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psblas3/base/psblas/psb_dgetmatinfo.f90

255 lines
6.9 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! 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.
!
!
! File: psb_dgetmatinfo.f90
!
! This function containts the implementation for obtaining information on the
! paralle sparse matrix
!
function psb_dget_nnz(a,desc_a,info) result(res)
use psb_base_mod, psb_protect_name => psb_dget_nnz
use psi_mod
use mpi
implicit none
integer(psb_lpk_) :: res
type(psb_dspmat_type), intent(in) :: a
type(psb_desc_type), intent (in) :: desc_a
integer(psb_ipk_), intent(out) :: info
! locals
integer(psb_ipk_) :: ictxt, np, me,&
& err_act, iia, jja
integer(psb_lpk_) :: m,n,ia,ja,localnnz
character(len=20) :: name, ch_err
!
name='psb_dget_nnz'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
! Check for matrix correctness
call psb_chkmat(m,n,ia,ja,desc_a,info,iia,jja)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkmat'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
localnnz = a%get_nzeros()
call MPI_ALLREDUCE(localnnz, res, 1, MPI_LONG, MPI_SUM, ictxt, info)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function
function psb_d_is_matupd(a,desc_a,info) result(res)
use psb_base_mod, psb_protect_name => psb_d_is_matupd
use psi_mod
implicit none
logical :: res
type(psb_dspmat_type), intent(in) :: a
type(psb_desc_type), intent (in) :: desc_a
integer(psb_ipk_), intent(out) :: info
! locals
integer(psb_ipk_) :: ictxt, np, me,&
& err_act, iia, jja
integer(psb_lpk_) :: m,n,ia,ja,localnnz
character(len=20) :: name, ch_err
!
name='psb_dis_matupd'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
! Check for matrix correctness
call psb_chkmat(m,n,ia,ja,desc_a,info,iia,jja)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkmat'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
res = a%is_upd()
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function
function psb_d_is_matasb(a,desc_a,info) result(res)
use psb_base_mod, psb_protect_name => psb_d_is_matasb
use psi_mod
implicit none
logical :: res
type(psb_dspmat_type), intent(in) :: a
type(psb_desc_type), intent (in) :: desc_a
integer(psb_ipk_), intent(out) :: info
! locals
integer(psb_ipk_) :: ictxt, np, me,&
& err_act, iia, jja
integer(psb_lpk_) :: m,n,ia,ja,localnnz
character(len=20) :: name, ch_err
!
name='psb_dis_matasb'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
! Check for matrix correctness
call psb_chkmat(m,n,ia,ja,desc_a,info,iia,jja)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkmat'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
res = a%is_asb()
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function
function psb_d_is_matbld(a,desc_a,info) result(res)
use psb_base_mod, psb_protect_name => psb_d_is_matbld
use psi_mod
implicit none
logical :: res
type(psb_dspmat_type), intent(in) :: a
type(psb_desc_type), intent (in) :: desc_a
integer(psb_ipk_), intent(out) :: info
! locals
integer(psb_ipk_) :: ictxt, np, me,&
& err_act, iia, jja
integer(psb_lpk_) :: m,n,ia,ja,localnnz
character(len=20) :: name, ch_err
!
name='psb_dis_matbld'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
! Check for matrix correctness
call psb_chkmat(m,n,ia,ja,desc_a,info,iia,jja)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkmat'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
res = a%is_bld()
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end function