diff --git a/Make.inc.in b/Make.inc.in
index ceba77b8..33164e1c 100755
--- a/Make.inc.in
+++ b/Make.inc.in
@@ -70,12 +70,14 @@ UTILMODNAME=@UTILMODNAME@
 CBINDLIBNAME=libpsb_cbind.a
 
 OACCD=@OACCD@
+OACCMODS=@OACCMODS@
 OACCLD=@OACCLD@
 FCOPENACC=@FCOPENACC@
 CCOPENACC=@CCOPENACC@
 CXXOPENACC=@CXXOPENACC@	
 
 CUDAD=@CUDAD@
+CUDAMODS=@CUDAMODS@
 CUDALD=@CUDALD@
 LCUDA=@LCUDA@
 
diff --git a/Makefile b/Makefile
index fd18a38c..131b90a3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 include Make.inc
 
-all: dirs based precd linslvd utild cbindd extd  $(CUDAD) $(OACCD) libd
+all: dirs mods based precd linslvd utild cbindd extd  $(CUDAD) $(OACCD) libd
 	@echo "====================================="
 	@echo "PSBLAS libraries Compilation Successful."
 
@@ -9,12 +9,26 @@ dirs:
 	(if test ! -d include ; then mkdir include; fi; $(INSTALL_DATA) Make.inc  include/Make.inc.psblas)
 	(if test ! -d modules ; then mkdir modules; fi;)	
 
-precd: based
-utild: based	
-linslvd: precd 
-extd:  based
-cudad:  extd
-oaccd:  extd	
+mods: basemods precmods linsolvemods extmods  $(CUDAMODS) $(OACCMODS)
+basemods:
+	$(MAKE) -C base mods
+precmods: basemods
+	$(MAKE) -C prec mods
+extmods:  basemods
+	$(MAKE) -C ext mods
+linsolvemods: precmods
+	$(MAKE) -C linsolve mods
+cudamods: extmods
+	$(MAKE) -C cuda mods
+oaccmods: extmods
+	$(MAKE) -C openacc mods
+
+precd: basemods based
+utild: basemods based	
+linslvd: linsolvemods precd 
+extd:  extmods based
+cudad:  cudamods extd
+oaccd:  oaccmods extd	
 cbindd: based precd linslvd utild 
 
 libd: based precd linslvd utild cbindd extd $(CUDALD) $(OACCLD)
diff --git a/configure b/configure
index e6b1d36f..b7c67d8a 100755
--- a/configure
+++ b/configure
@@ -653,6 +653,7 @@ LIBRSB_INCLUDES
 LIBRSB_LIBS
 LCUDA
 CUDALD
+CUDAMODS
 CUDAD
 CUDEFINES
 CUDA_NVCC
@@ -672,6 +673,7 @@ CXXOPENACC
 CCOPENACC
 FCOPENACC
 OACCLD
+OACCMODS
 OACCD
 METISINCFILE
 UTILLIBNAME
@@ -10922,6 +10924,7 @@ printf "%s\n" "$as_me: For CUDA I need psb_ipk_ to be 4 bytes but it is $pac_cv_
   CUDA_CC="";
   SPGPU_LIBS="";
   CUDAD="";
+  CUDAMODS="";
   CUDALD="";
   CUDEFINES="";
   CUDA_DEFINES="";
@@ -11171,6 +11174,7 @@ printf "%s\n" "$as_me: Unsupported CUDA version ${PSB_CUDA_VERSION} disabling CU
          CUDA_CC="";
          SPGPU_LIBS="";
          CUDAD="";
+         CUDAMODS="";
          CUDALD="";
          CUDEFINES="";
          CUDA_DEFINES="";
@@ -11190,6 +11194,7 @@ printf "%s\n" "$as_me: CUDA version ${PSB_CUDA_VERSION}" >&6;}
          CVERSIONCUDA="#define PSB_CUDA_VERSION ${PSB_CUDA_VERSION}"
          SPGPU_LIBS="-lspgpu";
          CUDAD=cudad;
+         CUDAMODS=cudamods;
          CUDALD=cudald;
          LCUDA="-lpsb_cuda";
          EXTRALDLIBS="-lstdc++";
@@ -11611,6 +11616,7 @@ fi
    CXXOPENACC="$CXXOPENACC   $EXTRAOPENACC";
    FCOPENACC="$FCOPENACC   $EXTRAOPENACC";
    OACCD=oaccd;
+   OACCMODS=oaccmods;
    OACCLD=oaccld;
 
    #FCOPT="$FCOPT    $FCOPENACC";
@@ -11770,6 +11776,8 @@ FDEFINES=$(PSBFDEFINES)
 
 
 
+
+
 
 
 
diff --git a/configure.ac b/configure.ac
index eb645bdb..c082b584 100644
--- a/configure.ac
+++ b/configure.ac
@@ -852,6 +852,7 @@ if test "x$pac_cv_ipk_size" != "x4"; then
   CUDA_CC="";	
   SPGPU_LIBS="";	
   CUDAD="";
+  CUDAMODS="";	
   CUDALD="";
   CUDEFINES="";
   CUDA_DEFINES="";
@@ -876,6 +877,7 @@ else
          CUDA_CC="";	
          SPGPU_LIBS="";	
          CUDAD="";
+         CUDAMODS="";	
          CUDALD="";
          CUDEFINES="";
          CUDA_DEFINES="";
@@ -894,6 +896,7 @@ else
          CVERSIONCUDA="#define PSB_CUDA_VERSION ${PSB_CUDA_VERSION}"
          SPGPU_LIBS="-lspgpu";	
          CUDAD=cudad;
+         CUDAMODS=cudamods;
          CUDALD=cudald;
          LCUDA="-lpsb_cuda";	
          EXTRALDLIBS="-lstdc++";
@@ -954,6 +957,7 @@ dnl   fi
    FCOPENACC="$FCOPENACC   $EXTRAOPENACC";
 dnl   AC_MSG_NOTICE([OpenACC 3 flags CC $CCOPENACC CXX $CXXOPENACC FC $FCOPENACC])	   
    OACCD=oaccd;
+   OACCMODS=oaccmods;
    OACCLD=oaccld;
 
    #FCOPT="$FCOPT    $FCOPENACC";
@@ -1090,6 +1094,7 @@ AC_SUBST(METHDLIBNAME)
 AC_SUBST(UTILLIBNAME)
 AC_SUBST(METISINCFILE)
 AC_SUBST(OACCD)
+AC_SUBST(OACCMODS)
 AC_SUBST(OACCLD)
 AC_SUBST(FCOPENACC)
 AC_SUBST(CCOPENACC)
@@ -1113,6 +1118,7 @@ AC_SUBST(PSB_CUDA_SHORT_VERSION)
 AC_SUBST(CUDA_NVCC)
 AC_SUBST(CUDEFINES)
 AC_SUBST(CUDAD)
+AC_SUBST(CUDAMODS)
 AC_SUBST(CUDALD)
 AC_SUBST(LCUDA)
 AC_SUBST(LIBRSB_LIBS)
diff --git a/cuda/Makefile b/cuda/Makefile
index 6fbf2cbd..2a8bb94f 100755
--- a/cuda/Makefile
+++ b/cuda/Makefile
@@ -47,14 +47,15 @@ COBJS= elldev.o hlldev.o diagdev.o hdiagdev.o vectordev.o  ivectordev.o dnsdev.o
 
 OBJS=$(COBJS) $(FOBJS)
 
-lib: objs ilib cudalib spgpulib
+lib: mods objs ilib cudalib spgpulib
 	$(AR) $(LIBNAME) $(OBJS)
 	/bin/cp -p $(LIBNAME) $(LIBDIR)
 
 
-objs: $(OBJS) iobjs cudaobjs spgpuobjs
+mods: $(FOBJS)
 	/bin/cp -p *$(.mod) $(MODDIR)
 	/bin/cp -p *.h $(INCDIR)
+objs: mods $(OBJS) iobjs cudaobjs spgpuobjs
 
 $(OBJS) iobjs cudaobjs spgpuobjs: spgpuinc
 
diff --git a/ext/Makefile b/ext/Makefile
index 6ef24cba..4b30d8b5 100755
--- a/ext/Makefile
+++ b/ext/Makefile
@@ -14,7 +14,7 @@ CINCLUDES=
 LIBNAME=libpsb_ext.a
 
 
-FOBJS=  psb_d_ell_mat_mod.o psb_d_hll_mat_mod.o \
+MODOBJS=psb_d_ell_mat_mod.o psb_d_hll_mat_mod.o \
 	psb_s_hll_mat_mod.o psb_s_ell_mat_mod.o \
 	psb_c_hll_mat_mod.o psb_c_ell_mat_mod.o \
 	psb_z_hll_mat_mod.o psb_z_ell_mat_mod.o \
@@ -31,13 +31,15 @@ FOBJS=  psb_d_ell_mat_mod.o psb_d_hll_mat_mod.o \
 
 COBJS= 
 
-OBJS=$(COBJS) $(FOBJS)
+OBJS=$(COBJS) $(MODOBJS)
 
 lib: objs ilib 
 	$(AR) $(LIBNAME) $(OBJS)
 	/bin/cp -p $(LIBNAME) $(LIBDIR)
    
-objs: $(OBJS) iobjs
+objs: mods $(OBJS) iobjs
+
+mods: $(MODOBJS)
 	/bin/cp -p *$(.mod) $(MODDIR)
 
 
@@ -65,11 +67,11 @@ psb_s_hll_mat_mod.o psb_c_hll_mat_mod.o psb_d_hll_mat_mod.o psb_z_hll_mat_mod.o:
 ilib: objs
 	$(MAKE) -C impl lib LIBNAME=$(LIBNAME)
 
-iobjs: $(OBJS)
+iobjs: mods
 	$(MAKE) -C impl objs 
 
 clean: cclean iclean
-	/bin/rm -f  $(FOBJS) *$(.mod) *.a
+	/bin/rm -f  $(MODOBJS) *$(.mod) *.a
 
 cclean: 
 	/bin/rm -f  $(COBJS) 
diff --git a/linsolve/Makefile b/linsolve/Makefile
index c8fa3ac7..f97222e6 100644
--- a/linsolve/Makefile
+++ b/linsolve/Makefile
@@ -18,7 +18,9 @@ LIBNAME=$(METHDLIBNAME)
 
 FINCLUDES=$(FMFLAG). $(FMFLAG)$(MODDIR) 
 
-objs: $(OBJS)  impld
+objs: mods $(OBJS)  impld
+
+mods: $(MODOBJS)
 	/bin/cp -p $(CPUPDFLAG) *$(.mod) $(MODDIR)
 
 lib: objs
diff --git a/openacc/Makefile b/openacc/Makefile
index 6b1f3fbb..ed40e036 100644
--- a/openacc/Makefile
+++ b/openacc/Makefile
@@ -38,7 +38,9 @@ lib: objs ilib
 	$(AR) $(LIBNAME) $(OBJS)
 	/bin/cp -p $(LIBNAME) $(LIBDIR)
 
-objs: $(OBJS) iobjs
+objs: mods $(OBJS) iobjs
+
+mods: $(FOBJS)
 	/bin/cp -p *$(.mod) $(MODDIR)
 
 iobjs: $(OBJS)
diff --git a/prec/Makefile b/prec/Makefile
index 5d7523f4..c934fe43 100644
--- a/prec/Makefile
+++ b/prec/Makefile
@@ -28,8 +28,11 @@ COBJS=
 FINCLUDES=$(FMFLAG). $(FMFLAG)$(MODDIR)
 OBJS=$(F90OBJS) $(COBJS) $(MPFOBJS) $(MODOBJS)
 
-objs:  $(OBJS) impld
+objs:  mods $(OBJS) impld
+
+mods: $(MODOBJS)
 	/bin/cp -p $(CPUPDFLAG) *$(.mod) $(MODDIR)
+
 lib:  objs
 	$(MAKE) -C impl lib
 	$(AR) $(HERE)/$(LIBNAME) $(OBJS)
diff --git a/util/Makefile b/util/Makefile
index 96820899..67dfd6e8 100644
--- a/util/Makefile
+++ b/util/Makefile
@@ -29,8 +29,11 @@ LIBNAME=$(UTILLIBNAME)
 FINCLUDES=$(FMFLAG). $(FMFLAG)$(MODDIR) 
 CINCLUDES=-I. -I$(INCDIR)
 
-objs: $(OBJS)
+objs: mods $(OBJS)
+
+mods: $(MODOBJS)
 	/bin/cp -p $(CPUPDFLAG) *$(.mod) $(MODDIR)
+
 lib:  $(HERE)/$(LIBNAME) 
 	/bin/cp -p $(CPUPDFLAG) $(HERE)/$(LIBNAME) $(LIBDIR)