diff --git a/Make.inc.in b/Make.inc.in
index 858ad336..38c8ef86 100755
--- a/Make.inc.in
+++ b/Make.inc.in
@@ -67,6 +67,12 @@ UTILMODNAME=@UTILMODNAME@
 
 CBINDLIBNAME=libpsb_cbind.a
 
+OACCD=@OACCD@
+OACCLD=@OACCLD@
+FCOPENACC=@FCOPENACC@
+CCOPENACC=@CCOPENACC@
+CXXOPENACC=@CXXOPENACC@	
+
 CUDAD=@CUDAD@
 CUDALD=@CUDALD@
 LCUDA=@LCUDA@
@@ -82,6 +88,7 @@ CUDA_SHORT_VERSION=@CUDA_SHORT_VERSION@
 NVCC=@CUDA_NVCC@
 CUDEFINES=@CUDEFINES@
 
+
 .SUFFIXES: .cu
 .cu.o:
 	$(NVCC)   $(CINCLUDES) $(CDEFINES) $(CUDEFINES) -c $<
diff --git a/Makefile b/Makefile
index 95f4cb17..972fd3c6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 include Make.inc
 
-all: dirs based precd kryld utild cbindd extd  $(CUDAD) libd
+all: dirs based precd kryld utild cbindd extd  $(CUDAD) $(OACCD) libd
 	@echo "====================================="
 	@echo "PSBLAS libraries Compilation Successful."
 
@@ -14,9 +14,10 @@ utild: based
 kryld: precd 
 extd:  based
 cudad:  extd
+oaccd:  extd	
 cbindd: based precd kryld utild 
 
-libd: based precd kryld utild cbindd extd $(CUDALD)
+libd: based precd kryld utild cbindd extd $(CUDALD) $(OACCLD)
 	$(MAKE) -C base lib
 	$(MAKE) -C prec lib
 	$(MAKE) -C krylov lib
@@ -25,6 +26,8 @@ libd: based precd kryld utild cbindd extd $(CUDALD)
 	$(MAKE) -C ext lib
 cudald:  cudad
 	$(MAKE) -C cuda lib
+oaccld:  oaccd
+	$(MAKE) -C openacc lib
 
 
 based:
@@ -41,6 +44,8 @@ extd:   based
 	$(MAKE) -C ext objs
 cudad:   based extd
 	$(MAKE) -C cuda objs
+oaccd:   based extd
+	$(MAKE) -C openacc objs 
 
 
 install: all
@@ -67,6 +72,7 @@ clean:
 	$(MAKE) -C cbind clean
 	$(MAKE) -C ext clean
 	$(MAKE) -C cuda clean
+	$(MAKE) -C openacc clean
 
 check: all
 	make check -C test/serial
@@ -84,6 +90,7 @@ veryclean: cleanlib
 	cd cbind && $(MAKE) veryclean
 	cd ext && $(MAKE) veryclean
 	cd cuda && $(MAKE) veryclean
+	cd openacc && $(MAKE) veryclean
 	cd test/fileread && $(MAKE) clean
 	cd test/pargen && $(MAKE) clean
 	cd test/util && $(MAKE) clean
diff --git a/config/pac.m4 b/config/pac.m4
index 0d22392f..d74a6f24 100644
--- a/config/pac.m4
+++ b/config/pac.m4
@@ -2267,3 +2267,47 @@ CPPFLAGS="$SAVE_CPPFLAGS"
 ])dnl 
 
 
+
+dnl @synopsis PAC_ARG_OPENACC
+dnl
+dnl Test for --enable-openacc
+dnl 
+dnl 
+dnl
+dnl Example use:
+dnl
+dnl
+dnl @author Salvatore Filippone <salvatore.filippone@uniroma2.it>
+dnl
+AC_DEFUN([PAC_ARG_OPENACC],
+[AC_MSG_CHECKING([whether we want openacc ])
+AC_ARG_ENABLE(openacc,
+AS_HELP_STRING([--enable-openacc], 
+[Specify whether to enable openacc. ]),
+[
+pac_cv_openacc="yes";
+]
+dnl ,
+dnl [pac_cv_openacc="no";]
+	     )
+if test x"$pac_cv_openacc" == x"yes" ; then
+   AC_MSG_RESULT([yes.])
+#   AC_LANG_PUSH([Fortran])
+#   AC_OPENACC() 
+#   pac_cv_openacc_fcopt="$OPENACC_FCFLAGS";
+#   AC_LANG_POP()
+#   AC_LANG_PUSH([C])
+#   AC_OPENACC() 
+#   pac_cv_openacc_ccopt="$OPENACC_CFLAGS";
+#   AC_LANG_POP()
+#   AC_LANG_PUSH([C++])
+#   AC_OPENACC() 
+#   pac_cv_openacc_cxxopt="$OPENACC_CXXFLAGS";
+#   AC_LANG_POP()
+else
+ pac_cv_openacc="no";
+ AC_MSG_RESULT([no.])
+fi
+]
+)
+
diff --git a/configure b/configure
index b7e5f329..15e3670d 100755
--- a/configure
+++ b/configure
@@ -667,6 +667,11 @@ CUDA_DIR
 EXTRALDLIBS
 SPGPU_LIBS
 SPGPU_FLAGS
+CXXOPENACC
+CCOPENACC
+FCOPENACC
+OACCLD
+OACCD
 METISINCFILE
 UTILLIBNAME
 METHDLIBNAME
@@ -840,6 +845,10 @@ with_amdincdir
 with_amdlibdir
 with_cuda
 with_cudacc
+enable_openacc
+with_ccopenacc
+with_cxxopenacc
+with_fcopenacc
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1490,6 +1499,7 @@ Optional Features:
   --disable-silent-rules  verbose build output (undo: "make V=0")
   --enable-openmp         Specify whether to enable openmp.
   --disable-openmp        do not use OpenMP
+  --enable-openacc        Specify whether to enable openacc.
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1535,6 +1545,12 @@ Optional Packages:
   --with-cuda=DIR         Specify the CUDA install directory.
   --with-cudacc           A comma-separated list of CCs to compile to, for
                           example, --with-cudacc=50,60,70,75
+  --with-ccopenacc        additional [CCOPENACC] flags to be added: will
+                          prepend to [CCOPENACC]
+  --with-cxxopenacc       additional [CXXOPENACC] flags to be added: will
+                          prepend to [CXXOPENACC]
+  --with-fcopenacc        additional [FCOPENACC] flags to be added: will
+                          prepend to [FCOPENACC]
 
 Some influential environment variables:
   FC          Fortran compiler command
@@ -10867,6 +10883,106 @@ printf "%s\n" "$as_me: For CUDA I need psb_ipk_ to be 4 bytes but it is $pac_cv_
   CUDA_LIBS="";
 fi
 
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we want openacc " >&5
+printf %s "checking whether we want openacc ... " >&6; }
+# Check whether --enable-openacc was given.
+if test ${enable_openacc+y}
+then :
+  enableval=$enable_openacc;
+pac_cv_openacc="yes";
+
+
+fi
+
+if test x"$pac_cv_openacc" == x"yes" ; then
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes." >&5
+printf "%s\n" "yes." >&6; }
+#   AC_LANG_PUSH([Fortran])
+#   AC_OPENACC()
+#   pac_cv_openacc_fcopt="$OPENACC_FCFLAGS";
+#   AC_LANG_POP()
+#   AC_LANG_PUSH([C])
+#   AC_OPENACC()
+#   pac_cv_openacc_ccopt="$OPENACC_CFLAGS";
+#   AC_LANG_POP()
+#   AC_LANG_PUSH([C++])
+#   AC_OPENACC()
+#   pac_cv_openacc_cxxopt="$OPENACC_CXXFLAGS";
+#   AC_LANG_POP()
+else
+ pac_cv_openacc="no";
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no." >&5
+printf "%s\n" "no." >&6; }
+fi
+
+
+if test x"$pac_cv_openacc" == x"yes" ; then
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether additional CCOPENACC flags should be added (should be invoked only once)" >&5
+printf %s "checking whether additional CCOPENACC flags should be added (should be invoked only once)... " >&6; }
+
+# Check whether --with-ccopenacc was given.
+if test ${with_ccopenacc+y}
+then :
+  withval=$with_ccopenacc;
+CCOPENACC="${withval} ${CCOPENACC}"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CCOPENACC = ${CCOPENACC}" >&5
+printf "%s\n" "CCOPENACC = ${CCOPENACC}" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether additional CXXOPENACC flags should be added (should be invoked only once)" >&5
+printf %s "checking whether additional CXXOPENACC flags should be added (should be invoked only once)... " >&6; }
+
+# Check whether --with-cxxopenacc was given.
+if test ${with_cxxopenacc+y}
+then :
+  withval=$with_cxxopenacc;
+CXXOPENACC="${withval} ${CXXOPENACC}"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: CXXOPENACC = ${CXXOPENACC}" >&5
+printf "%s\n" "CXXOPENACC = ${CXXOPENACC}" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether additional FCOPENACC flags should be added (should be invoked only once)" >&5
+printf %s "checking whether additional FCOPENACC flags should be added (should be invoked only once)... " >&6; }
+
+# Check whether --with-fcopenacc was given.
+if test ${with_fcopenacc+y}
+then :
+  withval=$with_fcopenacc;
+FCOPENACC="${withval} ${FCOPENACC}"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: FCOPENACC = ${FCOPENACC}" >&5
+printf "%s\n" "FCOPENACC = ${FCOPENACC}" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+
+
+
+   OACCD=oaccd;
+   OACCLD=oaccld;
+
+   #FCOPT="$FCOPT    $FCOPENACC";
+   #CCOPT="$CCOPT    $CCOPENACC"
+   #CXXOPT="$CXXOPT  $CXXOPENACC"
+   #FLINK="$FLINK $FCOPENACC";
+fi
 
 
 
@@ -10957,6 +11073,13 @@ FDEFINES=$(PSBFDEFINES) $(CUDA_DEFINES)
 
 
 
+
+
+
+
+
+
+
 
 
 
diff --git a/configure.ac b/configure.ac
index 10f9e2f4..ed4f4acc 100755
--- a/configure.ac
+++ b/configure.ac
@@ -843,6 +843,20 @@ if test "x$pac_cv_ipk_size" != "x4"; then
   CUDA_LIBS="";
 fi
 
+PAC_ARG_OPENACC()
+if test x"$pac_cv_openacc" == x"yes" ; then
+   PAC_ARG_WITH_FLAGS(ccopenacc,CCOPENACC)
+   PAC_ARG_WITH_FLAGS(cxxopenacc,CXXOPENACC)
+   PAC_ARG_WITH_FLAGS(fcopenacc,FCOPENACC)
+
+   OACCD=oaccd;
+   OACCLD=oaccld;
+
+   #FCOPT="$FCOPT    $FCOPENACC";
+   #CCOPT="$CCOPT    $CCOPENACC"	
+   #CXXOPT="$CXXOPT  $CXXOPENACC"		
+   #FLINK="$FLINK $FCOPENACC";
+fi
 
 
 
@@ -927,6 +941,12 @@ AC_SUBST(PRECLIBNAME)
 AC_SUBST(METHDLIBNAME)
 AC_SUBST(UTILLIBNAME)
 AC_SUBST(METISINCFILE)
+AC_SUBST(OACCD)
+AC_SUBST(OACCLD)
+AC_SUBST(FCOPENACC)
+AC_SUBST(CCOPENACC)
+AC_SUBST(CXXOPENACC)
+
 AC_SUBST(SPGPU_FLAGS)
 AC_SUBST(SPGPU_LIBS)
 dnl AC_SUBST(SPGPU_DIR)
@@ -944,6 +964,7 @@ AC_SUBST(CUDEFINES)
 AC_SUBST(CUDAD)
 AC_SUBST(CUDALD)
 AC_SUBST(LCUDA)
+
 ###############################################################################
 # the following files will be created by Automake