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*DECK FLDREL
SUBROUTINE FLDREL(RELAX,IPLIST,NGRP,NUN,ARRAY)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Relaxation procedure for flux distribution information.
*
*Copyright:
* Copyright (C) 2014 Ecole Polytechnique de Montreal.
*
*Author(s): A. Hebert
*
*Parameters: input
* RELAX relaxation factor
* IPLIST pointer to object information.
* NGRP number of energy groups
* NUN number of unknowns per energy group
* ARRAY real record to relax
*
*Parameters: output
* ARRAY real record after relaxation
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) IPLIST
INTEGER NGRP,NUN
REAL RELAX,ARRAY(NUN,NGRP)
*----
* LOCAL VARIABLES
*----
INTEGER IGR,IUN,ILONG,ITYLCM
REAL, ALLOCATABLE, DIMENSION(:) :: ARRAY0
*
IF(RELAX.EQ.1.0) RETURN
ALLOCATE(ARRAY0(NUN))
DO IGR=1,NGRP
CALL LCMLEL(IPLIST,IGR,ILONG,ITYLCM)
IF(ILONG.NE.NUN) CALL XABORT('FLDREL: UNABLE TO RELAX.')
CALL LCMGDL(IPLIST,IGR,ARRAY0)
DO IUN=1,NUN
ARRAY(IUN,IGR)=RELAX*ARRAY(IUN,IGR)+(1.0-RELAX)*ARRAY0(IUN)
ENDDO
ENDDO
DEALLOCATE(ARRAY0)
RETURN
END
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