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dshr_stream_mod.F90
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dshr_stream_mod.F90
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module dshr_stream_mod
! -------------------------------------------------------------------------------
! Data type and methods to manage input data streams.
! A "data stream" is a sequence of input files where each file contains the
! same set of data fields and all the data fields are on the same grid.
! The sequence of input data files provides an uninterupted time series of
! data.
!
! A stream data type stores information about one data stream, including the
! range of data date years to use and how data dates align with model dates.
!
! Given a model date, this module can return data dates that are upper and
! lower time bounds around the given model date and the names of the files
! containing those dates.
! -------------------------------------------------------------------------------
use shr_kind_mod , only : r8=>shr_kind_r8, cs=>shr_kind_cs, cl=>shr_kind_cl, cxx=>shr_kind_cxx
use shr_sys_mod , only : shr_sys_abort
use shr_const_mod , only : shr_const_cday
use shr_string_mod , only : shr_string_leftalign_and_convert_tabs, shr_string_parseCFtunit
use shr_cal_mod , only : shr_cal_noleap
use shr_cal_mod , only : shr_cal_date2ymd
use shr_cal_mod , only : shr_cal_ymd2date
use shr_cal_mod , only : shr_cal_calendarName
use shr_cal_mod , only : shr_cal_advDate
use shr_cal_mod , only : shr_cal_advdateint
use shr_cal_mod , only : shr_cal_leapyear
use dshr_methods_mod , only : chkerr
use pio , only : pio_noerr, pio_seterrorhandling, pio_inq_att, pio_openfile, pio_closefile
use pio , only : file_desc_t, pio_inq_varid, iosystem_desc_t, pio_file_is_open
use pio , only : pio_nowrite, pio_inquire_dimension, pio_inquire_variable, pio_bcast_error
use pio , only : pio_get_att, pio_get_var
#ifdef CESMCOUPLED
use shr_pio_mod , only : shr_pio_getiosys, shr_pio_getiotype, shr_pio_getioformat
#endif
implicit none
private ! default private
! !PUBLIC TYPES:
public :: shr_stream_streamType ! stream data type with private components
! !PUBLIC MEMBER FUNCTIONS:
public :: shr_stream_init_from_esmfconfig
#ifndef DISABLE_FoX
public :: shr_stream_init_from_xml
#endif
public :: shr_stream_init_from_inline ! initial stream type
public :: shr_stream_findBounds ! return lower/upper bounding date info
public :: shr_stream_getMeshFileName ! return stream filename
public :: shr_stream_getModelFieldList ! return model field name list
public :: shr_stream_getStreamFieldList! return stream file field name list
public :: shr_stream_getPrevFileName ! return previous file in sequence
public :: shr_stream_getNextFileName ! return next file in sequence
public :: shr_stream_getNFiles ! get the number of files in a stream
public :: shr_stream_getCalendar ! get the stream calendar
public :: shr_stream_getCurrFile ! get the currfile, fileopen, and currpioid
public :: shr_stream_getData ! get stream data from target file
public :: shr_stream_setCurrFile ! set the currfile, fileopen, and currpioid
public :: shr_stream_dataDump ! internal stream data for debugging
public :: shr_stream_restIO ! read or write to netcdf restart file
character(CS),parameter,public :: shr_stream_file_null = 'not_set'
! valid values for time extrapoloation
character(CS),parameter,public :: shr_stream_taxis_cycle = 'cycle'
character(CS),parameter,public :: shr_stream_taxis_extend = 'extend'
character(CS),parameter,public :: shr_stream_taxis_limit = 'limit'
! valid values for time interpolation
character(CS),parameter,public :: shr_stream_tinterp_lower = 'lower'
character(CS),parameter,public :: shr_stream_tinterp_upper = 'upper'
character(CS),parameter,public :: shr_stream_tinterp_nearest = 'nearest'
character(CS),parameter,public :: shr_stream_tinterp_linear = 'linear'
character(CS),parameter,public :: shr_stream_tinterp_coszen = 'coszen'
! valid values for mapping interpolation
character(CS),parameter,public :: shr_stream_mapalgo_bilinear = 'bilinear'
character(CS),parameter,public :: shr_stream_mapalgo_redist = 'redist'
character(CS),parameter,public :: shr_stream_mapalgo_nn = 'nn'
character(CS),parameter,public :: shr_stream_mapalgo_consf = 'consf'
character(CS),parameter,public :: shr_stream_mapalgo_consd = 'consd'
character(CS),parameter,public :: shr_stream_mapalgo_none = 'none'
! a useful derived type to use inside shr_streamType ---
type shr_stream_file_type
character(CL) :: name = shr_stream_file_null ! the file name (full pathname)
logical :: haveData = .false. ! has t-coord data been read in?
integer :: nt = 0 ! size of time dimension
integer ,allocatable :: date(:) ! t-coord date: yyyymmdd
integer ,allocatable :: secs(:) ! t-coord secs: elapsed on date
type(file_desc_t) :: fileid
end type shr_stream_file_type
type shr_stream_data_variable
character(CS) :: nameinfile
character(CS) :: nameinmodel
end type shr_stream_data_variable
type shr_stream_streamType
!private ! no public access to internal components
type(iosystem_desc_t), pointer :: pio_subsystem
integer :: pio_iotype
integer :: pio_ioformat
integer :: logunit ! stdout log unit
logical :: init = .false. ! has stream been initialized
integer :: nFiles = 0 ! number of data files
integer :: yearFirst = -1 ! first year to use in t-axis (yyyymmdd)
integer :: yearLast = -1 ! last year to use in t-axis (yyyymmdd)
integer :: yearAlign = -1 ! align yearFirst with this model year
character(CS) :: lev_dimname = 'null' ! name of vertical dimension if any
character(CS) :: taxMode = shr_stream_taxis_cycle ! cycling option for time axis
character(CS) :: tInterpAlgo = 'linear' ! algorithm to use for time interpolation
character(CS) :: mapalgo = 'bilinear' ! type of mapping - default is 'bilinear'
character(CS) :: readMode = 'single' ! stream read model - 'single' or 'full_file'
real(r8) :: dtlimit = 1.5_r8 ! delta time ratio limits for time interpolation
integer :: offset = 0 ! offset in seconds of stream data
character(CS) :: calendar = shr_cal_noleap ! stream calendar (obtained from first stream data file)
character(CL) :: meshFile = ' ' ! filename for mesh for all fields on stream (full pathname)
integer :: k_lvd = -1 ! file/sample of least valid date
integer :: n_lvd = -1 ! file/sample of least valid date
logical :: found_lvd = .false. ! T <=> k_lvd,n_lvd have been set
integer :: k_gvd = -1 ! file/sample of greatest valid date
integer :: n_gvd = -1 ! file/sample of greatest valid date
logical :: found_gvd = .false. ! T <=> k_gvd,n_gvd have been set
logical :: fileopen = .false. ! is current file open
character(CL) :: currfile = ' ' ! current filename
integer :: nvars ! number of stream variables
character(CL) :: stream_vectors = 'null' ! stream vectors names
type(file_desc_t) :: currpioid ! current pio file desc
type(shr_stream_file_type) , allocatable :: file(:) ! filenames of stream data files (full pathname)
type(shr_stream_data_variable), allocatable :: varlist(:) ! stream variable names (on file and in model)
end type shr_stream_streamType
!----- parameters -----
integer :: debug = 0 ! edit/turn-on for debug write statements
real(R8) , parameter :: spd = shr_const_cday ! seconds per day
character(*) , parameter :: u_FILE_u = &
__FILE__
!===============================================================================
contains
!===============================================================================
#ifndef DISABLE_FoX
subroutine shr_stream_init_from_xml(streamfilename, streamdat, isroot_task, logunit, &
pio_subsystem, io_type, io_format, compname, rc)
use FoX_DOM, only : extractDataContent, destroy, Node, NodeList, parseFile, getElementsByTagname
use FoX_DOM, only : getLength, item
use ESMF, only : ESMF_VM, ESMF_VMGetCurrent, ESMF_VMBroadCast, ESMF_SUCCESS
! ---------------------------------------------------------------------
! The xml format of a stream txt file will look like the following
! <?xml version="1.0"?>
! <file id="stream" version="1.0">
! <stream_info>
! <taxmode></taxmode>
! <tintalgo></tintalgo>
! <mapalgo></mapalgo>
! <readmode></readmode>
! <dtlimit></dtlimit>
! <year_first></year_first>
! <year_last></year_last>
! <year_align></year_align>
! <vectors></vectors>
! <meshfile></meshfile>
! <lev_dimname></lev_dimname>
! <data_files>
! <file></file>
! </data_files>
! <data_variables>
! <var></var>
! </data_variables>
! <offset></offset>
! </stream_info>
! </file>
! ---------------------------------------------------------------------
! input/output variables
character(len=*), optional , intent(in) :: streamfilename
type(shr_stream_streamType) , intent(inout), pointer :: streamdat(:)
logical , intent(in) :: isroot_task
integer , intent(in) :: logunit
type(iosystem_desc_t) , intent(in), pointer :: pio_subsystem
integer , intent(in) :: io_type
integer , intent(in) :: io_format
character(len=*) , intent(in) :: compname
integer , intent(out) :: rc
! local variables
type(ESMF_VM) :: vm
type(Node) , pointer :: Sdoc, p, streamnode
type(NodeList) , pointer :: streamlist, filelist, varlist
character(len=CL) :: tmpstr
integer :: i, n, nstrms
integer :: status
integer :: tmp(6)
real(r8) :: rtmp(1)
character(*),parameter :: subName = '(shr_stream_init_from_xml) '
! --------------------------------------------------------
rc = ESMF_SUCCESS
nstrms = 0
if (isroot_task) then
Sdoc => parseFile(streamfilename, iostat=status)
if (status /= 0) then
call shr_sys_abort("Could not parse file "//trim(streamfilename))
endif
streamlist => getElementsByTagname(Sdoc, "stream_info")
nstrms = getLength(streamlist)
! allocate an array of shr_streamtype objects on just isroot_task
allocate(streamdat(nstrms))
! fill in non-default values for the streamdat attributes
do i= 1, nstrms
streamnode => item(streamlist, i-1)
p => item(getElementsByTagname(streamnode, "taxmode"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%taxmode)
if (streamdat(i)%taxmode /= shr_stream_taxis_cycle .and. &
streamdat(i)%taxmode /= shr_stream_taxis_extend .and. &
streamdat(i)%taxmode /= shr_stream_taxis_limit) then
call shr_sys_abort("tintalgo must have a value of either cycle, extend or limit")
end if
endif
p => item(getElementsByTagname(streamnode, "mapalgo"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%mapalgo)
if (streamdat(i)%mapalgo /= shr_stream_mapalgo_bilinear .and. &
streamdat(i)%mapalgo /= shr_stream_mapalgo_redist .and. &
streamdat(i)%mapalgo /= shr_stream_mapalgo_nn .and. &
streamdat(i)%mapalgo /= shr_stream_mapalgo_consf .and. &
streamdat(i)%mapalgo /= shr_stream_mapalgo_consd .and. &
streamdat(i)%mapalgo /= shr_stream_mapalgo_none) then
call shr_sys_abort("mapaglo must have a value of either bilinear, redist, nn, consf or consd")
end if
endif
p => item(getElementsByTagname(streamnode, "tintalgo"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%tInterpAlgo)
if (streamdat(i)%tInterpAlgo /= shr_stream_tinterp_lower .and. &
streamdat(i)%tInterpAlgo /= shr_stream_tinterp_upper .and. &
streamdat(i)%tInterpAlgo /= shr_stream_tinterp_nearest .and. &
streamdat(i)%tInterpAlgo /= shr_stream_tinterp_linear .and. &
streamdat(i)%tInterpAlgo /= shr_stream_tinterp_coszen) then
call shr_sys_abort("tintalgo must have a value of either lower, upper, nearest, linear or coszen")
end if
endif
p => item(getElementsByTagname(streamnode, "readmode"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%readMode)
endif
p=> item(getElementsByTagname(streamnode, "year_first"), 0)
if(associated(p)) then
call extractDataContent(p, streamdat(i)%yearFirst)
else
call shr_sys_abort("yearFirst must be provided")
endif
p=> item(getElementsByTagname(streamnode, "year_last"), 0)
if(associated(p)) then
call extractDataContent(p, streamdat(i)%yearLast)
else
call shr_sys_abort("yearLast must be provided")
endif
p=> item(getElementsByTagname(streamnode, "year_align"), 0)
if(associated(p)) then
call extractDataContent(p, streamdat(i)%yearAlign)
else
call shr_sys_abort("yearAlign must be provided")
endif
p=> item(getElementsByTagname(streamnode, "dtlimit"), 0)
if(associated(p)) then
call extractDataContent(p, streamdat(i)%dtlimit)
endif
p=> item(getElementsByTagname(streamnode, "offset"), 0)
if(associated(p)) then
call extractDataContent(p, streamdat(i)%offset)
endif
p=> item(getElementsByTagname(streamnode, "meshfile"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%meshfile)
else
call shr_sys_abort("mesh file name must be provided")
endif
p => item(getElementsByTagname(streamnode, "vectors"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%stream_vectors)
else
call shr_sys_abort("stream vectors must be provided")
endif
! Determine name of vertical dimension
p => item(getElementsByTagname(streamnode, "lev_dimname"), 0)
if (associated(p)) then
call extractDataContent(p, streamdat(i)%lev_dimname)
else
call shr_sys_abort("stream vertical level dimension name must be provided")
endif
! Determine input data files
p => item(getElementsByTagname(streamnode, "datafiles"), 0)
if (.not. associated(p)) then
call shr_sys_abort("stream data files must be provided")
endif
filelist => getElementsByTagname(p,"file")
streamdat(i)%nfiles = getLength(filelist)
allocate(streamdat(i)%file( streamdat(i)%nfiles))
do n=1, streamdat(i)%nfiles
p => item(filelist, n-1)
call extractDataContent(p, streamdat(i)%file(n)%name)
enddo
! Determine name(s) of stream variable(s) in file and model
p => item(getElementsByTagname(streamnode, "datavars"), 0)
varlist => getElementsByTagname(p, "var")
streamdat(i)%nvars = getLength(varlist)
allocate(streamdat(i)%varlist(streamdat(i)%nvars))
do n = 1, streamdat(i)%nvars
p => item(varlist, n-1)
call extractDataContent(p, tmpstr)
streamdat(i)%varlist(n)%nameinfile = tmpstr(1:index(tmpstr, " "))
streamdat(i)%varlist(n)%nameinmodel = tmpstr(index(trim(tmpstr), " ", .true.)+1:)
enddo
enddo
#ifndef CPRPGI
! PGI compiler has an issue with this call (empty procedure)
call destroy(Sdoc)
#endif
endif
! allocate streamdat instance on all tasks
call ESMF_VMGetCurrent(vm, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
tmp(1) = nstrms
call ESMF_VMBroadCast(vm, tmp, 1, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
nstrms = tmp(1)
if (.not. isroot_task) then
allocate(streamdat(nstrms))
endif
! broadcast the contents of streamdat from the main task to all tasks
do i=1,nstrms
tmp(1) = streamdat(i)%nfiles
tmp(2) = streamdat(i)%nvars
tmp(3) = streamdat(i)%yearFirst
tmp(4) = streamdat(i)%yearLast
tmp(5) = streamdat(i)%yearAlign
tmp(6) = streamdat(i)%offset
call ESMF_VMBroadCast(vm, tmp, 6, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
streamdat(i)%nfiles = tmp(1)
streamdat(i)%nvars = tmp(2)
streamdat(i)%yearFirst = tmp(3)
streamdat(i)%yearLast = tmp(4)
streamdat(i)%yearAlign = tmp(5)
streamdat(i)%offset = tmp(6)
if(.not. isroot_task) then
allocate(streamdat(i)%file(streamdat(i)%nfiles))
allocate(streamdat(i)%varlist(streamdat(i)%nvars))
endif
do n=1,streamdat(i)%nfiles
call ESMF_VMBroadCast(vm, streamdat(i)%file(n)%name, CL, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
enddo
do n=1,streamdat(i)%nvars
call ESMF_VMBroadCast(vm, streamdat(i)%varlist(n)%nameinfile, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%varlist(n)%nameinmodel, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
enddo
call ESMF_VMBroadCast(vm, streamdat(i)%meshfile, CL, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%lev_dimname, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%taxmode, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%readmode, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%tinterpAlgo, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%stream_vectors, CL, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMBroadCast(vm, streamdat(i)%mapalgo, CS, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
rtmp(1) = streamdat(i)%dtlimit
call ESMF_VMBroadCast(vm, rtmp, 1, 0, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
streamdat(i)%dtlimit = rtmp(1)
#ifdef CESMCOUPLED
! Initialize stream pio
streamdat(i)%pio_subsystem => shr_pio_getiosys(trim(compname))
streamdat(i)%pio_iotype = shr_pio_getiotype(trim(compname))
streamdat(i)%pio_ioformat = shr_pio_getioformat(trim(compname))
#else
streamdat(i)%pio_subsystem => pio_subsystem
streamdat(i)%pio_iotype = io_type
streamdat(i)%pio_ioformat = io_format
#endif
! Set logunit
streamdat(i)%logunit = logunit
call shr_stream_getCalendar(streamdat(i), 1, streamdat(i)%calendar)
! Error check
if (trim(streamdat(i)%taxmode) == shr_stream_taxis_extend .and. streamdat(i)%dtlimit < 1.e10) then
call shr_sys_abort(trim(subName)//" ERROR: if taxmode value is extend set dtlimit to 1.e30")
end if
! initialize flag that stream has been set
streamdat(i)%init = .true.
enddo
end subroutine shr_stream_init_from_xml
#endif
!===============================================================================
subroutine shr_stream_init_from_inline(streamdat, &
pio_subsystem, io_type, io_format, &
stream_meshfile, stream_lev_dimname, stream_mapalgo, &
stream_yearFirst, stream_yearLast, stream_yearAlign, &
stream_offset, stream_taxmode, stream_tintalgo, stream_dtlimit, &
stream_fldlistFile, stream_fldListModel, stream_fileNames, &
logunit, compname)
! --------------------------------------------------------
! set values of stream datatype independent of a reading in a stream text file
! this is used to initialize a stream directly from fortran interface
! --------------------------------------------------------
! input/output variables
type(shr_stream_streamType) ,pointer, intent(inout) :: streamdat(:) ! data streams (assume 1 below)
type(iosystem_desc_t) ,pointer, intent(in) :: pio_subsystem ! data structure required for pio operations
integer ,intent(in) :: io_type ! data format
integer ,intent(in) :: io_format ! netcdf format
character(*) ,intent(in) :: stream_meshFile ! full pathname to stream mesh file
character(*) ,intent(in) :: stream_lev_dimname ! name of vertical dimension in stream
character(*) ,intent(in) :: stream_mapalgo ! stream mesh -> model mesh mapping type
integer ,intent(in) :: stream_yearFirst ! first year to use
integer ,intent(in) :: stream_yearLast ! last year to use
integer ,intent(in) :: stream_yearAlign ! align yearFirst with this model year
character(*) ,intent(in) :: stream_tintalgo ! time interpolation algorithm
integer ,intent(in) :: stream_offset ! offset in seconds of stream data
character(*) ,intent(in) :: stream_taxMode ! time axis mode
real(r8) ,intent(in) :: stream_dtlimit ! ratio of max/min stream delta times
character(*) ,intent(in) :: stream_fldListFile(:) ! file field names, colon delim list
character(*) ,intent(in) :: stream_fldListModel(:) ! model field names, colon delim list
character(*) ,intent(in) :: stream_filenames(:) ! stream data filenames (full pathnamesa)
integer ,intent(in) :: logunit ! stdout unit
character(len=*) ,intent(in) :: compname ! component name (e.g. ATM, OCN...)
! local variables
integer :: n
integer :: nfiles
integer :: nvars
character(CS) :: calendar ! stream calendar
character(*),parameter :: subName = '(shr_stream_init_from_inline) '
! --------------------------------------------------------
! Assume only 1 stream
allocate(streamdat(1))
! overwrite default values
streamdat(1)%meshFile = trim(stream_meshFile)
streamdat(1)%lev_dimname = trim(stream_lev_dimname)
streamdat(1)%mapalgo = trim(stream_mapalgo)
streamdat(1)%yearFirst = stream_yearFirst
streamdat(1)%yearLast = stream_yearLast
streamdat(1)%yearAlign = stream_yearAlign
streamdat(1)%tinterpAlgo = trim(stream_tintalgo)
streamdat(1)%offset = stream_offset
streamdat(1)%taxMode = trim(stream_taxMode)
streamdat(1)%dtlimit = stream_dtlimit
#ifdef CESMCOUPLED
! Initialize stream pio
streamdat(1)%pio_subsystem => shr_pio_getiosys(trim(compname))
streamdat(1)%pio_iotype = shr_pio_getiotype(trim(compname))
streamdat(1)%pio_ioformat = shr_pio_getioformat(trim(compname))
#else
streamdat(1)%pio_subsystem => pio_subsystem
streamdat(1)%pio_iotype = io_type
streamdat(1)%pio_ioformat = io_format
#endif
! initialize stream filenames
if (allocated(streamdat(1)%file)) then
deallocate(streamdat(1)%file)
end if
nfiles = size(stream_filenames)
streamdat(1)%nfiles = nfiles
allocate(streamdat(1)%file(nfiles))
do n = 1, nfiles
streamdat(1)%file(n)%name = trim(stream_filenames(n))
enddo
! Determine name of stream variables in file and model
nvars = size(stream_fldlistFile)
streamdat(1)%nvars = nvars
allocate(streamdat(1)%varlist(nvars))
do n = 1, nvars
streamdat(1)%varlist(n)%nameinfile = trim(stream_fldlistFile(n))
streamdat(1)%varlist(n)%nameinmodel = trim(stream_fldlistModel(n))
end do
! Initialize logunit
streamdat(:)%logunit = logunit
! Get stream calendar
call shr_stream_getCalendar(streamdat(1), 1, calendar)
streamdat(1)%calendar = trim(calendar)
! Initialize flag that stream has been set
streamdat(1)%init = .true.
end subroutine shr_stream_init_from_inline
!===============================================================================
subroutine shr_stream_init_from_esmfconfig(streamfilename, streamdat, logunit, &
pio_subsystem, io_type, io_format, rc)
use esmf , only : ESMF_VM, ESMF_VMGetCurrent, ESMF_VMBroadCast
use esmf , only : ESMF_SUCCESS, ESMF_ConfigCreate, ESMF_ConfigLoadFile
use esmf , only : ESMF_ConfigGetLen, ESMF_ConfigGetAttribute
use esmf , only : ESMF_Config, ESMF_MAXSTR
!!---------------------------------------------------------------------
!! The configuration file is a text file that can have following entries
!! file_id: "stream"
!! file_version: 1.0
!! stream_info: 1
!! taxmode:
!! tInterpAlgo:
!! readMode:
!! mapalgo:
!! dtlimit:
!! yearFirst:
!! yearLast:
!! yearAlign:
!! stream_vectors:
!! stream_mesh_file:
!! stream_lev_dimname:
!! stream_data_files:
!! stream_data_variables:
!! stream_offset:
!!---------------------------------------------------------------------
! input/output variables
character(len=*), optional , intent(in) :: streamfilename
type(shr_stream_streamType) , intent(inout), pointer :: streamdat(:)
integer , intent(in) :: logunit
type(iosystem_desc_t) , intent(in), pointer :: pio_subsystem
integer , intent(in) :: io_type
integer , intent(in) :: io_format
integer , intent(out) :: rc
! local variables
type(ESMF_VM) :: vm
type(ESMF_Config) :: cf
integer :: i, n, nstrms
character(2) :: mystrm
character(*),parameter :: subName = '(shr_stream_init_from_esmfconfig)'
character(len=ESMF_MAXSTR), allocatable :: strm_tmpstrings(:)
character(*) , parameter :: u_FILE_u = __FILE__
! ---------------------------------------------------------------------
rc = ESMF_SUCCESS
nstrms = 0
! allocate streamdat instance on all tasks
call ESMF_VMGetCurrent(vm, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
! set ESMF config
cf = ESMF_ConfigCreate(rc=RC)
call ESMF_ConfigLoadFile(config=CF ,filename=trim(streamfilename), rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
! get number of streams
nstrms = ESMF_ConfigGetLen(config=CF, label='stream_info:', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
! allocate an array of shr_stream_streamtype objects on just isroot_task
if( nstrms > 0 ) then
allocate(streamdat(nstrms))
else
call shr_sys_abort("no stream_info in config file "//trim(streamfilename))
endif
! fill in non-default values for the streamdat attributes
do i=1, nstrms
write(mystrm,"(I2.2)") i
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%taxmode,label="taxmode"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%mapalgo,label="mapalgo"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%tInterpAlgo,label="tInterpAlgo"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%readMode,label="readMode"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
if( ESMF_ConfigGetLen(config=CF, label="yearFirst"//mystrm//':', rc=rc) > 0 ) then
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%yearFirst,label="yearFirst"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
else
call shr_sys_abort("yearFirst must be provided")
endif
if( ESMF_ConfigGetLen(config=CF, label="yearLast"//mystrm//':', rc=rc) > 0 ) then
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%yearLast,label="yearLast"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
else
call shr_sys_abort("yearLast must be provided")
endif
if( ESMF_ConfigGetLen(config=CF, label="yearAlign"//mystrm//':', rc=rc) > 0 ) then
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%yearAlign,label="yearAlign"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
else
call shr_sys_abort("yearAlign must be provided")
endif
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%dtlimit,label="dtlimit"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%offset,label="stream_offset"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
if( ESMF_ConfigGetLen(config=CF, label="stream_mesh_file"//mystrm//':', rc=rc) > 0 ) then
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%meshfile,label="stream_mesh_file"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
else
call shr_sys_abort("stream_mesh_file must be provided")
endif
if( ESMF_ConfigGetLen(config=CF, label="stream_vectors"//mystrm//':', rc=rc) > 0 ) then
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%stream_vectors,label="stream_vectors"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
else
call shr_sys_abort("stream_vectors must be provided")
endif
if( ESMF_ConfigGetLen(config=CF, label="stream_lev_dimname"//mystrm//':', rc=rc) > 0 ) then
call ESMF_ConfigGetAttribute(CF,value=streamdat(i)%lev_dimname,label="stream_lev_dimname"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
else
call shr_sys_abort("stream_lev_dimname must be provided")
endif
! Get a list of stream file names
streamdat(i)%nfiles = ESMF_ConfigGetLen(config=CF, label="stream_data_files"//mystrm//':', rc=rc)
if( streamdat(i)%nfiles > 0) then
allocate(streamdat(i)%file( streamdat(i)%nfiles))
allocate(strm_tmpstrings(streamdat(i)%nfiles))
call ESMF_ConfigGetAttribute(CF,valueList=strm_tmpstrings, label="stream_data_files"//mystrm//':', rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
do n=1,streamdat(i)%nfiles
streamdat(i)%file(n)%name = trim(strm_tmpstrings(n))
enddo
deallocate(strm_tmpstrings)
else
call shr_sys_abort("stream data files must be provided")
endif
! Get name of stream variables in file and model
streamdat(i)%nvars = ESMF_ConfigGetLen(config=CF, label="stream_data_variables"//mystrm//':', rc=rc)
if( streamdat(i)%nvars > 0) then
allocate(streamdat(i)%varlist(streamdat(i)%nvars))
allocate(strm_tmpstrings(streamdat(i)%nvars))
call ESMF_ConfigGetAttribute(CF,valueList=strm_tmpstrings,label="stream_data_variables"//mystrm//':', rc=rc)
do n=1, streamdat(i)%nvars
streamdat(i)%varlist(n)%nameinfile = strm_tmpstrings(n)(1:index(trim(strm_tmpstrings(n)), " "))
streamdat(i)%varlist(n)%nameinmodel = strm_tmpstrings(n)(index(trim(strm_tmpstrings(n)), " ", .true.)+1:)
enddo
deallocate(strm_tmpstrings)
else
call shr_sys_abort("stream data variables must be provided")
endif
! Initialize stream pio
streamdat(i)%pio_subsystem => pio_subsystem
streamdat(i)%pio_iotype = io_type
streamdat(i)%pio_ioformat = io_format
! Set logunit
streamdat(i)%logunit = logunit
call shr_stream_getCalendar(streamdat(i), 1, streamdat(i)%calendar)
! Error check
if (trim(streamdat(i)%taxmode) == shr_stream_taxis_extend .and. streamdat(i)%dtlimit < 1.e10) then
call shr_sys_abort(trim(subName)//" ERROR: if taxmode value is extend set dtlimit to 1.e30")
end if
enddo ! end loop nstrm
! initialize flag that stream has been set
streamdat(:)%init = .true.
end subroutine shr_stream_init_from_esmfconfig
!===============================================================================
subroutine shr_stream_findBounds(strm, mDateIn, secIn, isroot_task, &
mDateLB, dDateLB, secLB, n_lb, fileLB, mDateUB, dDateUB, secUB, n_ub, fileUB)
!-------------------------------------------------------------------------------
! Given a stream and a model date, find time coordinates of the upper and
! lower time bounds surrounding the models date. Returns the model date,
! data date, elasped seconds, time index, and file names associated with
! these upper and lower time bounds.
! 1) take the model date, map it into the data date range
! 2) find the upper and lower bounding data dates
! 3) return the bounding data and model dates, file names, & t-coord indicies
!-------------------------------------------------------------------------------
! input/output parameters:
type(shr_stream_streamType) ,intent(inout):: strm ! data stream to query
integer ,intent(in) :: mDateIn ! model date (yyyymmdd)
integer ,intent(in) :: secIn ! elapsed sec on model date
logical ,intent(in) :: isroot_task ! is mpi task root communicator task
integer ,intent(out) :: mDateLB ! model date of LB
integer ,intent(out) :: dDateLB ! data date of LB
integer ,intent(out) :: secLB ! elap sec of LB
integer ,intent(out) :: n_lb ! t-coord index of LB
character(*) ,intent(out) :: fileLB ! file containing LB
integer ,intent(out) :: mDateUB ! model date of UB
integer ,intent(out) :: dDateUB ! data date of UB
integer ,intent(out) :: secUB ! elap sec of UB
integer ,intent(out) :: n_ub ! t-coord index of UB
character(*) ,intent(out) :: fileUB ! file containing UB
! local variables
integer :: dDateIn ! model date mapped onto a data date
integer :: dDateF ! first date
integer :: dDateL ! last date
integer :: n,nf ! loop index wrt t-coord array within one file
integer :: k,kf ! loop index wrt list of files
integer :: k_ub,k_lb ! file index of U/L bounds
integer :: rCode ! return code
integer :: mYear ! year of model date
integer :: yrFirst ! first year of data loop
integer :: yrLast ! last year of data loop
integer :: yrAlign ! model year that aligns with yearFirst
integer :: nYears ! number of years in data loop
integer :: dYear ! data year corresponding to model year
integer :: yy,mm,dd ! year,month,day
real(R8) :: rDateIn ! model dDateIn + secs/(secs per day)
real(R8) :: rDate1 ! stream dDateIn + secs/(secs per day)
real(R8) :: rDate2 ! stream dDateIn + secs/(secs per day)
real(R8) :: rDatelvd ! lvd dDate + secs/(secs per day)
real(R8) :: rDategvd ! gvd dDate + secs/(secs per day)
logical :: cycle ! is cycling on or off
logical :: limit ! is limiting on or off
character(*),parameter :: subName = '(shr_stream_findBounds) '
character(*),parameter :: F00 = "('(shr_stream_findBounds) ',8a)"
character(*),parameter :: F01 = "('(shr_stream_findBounds) ',a,i9.8,a)"
character(*),parameter :: F02 = "('(shr_stream_findBounds) ',a,2i9.8,i6,i5,1x,a)"
character(*),parameter :: F03 = "('(shr_stream_findBounds) ',a,i4)"
character(*),parameter :: F04 = "('(shr_stream_findBounds) ',2a,i4)"
!-------------------------------------------------------------------------------
if (debug>0 .and. isroot_task) then
write(strm%logunit,F02) "DEBUG: ---------- enter ------------------"
end if
if ( .not. strm%init ) then
call shr_sys_abort(trim(subName)//" ERROR: trying to find bounds of uninitialized stream")
end if
if (trim(strm%taxMode) == trim(shr_stream_taxis_cycle)) then
cycle = .true.
limit = .false.
elseif (trim(strm%taxMode) == trim(shr_stream_taxis_extend)) then
cycle = .false.
limit = .false.
elseif (trim(strm%taxMode) == trim(shr_stream_taxis_limit)) then
cycle = .false.
limit = .true.
else
write(strm%logunit,*) trim(subName),' ERROR: illegal taxMode = ',trim(strm%taxMode)
call shr_sys_abort(trim(subName)//' ERROR: illegal taxMode = '//trim(strm%taxMode))
endif
!----------------------------------------------------------------------------
! convert/map the model year/date into a data year/date
! note: these values will be needed later to convert data year to model year
!----------------------------------------------------------------------------
mYear = mDateIn/10000 ! assumes/require F90 truncation
yrFirst = strm%yearFirst ! first year in data sequence
yrLast = strm%yearLast ! last year in data sequence
yrAlign = strm%yearAlign ! model year corresponding to yearFirst
nYears = yrLast - yrFirst + 1 ! number of years in data sequence
dDateF = yrFirst * 10000 + 101 ! first date in valid range
dDateL = (yrLast+1) * 10000 + 101 ! last date in valid range
if (cycle) then
dYear = yrFirst + modulo(mYear-yrAlign+(2*nYears),nYears) ! current data year
if(debug>0 .and. isroot_task) then
write(strm%logunit, *) trim(subname), ' dyear, yrfirst, myear, yralign, nyears =', dyear, yrfirst, myear, yralign, nyears
endif
else
dYear = yrFirst + mYear - yrAlign
endif
if (dYear < 0) then
write(strm%logunit,*) trim(subName),' ERROR: dyear lt zero = ',dYear
call shr_sys_abort(trim(subName)//' ERROR: dyear lt zero')
endif
dDateIn = dYear*10000 + modulo(mDateIn,10000) ! mDateIn mapped to range of data years
rDateIn = dDateIn + secIn/spd ! dDateIn + fraction of a day
if (debug>0 .and. isroot_task) then
write(strm%logunit,'(a,2(i8,2x),2(f20.4,2x))') 'mYear,dYear,dDateIn,rDateIn = ',mYear,dYear,dDateIn,rDateIn
write(strm%logunit,'(a,2(i8,2x),2(f20.4,2x))') 'yrFirst,yrLast,yrAlign,nYears= ',yrFirst,yrLast,yrAlign,nYears
endif
!----------------------------------------------------------------------------
! find least valid date (lvd)
!----------------------------------------------------------------------------
if (.not. strm%found_lvd) then
A: do k=1,strm%nFiles
if (.not. strm%file(k)%haveData) then
call shr_stream_readtCoord(strm, k, isroot_task, rCode)
if ( rCode /= 0 )then
call shr_sys_abort(trim(subName)//" ERROR: readtCoord1")
end if
end if
do n=1,strm%file(k)%nt
if ( dDateF <= strm%file(k)%date(n) ) then
!--- found a date in or beyond yearFirst ---
strm%k_lvd = k
strm%n_lvd = n
strm%found_lvd = .true.
exit A
end if
end do
end do A
if (.not. strm%found_lvd) then
write(strm%logunit,F00) "ERROR: LVD not found, all data is before yearFirst"
call shr_sys_abort(trim(subName)//" ERROR: LVD not found, all data is before yearFirst")
else
!--- LVD is in or beyond yearFirst, verify it is not beyond yearLast ---
if ( dDateL <= strm%file(strm%k_lvd)%date(strm%n_lvd) ) then
write(strm%logunit,F00) "ERROR: LVD not found, all data is after yearLast"
call shr_sys_abort(trim(subName)//" ERROR: LVD not found, all data is after yearLast")
end if
end if
if (debug>1 .and. isroot_task ) then
if (strm%found_lvd) write(strm%logunit,F01) " found LVD = ",strm%file(k)%date(n)
end if
end if
if (strm%found_lvd) then
k = strm%k_lvd
n = strm%n_lvd
rDatelvd = strm%file(k)%date(n) + strm%file(k)%secs(n)/spd ! LVD date + frac day
else
write(strm%logunit,F00) "ERROR: LVD not found yet"
call shr_sys_abort(trim(subName)//" ERROR: LVD not found yet")
endif
if (strm%found_gvd) then
k = strm%k_gvd
n = strm%n_gvd
rDategvd = strm%file(k)%date(n) + strm%file(k)%secs(n)/spd ! GVD date + frac day
else
rDategvd = 99991231.0
endif
if (debug>0 .and. isroot_task) then
write(strm%logunit,'(a,3(f20.4,2x))') 'rDateIn,rDatelvd,rDategvd = ',rDateIn,rDatelvd,rDategvd
endif
!-----------------------------------------------------------
! dateIn < rDatelvd
! limit -> abort
! extend -> use lvd value, set LB to 00000101
! cycle -> lvd is UB, gvd is LB, shift mDateLB by -nYears
!-----------------------------------------------------------
if (rDateIn < rDatelvd) then
if (limit) then
write(strm%logunit,*) trim(subName)," ERROR: limit on and rDateIn lt rDatelvd",rDateIn,rDatelvd
call shr_sys_abort(trim(subName)//" ERROR: rDateIn lt rDatelvd limit true")
endif
if (.not.cycle) then
k_lb = strm%k_lvd
n_lb = strm%n_lvd
dDateLB = 00000101
mDateLB = 00000101
secLB = 0
fileLB = strm%file(k_lb)%name
k_ub = strm%k_lvd
n_ub = strm%n_lvd
dDateUB = strm%file(k_ub)%date(n_ub)
call shr_cal_date2ymd(dDateUB,yy,mm,dd)
yy = yy + (mYear-dYear)
call shr_cal_ymd2date(yy,mm,dd,mDateUB)
secUB = strm%file(k_ub)%secs(n_ub)
fileUB = strm%file(k_ub)%name
return
endif
if (cycle) then
!--- find greatest valid date (GVD) ---
if (.not. strm%found_gvd) then
!--- start search at last file & move toward first file ---
B: do k=strm%nFiles,1,-1
!--- read data for file number k ---
if (.not. strm%file(k)%haveData) then
call shr_stream_readtCoord(strm, k, isroot_task, rCode)
if ( rCode /= 0 )then
call shr_sys_abort(trim(subName)//" ERROR: readtCoord2")
end if
end if
!--- start search at greatest date & move toward least date ---
do n=strm%file(k)%nt,1,-1
if ( strm%file(k)%date(n) < dDateL ) then
strm%k_gvd = k
strm%n_gvd = n
strm%found_gvd = .true.
rDategvd = strm%file(k)%date(n) + strm%file(k)%secs(n)/spd ! GVD date + frac day
if (debug>1 .and. isroot_task) then
write(strm%logunit,F01) " found GVD ",strm%file(k)%date(n)
end if
exit B
end if
end do
end do B
end if
if (.not. strm%found_gvd) then
write(strm%logunit,F00) "ERROR: GVD not found1"
call shr_sys_abort(trim(subName)//" ERROR: GVD not found1")
endif
k_lb = strm%k_gvd
n_lb = strm%n_gvd
dDateLB = strm%file(k_lb)%date(n_lb)
call shr_cal_date2ymd(dDateLB,yy,mm,dd)
yy = yy + (mYear-dYear-nYears)
call shr_cal_ymd2date(yy,mm,dd,mDateLB)
secLB = strm%file(k_lb)%secs(n_lb)
fileLB = strm%file(k_lb)%name
k_ub = strm%k_lvd
n_ub = strm%n_lvd
dDateUB = strm%file(k_ub)%date(n_ub)
call shr_cal_date2ymd(dDateUB,yy,mm,dd)
yy = yy + (mYear-dYear)
call shr_cal_ymd2date(yy,mm,dd,mDateUB)
secUB = strm%file(k_ub)%secs(n_ub)
fileUB = strm%file(k_ub)%name
return
endif
!-----------------------------------------------------------
! dateIn > rDategvd
! limit -> abort
! extend -> use gvd value, set UB to 99991231
! cycle -> lvd is UB, gvd is LB, shift mDateLB by +nYears
!-----------------------------------------------------------
else if (strm%found_gvd .and. rDateIn >= rDategvd) then
if (limit) then
write(strm%logunit,*) trim(subName)," ERROR: limit on and rDateIn gt rDategvd",rDateIn,rDategvd
call shr_sys_abort(trim(subName)//" ERROR: rDateIn gt rDategvd limit true")
endif
if (.not.cycle) then
k_lb = strm%k_gvd
n_lb = strm%n_gvd
dDateLB = strm%file(k_lb)%date(n_lb)