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mod_za_mp.h
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mod_za_mp.h
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#if defined(NOMPIR8) /* LAM does not support mpi_real[48] */
# define MTYPE4 mpi_real
#else /* most MPI's allow mpi_real[48] */
# define MTYPE4 mpi_real4
#endif
!
!-----------------------------------------------------------------------
!
! machine dependent I/O routines.
! MPI-2 I/O version, with I/O from first processor in each row.
! contained in module mod_za.
!
! author: Alan J. Wallcraft, NRL.
!
!-----------------------------------------------------------------------
!
subroutine zagetc(cline,ios, iunit)
implicit none
!
character*80, intent(out) :: cline
integer, intent(out) :: ios
integer, intent(in) :: iunit
!
!**********
!*
! 1) machine specific routine for reading one text line from a file.
!
! 2) The read is performed on the first processor only.
!*
!**********
!
integer iline,ibuf
common/czgetc/ iline(81,0:1),ibuf
save /czgetc/
!
integer i
!
! --- I/O from first processor only
!
ibuf = mod(ibuf+1,2) !initialized in zaiost
!
if (mnproc.eq.1) then
read(iunit,'(a)',iostat=ios) cline
do i= 1,80
iline(i,ibuf) = ichar(cline(i:i))
enddo
iline(81,ibuf) = ios
endif
!
! broadcast to all other processors
!
call xcgetc(iline(:,ibuf))
do i= 1,80
cline(i:i) = char(iline(i,ibuf))
enddo
ios = iline(81,ibuf) ! iostat value
return
end subroutine zagetc
subroutine zaiopn(cstat, iaunit)
implicit none
!
integer, intent(in) :: iaunit
character*(*), intent(in) :: cstat
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for opening a file for array i/o.
!
! must call zaiost before first call to zaiopn.
! see also 'zaiope' and 'zaiopf'.
!
! 2) the filename is taken from the environment variable FORxxxA,
! where xxx = iaunit, with default fort.xxxa.
!
! array i/o is mpi-2 i/o.
!
! 3) iaunit+uaoff is the i/o unit used for arrays. array i/o might not
! use fortran i/o units, but, for compatability, assume that
! iaunit+uaoff refers to a fortran i/o unit anyway.
! cstat indicates the file type, it can be 'scratch', 'old', or
! 'new'.
! all i/o to iaunit must be performed by zaiord and zaiowr.
! the file should be closed using zaiocl.
!*
!**********
!
! --- spval = data void marker, 2^100 or about 1.2676506e30
real*4 spval
parameter (spval=2.0**100)
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
!
integer(kind=mpi_offset_kind) disp
integer iamode,iahint
character cfile*256,cenv*7
#if defined(TIMER)
!
call xctmr0(16)
#endif
!
! test file state.
!
if (iarec(iaunit).ne.-1) then
write(lp,9000) iaunit
call xcstop('(zaiopn)')
stop '(zaiopn)'
endif
!
iarec(iaunit) = 0
!
! --- I/O from first processor in each row.
!
if (mproc.eq.mp_1st) then
!
! if (mnproc.eq.1) then
! write(lp,*) 'zaiopn - iaunit = ',iaunit
! call flush(lp)
! endif
!
! get filename.
!
write(cenv,"('FOR',i3.3,'A')") iaunit
cfile = ' '
call getenv(cenv,cfile)
if (cfile.eq.' ') then
write(cfile,"('fort.',i3.3,'a')") iaunit
endif
!
! open file.
!
if (cstat.eq.'OLD' .or. &
cstat.eq.'old' ) then
iamode = MPI_MODE_RDONLY + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiord !see zaiost
file_count_zaiord = file_count_zaiord + 1
elseif (cstat.eq.'NEW' .or. &
cstat.eq.'new' ) then
iamode = MPI_MODE_WRONLY + &
MPI_MODE_CREATE + &
MPI_MODE_EXCL + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiowr !see zaiost
file_count_zaiowr = file_count_zaiowr + 1
else !scratch file
iamode = MPI_MODE_RDWR + &
MPI_MODE_DELETE_ON_CLOSE + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiowr !see zaiost
file_count_zaiowr = file_count_zaiowr + 1
endif
call mpi_file_open(group_1st_in_row, &
trim(cfile), &
iamode, &
iahint, &
iahand(iaunit), &
mpierr)
if (mpierr.ne.0) then
write(lp,9100) iaunit
write(lp,*) 'mpi_file_open - mpierr = ',mpierr
call flush(lp)
call xchalt('(zaiopn)')
stop '(zaiopn)'
endif !mpierr
disp = 0
call mpi_file_set_view(iahand(iaunit), &
disp, &
MTYPE4, &
MTYPE4, &
"native", & !1st convert to big-endian if necessary
iahint, &
mpierr)
if (mpierr.ne.0) then
write(lp,9100) iaunit
write(lp,*) 'mpi_file_set_view - mpierr = ',mpierr
call flush(lp)
call xchalt('(zaiopn)')
stop '(zaiopn)'
endif !mpierr
!
endif ! I/O from first processor in each row
call xcsync(no_flush)
#if defined(TIMER)
!
call xctmr1(16)
#endif
return
!
9000 format(/ /10x,'error in zaiopn - array I/O unit ', &
i3,' is not marked as available.'/ /)
9100 format(/ /10x,'error in zaiopn - can''t open unit ',i3, &
', for array I/O.'/ /)
end subroutine zaiopn
subroutine zaiope(cenv,cstat, iaunit)
implicit none
!
integer, intent(in) :: iaunit
character*(*), intent(in) :: cenv,cstat
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for opening a file for array i/o.
!
! must call zaiost before first call to zaiope.
! see also 'zaiopn' and 'zaiopf'.
!
! 2) the filename is taken from environment variable 'cenv'.
!
! array i/o is mpi-2 i/o.
!
! 3) iaunit+uaoff is the i/o unit used for arrays. array i/o might not
! use fortran i/o units, but, for compatability, assume that
! iaunit+uaoff refers to a fortran i/o unit anyway.
! cstat indicates the file type, it can be 'scratch', 'old', or
! 'new'.
! all i/o to iaunit must be performed by zaiord and zaiowr.
! arrays passed to these routines must conform to 'h'.
! the file should be closed using zaiocl.
!*
!**********
!
! --- spval = data void marker, 2^100 or about 1.2676506e30
real*4 spval
parameter (spval=2.0**100)
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
!
integer(kind=mpi_offset_kind) disp
integer iamode,iahint
character cfile*256
!
#if defined(TIMER)
!
call xctmr0(16)
#endif
!
! test file state.
!
if (iarec(iaunit).ne.-1) then
write(lp,9000) iaunit
call xcstop('(zaiope)')
stop '(zaiope)'
endif
!
iarec(iaunit) = 0
!
! --- I/O from first processor in each row.
!
if (mproc.eq.mp_1st) then
!
! if (mnproc.eq.1) then
! write(lp,*) 'zaiope - iaunit = ',iaunit
! call flush(lp)
! endif
!
! get filename.
!
cfile = ' '
call getenv(cenv,cfile)
if (cfile.eq.' ') then
write(lp,9300) trim(cenv)
write(lp,*) 'iaunit = ',iaunit
call flush(lp)
call xchalt('(zaiope)')
stop '(zaiope)'
endif
!
! open file.
!
if (cstat.eq.'OLD' .or. &
cstat.eq.'old' ) then
iamode = MPI_MODE_RDONLY + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiord !see zaiost
file_count_zaiord = file_count_zaiord + 1
elseif (cstat.eq.'NEW' .or. &
cstat.eq.'new' ) then
iamode = MPI_MODE_WRONLY + &
MPI_MODE_CREATE + &
MPI_MODE_EXCL + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiowr !see zaiost
file_count_zaiowr = file_count_zaiowr + 1
else !scratch file
iamode = MPI_MODE_RDWR + &
MPI_MODE_DELETE_ON_CLOSE + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiowr !see zaiost
file_count_zaiowr = file_count_zaiowr + 1
endif
call mpi_file_open(group_1st_in_row, &
trim(cfile), &
iamode, &
iahint, &
iahand(iaunit), &
mpierr)
if (mpierr.ne.0) then
write(lp,9100) iaunit,trim(cfile)
write(lp,*) 'mpi_file_open - mpierr = ',mpierr
write(lp,*) 'cenv = ',trim(cenv)
call flush(lp)
call xchalt('(zaiope)')
stop '(zaiope)'
endif !mpierr
disp = 0
call mpi_file_set_view(iahand(iaunit), &
disp, &
MTYPE4, &
MTYPE4, &
"native", & !1st convert to big-endian if necessary
iahint, &
mpierr)
if (mpierr.ne.0) then
write(lp,9100) iaunit,trim(cfile)
write(lp,*) 'mpi_file_set_view - mpierr = ',mpierr
write(lp,*) 'cenv = ',trim(cenv)
call flush(lp)
call xchalt('(zaiope)')
stop '(zaiope)'
endif !mpierr
!
endif ! I/O from first processor in each row
call xcsync(no_flush)
#if defined(TIMER)
!
call xctmr1(16)
#endif
return
!
9000 format(/ /10x,'error in zaiope - array I/O unit ', &
i3,' is not marked as available.'/ /)
9100 format(/ /10x,'error in zaiope - can''t open unit ',i3, &
', for array I/O.' / &
10x,'cfile = ',a/ /)
9300 format(/ /10x,'error in zaiope - environment variable ',a, &
' not defined'/ /)
end subroutine zaiope
subroutine zaiopf(cfile,cstat, iaunit)
implicit none
!
integer, intent(in) :: iaunit
character*(*), intent(in) :: cfile,cstat
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for opening a file for array i/o.
!
! must call zaiost before first call to zaiopf.
! see also 'zaiopn' and 'zaiope'.
!
! 2) the filename is taken from 'cfile'.
!
! array i/o is mpi-2 i/o.
!
! 3) iaunit+uaoff is the i/o unit used for arrays. array i/o might not
! use fortran i/o units, but, for compatability, assume that
! iaunit+uaoff refers to a fortran i/o unit anyway.
! cstat indicates the file type, it can be 'scratch', 'old', or
! 'new'.
! all i/o to iaunit must be performed by zaiord and zaiowr.
! arrays passed to these routines must conform to 'h'.
! the file should be closed using zaiocl.
!*
!**********
!
! --- spval = data void marker, 2^100 or about 1.2676506e30
real*4 spval
parameter (spval=2.0**100)
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
!
integer(kind=mpi_offset_kind) disp
integer iamode,iahint
logical lphint
#if defined(TIMER)
!
call xctmr0(16)
#endif
!
! test file state.
!
if (iarec(iaunit).ne.-1) then
write(lp,9000) iaunit
call xcstop('(zaiopf)')
stop '(zaiopf)'
endif
!
iarec(iaunit) = 0
!
! --- I/O from first processor in each row.
!
if (mproc.eq.mp_1st) then
!
! if (mnproc.eq.1) then
! write(lp,*) 'zaiopf - iaunit = ',iaunit
! call flush(lp)
! endif
!
! open file.
!
if (cstat.eq.'OLD' .or. &
cstat.eq.'old' ) then
iamode = MPI_MODE_RDONLY + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiord !see zaiost
file_count_zaiord = file_count_zaiord + 1
lphint = file_count_zaiord .eq. 1
elseif (cstat.eq.'NEW' .or. &
cstat.eq.'new' ) then
iamode = MPI_MODE_WRONLY + &
MPI_MODE_CREATE + &
MPI_MODE_EXCL + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiowr !see zaiost
file_count_zaiowr = file_count_zaiowr + 1
lphint = file_count_zaiowr .eq. 1
else !scratch file
iamode = MPI_MODE_RDWR + &
MPI_MODE_DELETE_ON_CLOSE + &
MPI_MODE_UNIQUE_OPEN
iahint = file_info_zaiowr !see zaiost
file_count_zaiowr = file_count_zaiowr + 1
lphint = .true.
endif
call mpi_file_open(group_1st_in_row, &
trim(cfile), &
iamode, &
iahint, &
iahand(iaunit), &
mpierr)
if (mpierr.ne.0) then
write(lp,9100) iaunit,trim(cfile)
write(lp,*) 'mpi_file_open - mpierr = ',mpierr
call flush(lp)
call xchalt('(zaiopf)')
stop '(zaiopf)'
endif !mpierr
disp = 0
call mpi_file_set_view(iahand(iaunit), &
disp, &
MTYPE4, &
MTYPE4, &
"native", & !1st convert to big-endian if necessary
iahint, &
mpierr)
if (mpierr.ne.0) then
write(lp,9100) iaunit,trim(cfile)
write(lp,*) 'mpi_file_set_view - mpierr = ',mpierr
call flush(lp)
call xchalt('(zaiopf)')
stop '(zaiopf)'
endif !mpierr
if (lphint .and. mnproc.eq.1) then
call zaio_hints(iahand(iaunit))
endif
!
endif ! I/O from first processor in each row
call xcsync(no_flush)
#if defined(TIMER)
!
call xctmr1(16)
#endif
return
!
9000 format(/ /10x,'error in zaiopf - array I/O unit ', &
i3,' is not marked as available.'/ /)
9100 format(/ /10x,'error in zaiopf - can''t open unit ',i3, &
', for array I/O.' / &
10x,'cfile = ',a/ /)
end subroutine zaiopf
#if defined(HPEI)
subroutine zaio_hints(file_handle)
implicit none
!
integer, intent(in) :: file_handle
!
!**********
!*
! 1) prints current hints.
!
! 2) dummy version for HPE with Intel MPI via mpt perfboost
!*
!**********
!
write(6,"(/a)") 'zaio_hints:'
write(6,"(/a)") ' SKIPPED'
write(6,*)
return
end subroutine zaio_hints
#else
subroutine zaio_hints(file_handle)
implicit none
!
integer, intent(in) :: file_handle
!
!**********
!*
! 1) prints current hints.
!*
!**********
!
include 'mpif.h'
!
character(mpi_max_info_key) key
character(mpi_max_info_val) value
!
logical flag
integer hints,i,mpierr,nkeys
!
call MPI_File_get_info(file_handle, hints, mpierr)
call MPI_Info_get_nkeys(hints, nkeys, mpierr)
!
write(6,"(/a)") 'zaio_hints:'
do i= 0,nkeys-1
call MPI_Info_get_nthkey(hints, i, key, mpierr)
call MPI_Info_get(hints, key, &
mpi_max_info_val, value, flag, mpierr)
write(6,"(4a)") &
' key=',trim(key), &
' value=',trim(value)
enddo
write(6,*)
return
end subroutine zaio_hints
#endif
subroutine zaiopi(lopen, iaunit)
implicit none
!
logical, intent(out) :: lopen
integer, intent(in) :: iaunit
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) is an array i/o unit open?
!
! 2) must call zaiost before first call to zaiopi.
!*
!**********
!
lopen = iarec(iaunit).ne.-1
return
end subroutine zaiopi
subroutine zaiost
implicit none
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for initializing array i/o.
!
! 2) see also zaiopn, zaiord, zaiowr, and zaiocl.
!*
!**********
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
!
integer iline,ibuf
common/czgetc/ iline(81,0:1),ibuf
save /czgetc/
!
integer i
character(mpi_max_info_val) value
!
! mpi-2 hints for array i/o
!
file_count_zaiord = 0
file_count_zaiowr = 0
call mpi_info_create(file_info_zaiord, &
mpierr)
call mpi_info_create(file_info_zaiowr, &
mpierr)
#if defined(AIX)
call mpi_info_set(file_info_zaiord, &
'IBM_largeblock_io', & !read on calling task
'true', &
mpierr)
write(value,'(i10)') (((itdm*jtdm+4095)/4096)*4096)*4
call mpi_info_set(file_info_zaiowr, &
'IBM_io_buffer_size', &
trim(value), & !write from a single task
mpierr)
#else
call mpi_info_free(file_info_zaiord, & !set to mpi_info_null
mpierr)
call mpi_info_free(file_info_zaiowr, & !set to mpi_info_null
mpierr)
#endif
!
if (mnproc.eq.1) then
write(lp,'(/a/)') &
'zaiost - Array I/O is MPI-2 I/O from one task per row'
endif
!
do i= 1,999
iarec(i) = -1
enddo
!
ibuf = 0
#if defined(RELO)
!
! --- n2drec = size of output 2-d array, multiple of 4096
n2drec = ((itdm*jtdm+4095)/4096)*4096
!
allocate( wminy(jdm),wmaxy(jdm),htmp(idm*jdm) )
call mem_stat_add( (2*jdm+idm*jdm)/2 ) !real*4, so /2
!
if (mproc.eq.mp_1st) then
if (nproc.ne.jpr) then
allocate( w(itdm*jj) )
call mem_stat_add( (itdm*jj)/2 ) !real*4, so /2
else
allocate( w(itdm*jj+n2drec-itdm*jtdm) )
call mem_stat_add( (itdm*jj+n2drec-itdm*jtdm)/2 ) !real*4, so /2
endif
else
allocate( w(1) )
endif
#else
if (mproc.eq.mp_1st) then
if (nproc.ne.jpr) then
allocate( w(itdm*jj) )
else
allocate( w(itdm*jj+n2drec-itdm*jtdm) )
endif
else
allocate( w(1) )
endif
#endif
#if defined(TIMER)
!
! initialize timers.
!
call xctmrn(16,'zaio**')
call xctmrn(17,'zaiord')
call xctmrn(18,'zaiowr')
#endif
return
end subroutine zaiost
subroutine zaiocl(iaunit)
implicit none
!
integer, intent(in) :: iaunit
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for array i/o file closing.
!
! must call zaiopn for this array unit before calling zaiocl.
!
! 2) array i/o is mpi-2 i/o.
!*
!**********
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
#if defined(TIMER)
!
call xctmr0(16)
#endif
!
if (iarec(iaunit).lt.0) then
write(lp,9000) iaunit
call xcstop('(zaiocl)')
stop '(zaiocl)'
endif
!
iarec(iaunit) = -1
!
! --- I/O from first processor in each row
!
if (mproc.eq.mp_1st) then
!
! if (mnproc.eq.1) then
! write(lp,*) 'zaiocl - iaunit = ',iaunit
! call flush(lp)
! endif
!
call mpi_file_close(iahand(iaunit),mpierr)
!
endif ! I/O from first processor in each row
call xcsync(no_flush)
#if defined(TIMER)
!
call xctmr1(16)
#endif
return
!
9000 format(/ /10x,'error in zaiocl - array I/O unit ', &
i3,' is not marked as open.'/ /)
end subroutine zaiocl
subroutine zaiofl(iaunit)
implicit none
!
integer, intent(in) :: iaunit
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for array i/o buffer flushing.
!
! must call zaiopn for this array unit before calling zaiocl.
!
! 2) array i/o is mpi-2 i/o.
!*
!**********
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
#if defined(TIMER)
!
call xctmr0(16)
#endif
!
if (iarec(iaunit).lt.0) then
write(lp,9000) iaunit
call xcstop('(zaiofl)')
stop '(zaiofl)'
endif
!
! --- I/O from first processor in each row
!
if (mproc.eq.mp_1st) then
call mpi_file_sync(iahand(iaunit),mpierr)
endif ! I/O from first processor in each row
call xcsync(no_flush)
#if defined(TIMER)
!
call xctmr1(16)
#endif
return
!
9000 format(/ /10x,'error in zaiofl - array I/O unit ', &
i3,' is not marked as open.'/ /)
end subroutine zaiofl
subroutine zaioiq(iaunit, irec)
implicit none
!
integer, intent(in) :: iaunit
integer, intent(out) :: irec
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for array i/o inquiry.
!
! 2) returns the number of records processed, or -1 for a closed file.
!*
!**********
!
irec = iarec(iaunit)
return
end subroutine zaioiq
subroutine zaiorw(iaunit)
implicit none
!
integer, intent(in) :: iaunit
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for array i/o file rewinding.
!
! must call zaiopn for this array unit before calling zaiocl.
!
! 2) array i/o is mpi-2 i/o.
!*
!**********
#if defined(TIMER)
!
call xctmr0(16)
#endif
!
if (iarec(iaunit).lt.0) then
write(lp,9000) iaunit
call xcstop('(zaiorw)')
stop '(zaiorw)'
endif
!
iarec(iaunit) = 0
!
! if (mnproc.eq.1) then
! write(lp,*) 'zaiorw - iaunit,rec = ',iaunit,iarec(iaunit)
! call flush(lp)
! endif
call xcsync(no_flush)
#if defined(TIMER)
!
call xctmr1(16)
#endif
return
!
9000 format(/ /10x,'error in zaiorw - array I/O unit ', &
i3,' is not marked as open.'/ /)
end subroutine zaiorw
subroutine zaiord3(h, l, mask,lmask, hmin,hmax, iaunit)
implicit none
!
logical, intent(in) :: lmask
integer, intent(in) :: l,iaunit
integer, dimension (1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
intent(in) :: mask
#if defined(REAL4)
real*4, intent(out) :: hmin(l),hmax(l)
real*4, dimension (1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,l), &
intent(out) :: h
#else
real, intent(out) :: hmin(l),hmax(l)
real, dimension (1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,l), &
intent(out) :: h
#endif
!
!**********
!*
! 1) machine specific routine for 3-d array reading.
!
! must call zaiopn for this array unit before calling zaiord.
!
! 2) array i/o is mpi-2 i/o.
!
! 3) iaunit+uaoff is the i/o unit used for arrays. array i/o might not
! use fortran i/o units, but, for compatability, assume that
! iaunit+uaoff refers to a fortran i/o unit anyway.
! the array, 'h', must conform to that passed in the associated
! call to zaiopn.
!
! 4) hmin,hmax are returned as the minimum and maximum value in the
! array, ignoring array elements set to 2.0**100.
! if lmask==.true. the range is calculated only where mask.ne.0,
! with all other values unchanged in h on exit. It is then an
! error if mask.ne.0 anywhere the input is 2.0**100.
!*
!**********
!
! this version just calls zaiord l times.
!
integer k
!
do k= 1,l
call zaiord(h(1-nbdy,1-nbdy,k), mask,lmask, &
hmin(k),hmax(k), iaunit)
enddo
!
return
end subroutine zaiord3
subroutine zaiord(h, mask,lmask, hmin,hmax, iaunit)
implicit none
!
logical, intent(in) :: lmask
integer, intent(in) :: iaunit
integer, dimension (1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
intent(in) :: mask
#if defined(REAL4)
real*4, intent(out) :: hmin,hmax
real*4, dimension (1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
intent(out) :: h
#else
real, intent(out) :: hmin,hmax
real, dimension (1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
intent(out) :: h
#endif
!
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
integer iahand
common/cziox2/ iahand(999)
save /cziox2/
!
!**********
!*
! 1) machine specific routine for array reading.
!
! must call zaiopn for this array unit before calling zaiord.
!
! 2) array i/o is mpi-2 i/o.
!
! 3) iaunit+uaoff is the i/o unit used for arrays. array i/o might not
! use fortran i/o units, but, for compatability, assume that
! iaunit+uaoff refers to a fortran i/o unit anyway.
! the array, 'h', must conform to that passed in the associated
! call to zaiopn.
!
! 4) hmin,hmax are returned as the minimum and maximum value in the
! array, ignoring array elements set to 2.0**100.
! if lmask==.true. the range is calculated only where mask.ne.0,
! with all other values unchanged in h on exit. It is then an
! error if mask.ne.0 anywhere the input is 2.0**100.
!*
!**********
!
! --- spval = data void marker, 2^100 or about 1.2676506e30
! --- n2drec = size of output 2-d array, multiple of 4096
real*4 spval
parameter (spval=2.0**100)
!
include 'mpif.h'
integer mpierr,mpireq,mpistat
common/xcmpii/ mpierr,mpireq(4), &
mpistat(mpi_status_size,4*iqr)
save /xcmpii/
!
integer(kind=mpi_offset_kind) disp
integer i,j
real*4 wmin,wmax
real rmin(1),rmax(1)