9,44x,a3)') ' │ at element ',el, '│'
if (present(ip)) &
write(0,'(a19,1x,i9,44x,a3)') ' │ at IP ',ip, '│'
if (present(g)) &
write(0,'(a19,1x,i9,44x,a3)') ' │ at constituent',g, '│'
if (present(instance)) &
write(0,'(a19,1x,i9,44x,a3)') ' │ at instance ',instance, '│'
write(0,'(a,69x,a)') ' │', '│'
write(0,'(a)') ' └'//IO_DIVIDER//'┘'
flush(0)
call quit(9000+error_ID)
!$OMP END CRITICAL (write2out)
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end subroutine IO_error
!--------------------------------------------------------------------------------------------------
!> @brief writes warning statement to standard out
!--------------------------------------------------------------------------------------------------
subroutine IO_warning(warning_ID,el,ip,g,ext_msg)
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integer, intent(in) :: warning_ID
integer, optional, intent(in) :: el,ip,g
character(len=*), optional, intent(in) :: ext_msg
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character(len=pStringLen) :: msg
character(len=pStringLen) :: formatString
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select case (warning_ID)
case (1)
msg = 'unknown key'
case (34)
msg = 'invalid restart increment given'
case (35)
msg = 'could not get $DAMASK_NUM_THREADS'
case (40)
msg = 'found spectral solver parameter'
case (42)
msg = 'parameter has no effect'
case (43)
msg = 'main diagonal of C66 close to zero'
case (47)
msg = 'no valid parameter for FFTW, using FFTW_PATIENT'
case (50)
msg = 'not all available slip system families are defined'
case (51)
msg = 'not all available twin system families are defined'
case (52)
msg = 'not all available parameters are defined'
case (53)
msg = 'not all available transformation system families are defined'
case (101)
msg = 'crystallite debugging off'
case (201)
msg = 'position not found when parsing line'
case (207)
msg = 'line truncated'
case (600)
msg = 'crystallite responds elastically'
case (601)
msg = 'stiffness close to zero'
case (650)
msg = 'polar decomposition failed'
case (700)
msg = 'unknown crystal symmetry'
case (850)
msg = 'max number of cut back exceeded, terminating'
case default
msg = 'unknown warning number'
end select
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!$OMP CRITICAL (write2out)
write(6,'(/,a)') ' ┌'//IO_DIVIDER//'┐'
write(6,'(a,24x,a,38x,a)') ' │','warning', '│'
write(6,'(a,24x,i3,42x,a)') ' │',warning_ID, '│'
write(6,'(a)') ' ├'//IO_DIVIDER//'┤'
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write(formatString,'(a,i6.6,a,i6.6,a)') '(1x,a4,a',max(1,len_trim(msg)),',',&
max(1,72-len_trim(msg)-4),'x,a)'
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write(6,formatString) '│ ',trim(msg), '│'
if (present(ext_msg)) then
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write(formatString,'(a,i6.6,a,i6.6,a)') '(1x,a4,a',max(1,len_trim(ext_msg)),',',&
max(1,72-len_trim(ext_msg)-4),'x,a)'
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write(6,formatString) '│ ',trim(ext_msg), '│'
endif
if (present(el)) &
write(6,'(a19,1x,i9,44x,a3)') ' │ at element ',el, '│'
if (present(ip)) &
write(6,'(a19,1x,i9,44x,a3)') ' │ at IP ',ip, '│'
if (present(g)) &
write(6,'(a19,1x,i9,44x,a3)') ' │ at constituent',g, '│'
write(6,'(a,69x,a)') ' │', '│'
write(6,'(a)') ' └'//IO_DIVIDER//'┘'
flush(6)
!$OMP END CRITICAL (write2out)
end subroutine IO_warning
!--------------------------------------------------------------------------------------------------
!> @brief check correctness of some IO functions
!--------------------------------------------------------------------------------------------------
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subroutine selfTest
integer, dimension(:), allocatable :: chunkPos
character(len=:), allocatable :: str
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if(dNeq(1.0_pReal, IO_stringAsFloat('1.0'))) call IO_error(0,ext_msg='IO_stringAsFloat')
if(dNeq(1.0_pReal, IO_stringAsFloat('1e0'))) call IO_error(0,ext_msg='IO_stringAsFloat')
if(dNeq(0.1_pReal, IO_stringAsFloat('1e-1'))) call IO_error(0,ext_msg='IO_stringAsFloat')
if(3112019 /= IO_stringAsInt( '3112019')) call IO_error(0,ext_msg='IO_stringAsInt')
if(3112019 /= IO_stringAsInt(' 3112019')) call IO_error(0,ext_msg='IO_stringAsInt')
if(-3112019 /= IO_stringAsInt('-3112019')) call IO_error(0,ext_msg='IO_stringAsInt')
if(3112019 /= IO_stringAsInt('+3112019 ')) call IO_error(0,ext_msg='IO_stringAsInt')
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if(.not. IO_stringAsBool(' True')) call IO_error(0,ext_msg='IO_stringAsBool')
if(.not. IO_stringAsBool(' True ')) call IO_error(0,ext_msg='IO_stringAsBool')
if( IO_stringAsBool(' False')) call IO_error(0,ext_msg='IO_stringAsBool')
if( IO_stringAsBool('False')) call IO_error(0,ext_msg='IO_stringAsBool')
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if(any([1,1,1] /= IO_stringPos('a'))) call IO_error(0,ext_msg='IO_stringPos')
if(any([2,2,3,5,5] /= IO_stringPos(' aa b'))) call IO_error(0,ext_msg='IO_stringPos')
str=' 1.0 xxx'
chunkPos = IO_stringPos(str)
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if(dNeq(1.0_pReal,IO_floatValue(str,chunkPos,1))) call IO_error(0,ext_msg='IO_floatValue')
str='M 3112019 F'
chunkPos = IO_stringPos(str)
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if(3112019 /= IO_intValue(str,chunkPos,2)) call IO_error(0,ext_msg='IO_intValue')
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if(.not. IO_isBlank(' ')) call IO_error(0,ext_msg='IO_isBlank/1')
if(.not. IO_isBlank(' #isBlank')) call IO_error(0,ext_msg='IO_isBlank/2')
if( IO_isBlank(' i#s')) call IO_error(0,ext_msg='IO_isBlank/3')
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str = IO_rmComment('#')
if (str /= '' .or. len(str) /= 0) call IO_error(0,ext_msg='IO_rmComment/1')
str = IO_rmComment(' #')
if (str /= '' .or. len(str) /= 0) call IO_error(0,ext_msg='IO_rmComment/2')
str = IO_rmComment(' # ')
if (str /= '' .or. len(str) /= 0) call IO_error(0,ext_msg='IO_rmComment/3')
str = IO_rmComment(' # a')
if (str /= '' .or. len(str) /= 0) call IO_error(0,ext_msg='IO_rmComment/4')
str = IO_rmComment(' # a')
if (str /= '' .or. len(str) /= 0) call IO_error(0,ext_msg='IO_rmComment/5')
str = IO_rmComment(' a#')
if (str /= ' a' .or. len(str) /= 2) call IO_error(0,ext_msg='IO_rmComment/6')
str = IO_rmComment(' ab #')
if (str /= ' ab'.or. len(str) /= 3) call IO_error(0,ext_msg='IO_rmComment/7')
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end subroutine selfTest
end module IO