!!$ !!$ Parallel Sparse BLAS version 3.0 !!$ (C) Copyright 2006, 2007, 2008, 2009, 2010 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ !!$ Redistribution and use in source and binary forms, with or without !!$ modification, are permitted provided that the following conditions !!$ are met: !!$ 1. Redistributions of source code must retain the above copyright !!$ notice, this list of conditions and the following disclaimer. !!$ 2. Redistributions in binary form must reproduce the above copyright !!$ notice, this list of conditions, and the following disclaimer in the !!$ documentation and/or other materials provided with the distribution. !!$ 3. The name of the PSBLAS group or the names of its contributors may !!$ not be used to endorse or promote products derived from this !!$ software without specific written permission. !!$ !!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS !!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED !!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR !!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS !!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR !!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF !!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS !!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN !!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) !!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE !!$ POSSIBILITY OF SUCH DAMAGE. !!$ !!$ ! ! package: psb_s_csc_mat_mod ! ! This module contains the definition of the psb_s_csc_sparse_mat type ! which implements an actual storage format (the CSC in this case) for ! a sparse matrix as well as the related methods (those who are ! specific to the type and could not be defined higher in the ! hierarchy). We are at the bottom level of the inheritance chain. ! ! Please refere to psb_s_base_mat_mod for a detailed description ! of the various methods, and to psb_s_csc_impl for implementation details. ! module psb_s_csc_mat_mod use psb_s_base_mat_mod !> \namespace psb_base_mod \class psb_s_csc_sparse_mat !! \extends psb_s_base_mat_mod::psb_s_base_sparse_mat !! !! psb_s_csc_sparse_mat type and the related methods. !! type, extends(psb_s_base_sparse_mat) :: psb_s_csc_sparse_mat !> Pointers to beginning of cols in IA and VAL. integer(psb_ipk_), allocatable :: icp(:) !> Row indices. integer(psb_ipk_), allocatable :: ia(:) !> Coefficient values. real(psb_spk_), allocatable :: val(:) contains procedure, pass(a) :: get_size => s_csc_get_size procedure, pass(a) :: get_nzeros => s_csc_get_nzeros procedure, nopass :: get_fmt => s_csc_get_fmt procedure, pass(a) :: sizeof => s_csc_sizeof procedure, pass(a) :: s_csmm => psb_s_csc_csmm procedure, pass(a) :: s_csmv => psb_s_csc_csmv procedure, pass(a) :: s_inner_cssm => psb_s_csc_cssm procedure, pass(a) :: s_inner_cssv => psb_s_csc_cssv procedure, pass(a) :: s_scals => psb_s_csc_scals procedure, pass(a) :: s_scal => psb_s_csc_scal procedure, pass(a) :: maxval => psb_s_csc_maxval procedure, pass(a) :: csnmi => psb_s_csc_csnmi procedure, pass(a) :: csnm1 => psb_s_csc_csnm1 procedure, pass(a) :: rowsum => psb_s_csc_rowsum procedure, pass(a) :: arwsum => psb_s_csc_arwsum procedure, pass(a) :: colsum => psb_s_csc_colsum procedure, pass(a) :: aclsum => psb_s_csc_aclsum procedure, pass(a) :: reallocate_nz => psb_s_csc_reallocate_nz procedure, pass(a) :: allocate_mnnz => psb_s_csc_allocate_mnnz procedure, pass(a) :: cp_to_coo => psb_s_cp_csc_to_coo procedure, pass(a) :: cp_from_coo => psb_s_cp_csc_from_coo procedure, pass(a) :: cp_to_fmt => psb_s_cp_csc_to_fmt procedure, pass(a) :: cp_from_fmt => psb_s_cp_csc_from_fmt procedure, pass(a) :: mv_to_coo => psb_s_mv_csc_to_coo procedure, pass(a) :: mv_from_coo => psb_s_mv_csc_from_coo procedure, pass(a) :: mv_to_fmt => psb_s_mv_csc_to_fmt procedure, pass(a) :: mv_from_fmt => psb_s_mv_csc_from_fmt procedure, pass(a) :: csput => psb_s_csc_csput procedure, pass(a) :: get_diag => psb_s_csc_get_diag procedure, pass(a) :: csgetptn => psb_s_csc_csgetptn procedure, pass(a) :: s_csgetrow => psb_s_csc_csgetrow procedure, pass(a) :: get_nz_col => s_csc_get_nz_col procedure, pass(a) :: reinit => psb_s_csc_reinit procedure, pass(a) :: trim => psb_s_csc_trim procedure, pass(a) :: print => psb_s_csc_print procedure, pass(a) :: free => s_csc_free procedure, pass(a) :: mold => psb_s_csc_mold procedure, pass(a) :: psb_s_csc_cp_from generic, public :: cp_from => psb_s_csc_cp_from procedure, pass(a) :: psb_s_csc_mv_from generic, public :: mv_from => psb_s_csc_mv_from end type psb_s_csc_sparse_mat private :: s_csc_get_nzeros, s_csc_free, s_csc_get_fmt, & & s_csc_get_size, s_csc_sizeof, s_csc_get_nz_col !> \memberof psb_s_csc_sparse_mat !| \see psb_base_mat_mod::psb_base_reallocate_nz interface subroutine psb_s_csc_reallocate_nz(nz,a) import :: psb_ipk_, psb_s_csc_sparse_mat integer(psb_ipk_), intent(in) :: nz class(psb_s_csc_sparse_mat), intent(inout) :: a end subroutine psb_s_csc_reallocate_nz end interface !> \memberof psb_s_csc_sparse_mat !| \see psb_base_mat_mod::psb_base_reinit interface subroutine psb_s_csc_reinit(a,clear) import :: psb_ipk_, psb_s_csc_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a logical, intent(in), optional :: clear end subroutine psb_s_csc_reinit end interface !> \memberof psb_s_csc_sparse_mat !| \see psb_base_mat_mod::psb_base_trim interface subroutine psb_s_csc_trim(a) import :: psb_ipk_, psb_s_csc_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a end subroutine psb_s_csc_trim end interface !> \memberof psb_s_csc_sparse_mat !| \see psb_base_mat_mod::psb_base_mold interface subroutine psb_s_csc_mold(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_base_sparse_mat, psb_long_int_k_ class(psb_s_csc_sparse_mat), intent(in) :: a class(psb_s_base_sparse_mat), intent(out), allocatable :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_csc_mold end interface !> \memberof psb_s_csc_sparse_mat !| \see psb_base_mat_mod::psb_base_allocate_mnnz interface subroutine psb_s_csc_allocate_mnnz(m,n,a,nz) import :: psb_ipk_, psb_s_csc_sparse_mat integer(psb_ipk_), intent(in) :: m,n class(psb_s_csc_sparse_mat), intent(inout) :: a integer(psb_ipk_), intent(in), optional :: nz end subroutine psb_s_csc_allocate_mnnz end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_print interface subroutine psb_s_csc_print(iout,a,iv,head,ivr,ivc) import :: psb_ipk_, psb_s_csc_sparse_mat integer(psb_ipk_), intent(in) :: iout class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_ipk_), intent(in), optional :: iv(:) character(len=*), optional :: head integer(psb_ipk_), intent(in), optional :: ivr(:), ivc(:) end subroutine psb_s_csc_print end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cp_to_coo interface subroutine psb_s_cp_csc_to_coo(a,b,info) import :: psb_ipk_, psb_s_coo_sparse_mat, psb_s_csc_sparse_mat class(psb_s_csc_sparse_mat), intent(in) :: a class(psb_s_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_cp_csc_to_coo end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cp_from_coo interface subroutine psb_s_cp_csc_from_coo(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_coo_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a class(psb_s_coo_sparse_mat), intent(in) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_cp_csc_from_coo end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cp_to_fmt interface subroutine psb_s_cp_csc_to_fmt(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_base_sparse_mat class(psb_s_csc_sparse_mat), intent(in) :: a class(psb_s_base_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_cp_csc_to_fmt end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cp_from_fmt interface subroutine psb_s_cp_csc_from_fmt(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_base_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a class(psb_s_base_sparse_mat), intent(in) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_cp_csc_from_fmt end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_mv_to_coo interface subroutine psb_s_mv_csc_to_coo(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_coo_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a class(psb_s_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_mv_csc_to_coo end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_mv_from_coo interface subroutine psb_s_mv_csc_from_coo(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_coo_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a class(psb_s_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_mv_csc_from_coo end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_mv_to_fmt interface subroutine psb_s_mv_csc_to_fmt(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_base_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a class(psb_s_base_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_mv_csc_to_fmt end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_mv_from_fmt interface subroutine psb_s_mv_csc_from_fmt(a,b,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_s_base_sparse_mat class(psb_s_csc_sparse_mat), intent(inout) :: a class(psb_s_base_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_s_mv_csc_from_fmt end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cp_from interface subroutine psb_s_csc_cp_from(a,b) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(inout) :: a type(psb_s_csc_sparse_mat), intent(in) :: b end subroutine psb_s_csc_cp_from end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_mv_from interface subroutine psb_s_csc_mv_from(a,b) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(inout) :: a type(psb_s_csc_sparse_mat), intent(inout) :: b end subroutine psb_s_csc_mv_from end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csput interface subroutine psb_s_csc_csput(nz,ia,ja,val,a,imin,imax,jmin,jmax,info,gtl) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(inout) :: a real(psb_spk_), intent(in) :: val(:) integer(psb_ipk_), intent(in) :: nz,ia(:), ja(:),& & imin,imax,jmin,jmax integer(psb_ipk_), intent(out) :: info integer(psb_ipk_), intent(in), optional :: gtl(:) end subroutine psb_s_csc_csput end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_base_mat_mod::psb_base_csgetptn interface subroutine psb_s_csc_csgetptn(imin,imax,a,nz,ia,ja,info,& & jmin,jmax,iren,append,nzin,rscale,cscale) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_ipk_), intent(in) :: imin,imax integer(psb_ipk_), intent(out) :: nz integer(psb_ipk_), allocatable, intent(inout) :: ia(:), ja(:) integer(psb_ipk_),intent(out) :: info logical, intent(in), optional :: append integer(psb_ipk_), intent(in), optional :: iren(:) integer(psb_ipk_), intent(in), optional :: jmin,jmax, nzin logical, intent(in), optional :: rscale,cscale end subroutine psb_s_csc_csgetptn end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csgetrow interface subroutine psb_s_csc_csgetrow(imin,imax,a,nz,ia,ja,val,info,& & jmin,jmax,iren,append,nzin,rscale,cscale) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_ipk_), intent(in) :: imin,imax integer(psb_ipk_), intent(out) :: nz integer(psb_ipk_), allocatable, intent(inout) :: ia(:), ja(:) real(psb_spk_), allocatable, intent(inout) :: val(:) integer(psb_ipk_),intent(out) :: info logical, intent(in), optional :: append integer(psb_ipk_), intent(in), optional :: iren(:) integer(psb_ipk_), intent(in), optional :: jmin,jmax, nzin logical, intent(in), optional :: rscale,cscale end subroutine psb_s_csc_csgetrow end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csgetblk interface subroutine psb_s_csc_csgetblk(imin,imax,a,b,info,& & jmin,jmax,iren,append,rscale,cscale) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_, psb_s_coo_sparse_mat class(psb_s_csc_sparse_mat), intent(in) :: a class(psb_s_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(in) :: imin,imax integer(psb_ipk_),intent(out) :: info logical, intent(in), optional :: append integer(psb_ipk_), intent(in), optional :: iren(:) integer(psb_ipk_), intent(in), optional :: jmin,jmax logical, intent(in), optional :: rscale,cscale end subroutine psb_s_csc_csgetblk end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cssv interface subroutine psb_s_csc_cssv(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(in) :: alpha, beta, x(:) real(psb_spk_), intent(inout) :: y(:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_s_csc_cssv end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_cssm interface subroutine psb_s_csc_cssm(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(in) :: alpha, beta, x(:,:) real(psb_spk_), intent(inout) :: y(:,:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_s_csc_cssm end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csmv interface subroutine psb_s_csc_csmv(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(in) :: alpha, beta, x(:) real(psb_spk_), intent(inout) :: y(:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_s_csc_csmv end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csmm interface subroutine psb_s_csc_csmm(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(in) :: alpha, beta, x(:,:) real(psb_spk_), intent(inout) :: y(:,:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_s_csc_csmm end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_maxval interface function psb_s_csc_maxval(a) result(res) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_) :: res end function psb_s_csc_maxval end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csnmi interface function psb_s_csc_csnmi(a) result(res) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_) :: res end function psb_s_csc_csnmi end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_csnm1 interface function psb_s_csc_csnm1(a) result(res) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_) :: res end function psb_s_csc_csnm1 end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_rowsum interface subroutine psb_s_csc_rowsum(d,a) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) end subroutine psb_s_csc_rowsum end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_arwsum interface subroutine psb_s_csc_arwsum(d,a) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) end subroutine psb_s_csc_arwsum end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_colsum interface subroutine psb_s_csc_colsum(d,a) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) end subroutine psb_s_csc_colsum end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_aclsum interface subroutine psb_s_csc_aclsum(d,a) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) end subroutine psb_s_csc_aclsum end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_get_diag interface subroutine psb_s_csc_get_diag(a,d,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) integer(psb_ipk_), intent(out) :: info end subroutine psb_s_csc_get_diag end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_scal interface subroutine psb_s_csc_scal(d,a,info,side) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(inout) :: a real(psb_spk_), intent(in) :: d(:) integer(psb_ipk_), intent(out) :: info character, intent(in), optional :: side end subroutine psb_s_csc_scal end interface !> \memberof psb_s_csc_sparse_mat !! \see psb_s_base_mat_mod::psb_s_base_scals interface subroutine psb_s_csc_scals(d,a,info) import :: psb_ipk_, psb_s_csc_sparse_mat, psb_spk_ class(psb_s_csc_sparse_mat), intent(inout) :: a real(psb_spk_), intent(in) :: d integer(psb_ipk_), intent(out) :: info end subroutine psb_s_csc_scals end interface contains ! == =================================== ! ! ! ! Getters ! ! ! ! ! ! == =================================== function s_csc_sizeof(a) result(res) implicit none class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_long_int_k_) :: res res = 8 res = res + psb_sizeof_sp * size(a%val) res = res + psb_sizeof_int * size(a%icp) res = res + psb_sizeof_int * size(a%ia) end function s_csc_sizeof function s_csc_get_fmt() result(res) implicit none character(len=5) :: res res = 'CSC' end function s_csc_get_fmt function s_csc_get_nzeros(a) result(res) implicit none class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_ipk_) :: res res = a%icp(a%get_ncols()+1)-1 end function s_csc_get_nzeros function s_csc_get_size(a) result(res) implicit none class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_ipk_) :: res res = 0 if (allocated(a%ia)) then if (res >= 0) then res = min(res,size(a%ia)) else res = size(a%ia) end if end if if (allocated(a%val)) then if (res >= 0) then res = min(res,size(a%val)) else res = size(a%val) end if end if end function s_csc_get_size function s_csc_get_nz_col(idx,a) result(res) use psb_const_mod implicit none class(psb_s_csc_sparse_mat), intent(in) :: a integer(psb_ipk_), intent(in) :: idx integer(psb_ipk_) :: res res = 0 if ((1<=idx).and.(idx<=a%get_ncols())) then res = a%icp(idx+1)-a%icp(idx) end if end function s_csc_get_nz_col ! == =================================== ! ! ! ! Data management ! ! ! ! ! ! == =================================== subroutine s_csc_free(a) implicit none class(psb_s_csc_sparse_mat), intent(inout) :: a if (allocated(a%icp)) deallocate(a%icp) if (allocated(a%ia)) deallocate(a%ia) if (allocated(a%val)) deallocate(a%val) call a%set_null() call a%set_nrows(izero) call a%set_ncols(izero) return end subroutine s_csc_free end module psb_s_csc_mat_mod