!!$ !!$ Parallel Sparse BLAS version 3.0 !!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012 !!$ 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_c_csr_mat_mod ! ! This module contains the definition of the psb_c_csr_sparse_mat type ! which implements an actual storage format (the CSR 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_c_base_mat_mod for a detailed description ! of the various methods, and to psb_c_csr_impl for implementation details. ! module psb_c_csr_mat_mod use psb_c_base_mat_mod !> \namespace psb_base_mod \class psb_c_csr_sparse_mat !! \extends psb_c_base_mat_mod::psb_c_base_sparse_mat !! !! psb_c_csr_sparse_mat type and the related methods. !! This is a very common storage type, and is the default for assembled !! matrices in our library type, extends(psb_c_base_sparse_mat) :: psb_c_csr_sparse_mat !> Pointers to beginning of rows in JA and VAL. integer(psb_ipk_), allocatable :: irp(:) !> Column indices. integer(psb_ipk_), allocatable :: ja(:) !> Coefficient values. complex(psb_spk_), allocatable :: val(:) contains procedure, pass(a) :: get_size => c_csr_get_size procedure, pass(a) :: get_nzeros => c_csr_get_nzeros procedure, nopass :: get_fmt => c_csr_get_fmt procedure, pass(a) :: sizeof => c_csr_sizeof procedure, pass(a) :: csmm => psb_c_csr_csmm procedure, pass(a) :: csmv => psb_c_csr_csmv procedure, pass(a) :: inner_cssm => psb_c_csr_cssm procedure, pass(a) :: inner_cssv => psb_c_csr_cssv procedure, pass(a) :: scals => psb_c_csr_scals procedure, pass(a) :: scalv => psb_c_csr_scal procedure, pass(a) :: maxval => psb_c_csr_maxval procedure, pass(a) :: spnmi => psb_c_csr_csnmi procedure, pass(a) :: spnm1 => psb_c_csr_csnm1 procedure, pass(a) :: rowsum => psb_c_csr_rowsum procedure, pass(a) :: arwsum => psb_c_csr_arwsum procedure, pass(a) :: colsum => psb_c_csr_colsum procedure, pass(a) :: aclsum => psb_c_csr_aclsum procedure, pass(a) :: reallocate_nz => psb_c_csr_reallocate_nz procedure, pass(a) :: allocate_mnnz => psb_c_csr_allocate_mnnz procedure, pass(a) :: cp_to_coo => psb_c_cp_csr_to_coo procedure, pass(a) :: cp_from_coo => psb_c_cp_csr_from_coo procedure, pass(a) :: cp_to_fmt => psb_c_cp_csr_to_fmt procedure, pass(a) :: cp_from_fmt => psb_c_cp_csr_from_fmt procedure, pass(a) :: mv_to_coo => psb_c_mv_csr_to_coo procedure, pass(a) :: mv_from_coo => psb_c_mv_csr_from_coo procedure, pass(a) :: mv_to_fmt => psb_c_mv_csr_to_fmt procedure, pass(a) :: mv_from_fmt => psb_c_mv_csr_from_fmt procedure, pass(a) :: csput => psb_c_csr_csput procedure, pass(a) :: get_diag => psb_c_csr_get_diag procedure, pass(a) :: csgetptn => psb_c_csr_csgetptn procedure, pass(a) :: csgetrow => psb_c_csr_csgetrow procedure, pass(a) :: get_nz_row => c_csr_get_nz_row procedure, pass(a) :: reinit => psb_c_csr_reinit procedure, pass(a) :: trim => psb_c_csr_trim procedure, pass(a) :: print => psb_c_csr_print procedure, pass(a) :: free => c_csr_free procedure, pass(a) :: mold => psb_c_csr_mold procedure, pass(a) :: psb_c_csr_cp_from generic, public :: cp_from => psb_c_csr_cp_from procedure, pass(a) :: psb_c_csr_mv_from generic, public :: mv_from => psb_c_csr_mv_from end type psb_c_csr_sparse_mat private :: c_csr_get_nzeros, c_csr_free, c_csr_get_fmt, & & c_csr_get_size, c_csr_sizeof, c_csr_get_nz_row !> \memberof psb_c_csr_sparse_mat !| \see psb_base_mat_mod::psb_base_reallocate_nz interface subroutine psb_c_csr_reallocate_nz(nz,a) import :: psb_ipk_, psb_c_csr_sparse_mat integer(psb_ipk_), intent(in) :: nz class(psb_c_csr_sparse_mat), intent(inout) :: a end subroutine psb_c_csr_reallocate_nz end interface !> \memberof psb_c_csr_sparse_mat !| \see psb_base_mat_mod::psb_base_reinit interface subroutine psb_c_csr_reinit(a,clear) import :: psb_ipk_, psb_c_csr_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a logical, intent(in), optional :: clear end subroutine psb_c_csr_reinit end interface !> \memberof psb_c_csr_sparse_mat !| \see psb_base_mat_mod::psb_base_trim interface subroutine psb_c_csr_trim(a) import :: psb_ipk_, psb_c_csr_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a end subroutine psb_c_csr_trim end interface !> \memberof psb_c_csr_sparse_mat !| \see psb_base_mat_mod::psb_base_mold interface subroutine psb_c_csr_mold(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_base_sparse_mat, psb_long_int_k_ class(psb_c_csr_sparse_mat), intent(in) :: a class(psb_c_base_sparse_mat), intent(out), allocatable :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_csr_mold end interface !> \memberof psb_c_csr_sparse_mat !| \see psb_base_mat_mod::psb_base_allocate_mnnz interface subroutine psb_c_csr_allocate_mnnz(m,n,a,nz) import :: psb_ipk_, psb_c_csr_sparse_mat integer(psb_ipk_), intent(in) :: m,n class(psb_c_csr_sparse_mat), intent(inout) :: a integer(psb_ipk_), intent(in), optional :: nz end subroutine psb_c_csr_allocate_mnnz end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_print interface subroutine psb_c_csr_print(iout,a,iv,head,ivr,ivc) import :: psb_ipk_, psb_c_csr_sparse_mat integer(psb_ipk_), intent(in) :: iout class(psb_c_csr_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_c_csr_print end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cp_to_coo interface subroutine psb_c_cp_csr_to_coo(a,b,info) import :: psb_ipk_, psb_c_coo_sparse_mat, psb_c_csr_sparse_mat class(psb_c_csr_sparse_mat), intent(in) :: a class(psb_c_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_cp_csr_to_coo end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cp_from_coo interface subroutine psb_c_cp_csr_from_coo(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_coo_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a class(psb_c_coo_sparse_mat), intent(in) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_cp_csr_from_coo end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cp_to_fmt interface subroutine psb_c_cp_csr_to_fmt(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_base_sparse_mat class(psb_c_csr_sparse_mat), intent(in) :: a class(psb_c_base_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_cp_csr_to_fmt end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cp_from_fmt interface subroutine psb_c_cp_csr_from_fmt(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_base_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a class(psb_c_base_sparse_mat), intent(in) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_cp_csr_from_fmt end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_mv_to_coo interface subroutine psb_c_mv_csr_to_coo(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_coo_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a class(psb_c_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_mv_csr_to_coo end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_mv_from_coo interface subroutine psb_c_mv_csr_from_coo(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_coo_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a class(psb_c_coo_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_mv_csr_from_coo end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_mv_to_fmt interface subroutine psb_c_mv_csr_to_fmt(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_base_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a class(psb_c_base_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_mv_csr_to_fmt end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_mv_from_fmt interface subroutine psb_c_mv_csr_from_fmt(a,b,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_c_base_sparse_mat class(psb_c_csr_sparse_mat), intent(inout) :: a class(psb_c_base_sparse_mat), intent(inout) :: b integer(psb_ipk_), intent(out) :: info end subroutine psb_c_mv_csr_from_fmt end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cp_from interface subroutine psb_c_csr_cp_from(a,b) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(inout) :: a type(psb_c_csr_sparse_mat), intent(in) :: b end subroutine psb_c_csr_cp_from end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_mv_from interface subroutine psb_c_csr_mv_from(a,b) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(inout) :: a type(psb_c_csr_sparse_mat), intent(inout) :: b end subroutine psb_c_csr_mv_from end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csput interface subroutine psb_c_csr_csput(nz,ia,ja,val,a,imin,imax,jmin,jmax,info,gtl) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(inout) :: a complex(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_c_csr_csput end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_base_mat_mod::psb_base_csgetptn interface subroutine psb_c_csr_csgetptn(imin,imax,a,nz,ia,ja,info,& & jmin,jmax,iren,append,nzin,rscale,cscale) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_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_c_csr_csgetptn end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csgetrow interface subroutine psb_c_csr_csgetrow(imin,imax,a,nz,ia,ja,val,info,& & jmin,jmax,iren,append,nzin,rscale,cscale) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_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(:) complex(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_c_csr_csgetrow end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csgetblk interface subroutine psb_c_csr_csgetblk(imin,imax,a,b,info,& & jmin,jmax,iren,append,rscale,cscale) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_, psb_c_coo_sparse_mat class(psb_c_csr_sparse_mat), intent(in) :: a class(psb_c_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_c_csr_csgetblk end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cssv interface subroutine psb_c_csr_cssv(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(in) :: alpha, beta, x(:) complex(psb_spk_), intent(inout) :: y(:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_c_csr_cssv end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_cssm interface subroutine psb_c_csr_cssm(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(in) :: alpha, beta, x(:,:) complex(psb_spk_), intent(inout) :: y(:,:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_c_csr_cssm end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csmv interface subroutine psb_c_csr_csmv(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(in) :: alpha, beta, x(:) complex(psb_spk_), intent(inout) :: y(:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_c_csr_csmv end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csmm interface subroutine psb_c_csr_csmm(alpha,a,x,beta,y,info,trans) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(in) :: alpha, beta, x(:,:) complex(psb_spk_), intent(inout) :: y(:,:) integer(psb_ipk_), intent(out) :: info character, optional, intent(in) :: trans end subroutine psb_c_csr_csmm end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_maxval interface function psb_c_csr_maxval(a) result(res) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a real(psb_spk_) :: res end function psb_c_csr_maxval end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csnmi interface function psb_c_csr_csnmi(a) result(res) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a real(psb_spk_) :: res end function psb_c_csr_csnmi end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_csnm1 interface function psb_c_csr_csnm1(a) result(res) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a real(psb_spk_) :: res end function psb_c_csr_csnm1 end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_rowsum interface subroutine psb_c_csr_rowsum(d,a) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(out) :: d(:) end subroutine psb_c_csr_rowsum end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_arwsum interface subroutine psb_c_csr_arwsum(d,a) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) end subroutine psb_c_csr_arwsum end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_colsum interface subroutine psb_c_csr_colsum(d,a) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(out) :: d(:) end subroutine psb_c_csr_colsum end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_aclsum interface subroutine psb_c_csr_aclsum(d,a) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a real(psb_spk_), intent(out) :: d(:) end subroutine psb_c_csr_aclsum end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_get_diag interface subroutine psb_c_csr_get_diag(a,d,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(in) :: a complex(psb_spk_), intent(out) :: d(:) integer(psb_ipk_), intent(out) :: info end subroutine psb_c_csr_get_diag end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_scal interface subroutine psb_c_csr_scal(d,a,info,side) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(inout) :: a complex(psb_spk_), intent(in) :: d(:) integer(psb_ipk_), intent(out) :: info character, intent(in), optional :: side end subroutine psb_c_csr_scal end interface !> \memberof psb_c_csr_sparse_mat !! \see psb_c_base_mat_mod::psb_c_base_scals interface subroutine psb_c_csr_scals(d,a,info) import :: psb_ipk_, psb_c_csr_sparse_mat, psb_spk_ class(psb_c_csr_sparse_mat), intent(inout) :: a complex(psb_spk_), intent(in) :: d integer(psb_ipk_), intent(out) :: info end subroutine psb_c_csr_scals end interface contains ! == =================================== ! ! ! ! Getters ! ! ! ! ! ! == =================================== function c_csr_sizeof(a) result(res) implicit none class(psb_c_csr_sparse_mat), intent(in) :: a integer(psb_long_int_k_) :: res res = 8 res = res + (2*psb_sizeof_sp) * size(a%val) res = res + psb_sizeof_int * size(a%irp) res = res + psb_sizeof_int * size(a%ja) end function c_csr_sizeof function c_csr_get_fmt() result(res) implicit none character(len=5) :: res res = 'CSR' end function c_csr_get_fmt function c_csr_get_nzeros(a) result(res) implicit none class(psb_c_csr_sparse_mat), intent(in) :: a integer(psb_ipk_) :: res res = a%irp(a%get_nrows()+1)-1 end function c_csr_get_nzeros function c_csr_get_size(a) result(res) implicit none class(psb_c_csr_sparse_mat), intent(in) :: a integer(psb_ipk_) :: res res = -1 if (allocated(a%ja)) then res = size(a%ja) 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 c_csr_get_size function c_csr_get_nz_row(idx,a) result(res) implicit none class(psb_c_csr_sparse_mat), intent(in) :: a integer(psb_ipk_), intent(in) :: idx integer(psb_ipk_) :: res res = 0 if ((1<=idx).and.(idx<=a%get_nrows())) then res = a%irp(idx+1)-a%irp(idx) end if end function c_csr_get_nz_row ! == =================================== ! ! ! ! Data management ! ! ! ! ! ! == =================================== subroutine c_csr_free(a) implicit none class(psb_c_csr_sparse_mat), intent(inout) :: a if (allocated(a%irp)) deallocate(a%irp) if (allocated(a%ja)) deallocate(a%ja) if (allocated(a%val)) deallocate(a%val) call a%set_null() call a%set_nrows(izero) call a%set_ncols(izero) return end subroutine c_csr_free end module psb_c_csr_mat_mod