diff --git a/Makefile b/Makefile
index 24e08cc2..8e727371 100644
--- a/Makefile
+++ b/Makefile
@@ -13,9 +13,9 @@ libdir:
         
 
 mlp:
-	cd mlprec && $(MAKE) all
+	$(MAKE) -C mlprec all
 cbnd: mlp
-	cd cbind && $(MAKE) all
+	$(MAKE) -C cbind all
 install: all
 	mkdir -p $(INSTALL_LIBDIR) &&\
 	   $(INSTALL_DATA) lib/*.a  $(INSTALL_LIBDIR)
diff --git a/cbind/Makefile b/cbind/Makefile
index 663fda86..a7cc9917 100644
--- a/cbind/Makefile
+++ b/cbind/Makefile
@@ -15,11 +15,11 @@ lib: mlprecd
 
 
 mlprecd:
-	cd mlprec && $(MAKE) lib LIBNAME=$(LIBNAME) 
+	$(MAKE) -C mlprec lib LIBNAME=$(LIBNAME) 
 
 
 clean: 
-	cd mlprec && $(MAKE) clean
+	$(MAKE) -C mlprec clean
 
 
 veryclean: clean
diff --git a/mlprec/Makefile b/mlprec/Makefile
index 7b5b3d24..76a4a699 100644
--- a/mlprec/Makefile
+++ b/mlprec/Makefile
@@ -55,7 +55,7 @@ LIBNAME=libmld_prec.a
 all: lib impld
 
 impld: $(OBJS)
-	cd impl && $(MAKE)
+	$(MAKE) -C impl
 
 lib: $(OBJS) impld
 	$(AR) $(HERE)/$(LIBNAME) $(OBJS)
@@ -172,4 +172,4 @@ clean: implclean
 	/bin/rm -f $(OBJS) $(LOCAL_MODS) *$(.mod)
 
 implclean:
-	cd impl && $(MAKE) clean
+	$(MAKE) -C impl clean
diff --git a/mlprec/impl/Makefile b/mlprec/impl/Makefile
index 27842294..3a527d23 100644
--- a/mlprec/impl/Makefile
+++ b/mlprec/impl/Makefile
@@ -72,13 +72,13 @@ lib:  $(OBJS) aggrd levd smoothd solvd
 	$(RANLIB) $(HERE)/$(LIBNAME)
 
 aggrd:
-	cd aggregator && $(MAKE)
+	$(MAKE) -C aggregator
 levd:
-	cd level && $(MAKE)
+	$(MAKE) -C level
 smoothd:
-	cd smoother && $(MAKE)
+	$(MAKE) -C smoother
 solvd:
-	cd solver && $(MAKE)
+	$(MAKE) -C solver
 
 mpobjs: 
 	(make $(MPFOBJS) FC="$(MPFC)" FCOPT="$(FCOPT)")
@@ -91,10 +91,10 @@ clean: solvclean smoothclean levclean aggrclean
 	/bin/rm -f $(OBJS) $(LOCAL_MODS)
 
 aggrclean:
-		cd aggregator && $(MAKE) clean
+		$(MAKE) -C aggregator clean
 levclean:
-		cd level && $(MAKE) clean
+		$(MAKE) -C level clean
 smoothclean:
-		cd smoother && $(MAKE) clean
+		$(MAKE) -C smoother clean
 solvclean:
-		cd solver && $(MAKE) clean
+		$(MAKE) -C solver clean
diff --git a/mlprec/impl/aggregator/mld_c_spmm_bld_inner.f90 b/mlprec/impl/aggregator/mld_c_spmm_bld_inner.f90
index d06878de..0e75eb30 100644
--- a/mlprec/impl/aggregator/mld_c_spmm_bld_inner.f90
+++ b/mlprec/impl/aggregator/mld_c_spmm_bld_inner.f90
@@ -170,10 +170,10 @@ subroutine mld_c_spmm_bld_inner(a_csr,desc_a,nlaggr,parms,ac,&
   call csr_restr%free()
   call acsr3%free()
   call ac_csr%mv_to_lcoo(ac_coo,info)
+  call ac_coo%fix(info)
   nza    = ac_coo%get_nzeros()
   if (debug) write(0,*) me,trim(name),' Fixing ac ',&
        & ac_coo%get_nrows(),ac_coo%get_ncols(), nza
-  call ac_coo%fix(info)
   call desc_cprol%indxmap%l2gip(ac_coo%ia(1:nza),info)
   call desc_cprol%indxmap%l2gip(ac_coo%ja(1:nza),info)
   call ac_coo%set_nrows(ntaggr)
diff --git a/mlprec/impl/aggregator/mld_d_spmm_bld_inner.f90 b/mlprec/impl/aggregator/mld_d_spmm_bld_inner.f90
index aeac233e..0d85c647 100644
--- a/mlprec/impl/aggregator/mld_d_spmm_bld_inner.f90
+++ b/mlprec/impl/aggregator/mld_d_spmm_bld_inner.f90
@@ -170,10 +170,10 @@ subroutine mld_d_spmm_bld_inner(a_csr,desc_a,nlaggr,parms,ac,&
   call csr_restr%free()
   call acsr3%free()
   call ac_csr%mv_to_lcoo(ac_coo,info)
+  call ac_coo%fix(info)
   nza    = ac_coo%get_nzeros()
   if (debug) write(0,*) me,trim(name),' Fixing ac ',&
        & ac_coo%get_nrows(),ac_coo%get_ncols(), nza
-  call ac_coo%fix(info)
   call desc_cprol%indxmap%l2gip(ac_coo%ia(1:nza),info)
   call desc_cprol%indxmap%l2gip(ac_coo%ja(1:nza),info)
   call ac_coo%set_nrows(ntaggr)
diff --git a/mlprec/impl/aggregator/mld_s_spmm_bld_inner.f90 b/mlprec/impl/aggregator/mld_s_spmm_bld_inner.f90
index 0eff8d64..4ae68bbb 100644
--- a/mlprec/impl/aggregator/mld_s_spmm_bld_inner.f90
+++ b/mlprec/impl/aggregator/mld_s_spmm_bld_inner.f90
@@ -170,10 +170,10 @@ subroutine mld_s_spmm_bld_inner(a_csr,desc_a,nlaggr,parms,ac,&
   call csr_restr%free()
   call acsr3%free()
   call ac_csr%mv_to_lcoo(ac_coo,info)
+  call ac_coo%fix(info)
   nza    = ac_coo%get_nzeros()
   if (debug) write(0,*) me,trim(name),' Fixing ac ',&
        & ac_coo%get_nrows(),ac_coo%get_ncols(), nza
-  call ac_coo%fix(info)
   call desc_cprol%indxmap%l2gip(ac_coo%ia(1:nza),info)
   call desc_cprol%indxmap%l2gip(ac_coo%ja(1:nza),info)
   call ac_coo%set_nrows(ntaggr)
diff --git a/mlprec/impl/aggregator/mld_z_spmm_bld_inner.f90 b/mlprec/impl/aggregator/mld_z_spmm_bld_inner.f90
index d664e1d1..98aa63f2 100644
--- a/mlprec/impl/aggregator/mld_z_spmm_bld_inner.f90
+++ b/mlprec/impl/aggregator/mld_z_spmm_bld_inner.f90
@@ -170,10 +170,10 @@ subroutine mld_z_spmm_bld_inner(a_csr,desc_a,nlaggr,parms,ac,&
   call csr_restr%free()
   call acsr3%free()
   call ac_csr%mv_to_lcoo(ac_coo,info)
+  call ac_coo%fix(info)
   nza    = ac_coo%get_nzeros()
   if (debug) write(0,*) me,trim(name),' Fixing ac ',&
        & ac_coo%get_nrows(),ac_coo%get_ncols(), nza
-  call ac_coo%fix(info)
   call desc_cprol%indxmap%l2gip(ac_coo%ia(1:nza),info)
   call desc_cprol%indxmap%l2gip(ac_coo%ja(1:nza),info)
   call ac_coo%set_nrows(ntaggr)