diff --git a/src/LIB/MPIvide/mpivide.c b/src/LIB/MPIvide/mpivide.c
index 9c41ffa7c59d0d3a184a0a0b6c6451b325430840..b23e25e5e958b14735b95d36ccdfdd243c868645 100644
--- a/src/LIB/MPIvide/mpivide.c
+++ b/src/LIB/MPIvide/mpivide.c
@@ -24,12 +24,16 @@ MNH_LIC for details. version 1.
 
 /* MPI_INTEGER is defined in mpi.h */
 
+#define MPI_INTEGER8 MPI_LONG_LONG_INT
+
 #ifdef FUJI
 #if MNH_INT == 8 
 #define SIZEINTEGER 8
+#define SIZEINTEGER8 8
 #define SIZELOGICAL 8
 #else
 #define SIZEINTEGER 4
+#define SIZEINTEGER8 8
 #define SIZELOGICAL 4
 #endif
 #if MNH_REALS == 4
@@ -41,6 +45,7 @@ MNH_LIC for details. version 1.
 #endif
 #else
 #define SIZEINTEGER 8 
+#define SIZEINTEGER8 8
 #define SIZEPRECISION 8
 #define SIZE2PRECISION 16
 #endif
@@ -179,6 +184,9 @@ int              *__ierr;
       case MPI_INTEGER:
         size = SIZEINTEGER;
         break;
+      case MPI_INTEGER8:
+        size = SIZEINTEGER8;
+        break;
       case MPI_PRECISION:
         size = SIZEPRECISION;
         break;
diff --git a/src/MNH/flash_geom_elec.f90 b/src/MNH/flash_geom_elec.f90
index b020d112e431c0575520a0dabe65ded245ba0167..530f2d59073526e7b1aaae9bcd63577e73f4ec50 100644
--- a/src/MNH/flash_geom_elec.f90
+++ b/src/MNH/flash_geom_elec.f90
@@ -83,6 +83,7 @@ END MODULE MODI_FLASH_GEOM_ELEC_n
 !!      C. Barthe * LACy * Jan. 2015 : convert trig. pt into lat,lon in ascii file
 !!      J.Escobar : 18/12/2015 : Correction of bug in bound in // for NHALO <>1 
 !!      J.Escobar : 28/03/2018 : Correction of multiple // bug & compiler indepedent mnh_random_number
+!!      J.Escobar : 20/06/2018 : Correction of computation of global index I8VECT
 !!
 !-------------------------------------------------------------------------------
 !
@@ -119,7 +120,6 @@ USE MODD_ELEC_FLASH
 USE MODI_SHUMAN
 USE MODI_TO_ELEC_FIELD_n
 USE MODI_ION_ATTACH_ELEC
-USE MODI_IO_ll
 !
 #ifdef MNH_PGI
 USE MODE_PACK_PGI
@@ -304,7 +304,7 @@ INTEGER :: IFLASH_COUNT, IFLASH_COUNT_GLOB  ! Total number of flashes within the
 REAL,DIMENSION(SIZE(PRT,1),SIZE(PRT,2)) :: ZCELL_NEW
 !
 INTEGER :: ILJ
-INTEGER :: NIMAX_ll, NJMAX_ll    ! dimensions of global domain
+INTEGER :: NIMAX_ll, NJMAX_ll,IIU_ll,IJU_ll    ! dimensions of global domain
 !
 !-------------------------------------------------------------------------------
 !
@@ -323,6 +323,8 @@ IKU = SIZE(PRT,3)
 ! global indexes of the local subdomains origin
 CALL GET_GLOBALDIMS_ll (NIMAX_ll,NJMAX_ll)
 CALL GET_OR_ll('B',IXOR,IYOR)
+IIU_ll = NIMAX_ll + 2*JPHEXT
+IJU_ll = NJMAX_ll + 2*JPHEXT
 !
 !
 !*      1.2     allocations and initializations
@@ -2146,7 +2148,8 @@ DO WHILE (IM .LE. IDELTA_IND .AND. ISTOP .NE. 1)
                  DO JI=IIB,IIE
                     IF (IMASKQ_DIST(JI,JJ,JK) .EQ. IM) THEN
                        JIL = JIL + 1
-                       I8VECT(JIL) = NJMAX_ll*NIMAX_ll*(JK-1) + NIMAX_ll*(IYOR+JJ-1) + (IXOR+JI-1)
+                       I8VECT(JIL) = IJU_ll*IIU_ll*(JK-1) + IIU_ll*(JJ-1 +IYOR-1) + (JI +IXOR-1)
+                       !print*,"IN  => I8VECT(JIL    )=",I8VECT(JIL),JI,JJ,JK,JIL
                     END IF
                  END DO
               END DO
@@ -2175,9 +2178,10 @@ DO WHILE (IM .LE. IDELTA_IND .AND. ISTOP .NE. 1)
                  IFOUND = 1               
                  ! The points is in this processors  , get is coord and set it
                  IF (IRANK_LL(IORDER_LL(ICHOICE)) .EQ. IPROC) THEN
-                    JK = I8VECT_LL(ICHOICE) / ( NJMAX_ll*NIMAX_ll ) +1 
-                    JJ = ( I8VECT_LL(ICHOICE) - NJMAX_ll*NIMAX_ll*(JK-1) ) / NIMAX_ll - IYOR +1
-                    JI = MOD(I8VECT_LL(ICHOICE),NIMAX_ll) - IXOR +1
+                    JK = 1 +     (I8VECT_LL(ICHOICE)-1) / ( IJU_ll*IIU_ll ) 
+                    JJ = 1 + (   (I8VECT_LL(ICHOICE)-1) - IJU_ll*IIU_ll*(JK-1) ) / IIU_ll  - IYOR +1
+                    JI = 1 + MOD((I8VECT_LL(ICHOICE)-1)                          , IIU_ll) - IXOR +1
+                    !print*,"OUT => I8VECT_LL(ICHOICE)=",I8VECT_ll(ICHOICE),JI,JJ,JK,ICHOICE
                     ZFLASH(JI,JJ,JK,IL) = 2.
                  END IF
                  I8VECT_LL(ICHOICE) = 0.
diff --git a/src/MNH/ini_flash_geom_elec.f90 b/src/MNH/ini_flash_geom_elec.f90
index b3dae956279c035a8b6fcfa5f770fe6372c4047b..9ff78049a1bdf844a71aa8189415a7d8b4a536c9 100644
--- a/src/MNH/ini_flash_geom_elec.f90
+++ b/src/MNH/ini_flash_geom_elec.f90
@@ -47,6 +47,7 @@ END MODULE MODI_INI_FLASH_GEOM_ELEC
 !!
 !!      Modifications
 !!        J.-P. Pinty  jan 2015 : add LMA simulator
+!!        J.Escobar 20/06/2018 : truly set NBRANCH_MAX = 5000 !
 !!
 !-------------------------------------------------------------------------------
 !
@@ -110,7 +111,7 @@ XE_THRESH =  35.E3 ! (V/m)
 NLEADER_MAX = NKMAX
 !
 ! the maximum number of branches is arbitriraly set to 5000
-NBRANCH_MAX = 50000
+NBRANCH_MAX = 5000
 !
 ! the maximum number of electrified cells in the domain is arbitrarily 
 ! set to 10