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*DECK PIJKST
SUBROUTINE PIJKST(IMPX,NREGIO,PIJSYM,PIJKS)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Evaluate PIJK*=PIJ**(-1)*PIJK.
*
*Copyright:
* Copyright (C) 1994 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): G. Marleau, I. Petrovic
*
*Parameters: input
* IMPX print/check flag.
* NREGIO number of regions considered.
* PIJSYM group condensed reduce/symmetric PIJ.
*
*Parameters: output
* PIJKS group condensed PIJK*.
*
*-----------------------------------------------------------------------
*
IMPLICIT NONE
*----
* PARAMETERS
*----
INTEGER IUNOUT
PARAMETER (IUNOUT=6)
*----
* INTERNAL FUNCTIONS
*----
INTEGER INDPOS
*----
* LOCAL VARIABLES
*----
INTEGER IMPX,NREGIO,IDIR,I,J,INDPIJ,IERROR
REAL PIJSYM(*),PIJKS(NREGIO,NREGIO,3)
DOUBLE PRECISION, ALLOCATABLE, DIMENSION(:,:) :: PIJSCT
*
*----- INTRINSIC FUNCTION FOR POSITION IN CONDENSE PIJ MATRIX
*
INDPOS(I,J)=MAX(I,J)*(MAX(I,J)-1)/2+MIN(I,J)
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(PIJSCT(NREGIO,2*NREGIO))
*----
* FILL SYSTEM MATRIX WITH PIJ
*----
DO 100 IDIR=1,3
DO 110 I=1,NREGIO
DO 120 J=1,NREGIO
INDPIJ=INDPOS(I,J)
PIJSCT(I,J)=DBLE(PIJSYM(INDPIJ))
PIJSCT(J,NREGIO+I)=DBLE(PIJKS(I,J,IDIR))
120 CONTINUE
110 CONTINUE
CALL ALSBD(NREGIO,NREGIO,PIJSCT,IERROR,NREGIO)
IF(IERROR.NE.0) CALL XABORT('PIJKST: SINGULAR MATRIX.')
DO 130 I=1,NREGIO
DO 140 J=1,NREGIO
PIJKS(I,J,IDIR)=REAL(PIJSCT(I,NREGIO+J))
140 CONTINUE
130 CONTINUE
IF (IMPX.GE.8) THEN
WRITE(IUNOUT,6000) (J,J=1,NREGIO)
DO 150 I=1,NREGIO
WRITE(IUNOUT,6001) I,(PIJKS(I,J,IDIR),J=1,NREGIO)
150 CONTINUE
WRITE(IUNOUT,'(//)')
ENDIF
100 CONTINUE
*----
* SCRATCH STORAGE DEALLOCATION
*----
DEALLOCATE(PIJSCT)
RETURN
*
6000 FORMAT (//'COLLISION PROBAB. MATRIX PIJK*=((PIJ)**(-1))*PIJK:'//
1 (11X,2HJ=,I4,:,5X,2HJ=,I4,:,5X,2HJ=,I4,:,5X,2HJ=,I4,:,5X,2HJ=,
2 I4,:,5X,2HJ=,I4,:,5X,2HJ=,I4,:,5X,2HJ=,I4,:,5X,2HJ=,I4,:,5X,
3 2HJ=,I4,:,5X,2HJ=,I4))
6001 FORMAT (3H I=,I4,2H: ,1P,11E11.3/(9X,11E11.3))
END
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