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psblas3/base/tools/psb_casb.f90

298 lines
8.9 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_casb.f90
!
! Subroutine: psb_casb_vect, _vect_r2 and _multivect
! Assembles a dense vector, an array of vectors or a multivector
! for PSBLAS routines.
! Since the allocation may have been called with the desciptor
! in the build state we make sure that X has a number of rows
! allowing for the halo indices, reallocating if necessary.
! We also call the halo routine for good measure.
! However, sometimes we need to create temporary vectors whose contents
! will be initialized through some subsequent call to geaxpby or similar;
! for this situation we provide the SCRATCH flag.
!
!
! Arguments:
! x - type(psb_c_vect_type) The matrix to be assembled.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. return code
! mold - type(psb_c_base_vect_type), optional A mold for the inner storage format
! scratch - logical, optional If true, allocate without checking/zeroing contents.
! default: .false.
!
subroutine psb_casb_vect(x, desc_a, info, mold, scratch)
use psb_base_mod, psb_protect_name => psb_casb_vect
implicit none
type(psb_desc_type), intent(in) :: desc_a
type(psb_c_vect_type), intent(inout) :: x
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_vect_type), intent(in), optional :: mold
logical, intent(in), optional :: scratch
! local variables
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np,me
integer(psb_ipk_) :: i1sz,nrow,ncol, err_act
logical :: scratch_
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name,ch_err
info = psb_success_
if (psb_errstatus_fatal()) return
name = 'psb_cgeasb_v'
ctxt = desc_a%get_context()
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
scratch_ = .false.
if (present(scratch)) scratch_ = scratch
call psb_info(ctxt, me, np)
! ....verify blacs grid correctness..
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
else if (.not.desc_a%is_ok()) then
info = psb_err_invalid_cd_state_
call psb_errpush(info,name)
goto 9999
end if
nrow = desc_a%get_local_rows()
ncol = desc_a%get_local_cols()
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': sizes: ',nrow,ncol
if (scratch_) then
call x%free(info)
call x%bld(ncol,mold=mold)
else
call x%asb(ncol,info)
! ..update halo elements..
call psb_halo(x,desc_a,info)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_halo')
goto 9999
end if
call x%cnv(mold)
end if
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psb_casb_vect
subroutine psb_casb_vect_r2(x, desc_a, info, mold, scratch)
use psb_base_mod, psb_protect_name => psb_casb_vect_r2
implicit none
type(psb_desc_type), intent(in) :: desc_a
type(psb_c_vect_type), intent(inout) :: x(:)
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_vect_type), intent(in), optional :: mold
logical, intent(in), optional :: scratch
! local variables
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np,me, i, n
integer(psb_ipk_) :: i1sz,nrow,ncol, err_act
logical :: scratch_
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name,ch_err
info = psb_success_
if (psb_errstatus_fatal()) return
name = 'psb_cgeasb_v'
ctxt = desc_a%get_context()
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
scratch_ = .false.
if (present(scratch)) scratch_ = scratch
call psb_info(ctxt, me, np)
! ....verify blacs grid correctness..
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
else if (.not.desc_a%is_ok()) then
info = psb_err_invalid_cd_state_
call psb_errpush(info,name)
goto 9999
end if
nrow = desc_a%get_local_rows()
ncol = desc_a%get_local_cols()
n = size(x)
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': sizes: ',nrow,ncol
if (scratch_) then
do i=1,n
call x(i)%free(info)
call x(i)%bld(ncol,mold=mold)
end do
else
do i=1, n
call x(i)%asb(ncol,info)
if (info /= 0) exit
! ..update halo elements..
call psb_halo(x(i),desc_a,info)
if (info /= 0) exit
call x(i)%cnv(mold)
end do
if(info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_halo')
goto 9999
end if
end if
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psb_casb_vect_r2
subroutine psb_casb_multivect(x, desc_a, info, mold, scratch,n)
use psb_base_mod, psb_protect_name => psb_casb_multivect
implicit none
type(psb_desc_type), intent(in) :: desc_a
type(psb_c_multivect_type), intent(inout) :: x
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_multivect_type), intent(in), optional :: mold
integer(psb_ipk_), optional, intent(in) :: n
logical, intent(in), optional :: scratch
! local variables
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np,me
integer(psb_ipk_) :: i1sz,nrow,ncol, err_act, n_
logical :: scratch_
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name,ch_err
info = psb_success_
if (psb_errstatus_fatal()) return
name = 'psb_cgeasb'
ctxt = desc_a%get_context()
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
scratch_ = .false.
if (present(scratch)) scratch_ = scratch
if (present(n)) then
n_ = n
else
if (allocated(x%v)) then
n_ = x%v%get_ncols()
else
n_ = 1
end if
endif
call psb_info(ctxt, me, np)
! ....verify blacs grid correctness..
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
else if (.not.desc_a%is_ok()) then
info = psb_err_invalid_cd_state_
call psb_errpush(info,name)
goto 9999
end if
nrow = desc_a%get_local_rows()
ncol = desc_a%get_local_cols()
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': sizes: ',nrow,ncol
if (scratch_) then
call x%free(info)
call x%bld(ncol,n_,mold=mold)
else
call x%asb(ncol,n_,info)
! ..update halo elements..
call psb_halo(x,desc_a,info)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_halo')
goto 9999
end if
if (present(mold)) then
call x%cnv(mold)
end if
end if
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psb_casb_multivect