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C


	subroutine SCANMIN_MASK_JP2@(result,source,stop,dim,mask,sext,blkcnt)
*
CDIR$ ID "@(#) libfi/mpp_scan/scanmin_p_2@.f	92.0	10/08/98 14:37:14"
************************************************************************
*
* Purpose:	Find the minimum value of the elements identified by mask,
*		while saving all intermediate results.  This routine handles
*		integer source arrays of rank 2. It returns an array result.
*		This routine is called by the C routine _SCANMIN_JP2.
*
* Arguments:	result	- integer array of rank 2.
*		source	- integer array of rank 2.
*		stop	- logical array of rank 1.
*		dim	- integer scalar: dimension to search along.
*		mask	- logical array of rank 2.
*		sext	- integer array of rank 1:
*			  extents of the source array.
*		blkcnt	- integer array of rank 1:
*			  number of blocks for each dimension.
*
* Variables:	hi	- integer scalar: lowest index in each block
*		low	- integer scalar: highext index in each block
*		carryout- carry to be passed to next block.
*		carryin	- carry received from previous block.
*		carry	- working variable to save current value of carry
*		init_val- initial value of carry variable
*		ack	- message acknowledged flag
*		gotit	- set value for acknowledge
*		comin	- carry receipt flag
*		comout	- carry receipt value passed to receiving PE
*		pe_to	- PE to send carry results to
*		pe_from	- PE from whence carry results arrive
*		zero	- the value 0
*		comsize	- size of comm block
*		stop_found - stop found flag
*
* Intrinsic functions called:
*		my_pe()
*		hiidx()
*		lowidx()
*		home()
*
* Documentation:
*		T3D Fortran 90 Array Intrinsics Interface Description
*		T3D Fortran 90 Array Intrinsics Design Description
*
* Author:	Kenneth Bussart
*		System Libraries Section
*		Cray Research, Inc.
*
************************************************************************
	implicit	none
	intrinsic	my_pe, hiidx, lowidx, home
	integer		HUGE_INT
	integer		sext(2)
	integer		blkcnt(2)
	integer		mype
	integer		dim
	integer		source(sext(1),sext(2))
	integer		result(sext(1),sext(2))
	logical		stop(sext(1),sext(2))
	logical		mask(sext(1),sext(2))
	integer		hi(2), low(2)
	integer		pe_to, pe_from
	integer		i, j, p
	integer		i1, j1
	logical		stop_found
	integer		carry, carryin, carryout, init_val
	integer		tcarry
	integer		ack, gotit, zero
	integer		comin, comout, comsize
*
	integer		FUNC, arg1, arg2
*
	common		/inint@/ carryin, comin
	common		/outint@/ carryout, comout
*
cdir$	parallel_only
cdir$	unknown_shared	source, stop, mask, result
*
	FUNC (arg1,arg2) = min (arg1,arg2)
*
	ack = 0
	gotit = 1
	zero = 0
	comsize = 1
	comout = 1
	comin = 0
	init_val = HUGE_INT()
cdir$	barrier
*
	if (dim .eq. 0) then
	    include "segscan_p2_dim0_mask.fh"
	else if (dim .eq. 1) then
	    include "segscan_p2_dim1_mask.fh"
	else
	    include "segscan_p2_dim2_mask.fh"
	endif
*
	return
	end


	subroutine SCANMIN_NOMASK_JP2@(result,source,stop,dim,sext,blkcnt)
*
************************************************************************
*
* Purpose:	Find the minimum value of the elements in the array section,
*		while saving all intermediate results.  This routine handles
*		integer source arrays of rank 2.  It returns an array result.
*		This routine is called by the C routine _SCANMIN_JP2.
*
* Arguments:	result	- integer array of rank 2.
*		source	- integer array of rank 2.
*		stop	- logical array of rank 1.
*		dim	- integer scalar: dimension to search along.
*		sext	- integer array of rank 1:
*			  extents of the source array.
*		blkcnt	- integer array of rank 1:
*			  number of blocks for each dimension.
*
* Variables:	hi	- integer scalar: lowest index in each block
*		low	- integer scalar: highext index in each block
*		carryout- carry to be passed to next block.
*		carryin	- carry received from previous block.
*		carry	- working variable to save current value of carry
*		init_val- initial value of carry variable
*		ack	- message acknowledged flag
*		gotit	- set value for acknowledge
*		comin	- carry receipt flag
*		comout	- carry receipt value passed to receiving PE
*		pe_to	- PE to send carry results to
*		pe_from	- PE from whence carry results arrive
*		zero	- the value 0
*		comsize	- size of comm block
*		stop_found - stop bit set flag
*
* Intrinsic functions called:
*		my_pe()
*		hiidx()
*		lowidx()
*		home()
*
* Documentation:
*		T3D Fortran 90 Array Intrinsics Interface Description
*		T3D Fortran 90 Array Intrinsics Design Description
*
* Author:	Kenneth Bussart
*		System Libraries Section
*		Cray Research, Inc.
*
************************************************************************
	implicit	none
	intrinsic	my_pe, hiidx, lowidx, home
	integer		HUGE_INT
	integer		sext(2)
	integer		blkcnt(2)
	integer		mype
	integer		dim
	integer		source(sext(1),sext(2))
	integer		result(sext(1),sext(2))
	logical		stop(sext(1),sext(2))
	integer		hi(2), low(2)
	integer		pe_to, pe_from
	integer		i, j, p
	integer		i1, j1
	logical		stop_found
	integer		carry, carryin, carryout, init_val
	integer		tcarry
	integer		ack, gotit, zero
	integer		comin, comout, comsize
*
	integer		FUNC, arg1, arg2
*
	common		/inint@/ carryin, comin
	common		/outint@/ carryout, comout
*
cdir$	parallel_only
cdir$	unknown_shared	source, stop, result
*
	FUNC (arg1,arg2) = min (arg1,arg2)
*
	ack = 0
	gotit = 1
	zero = 0
	comsize = 1
	comout = 1
	comin = 0
	init_val = HUGE_INT()
cdir$	barrier
*
	if (dim .eq. 0) then
	    include "segscan_p2_dim0_nomask.fh"
	else if (dim .eq. 1) then
	    include "segscan_p2_dim1_nomask.fh"
	else
	    include "segscan_p2_dim2_nomask.fh"
	endif
*
	return
	end


	subroutine SCANMIN_MASK_SP2@(result,source,stop,dim,mask,sext,blkcnt)
*
************************************************************************
*
* Purpose:	Find the minimum value of the elements identified by mask,
*		while saving all intermediate results.  This routine handles
*		real source arrays of rank 2. It returns an array result.
*		This routine is called by the C routine _SCANMIN_SP2.
*
* Arguments:	result	- real array of rank 2.
*		source	- real array of rank 2.
*		stop	- logical array of rank 1.
*		dim	- integer scalar: dimension to search along.
*		mask	- logical array of rank 2.
*		sext	- integer array of rank 1:
*			  extents of the source array.
*		blkcnt	- integer array of rank 1:
*			  number of blocks for each dimension.
*
* Variables:	hi	- integer scalar: lowest index in each block
*		low	- integer scalar: highext index in each block
*		carryout- carry to be passed to next block.
*		carryin	- carry received from previous block.
*		carry	- working variable to save current value of carry
*		init_val- initial value of carry variable
*		ack	- message acknowledged flag
*		gotit	- set value for acknowledge
*		comin	- carry receipt flag
*		comout	- carry receipt value passed to receiving PE
*		pe_to	- PE to send carry results to
*		pe_from	- PE from whence carry results arrive
*		zero	- the value 0
*		comsize	- size of comm block
*		stop_found - stop found flag
*
* Intrinsic functions called:
*		my_pe()
*		hiidx()
*		lowidx()
*		home()
*
* Documentation:
*		T3D Fortran 90 Array Intrinsics Interface Description
*		T3D Fortran 90 Array Intrinsics Design Description
*
* Author:	Kenneth Bussart
*		System Libraries Section
*		Cray Research, Inc.
*
************************************************************************
	implicit	none
	intrinsic	my_pe, hiidx, lowidx, home
	real		HUGE_FLT
	integer		sext(2)
	integer		blkcnt(2)
	integer		mype
	integer		dim
	real		source(sext(1),sext(2))
	real		result(sext(1),sext(2))
	logical		stop(sext(1),sext(2))
	logical		mask(sext(1),sext(2))
	integer		hi(2), low(2)
	integer		pe_to, pe_from
	integer		i, j, p
	integer		i1, j1
	logical		stop_found
	real		carry, carryin, carryout, init_val
	real		tcarry
	integer		ack, gotit, zero
	integer		comin, comout, comsize
*
	real		FUNC, arg1, arg2
*
	common		/inflt@/ carryin, comin
	common		/outflt@/ carryout, comout
*
cdir$	parallel_only
cdir$	unknown_shared	source, stop, mask, result
*
	FUNC (arg1,arg2) = min (arg1,arg2)
*
	ack = 0
	gotit = 1
	zero = 0
	comsize = 1
	comout = 1
	comin = 0
	init_val = HUGE_FLT()
cdir$	barrier
*
	if (dim .eq. 0) then
	    include "segscan_p2_dim0_mask.fh"
	else if (dim .eq. 1) then
	    include "segscan_p2_dim1_mask.fh"
	else
	    include "segscan_p2_dim2_mask.fh"
	endif
*
	return
	end


	subroutine SCANMIN_NOMASK_SP2@(result,source,stop,dim,sext,blkcnt)
*
************************************************************************
*
* Purpose:	Find the minimum value of the elements in the array section,
*		while saving all intermediate results.  This routine handles
*		real source arrays of rank 2.  It returns an array result.
*		This routine is called by the C routine _SCANMIN_SP2.
*
* Arguments:	result	- real array of rank 2.
*		source	- real array of rank 2.
*		stop	- logical array of rank 1.
*		dim	- integer scalar: dimension to search along.
*		sext	- integer array of rank 1:
*			  extents of the source array.
*		blkcnt	- integer array of rank 1:
*			  number of blocks for each dimension.
*
* Variables:	hi	- integer scalar: lowest index in each block
*		low	- integer scalar: highext index in each block
*		carryout- carry to be passed to next block.
*		carryin	- carry received from previous block.
*		carry	- working variable to save current value of carry
*		init_val- initial value of carry variable
*		ack	- message acknowledged flag
*		gotit	- set value for acknowledge
*		comin	- carry receipt flag
*		comout	- carry receipt value passed to receiving PE
*		pe_to	- PE to send carry results to
*		pe_from	- PE from whence carry results arrive
*		zero	- the value 0
*		comsize	- size of comm block
*		stop_found - stop bit set flag
*
* Intrinsic functions called:
*		my_pe()
*		hiidx()
*		lowidx()
*		home()
*
* Documentation:
*		T3D Fortran 90 Array Intrinsics Interface Description
*		T3D Fortran 90 Array Intrinsics Design Description
*
* Author:	Kenneth Bussart
*		System Libraries Section
*		Cray Research, Inc.
*
************************************************************************
	implicit	none
	intrinsic	my_pe, hiidx, lowidx, home
	real		HUGE_FLT
	integer		sext(2)
	integer		blkcnt(2)
	integer		mype
	integer		dim
	real		source(sext(1),sext(2))
	real		result(sext(1),sext(2))
	logical		stop(sext(1),sext(2))
	integer		hi(2), low(2)
	integer		pe_to, pe_from
	integer		i, j, p
	integer		i1, j1
	logical		stop_found
	real		carry, carryin, carryout, init_val
	real		tcarry
	integer		ack, gotit, zero
	integer		comin, comout, comsize
*
	real		FUNC, arg1, arg2
*
	common		/inflt@/ carryin, comin
	common		/outflt@/ carryout, comout
*
cdir$	parallel_only
cdir$	unknown_shared	source, stop, result
*
	FUNC (arg1,arg2) = min (arg1,arg2)
*
	ack = 0
	gotit = 1
	zero = 0
	comsize = 1
	comout = 1
	comin = 0
	init_val = HUGE_FLT()
cdir$	barrier
*
	if (dim .eq. 0) then
	    include "segscan_p2_dim0_nomask.fh"
	else if (dim .eq. 1) then
	    include "segscan_p2_dim1_nomask.fh"
	else
	    include "segscan_p2_dim2_nomask.fh"
	endif
*
	return
	end
