diff --git a/Makefile b/Makefile
index 7ac420ee3..d1da4b19f 100644
--- a/Makefile
+++ b/Makefile
@@ -65,8 +65,8 @@ MODULES         = $(SWIFTEST_MODULES) $(USER_MODULES)
 .PHONY : all mod fast strict drivers bin clean force 
 
 % : %.f90 force
-	$(FORTRAN) $(FFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $< -o $@ \
-	  -L$(SWIFTEST_HOME)/lib -lswiftest -L$(NETCDF_FORTRAN_HOME)/lib -lnetcdf -lnetcdff $(LMKL)
+	$(FORTRAN) $(FFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) $< -o $@ \
+	  -L$(SWIFTEST_HOME)/lib -lswiftest -L$(NETCDF_FORTRAN_HOME)/lib -lnetcdf -lnetcdff $(LMKL) $(LADVIXE)
 	$(INSTALL_PROGRAM) $@ $(SWIFTEST_HOME)/bin
 	rm -f $@
 
@@ -79,7 +79,7 @@ all:
 
 mod:
 	cd $(SWIFTEST_HOME)/src/modules/; \
-	  $(FORTRAN) $(FFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c $(MODULES); \
+	  $(FORTRAN) $(FFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c $(MODULES); \
 	  $(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o; \
 	  $(INSTALL_DATA) *.mod *.smod $(SWIFTEST_HOME)/include; \
 	  rm -f *.o *.mod  *.smod
@@ -188,34 +188,34 @@ strict:
 	  ln -s $(SWIFTEST_HOME)/Makefile .; \
 	  make strictdir
 	cd $(SWIFTEST_HOME)/src/helio; \
-		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c helio_kick.f90; \
+		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c helio_kick.f90; \
 		$(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o *.smod; \
 		$(INSTALL_DATA) *.smod $(SWIFTEST_HOME)/include; \
 		rm -f *.o *.smod	
 	cd $(SWIFTEST_HOME)/src/symba; \
-		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c symba_kick.f90; \
+		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c symba_kick.f90; \
 		$(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o *.smod; \
 		$(INSTALL_DATA) *.smod $(SWIFTEST_HOME)/include; \
 		rm -f *.o *.smod
 	cd $(SWIFTEST_HOME)/src/rmvs; \
-		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c rmvs_kick.f90; \
+		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c rmvs_kick.f90; \
 		$(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o *.smod; \
 		$(INSTALL_DATA) *.smod $(SWIFTEST_HOME)/include; \
 		rm -f *.o *.smod	
 	cd $(SWIFTEST_HOME)/src/whm; \
-		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c whm_kick.f90; \
+		$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c whm_kick.f90; \
 		$(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o *.smod; \
 		$(INSTALL_DATA) *.smod $(SWIFTEST_HOME)/include; \
 		rm -f *.o *.smod
 
 fastdir:
-	$(FORTRAN) $(FFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c *.f90; \
+	$(FORTRAN) $(FFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c *.f90; \
 	$(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o *.smod; \
 	$(INSTALL_DATA) *.smod $(SWIFTEST_HOME)/include; \
 	rm -f *.o *.smod
 
 strictdir:
-	$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) -c *.f90; \
+	$(FORTRAN) $(FSTRICTFLAGS) -I$(SWIFTEST_HOME)/include -I$(NETCDF_FORTRAN_HOME)/include $(IMKL) $(IADVIXE) -c *.f90; \
 	$(AR) rv $(SWIFTEST_HOME)/lib/libswiftest.a *.o *.smod; \
 	$(INSTALL_DATA) *.smod $(SWIFTEST_HOME)/include; \
 	rm -f *.o *.smo	
diff --git a/Makefile.Defines b/Makefile.Defines
index e3f1696e5..4bb4e55a8 100644
--- a/Makefile.Defines
+++ b/Makefile.Defines
@@ -45,13 +45,9 @@ COLLRESOLVE_HOME = $(ROOT_DIR)/collresolve/
 
 # DO NOT include in FFLAGS the "-c" option to compile object only
 # this is done explicitly as needed in the Makefile
-ADVIXE_DIR = /apps/cent7/intel/advisor_2019
-ADVIXE_FLAGS = -g -O2 -qopt-report=5 -vecabi=cmdtarget -simd -shared-intel -debug inline-debug-info -DTBB_DEBUG -DTBB_USE_THREADING_TOOLS -xhost -traceback 
-
-VTUNE_FLAGS = -g -O2 -qopt-report=5 -simd -shared-intel -qopenmp -debug inline-debug-info -parallel-source-info=2 -parallel -DTBB_DEBUG -DTBB_USE_THREADING_TOOLS -qopenmp -fp-model no-except -mp1 -xhost -traceback 
+ADVIXE_FLAGS = -g -O2 -qopt-report=5 -vec -shared-intel -ldl -debug inline-debug-info -DTBB_DEBUG -DTBB_USE_THREADING_TOOLS -traceback 
 #Be sure to set the environment variable KMP_FORKJOIN_FRAMES=1 for OpenMP debuging in vtune
 
-IDEBUG = -O0 -init=snan,arrays  -nogen-interfaces -no-pie -no-ftz -fpe-all=0 -g -traceback -mp1 -fp-model strict -fpe0 -debug all -align all -pad -ip -prec-div -prec-sqrt -assume protect-parens -CB -no-wrap-margin
 STRICTREAL = -fp-model=precise -prec-div -prec-sqrt -assume protect-parens 
 SIMDVEC = -simd -xhost -align all -assume contiguous_assumed_shape -vecabi=cmdtarget -fp-model no-except -fma
 PAR = -qopenmp -parallel
@@ -76,15 +72,7 @@ FORTRAN = ifort
 AR     = xiar
 CC    = icc
 
-#FORTRAN = gfortran
-#FFLAGS =  $(GDEBUG)  $(GMEM) #$(GPAR)
-#FSTRICTFLAGS =  $(GDEBUG)  $(GMEM) #$(GPAR)
-#AR     = ar 
-#CC     = cc
-
-# DO NOT include in CFLAGS the "-c" option to compile object only
-# this is done explicitly as needed in the Makefile
-
+CC              = icc
 CFLAGS          = -O3 -w -m64 -std=c99
 
 64_BIT_REALS    = -r8
diff --git a/src/main/swiftest_driver.f90 b/src/main/swiftest_driver.f90
index 5fdb43c8b..d4e1f2dc8 100644
--- a/src/main/swiftest_driver.f90
+++ b/src/main/swiftest_driver.f90
@@ -123,6 +123,8 @@ program swiftest_driver
       end do
    end associate
 
+   call nbody_system%dealloc()
+
    call util_exit(SUCCESS)
 
    stop
diff --git a/src/netcdf/netcdf.f90 b/src/netcdf/netcdf.f90
index 4ff68f74a..b99188855 100644
--- a/src/netcdf/netcdf.f90
+++ b/src/netcdf/netcdf.f90
@@ -649,8 +649,6 @@ module subroutine netcdf_read_hdr_system(self, iu, param)
 
       tslot = int(param%ioutput, kind=I4B) + 1
 
-      call check( nf90_open(param%outfile, NF90_NOWRITE, iu%ncid) )
-
       call check( nf90_get_var(iu%ncid, iu%time_varid, param%t,       start=[tslot]) )
       call check( nf90_get_var(iu%ncid, iu%npl_varid,  self%pl%nbody, start=[tslot]) )
       call check( nf90_get_var(iu%ncid, iu%ntp_varid,  self%tp%nbody, start=[tslot]) )
@@ -1087,8 +1085,6 @@ module subroutine netcdf_write_hdr_system(self, iu, param)
 
       tslot = int(param%ioutput, kind=I4B) + 1
 
-      call check( nf90_open(param%outfile, nf90_write, iu%ncid) )
-
       call check( nf90_put_var(iu%ncid, iu%time_varid, param%t, start=[tslot]) )
       call check( nf90_put_var(iu%ncid, iu%npl_varid, self%pl%nbody, start=[tslot]) )
       call check( nf90_put_var(iu%ncid, iu%ntp_varid, self%tp%nbody, start=[tslot]) )
diff --git a/src/symba/symba_util.f90 b/src/symba/symba_util.f90
index f429b74b7..50c3c4e4b 100644
--- a/src/symba/symba_util.f90
+++ b/src/symba/symba_util.f90
@@ -251,6 +251,8 @@ module subroutine symba_util_dealloc_pl(self)
       implicit none
       ! Arguments
       class(symba_pl),  intent(inout) :: self !! SyMBA massive body object
+      ! Internals
+      integer(I4B) :: i
 
       if (allocated(self%lcollision)) deallocate(self%lcollision)
       if (allocated(self%lencounter)) deallocate(self%lencounter)
@@ -262,6 +264,11 @@ module subroutine symba_util_dealloc_pl(self)
       if (allocated(self%isperi)) deallocate(self%isperi)
       if (allocated(self%peri)) deallocate(self%peri)
       if (allocated(self%atp)) deallocate(self%atp)
+
+      do i = 1, self%nbody
+         call self%kin(i)%dealloc()
+      end do
+
       if (allocated(self%kin)) deallocate(self%kin)
 
       call util_dealloc_pl(self)
@@ -408,7 +415,7 @@ module subroutine symba_util_flatten_eucl_plpl(self, param)
          if (param%lflatten_interactions) then
             if (allocated(self%k_plpl)) deallocate(self%k_plpl) ! Reset the index array if it's been set previously
             allocate(self%k_plpl(2, nplpl), stat=err)
-            if (err /=0) then ! An error occurred trying to allocate this big array. This probably means it's too big to fit in memory, and so we will force the run back into triangular mode
+            if (err /= 0) then ! An error occurred trying to allocate this big array. This probably means it's too big to fit in memory, and so we will force the run back into triangular mode
                param%lflatten_interactions = .false.
             else
                do concurrent (i=1:npl, j=1:npl, j>i)