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mod_za_mp1.h+98
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mod_za_mp1.h+98
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c
c-----------------------------------------------------------------------
c
c machine dependent I/O routines.
c message passing version, with all I/O from first processor.
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)
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/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
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
c --- n2drec = size of output 2-d array, multiple of 4096
real*4 spval
parameter (spval=2.0**100)
c
integer ios,nrecl
character cfile*256,cenv*7
character cact*9
#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 only
c
if (mnproc.eq.1) then
*
* write(lp,*) 'zaiopn - iaunit = ',iaunit
* call flush(lp)
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 dummy I/O?
c
if (cfile.eq.'/dev/null' .or.
& cfile.eq.'/dev/zero' ) then
iarec(iaunit) = -99
call xcsync(no_flush)
#if defined(TIMER)
call xctmr1(16)
#endif
return
endif
c
c open file.
c
inquire(iolength=nrecl) w
c
if (cstat.eq.'OLD' .or.
& cstat.eq.'old' ) then
cact = 'READ'
elseif (cstat.eq.'NEW' .or.
& cstat.eq.'new' ) then
cact = 'WRITE'
else
cact = 'READWRITE'
endif
#if defined(X1)
call asnunit(iaunit+uaoff,'-F event,cachea:4096:4:2 -B on',ios)
if (ios.ne.0) then
write(lp,9050) iaunit
write(lp,*) 'ios = ',ios
call flush(lp)
call xchalt('(zaiopn)')
stop '(zaiopn)'
endif !ios
#endif
#if defined(YMP)
if (mod(nrecl,16384).eq.0 .and. nrecl.gt.16384*4) then
call asnunit(iaunit+uaoff,'-F syscall -N ieee',ios)
else
call asnunit(iaunit+uaoff,'-F cachea:8:16:2 -N ieee',ios)
endif
if (ios.ne.0) then
write(lp,9050) iaunit
write(lp,*) 'ios = ',ios
call flush(lp)
call xchalt('(zaiopn)')
stop '(zaiopn)'
endif !ios
#endif
if (cstat.eq.'scratch' .or.
& cstat.eq.'SCRATCH' ) then
open(unit=iaunit+uaoff,
& form='unformatted', status='scratch',
& access='direct', recl=nrecl, action=cact, iostat=ios)
else
open(unit=iaunit+uaoff, file=cfile,
& form='unformatted', status=cstat,
& access='direct', recl=nrecl, action=cact, iostat=ios)
endif
if (ios.ne.0) then
write(lp,9100) iaunit
write(lp,*) 'ios = ',ios
call flush(lp)
if (cstat.eq.'scratch' .or.
& cstat.eq.'SCRATCH' ) then
write(6,'(a)') "status='SCRATCH'"
else
write(6,'(3a)') 'FILENAME="',trim(cfile),'"'
endif
call flush(lp)
call xchalt('(zaiopn)')
stop '(zaiopn)'
endif !ios
c
endif ! I/O from first processor only
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.'/ /)
#if defined(YMP) || defined(X1)
9050 format(/ /10x,'error in zaiopn - can''t asnunit ',i3,
& ', for array I/O.'/ /)
#endif
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/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
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
c --- n2drec = size of output 2-d array, multiple of 4096
real*4 spval
parameter (spval=2.0**100)
c
integer ios,nrecl
character cfile*256
character cact*9
#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 only
c
if (mnproc.eq.1) then
*
* write(lp,*) 'zaiope - iaunit = ',iaunit
* call flush(lp)
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 dummy I/O?
c
if (cfile.eq.'/dev/null' .or.
& cfile.eq.'/dev/zero' ) then
iarec(iaunit) = -99
call xcsync(no_flush)
#if defined(TIMER)
call xctmr1(16)
#endif
return
endif
c
c open file.
c
inquire(iolength=nrecl) w
c
if (cstat.eq.'OLD' .or.
& cstat.eq.'old' ) then
cact = 'READ'
elseif (cstat.eq.'NEW' .or.
& cstat.eq.'new' ) then
cact = 'WRITE'
else
cact = 'READWRITE'
endif
c
#if defined(X1)
call asnunit(iaunit+uaoff,'-F event,cachea:4096:4:2 -B on',ios)
if (ios.ne.0) then
write(lp,9050) iaunit,trim(cfile)
write(lp,*) 'ios = ',ios
write(lp,*) 'cenv = ',trim(cenv)
call flush(lp)
call xchalt('(zaiope)')
stop '(zaiope)'
endif !ios
#endif
#if defined(YMP)
if (mod(nrecl,16384).eq.0 .and. nrecl.gt.16384*4) then
call asnunit(iaunit+uaoff,'-F syscall -N ieee',ios)
else
call asnunit(iaunit+uaoff,'-F cachea:8:16:2 -N ieee',ios)
endif
if (ios.ne.0) then
write(lp,9050) iaunit,trim(cfile)
write(lp,*) 'ios = ',ios
write(lp,*) 'cenv = ',trim(cenv)
call flush(lp)
call xchalt('(zaiope)')
stop '(zaiope)'
endif !ios
#endif
open(unit=iaunit+uaoff, file=cfile,
& form='unformatted', status=cstat,
& access='direct', recl=nrecl, action=cact, iostat=ios)
if (ios.ne.0) then
write(lp,9100) iaunit,trim(cfile)
write(lp,*) 'ios = ',ios
write(lp,*) 'cenv = ',trim(cenv)
call flush(lp)
call xchalt('(zaiope)')
stop '(zaiope)'
endif !ios
c
endif ! I/O from first processor only
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.'/ /)
#if defined(YMP) || defined(X1)
9050 format(/ /10x,'error in zaiope - can''t asnunit ',i3,
& ', for array I/O.' /
& 10x,'cfile = ',a/ /)
#endif
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/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
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
c --- n2drec = size of output 2-d array, multiple of 4096
real*4 spval
parameter (spval=2.0**100)
c
integer ios,nrecl
character cact*9
#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 only
c
if (mnproc.eq.1) then
*
* write(lp,*) 'zaiopf - iaunit = ',iaunit
* call flush(lp)
c
c dummy I/O?
c
if (cfile.eq.'/dev/null' .or.
& cfile.eq.'/dev/zero' ) then
iarec(iaunit) = -99
call xcsync(no_flush)
#if defined(TIMER)
call xctmr1(16)
#endif
return
endif
c
c open file.
c
inquire(iolength=nrecl) w
c
if (cstat.eq.'OLD' .or.
& cstat.eq.'old' ) then
cact = 'READ'
elseif (cstat.eq.'NEW' .or.
& cstat.eq.'new' ) then
cact = 'WRITE'
else
cact = 'READWRITE'
endif
c
#if defined(X1)
call asnunit(iaunit+uaoff,'-F event,cachea:4096:4:2 -B on',ios)
if (ios.ne.0) then
write(lp,9050) iaunit,trim(cfile)
write(lp,*) 'ios = ',ios
call flush(lp)
call xchalt('(zaiopf)')
stop '(zaiopf)'
endif !ios
#endif
#if defined(YMP)
if (mod(nrecl,16384).eq.0 .and. nrecl.gt.16384*4) then
call asnunit(iaunit+uaoff,'-F syscall -N ieee',ios)
else
call asnunit(iaunit+uaoff,'-F cachea:8:16:2 -N ieee',ios)
endif
if (ios.ne.0) then
write(lp,9050) iaunit,trim(cfile)
write(lp,*) 'ios = ',ios
call flush(lp)
call xchalt('(zaiopf)')
stop '(zaiopf)'
endif !ios
#endif
open(unit=iaunit+uaoff, file=cfile,
& form='unformatted', status=cstat,
& access='direct', recl=nrecl, action=cact, iostat=ios)
if (ios.ne.0) then
write(lp,9100) iaunit,trim(cfile)
write(lp,*) 'ios = ',ios
call flush(lp)
call xchalt('(zaiopf)')
stop '(zaiopf)'
endif !ios
c
endif ! I/O from first processor only
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.'/ /)
#if defined(YMP) || defined(X1)
9050 format(/ /10x,'error in zaiopf - can''t asnunit ',i3,
& ', for array I/O.' /
& 10x,'cfile = ',a/ /)
#endif
9100 format(/ /10x,'error in zaiopf - can''t open unit ',i3,
& ', for array I/O.' /
& 10x,'cfile = ',a/ /)
end subroutine zaiopf
subroutine zaiopi(lopen, iaunit)
implicit none
c
logical, intent(out) :: lopen
integer, intent(in) :: iaunit
c
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
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/
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
integer i
c
if (mnproc.eq.1) then
write(lp,'(/a/)')
& 'zaiost - Array I/O is Fortran DA I/O from the 1st task'
endif
c
do i= 1,999
iarec(i) = -1
enddo
#if defined(RELO)
c
c --- n2drec = size of output 2-d array, multiple of 4096
n2drec = ((itdm*jtdm+4095)/4096)*4096
c
allocate( w(n2drec),wminy(jtdm),wmaxy(jtdm),htmp(idm*jdm) )
call mem_stat_add( (n2drec+2*jtdm+idm*jdm)/2) !real*4, so /2
#endif
#if defined(TIMER)
c
c initialize timers.
c
call xctmrn(16,'zaio**')
call xctmrn(17,'zaiord')
call xctmrn(18,'zaiowr')
call xctmrn(19,'zaioIO')
#endif
return
end subroutine zaiost
subroutine zaiocl(iaunit)
implicit none
c
integer, intent(in) :: iaunit
c
integer iarec
common/czioxx/ iarec(999)
save /czioxx/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
c*
c**********
c
integer ios
#if defined(TIMER)
c
call xctmr0(16)
#endif
c
if (iarec(iaunit).eq.-1) then
write(lp,9000) iaunit
call xcstop('(zaiocl)')
stop '(zaiocl)'
endif
c
iarec(iaunit) = -1
c
c --- I/O from first processor only
c
if (mnproc.eq.1) then
*
* write(lp,*) 'zaiocl - iaunit = ',iaunit
* call flush(lp)
c
if (iarec(iaunit).ne.-99) then !standard I/O
close(unit=iaunit+uaoff, status='keep')
#if defined(T3E) || defined(YMP) || defined(X1)
call asnunit(iaunit+uaoff,'-R',ios)
#endif
endif
c
endif ! I/O from first processor only
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/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
c*
c**********
c
integer irlen
character cfile*256
#if defined(TIMER)
c
call xctmr0(16)
#endif
c
if (iarec(iaunit).eq.-1) then
write(lp,9000) iaunit
call xcstop('(zaiofl)')
stop '(zaiofl)'
endif
c
c --- I/O from first processor only
c
if (mnproc.eq.1) then
c
if (iarec(iaunit).ne.-99) then !standard I/O
inquire(unit=iaunit+uaoff, name=cfile, recl=irlen)
close( unit=iaunit+uaoff, status='keep')
open( unit=iaunit+uaoff, file=cfile, form='unformatted',
& access='direct', recl=irlen)
endif
c
endif ! I/O from first processor only
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/
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/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
c*
c**********
#if defined(TIMER)
c
call xctmr0(16)
#endif
c
if (iarec(iaunit).eq.-1) then
write(lp,9000) iaunit
call xcstop('(zaiorw)')
stop '(zaiorw)'
endif
c
if (iarec(iaunit).ne.-99) then !standard I/O
iarec(iaunit) = 0
endif
c
c --- I/O from first processor only
c
if (mnproc.eq.1) then
*
* write(lp,*) 'zaiorw - iaunit,rec = ',iaunit,iarec(iaunit)
* call flush(lp)
c
endif ! I/O from first processor only
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
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/
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 fortran real*4 direct access i/o to unit iaunit+uaoff.
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 5) Optimized by Dan Moore, Planning Systems Inc., August 2005.
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
character cfile*256
integer ios, i,j
real*4 wmin,wmax
real rmin(1),rmax(1)
#if defined(TIMER)
c
call xctmr0(17)
#endif
c
if (iarec(iaunit).eq.-1) then
write(lp,9000) iaunit
call xcstop('(zaiord)')
stop '(zaiord)'
endif
c
if (iarec(iaunit).ne.-99) then !standard I/O
iarec(iaunit) = iarec(iaunit) + 1
endif
c
wmin = spval
wmax = -spval
c
c
c --- I/O from first processor only
c
if (mnproc.eq.1) then
*
* write(lp,*)'In initial proc 1 section'
* 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)
c
if (iarec(iaunit).eq.-99) then !dummy I/O
w(1:n2drec) = 0.0
else !standard I/O
call zaiordd(w,n2drec, iaunit+uaoff,iarec(iaunit),ios)
if (ios.ne.0) then
write(lp,9100) iarec(iaunit),iaunit
write(lp,*) 'ios = ',ios
call flush(lp)
cfile = ' '
inquire(unit=iaunit+uaoff,name=cfile)
write(lp,'(3a)') 'FILENAME="',trim(cfile),'"'
call flush(lp)
call xchalt('(zaiord)')
stop '(zaiord)'
endif !ios
endif ! dummy I/O
* write(lp,*)'I/O on proc 1 finished?'
* write(lp,*)'lmask = ',lmask
c
if (.not.lmask)then
c Get global min and max on first processor.
c must be done here because tiles need not cover the full domain.
!$OMP PARALLEL DO PRIVATE(j,i)
!$OMP& SCHEDULE(STATIC,jblk)
do j= 1,jtdm
#if defined(ENDIAN_IO)
call zaio_endian(w(1+(j-1)*itdm),itdm) !swap to big-endian
#endif
wminy(j) = spval
wmaxy(j) = -spval
do i= 1,itdm
if (w(i+(j-1)*itdm).ne.spval) then
wminy(j) = min( wminy(j), w(i+(j-1)*itdm) )
wmaxy(j) = max( wmaxy(j), w(i+(j-1)*itdm) )
endif
enddo !i
enddo !j
wmin = minval(wminy(1:jtdm))
wmax = maxval(wmaxy(1:jtdm))
endif !Not Lmask (global min,max on processor #1)
c
endif !end I/O from first processor only
c
c --- put field from 1st processor to all tiles
call xcaput4(w,htmp, 1) !w cast to a 2-d array
c
c --- Each processor loads h from htmp (where mask = 1)
c --- Each processor does local min max if lmask is true
c
if (lmask) then
!$OMP PARALLEL DO PRIVATE(j,i)
!$OMP& SCHEDULE(STATIC,jblk)
do j= 1,jj
#if defined(ENDIAN_IO)
call zaio_endian(htmp(1+(j-1)*ii),ii) !swap to big-endian
#endif
wminy(j) = spval
wmaxy(j) = -spval
do i= 1,ii
if (mask(i,j).ne.0) then
h(i,j) = htmp(i+(j-1)*ii)
wminy(j) = min( wminy(j), htmp(i+(j-1)*ii) )
wmaxy(j) = max( wmaxy(j), htmp(i+(j-1)*ii) )
endif
enddo !i
enddo !j
wmin = minval(wminy(1:jj))
wmax = maxval(wmaxy(1:jj))
else
!$OMP PARALLEL DO PRIVATE(j,i)
!$OMP& SCHEDULE(STATIC,jblk)
do j= 1,jj
do i= 1,ii
h(i,j) = htmp(i+(j-1)*ii)
enddo !i
enddo !j
endif !lmask:else
c
c --- Min/Max broadcast/gather
c
rmin(1) = wmin
rmax(1) = wmax
call xcminr(rmin)
call xcmaxr(rmax)
hmin = rmin(1)
hmax = rmax(1)
c
if (lmask .and. hmax.eq.spval) then
if (mnproc.eq.1) then
write(lp,9200) iarec(iaunit),iaunit
call flush(lp)
cfile = ' '