From 7dfcc480ba1e19bd3232349fc733caef94034292 Mon Sep 17 00:00:00 2001
From: stainer_t <thomas.stainer@oecd-nea.org>
Date: Mon, 8 Sep 2025 13:48:49 +0200
Subject: Initial commit from Polytechnique Montreal

---
 Dragon/src/SAPFLU.f | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 Dragon/src/SAPFLU.f

(limited to 'Dragon/src/SAPFLU.f')

diff --git a/Dragon/src/SAPFLU.f b/Dragon/src/SAPFLU.f
new file mode 100644
index 0000000..c5a3363
--- /dev/null
+++ b/Dragon/src/SAPFLU.f
@@ -0,0 +1,88 @@
+*DECK SAPFLU
+      SUBROUTINE SAPFLU(IMPX,NCALS,IPSAP,IPFLUX,IPDEPL,NGA,NRT)
+*
+*-----------------------------------------------------------------------
+*
+*Purpose:
+* To recover the flux of the reference calculation.
+*
+*Copyright:
+* Copyright (C) 2007 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): A. Hebert
+*
+*Parameters: input
+* IMPX    print parameter.
+* NCALS   index of the elementary calculation.
+* IPSAP   pointer to the Saphyb.
+* IPFLUX  pointer to the reference flux (L_FLUX signature).
+* IPDEPL  pointer to the burnup object (L_BURNUP signature).
+* NGA     number of groups in the reference calculation.
+* NRT     number of unknowns per group in the reference calculation.
+*
+*-----------------------------------------------------------------------
+*
+      USE GANLIB
+*----
+*  SUBROUTINE ARGUMENTS
+*----
+      TYPE(C_PTR) IPSAP,IPFLUX,IPDEPL
+      INTEGER IMPX,NCALS,NGA,NRT
+*----
+*  LOCAL VARIABLES
+*----
+      TYPE(C_PTR) JPFLUX
+      REAL BIRRAD(2)
+      CHARACTER TEXT12*12,HSMG*131
+      REAL, ALLOCATABLE, DIMENSION(:,:) :: FLXREF
+*----
+*  SCRATCH STORAGE ALLOCATION
+*----
+      ALLOCATE(FLXREF(NRT,NGA))
+*----
+*  RECOVER THE FLUX NORMATIZATION FACTOR.
+*----
+      IF(C_ASSOCIATED(IPDEPL)) THEN
+         CALL LCMGET(IPDEPL,'BURNUP-IRRAD',BIRRAD)
+         BURN=BIRRAD(1)
+         CALL LCMLEN(IPDEPL,'FLUX-NORM',ILONG,ITYLCM)
+         IF(ILONG.EQ.0) THEN
+            WRITE(HSMG,'(40HSAPFLU: THE ''FLUX-NORM'' RECORD IS NOT SE,
+     1      20HT FOR BURNUP STEP AT,E12.5,14H MW-DAY/TONNE.)') BURN
+            CALL XABORT(HSMG)
+         ENDIF
+         CALL LCMGET(IPDEPL,'FLUX-NORM',FNORM)
+         IF(IMPX.GT.0) WRITE(6,100) FNORM,BURN
+      ELSE
+         FNORM=1.0
+         IF(IMPX.GT.0) WRITE(6,110)
+      ENDIF
+*
+      JPFLUX=LCMGID(IPFLUX,'FLUX')
+      DO 20 IGR=1,NGA
+      CALL LCMGDL(JPFLUX,IGR,FLXREF(1,IGR))
+      DO 10 IRT=1,NRT
+      FLXREF(IRT,IGR)=FLXREF(IRT,IGR)*FNORM*1.0E13
+   10 CONTINUE
+   20 CONTINUE
+*
+      WRITE(TEXT12,'(''calc'',I8)') NCALS
+      CALL LCMSIX(IPSAP,TEXT12,1)
+      CALL LCMSIX(IPSAP,'divers',1)
+      CALL LCMPUT(IPSAP,'FLXREF',NRT*NGA,2,FLXREF)
+      CALL LCMSIX(IPSAP,' ',2)
+      CALL LCMSIX(IPSAP,' ',2)
+*----
+*  SCRATCH STORAGE DEALLOCATION
+*----
+      DEALLOCATE(FLXREF)
+      RETURN
+*
+  100 FORMAT(45H SAPFLU: NORMALIZE THE FLUX WITH THE FACTOR =,1P,E12.5,
+     1 26H TAKEN FROM BURNUP STEP AT,E12.5,14H MW-DAY/TONNE.)
+  110 FORMAT(36H SAPFLU: THE FLUX IS NOT NORMALIZED.)
+      END
-- 
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