all methods implementations for psb_d_oacc_csr_sparse_mat

openacc/Makefile

@@ -1,34 +1,32 @@
 include ../Make.inc
 
-# Compilers and flags
+
 #CC=mpicc
 #FC=mpif90
 #FCOPT=-O0 -march=native
 #OFFLOAD=-fopenacc -foffload=nvptx-none="-march=sm_70"
 
-# Directories
 LIBDIR=../lib
 INCDIR=../include
 MODDIR=../modules
 IMPLDIR=./impl 
 
-# Include and library paths
 INCLUDES=-I$(LIBDIR) -I$(INCDIR) -I$(MODDIR) 
 FINCLUDES=$(FMFLAG). $(FMFLAG)$(INCDIR) $(FMFLAG)$(MODDIR) $(FIFLAG). 
 CINCLUDES=
 #LIBS=-L$(LIBDIR) -lpsb_util -lpsb_ext -lpsb_base -lopenblas -lmetis
 
-# Source files
+
 FOBJS= psb_i_oacc_vect_mod.o psb_d_oacc_vect_mod.o \
 	psb_oacc_mod.o  psb_d_oacc_csr_mat_mod.o \
 	psb_oacc_env_mod.o
 
-# Library name
+
 LIBNAME=libpsb_openacc.a
 
 OBJS=$(COBJS) $(FOBJS)
 
-# Rules
+
 lib: objs ilib 
 	ar cur $(LIBNAME) $(OBJS)
 	/bin/cp -p $(LIBNAME) $(LIBDIR)

openacc/impl/Makefile

@@ -9,7 +9,13 @@ MODDIR=../../modules
 FINCLUDES=$(FMFLAG).. $(FMFLAG)$(MODDIR) $(FMFLAG)$(INCDIR) $(FIFLAG).. 
 LIBNAME=libpsb_openacc.a
 
-OBJS= psb_d_oacc_csr_vect_mv.o psb_d_oacc_mlt_v_2.o psb_d_oacc_mlt_v.o
+OBJS= psb_d_oacc_csr_vect_mv.o psb_d_oacc_csr_inner_vect_sv.o \
+	psb_d_oacc_csr_csmm.o psb_d_oacc_csr_csmv.o psb_d_oacc_csr_scals.o \
+	psb_d_oacc_csr_scal.o psb_d_oacc_csr_allocate_mnnz.o \
+	psb_d_oacc_csr_reallocate_nz.o psb_d_oacc_csr_cp_from_coo.o \
+	psb_d_oacc_csr_cp_from_fmt.o psb_d_oacc_csr_mv_from_coo \
+	psb_d_oacc_csr_mv_from_fmt psb_d_oacc_csr_mold.o \
+	psb_d_oacc_mlt_v_2.o psb_d_oacc_mlt_v.o
 
 objs: $(OBJS)
 

openacc/impl/psb_d_oacc_csr_allocate_mnnz.F90

@@ -0,0 +1,34 @@
+subroutine psb_d_oacc_csr_allocate_mnnz(m, n, a, nz)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_allocate_mnnz
+    implicit none 
+    integer(psb_ipk_), intent(in) :: m, n
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    integer(psb_ipk_), intent(in), optional :: nz
+    integer(psb_ipk_) :: info
+    integer(psb_ipk_) :: err_act, nz_
+    character(len=20)  :: name='allocate_mnz'
+    logical, parameter :: debug=.false.
+  
+    call psb_erractionsave(err_act)
+    info = psb_success_
+  
+    call a%psb_d_csr_sparse_mat%allocate(m, n, nz)
+    
+    if (.not.allocated(a%val)) then
+      allocate(a%val(nz))
+      allocate(a%ja(nz))
+      allocate(a%irp(m+1))
+    end if
+  
+    call a%set_dev()
+    if (info /= 0) goto 9999
+  
+    call psb_erractionrestore(err_act)
+    return
+  
+  9999 call psb_error_handler(err_act)
+    return
+  
+end subroutine psb_d_oacc_csr_allocate_mnnz
+  

openacc/impl/psb_d_oacc_csr_cp_from_coo.F90

@@ -0,0 +1,25 @@
+subroutine psb_d_oacc_csr_cp_from_coo(a, b, info)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_cp_from_coo
+    implicit none
+  
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    class(psb_d_coo_sparse_mat), intent(in)         :: b
+    integer(psb_ipk_), intent(out)                  :: info
+  
+    info = psb_success_
+  
+    call a%psb_d_csr_sparse_mat%cp_from_coo(b, info)
+    if (info /= 0) goto 9999
+  
+    call a%set_dev()
+    if (info /= 0) goto 9999
+  
+    return
+  
+  9999 continue
+    info = psb_err_alloc_dealloc_
+    return
+  
+  end subroutine psb_d_oacc_csr_cp_from_coo
+  

openacc/impl/psb_d_oacc_csr_cp_from_fmt.F90

@@ -0,0 +1,23 @@
+subroutine psb_d_oacc_csr_cp_from_fmt(a, b, info)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_cp_from_fmt
+    implicit none 
+  
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    class(psb_d_base_sparse_mat), intent(in) :: b
+    integer(psb_ipk_), intent(out)            :: info
+  
+    info = psb_success_
+  
+    select type(b)
+    type is (psb_d_coo_sparse_mat)
+      call a%cp_from_coo(b, info)
+    class default
+      call a%psb_d_csr_sparse_mat%cp_from_fmt(b, info)
+      if (info /= 0) return
+  
+      !$acc update device(a%val, a%ja, a%irp)
+    end select
+  
+end subroutine psb_d_oacc_csr_cp_from_fmt
+  

openacc/impl/psb_d_oacc_csr_csmm.F90

@@ -0,0 +1,86 @@
+subroutine psb_d_oacc_csr_csmm(alpha, a, x, beta, y, info, trans)
+    use psb_base_mod
+    use elldev_mod
+    use psb_vectordev_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_csmm
+    implicit none
+    class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+    real(psb_dpk_), intent(in)          :: alpha, beta
+    real(psb_dpk_), intent(in)          :: x(:,:)
+    real(psb_dpk_), intent(inout)       :: y(:,:)
+    integer(psb_ipk_), intent(out)       :: info
+    character, optional, intent(in)      :: trans
+  
+    character :: trans_
+    integer(psb_ipk_) :: i, j, m, n,k, nxy
+    logical :: tra
+    integer(psb_ipk_) :: err_act
+    character(len=20) :: name = 'd_oacc_csmm'
+    logical, parameter :: debug = .false.
+  
+    info = psb_success_
+    call psb_erractionsave(err_act)
+  
+    if (present(trans)) then
+      trans_ = trans
+    else
+      trans_ = 'N'
+    end if
+  
+    if (.not.a%is_asb()) then
+      info = psb_err_invalid_mat_state_
+      call psb_errpush(info, name)
+      goto 9999
+    endif
+    tra = (psb_toupper(trans_) == 'T') .or. (psb_toupper(trans_) == 'C')
+  
+    if (tra) then
+      m = a%get_ncols()
+      n = a%get_nrows()
+    else
+      n = a%get_ncols()
+      m = a%get_nrows()
+    end if
+  
+    if (size(x,1) < n) then
+      info = 36
+      call psb_errpush(info, name, i_err = (/3 * ione, n, izero, izero, izero/))
+      goto 9999
+    end if
+  
+    if (size(y,1) < m) then
+      info = 36
+      call psb_errpush(info, name, i_err = (/5 * ione, m, izero, izero, izero/))
+      goto 9999
+    end if
+  
+    if (tra) then
+      call a%psb_d_csr_sparse_mat%spmm(alpha, x, beta, y, info, trans)
+    else
+      nxy = min(size(x,2), size(y,2))
+      
+      !$acc parallel loop collapse(2) present(a, x, y)
+      do j = 1, nxy
+        do i = 1, m
+          y(i,j) = beta * y(i,j)
+        end do
+      end do
+      
+      !$acc parallel loop collapse(2) present(a, x, y)
+      do j = 1, nxy
+        do i = 1, n
+          do k = a%irp(i), a%irp(i+1) - 1
+            y(a%ja(k), j) = y(a%ja(k), j) + alpha * a%val(k) * x(i, j)
+          end do
+        end do
+      end do
+    endif
+  
+    call psb_erractionrestore(err_act)
+    return
+  
+  9999 call psb_error_handler(err_act)
+    return
+  
+  end subroutine psb_d_oacc_csr_csmm
+  

openacc/impl/psb_d_oacc_csr_csmv.F90

@@ -0,0 +1,81 @@
+subroutine psb_d_oacc_csr_csmv(alpha, a, x, beta, y, info, trans)
+    use psb_base_mod
+    use elldev_mod
+    use psb_vectordev_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_csmv
+    implicit none 
+    class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+    real(psb_dpk_), intent(in)          :: alpha, beta
+    real(psb_dpk_), intent(in)          :: x(:)
+    real(psb_dpk_), intent(inout)       :: y(:)
+    integer(psb_ipk_), intent(out)       :: info
+    character, optional, intent(in)      :: trans
+  
+    character :: trans_
+    integer(psb_ipk_) :: i, j, m, n
+    logical :: tra
+    integer(psb_ipk_) :: err_act
+    character(len=20) :: name = 'd_oacc_csmv'
+    logical, parameter :: debug = .false.
+  
+    call psb_erractionsave(err_act)
+    info = psb_success_
+  
+    if (present(trans)) then
+      trans_ = trans
+    else
+      trans_ = 'N'
+    end if
+  
+    if (.not.a%is_asb()) then 
+      info = psb_err_invalid_mat_state_
+      call psb_errpush(info, name)
+      goto 9999
+    endif
+  
+    tra = (psb_toupper(trans_) == 'T') .or. (psb_toupper(trans_) == 'C')
+  
+    if (tra) then 
+      m = a%get_ncols()
+      n = a%get_nrows()
+    else
+      n = a%get_ncols()
+      m = a%get_nrows()
+    end if
+  
+    if (size(x,1) < n) then 
+      info = 36
+      call psb_errpush(info, name, i_err = (/3 * ione, n, izero, izero, izero/))
+      goto 9999
+    end if
+  
+    if (size(y,1) < m) then 
+      info = 36
+      call psb_errpush(info, name, i_err = (/5 * ione, m, izero, izero, izero/))
+      goto 9999
+    end if
+  
+    if (tra) then 
+      call a%psb_d_csr_sparse_mat%spmm(alpha, x, beta, y, info, trans) 
+    else
+      !$acc parallel loop present(a, x, y)
+      do i = 1, m
+        y(i) = beta * y(i)
+      end do
+      
+      !$acc parallel loop present(a, x, y)
+      do i = 1, n
+        do j = a%irp(i), a%irp(i+1) - 1
+          y(a%ja(j)) = y(a%ja(j)) + alpha * a%val(j) * x(i)
+        end do
+      end do
+    endif
+  
+    call psb_erractionrestore(err_act)
+    return
+  
+  9999 call psb_error_handler(err_act)
+    return
+  
+  end subroutine psb_d_oacc_csr_csmv
+  

openacc/impl/psb_d_oacc_csr_inner_vect_sv.F90

@@ -0,0 +1,84 @@
+subroutine psb_d_oacc_csr_inner_vect_sv(alpha, a, x, beta, y, info, trans)
+    use psb_base_mod
+    use elldev_mod
+    use psb_vectordev_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_inner_vect_sv
+    use psb_d_oacc_vect_mod
+    implicit none
+    class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+    real(psb_dpk_), intent(in) :: alpha, beta
+    class(psb_d_base_vect_type), intent(inout) :: x, y
+    integer(psb_ipk_), intent(out) :: info
+    character, optional, intent(in) :: trans
+  
+    real(psb_dpk_), allocatable :: rx(:), ry(:)
+    logical :: tra
+    character :: trans_
+    integer(psb_ipk_) :: err_act
+    character(len=20) :: name = 'd_oacc_csr_inner_vect_sv'
+    logical, parameter :: debug = .false.
+    integer(psb_ipk_) :: i
+  
+    call psb_get_erraction(err_act)
+    info = psb_success_
+  
+    if (present(trans)) then
+      trans_ = trans
+    else
+      trans_ = 'N'
+    end if
+  
+    if (.not.a%is_asb()) then
+      info = psb_err_invalid_mat_state_
+      call psb_errpush(info, name)
+      goto 9999
+    endif
+  
+    tra = (psb_toupper(trans_) == 'T') .or. (psb_toupper(trans_) == 'C')
+  
+    if (tra .or. (beta /= dzero)) then
+      call x%sync()
+      call y%sync()
+      call a%psb_d_csr_sparse_mat%inner_spsm(alpha, x, beta, y, info, trans)
+      call y%set_host()
+    else
+      select type (xx => x)
+      type is (psb_d_vect_oacc)
+        select type(yy => y)
+        type is (psb_d_vect_oacc)
+          if (xx%is_host()) call xx%sync()
+          if (beta /= dzero) then
+            if (yy%is_host()) call yy%sync()
+          end if
+          !$acc parallel loop present(a, xx, yy)
+          do i = 1, size(a%val)
+            yy%v(i) = alpha * a%val(i) * xx%v(a%ja(i)) + beta * yy%v(i)
+          end do
+          call yy%set_dev()
+        class default
+          rx = xx%get_vect()
+          ry = y%get_vect()
+          call a%psb_d_csr_sparse_mat%inner_spsm(alpha, rx, beta, ry, info)
+          call y%bld(ry)
+        end select
+      class default
+        rx = x%get_vect()
+        ry = y%get_vect()
+        call a%psb_d_csr_sparse_mat%inner_spsm(alpha, rx, beta, ry, info)
+        call y%bld(ry)
+      end select
+    endif
+  
+    if (info /= psb_success_) then
+      info = psb_err_from_subroutine_
+      call psb_errpush(info, name, a_err = 'csrg_vect_sv')
+      goto 9999
+    endif
+  
+    call psb_erractionrestore(err_act)
+    return
+  
+  9999 call psb_error_handler(err_act)
+    return
+  end subroutine psb_d_oacc_csr_inner_vect_sv
+  

openacc/impl/psb_d_oacc_csr_mold.F90

@@ -0,0 +1,33 @@
+subroutine psb_d_oacc_csr_mold(a, b, info)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_mold
+    implicit none 
+    class(psb_d_oacc_csr_sparse_mat), intent(in)                 :: a
+    class(psb_d_base_sparse_mat), intent(inout), allocatable :: b
+    integer(psb_ipk_), intent(out)                    :: info
+    integer(psb_ipk_) :: err_act
+    character(len=20)  :: name='csr_mold'
+    logical, parameter :: debug=.false.
+  
+    call psb_get_erraction(err_act)
+    
+    info = 0 
+    if (allocated(b)) then 
+      call b%free()
+      deallocate(b, stat=info)
+    end if
+    if (info == 0) allocate(psb_d_oacc_csr_sparse_mat :: b, stat=info)
+  
+    if (info /= psb_success_) then 
+      info = psb_err_alloc_dealloc_ 
+      call psb_errpush(info, name)
+      goto 9999
+    end if
+    return
+  
+  9999 call psb_error_handler(err_act)
+  
+    return
+  
+  end subroutine psb_d_oacc_csr_mold
+  

openacc/impl/psb_d_oacc_csr_mv_from_coo.F90

@@ -0,0 +1,24 @@
+subroutine psb_d_oacc_csr_mv_from_coo(a, b, info)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_mv_from_coo
+    implicit none 
+  
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    class(psb_d_coo_sparse_mat), intent(inout)  :: b
+    integer(psb_ipk_), intent(out)              :: info
+  
+    info = psb_success_
+  
+    call a%psb_d_csr_sparse_mat%mv_from_coo(b, info)
+    if (info /= 0) goto 9999
+  
+    !$acc update device(a%val, a%ja, a%irp)
+  
+    return
+  
+  9999 continue
+    info = psb_err_alloc_dealloc_
+    return
+  
+end subroutine psb_d_oacc_csr_mv_from_coo
+  

openacc/impl/psb_d_oacc_csr_mv_from_fmt.F90

@@ -0,0 +1,23 @@
+subroutine psb_d_oacc_csr_mv_from_fmt(a, b, info)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_mv_from_fmt
+    implicit none 
+  
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    class(psb_d_base_sparse_mat), intent(inout) :: b
+    integer(psb_ipk_), intent(out)              :: info
+  
+    info = psb_success_
+  
+    select type(b)
+    type is (psb_d_coo_sparse_mat)
+      call a%mv_from_coo(b, info)
+    class default
+      call a%psb_d_csr_sparse_mat%mv_from_fmt(b, info)
+      if (info /= 0) return
+  
+      !$acc update device(a%val, a%ja, a%irp)
+    end select
+  
+end subroutine psb_d_oacc_csr_mv_from_fmt
+  

openacc/impl/psb_d_oacc_csr_reallocate_nz.F90

@@ -0,0 +1,27 @@
+subroutine psb_d_oacc_csr_reallocate_nz(nz, a)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_reallocate_nz
+    implicit none 
+    integer(psb_ipk_), intent(in) :: nz
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    integer(psb_ipk_) :: info
+    integer(psb_ipk_) :: err_act
+    character(len=20)  :: name='d_oacc_csr_reallocate_nz'
+    logical, parameter :: debug=.false.
+  
+    call psb_erractionsave(err_act)
+    info = psb_success_
+  
+    call a%psb_d_csr_sparse_mat%reallocate(nz)
+  
+    call a%set_dev()
+    if (info /= 0) goto 9999
+  
+    call psb_erractionrestore(err_act)
+    return
+  
+  9999 call psb_error_handler(err_act)
+    return
+  
+  end subroutine psb_d_oacc_csr_reallocate_nz
+  

openacc/impl/psb_d_oacc_csr_scal.F90

@@ -0,0 +1,52 @@
+subroutine psb_d_oacc_csr_scal(d, a, info, side)
+    use psb_base_mod
+    use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_scal
+    implicit none 
+    class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+    real(psb_dpk_), intent(in)      :: d(:)
+    integer(psb_ipk_), intent(out)  :: info
+    character, intent(in), optional :: side
+  
+    integer(psb_ipk_)  :: err_act
+    character(len=20)  :: name='scal'
+    logical, parameter :: debug=.false.
+    integer(psb_ipk_)  :: i, j
+  
+    info  = psb_success_
+    call psb_erractionsave(err_act)
+  
+    if (a%is_host()) call a%sync()
+  
+    if (present(side)) then
+      if (side == 'L') then
+        !$acc parallel loop present(a, d)
+        do i = 1, a%get_nrows()
+          do j = a%irp(i), a%irp(i+1) - 1
+            a%val(j) = a%val(j) * d(i)
+          end do
+        end do
+      else if (side == 'R') then
+        !$acc parallel loop present(a, d)
+        do i = 1, a%get_ncols()
+          do j = a%irp(i), a%irp(i+1) - 1
+            a%val(j) = a%val(j) * d(a%ja(j))
+          end do
+        end do
+      end if
+    else
+      !$acc parallel loop present(a, d)
+      do i = 1, size(a%val)
+        a%val(i) = a%val(i) * d(i)
+      end do
+    end if
+  
+    call a%set_dev()
+  
+    call psb_erractionrestore(err_act)
+    return
+  
+  9999 call psb_error_handler(err_act)
+    return
+  
+  end subroutine psb_d_oacc_csr_scal
+  

openacc/impl/psb_d_oacc_csr_scals.F90

@@ -0,0 +1,32 @@
+subroutine psb_d_oacc_csr_scals(d, a, info)
+  use psb_base_mod
+  use psb_d_oacc_csr_mat_mod, psb_protect_name => psb_d_oacc_csr_scals 
+  implicit none 
+  class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+  real(psb_dpk_), intent(in)      :: d
+  integer(psb_ipk_), intent(out)  :: info
+
+  integer(psb_ipk_) :: err_act
+  character(len=20)  :: name='scal'
+  logical, parameter :: debug=.false.
+  integer(psb_ipk_) :: i
+
+  info  = psb_success_
+  call psb_erractionsave(err_act)
+
+  if (a%is_host()) call a%sync()
+
+  !$acc parallel loop present(a)
+  do i = 1, size(a%val)
+    a%val(i) = a%val(i) * d
+  end do
+
+  call a%set_dev()
+
+  call psb_erractionrestore(err_act)
+  return
+
+9999 call psb_error_handler(err_act)
+  return
+
+end subroutine psb_d_oacc_csr_scals

openacc/psb_d_oacc_csr_mat_mod.F90

@@ -12,18 +12,69 @@ module psb_d_oacc_csr_mat_mod
     type, extends(psb_d_csr_sparse_mat) :: psb_d_oacc_csr_sparse_mat
         integer(psb_ipk_) :: devstate = is_host
     contains
-        procedure, pass(a) :: all         => d_oacc_csr_all
-        procedure, pass(a) :: is_host     => d_oacc_csr_is_host
-        procedure, pass(a) :: is_sync     => d_oacc_csr_is_sync
-        procedure, pass(a) :: is_dev      => d_oacc_csr_is_dev
-        procedure, pass(a) :: set_host    => d_oacc_csr_set_host
-        procedure, pass(a) :: set_sync    => d_oacc_csr_set_sync
-        procedure, pass(a) :: set_dev     => d_oacc_csr_set_dev
-        procedure, pass(a) :: sync_space  => d_oacc_csr_sync_space
-        procedure, pass(a) :: sync        => d_oacc_csr_sync
-        procedure, pass(a) :: vect_mv     => psb_d_oacc_csr_vect_mv
+        procedure, nopass  :: get_fmt       => d_oacc_csr_get_fmt
+        procedure, pass(a) :: sizeof        => d_oacc_csr_sizeof
+        procedure, pass(a) :: vect_mv       => psb_d_oacc_csr_vect_mv
+        procedure, pass(a) :: in_vect_sv    => psb_d_oacc_csr_inner_vect_sv
+        procedure, pass(a) :: csmm          => psb_d_oacc_csr_csmm
+        procedure, pass(a) :: csmv          => psb_d_oacc_csr_csmv
+        procedure, pass(a) :: scals         => psb_d_oacc_csr_scals
+        procedure, pass(a) :: scalv         => psb_d_oacc_csr_scal
+        procedure, pass(a) :: reallocate_nz => psb_d_oacc_csr_reallocate_nz
+        procedure, pass(a) :: allocate_mnnz => psb_d_oacc_csr_allocate_mnnz
+        procedure, pass(a) :: cp_from_coo   => psb_d_oacc_csr_cp_from_coo
+        procedure, pass(a) :: cp_from_fmt   => psb_d_oacc_csr_cp_from_fmt
+        procedure, pass(a) :: mv_from_coo   => psb_d_oacc_csr_mv_from_coo
+        procedure, pass(a) :: mv_from_fmt   => psb_d_oacc_csr_mv_from_fmt
+        procedure, pass(a) :: free          => d_oacc_csr_free
+        procedure, pass(a) :: mold          => psb_d_oacc_csr_mold
+        procedure, pass(a) :: all           => d_oacc_csr_all
+        procedure, pass(a) :: is_host       => d_oacc_csr_is_host
+        procedure, pass(a) :: is_sync       => d_oacc_csr_is_sync
+        procedure, pass(a) :: is_dev        => d_oacc_csr_is_dev
+        procedure, pass(a) :: set_host      => d_oacc_csr_set_host
+        procedure, pass(a) :: set_sync      => d_oacc_csr_set_sync
+        procedure, pass(a) :: set_dev       => d_oacc_csr_set_dev
+        procedure, pass(a) :: sync_space    => d_oacc_csr_sync_space
+        procedure, pass(a) :: sync          => d_oacc_csr_sync
     end type psb_d_oacc_csr_sparse_mat
 
+    interface 
+        subroutine psb_d_oacc_csr_mold(a,b,info)
+            import :: psb_d_oacc_csr_sparse_mat, psb_d_base_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+            class(psb_d_base_sparse_mat), intent(inout), allocatable :: b
+            integer(psb_ipk_), intent(out) :: info
+        end subroutine psb_d_oacc_csr_mold
+    end interface
+
+    interface
+        subroutine psb_d_oacc_csr_cp_from_fmt(a,b,info)
+            import :: psb_d_oacc_csr_sparse_mat, psb_d_base_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            class(psb_d_base_sparse_mat), intent(in) :: b
+            integer(psb_ipk_), intent(out) :: info
+        end subroutine psb_d_oacc_csr_cp_from_fmt
+    end interface
+
+    interface 
+        subroutine psb_d_oacc_csr_mv_from_coo(a,b,info)
+            import :: psb_d_oacc_csr_sparse_mat, psb_d_coo_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            class(psb_d_coo_sparse_mat), intent(inout) :: b
+            integer(psb_ipk_), intent(out) :: info
+        end subroutine psb_d_oacc_csr_mv_from_coo
+    end interface
+
+    interface
+        subroutine psb_d_oacc_csr_mv_from_fmt(a,b,info)
+            import :: psb_d_oacc_csr_sparse_mat, psb_d_base_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            class(psb_d_base_sparse_mat), intent(inout) :: b
+            integer(psb_ipk_), intent(out) :: info
+        end subroutine psb_d_oacc_csr_mv_from_fmt
+    end interface
+
     interface 
         subroutine psb_d_oacc_csr_vect_mv(alpha, a, x, beta, y, info, trans)
             import :: psb_d_oacc_csr_sparse_mat, psb_dpk_, psb_d_base_vect_type, psb_ipk_
@@ -35,7 +86,130 @@ module psb_d_oacc_csr_mat_mod
         end subroutine psb_d_oacc_csr_vect_mv
     end interface
 
+    interface
+        subroutine psb_d_oacc_csr_inner_vect_sv(alpha, a, x, beta, y, info, trans)
+            import :: psb_d_oacc_csr_sparse_mat, psb_dpk_, psb_d_base_vect_type, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+            real(psb_dpk_), intent(in) :: alpha, beta
+            class(psb_d_base_vect_type), intent(inout) :: x,y
+            integer(psb_ipk_), intent(out) :: info
+            character, optional, intent(in) :: trans
+        end subroutine psb_d_oacc_csr_inner_vect_sv
+    end interface
+
+    interface
+        subroutine psb_d_oacc_csr_csmm(alpha, a, x, beta, y, info, trans)
+            import :: psb_d_oacc_csr_sparse_mat, psb_dpk_, psb_d_base_vect_type, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+            real(psb_dpk_), intent(in) :: alpha, beta, x(:,:)
+            real(psb_dpk_), intent(inout) :: y(:,:)
+            integer(psb_ipk_), intent(out) :: info
+            character, optional, intent(in) :: trans
+        end subroutine psb_d_oacc_csr_csmm
+    end interface
+
+    interface
+        subroutine psb_d_oacc_csr_csmv(alpha, a, x, beta, y, info, trans)
+            import :: psb_d_oacc_csr_sparse_mat, psb_dpk_, psb_d_base_vect_type, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+            real(psb_dpk_), intent(in) :: alpha, beta, x(:)
+            real(psb_dpk_), intent(inout) :: y(:)
+            integer(psb_ipk_), intent(out) :: info
+            character, optional, intent(in) :: trans
+        end subroutine psb_d_oacc_csr_csmv
+    end interface
+            
+    interface
+        subroutine psb_d_oacc_csr_scals(d, a, info)
+            import :: psb_d_oacc_csr_sparse_mat, psb_dpk_, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            real(psb_dpk_), intent(in) :: d
+            integer(psb_ipk_), intent(out) :: info
+        end subroutine psb_d_oacc_csr_scals
+    end interface
+
+    interface 
+        subroutine psb_d_oacc_csr_scal(d,a,info,side)
+            import :: psb_d_oacc_csr_sparse_mat, psb_dpk_, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            real(psb_dpk_), intent(in) :: d(:)
+            integer(psb_ipk_), intent(out) :: info
+            character, optional, intent(in) :: side
+        end subroutine psb_d_oacc_csr_scal
+    end interface
+
+    interface
+        subroutine psb_d_oacc_csr_reallocate_nz(nz,a)
+            import :: psb_d_oacc_csr_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            integer(psb_ipk_), intent(in) :: nz
+        end subroutine psb_d_oacc_csr_reallocate_nz
+    end interface
+
+    interface
+        subroutine psb_d_oacc_csr_allocate_mnnz(m,n,a,nz)
+            import :: psb_d_oacc_csr_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            integer(psb_ipk_), intent(in) :: m,n
+            integer(psb_ipk_), intent(in), optional :: nz
+        end subroutine psb_d_oacc_csr_allocate_mnnz
+    end interface
+
+    interface 
+        subroutine psb_d_oacc_csr_cp_from_coo(a,b,info)
+            import :: psb_d_oacc_csr_sparse_mat, psb_d_coo_sparse_mat, psb_ipk_
+            class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+            class(psb_d_coo_sparse_mat), intent(in) :: b
+            integer(psb_ipk_), intent(out) :: info
+        end subroutine psb_d_oacc_csr_cp_from_coo
+    end interface
+
 contains
+    
+
+    subroutine d_oacc_csr_free(a)
+        use psb_base_mod
+        implicit none 
+        class(psb_d_oacc_csr_sparse_mat), intent(inout) :: a
+        integer(psb_ipk_) :: info
+    
+        if (allocated(a%val)) then
+        !$acc exit data delete(a%val)
+        end if
+        if (allocated(a%ja)) then
+        !$acc exit data delete(a%ja)
+        end if
+        if (allocated(a%irp)) then
+        !$acc exit data delete(a%irp)
+        end if
+    
+        call a%psb_d_csr_sparse_mat%free()
+        
+        return
+    end subroutine d_oacc_csr_free
+    
+    
+
+    function d_oacc_csr_sizeof(a) result(res)
+        implicit none
+        class(psb_d_oacc_csr_sparse_mat), intent(in) :: a
+        integer(psb_epk_) :: res
+
+        if (a%is_dev()) call a%sync()
+        
+        res = 8
+        res = res + psb_sizeof_dp * size(a%val)
+        res = res + psb_sizeof_ip * size(a%irp)
+        res = res + psb_sizeof_ip * size(a%ja)
+
+    end function d_oacc_csr_sizeof
+
+
+    function d_oacc_csr_get_fmt() result(res)
+        implicit none
+        character(len=5) :: res
+        res = 'CSR_oacc'
+    end function d_oacc_csr_get_fmt
 
     subroutine d_oacc_csr_all(m, n, nz, a, info)
         implicit none