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