diff --git a/src/modules/psb_prec_type.f90 b/src/modules/psb_prec_type.f90
index ac92ff7e..59e8c4c9 100644
--- a/src/modules/psb_prec_type.f90
+++ b/src/modules/psb_prec_type.f90
@@ -246,7 +246,7 @@ contains
     integer, intent(in) :: ip
     logical             :: is_legal_ml_fact
     
-    is_legal_ml_fact = ((ip>=f_ilu_n_).and.(ip<=f_slu_))
+    is_legal_ml_fact = ((ip>=f_ilu_n_).and.(ip<=f_umf_))
     return
   end function is_legal_ml_fact
   function is_legal_ml_lev(ip)
diff --git a/src/prec/psb_dprecbld.f90 b/src/prec/psb_dprecbld.f90
index 4f3a9e35..9235df7d 100644
--- a/src/prec/psb_dprecbld.f90
+++ b/src/prec/psb_dprecbld.f90
@@ -627,7 +627,7 @@ subroutine psb_umf_bld(a,desc_a,p,info)
   endif
 
   call fort_umf_factor(atmp%m,nzt,&
-       & atmp%aspk,atmp%ia2,atmp%ia1,&
+       & atmp%aspk,atmp%ia1,atmp%ia2,&
        & p%iprcparm(umf_symptr_),p%iprcparm(umf_numptr_),info)
   if(info /= 0) then
      info=4010
@@ -811,6 +811,36 @@ subroutine psb_mlprec_bld(a,desc_a,p,info)
         goto 9999
      end if
 
+  case(f_umf_) 
+    call psb_spall(0,0,p%av(l_pr_),1,info)
+    call psb_spall(0,0,p%av(u_pr_),1,info)
+    call psb_ipcsr2coo(p%av(ac_),info)
+     if(info /= 0) then
+        info=4011
+        call psb_errpush(info,name)
+        goto 9999
+     end if
+    k=0
+    do i=1,p%av(ac_)%infoa(psb_nnz_)
+      if (p%av(ac_)%ia2(i) <= p%av(ac_)%m) then 
+        k = k + 1
+        p%av(ac_)%aspk(k) = p%av(ac_)%aspk(i)
+        p%av(ac_)%ia1(k) = p%av(ac_)%ia1(i)
+        p%av(ac_)%ia2(k) = p%av(ac_)%ia2(i)
+      end if
+    end do
+    p%av(ac_)%infoa(psb_nnz_) = k
+    call psb_ipcoo2csc(p%av(ac_),info)
+    call psb_spinfo(psb_nztotreq_,p%av(ac_),nzg,info)
+    call fort_umf_factor(nrg,nzg,&
+         & p%av(ac_)%aspk,p%av(ac_)%ia1,p%av(ac_)%ia2,&
+         & p%iprcparm(umf_symptr_),p%iprcparm(umf_numptr_),info)
+     if(info /= 0) then
+        info=4011
+        call psb_errpush(info,name)
+        goto 9999
+     end if
+
   case default
      write(0,*) 'Invalid fact type for multi level',(p%iprcparm(f_type_)) 
   end select
diff --git a/src/serial/psb_dfixcoo.f90 b/src/serial/psb_dfixcoo.f90
index 1b14816e..20497fe8 100644
--- a/src/serial/psb_dfixcoo.f90
+++ b/src/serial/psb_dfixcoo.f90
@@ -79,6 +79,7 @@ Subroutine psb_dfixcoo(A,INFO,idir)
     a%infoa(psb_srtd_) = psb_isrtdcoo_
 
     if(debug) write(0,*)'FIXCOO: end second loop'
+
   case(1) !  Col major order
 
     call mrgsrt(nza,a%ia2,iaux,iret)
diff --git a/src/serial/psb_dipcoo2csc.f90 b/src/serial/psb_dipcoo2csc.f90
index 0a05dd55..3f2a10a0 100644
--- a/src/serial/psb_dipcoo2csc.f90
+++ b/src/serial/psb_dipcoo2csc.f90
@@ -45,8 +45,7 @@ subroutine psb_dipcoo2csc(a,info,clshr)
   allocate(iaux(nc+1))
   if(debug) write(0,*)'DIPCOO2CSC: out of fixcoo',nza,nc,size(a%ia2),size(iaux)
 
-  itemp => a%ia1
-  a%ia1 => a%ia2
+  itemp => a%ia2
   a%ia2 => iaux
 
   !
@@ -120,19 +119,24 @@ subroutine psb_dipcoo2csc(a,info,clshr)
         j = j + 1
         if (j > nza) exit
         if (itemp(j) /= icl) then 
+          if (i>nc) then 
+            write(0,*) 'Strange situation in coo2csc: ',i,nc,size(a%ia2),&
+                 & nza,j,itemp(j)
+          end if
           a%ia2(i+1) = j
           icl = itemp(j) 
           i = i + 1
         endif
+        if (i>nc) exit
       enddo outer
       !
       ! Cleanup empty cols at the end
       !
       if (j /= (nza+1)) then 
-        write(0,*) 'IPCOO2CSC : Problem from loop :',j,nza
+        write(0,*) 'IPCOO2CSC : Problem from loop :',j,nza,itemp(j)
       endif
       do 
-        if (i>=nc+1) exit
+        if (i>nc) exit
         a%ia2(i+1) = j
         i = i + 1
       end do
diff --git a/src/serial/psb_dipcoo2csr.f90 b/src/serial/psb_dipcoo2csr.f90
index 964fa355..421f6f66 100644
--- a/src/serial/psb_dipcoo2csr.f90
+++ b/src/serial/psb_dipcoo2csr.f90
@@ -124,6 +124,7 @@ subroutine psb_dipcoo2csr(a,info,rwshr)
           irw = itemp(j) 
           i = i + 1
         endif
+        if (i>nr) exit
       enddo outer
       !
       ! Cleanup empty rows at the end
@@ -132,7 +133,7 @@ subroutine psb_dipcoo2csr(a,info,rwshr)
         write(0,*) 'IPCOO2CSR : Problem from loop :',j,nza
       endif
       do 
-        if (i>=nr+1) exit
+        if (i>nr) exit
         a%ia2(i+1) = j
         i = i + 1
       end do
diff --git a/src/serial/psb_dspinfo.f90 b/src/serial/psb_dspinfo.f90
index b93a853f..7bfa031b 100644
--- a/src/serial/psb_dspinfo.f90
+++ b/src/serial/psb_dspinfo.f90
@@ -20,7 +20,7 @@ subroutine psb_dspinfo(ireq,a,ires,info,iaux)
   integer, intent(out)              :: ires, info
   integer, intent(in), optional     :: iaux
 
-  integer :: i,j,k,ip,jp,nr,irw,nz, err_act, row, ipx, pia, pja, rb,idx
+  integer :: i,j,k,ip,jp,nr,irw,nz, err_act, row, ipx, pia, pja, rb,idx, nc
   integer, pointer :: ia1(:), ia2(:), ia3(:), ja(:)
   character(len=20)                 :: name, ch_err
 
@@ -38,7 +38,10 @@ subroutine psb_dspinfo(ireq,a,ires,info,iaux)
         ires = a%infoa(psb_nnz_)
      else if (a%fida == 'JAD') then 
         ires = a%infoa(psb_nnz_)
-     else
+     else if (a%fida == 'CSC') then 
+        nc   = a%k
+        ires = a%ia2(nc+1)-1
+      else
         ires=-1
         info=136
         ch_err=a%fida(1:3)