You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
4.2 KiB
Fortran
125 lines
4.2 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_cspalloc.f90
|
|
!
|
|
! Subroutine: psb_cspalloc
|
|
! Allocate sparse matrix structure for psblas routines.
|
|
!
|
|
! Arguments:
|
|
! a - type(psb_cspmat_type). The sparse matrix to be allocated.
|
|
! desc_a - type(psb_desc_type). The communication descriptor to be updated.
|
|
! info - integer. Return code.
|
|
! nnz - integer(optional). The number of nonzeroes in the matrix.
|
|
! (local, user estimate)
|
|
!
|
|
subroutine psb_cspalloc(a, desc_a, info, nnz)
|
|
use psb_base_mod, psb_protect_name => psb_cspalloc
|
|
implicit none
|
|
|
|
!....parameters...
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
type(psb_cspmat_type), intent(inout) :: a
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional, intent(in) :: nnz
|
|
|
|
!locals
|
|
integer(psb_ipk_) :: ictxt, np, me, err_act
|
|
integer(psb_ipk_) :: loc_row,loc_col, nnz_, dectype
|
|
integer(psb_lpk_) :: m, n
|
|
integer(psb_ipk_) :: debug_level, debug_unit
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
call psb_erractionsave(err_act)
|
|
if (psb_errstatus_fatal()) then
|
|
info = psb_err_internal_error_ ; goto 9999
|
|
end if
|
|
name = 'psb_cspall'
|
|
debug_unit = psb_get_debug_unit()
|
|
debug_level = psb_get_debug_level()
|
|
|
|
ictxt = desc_a%get_context()
|
|
dectype = desc_a%get_dectype()
|
|
|
|
call psb_info(ictxt, me, np)
|
|
! ....verify blacs grid correctness..
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
|
|
loc_row = desc_a%get_local_rows()
|
|
loc_col = desc_a%get_local_cols()
|
|
m = desc_a%get_global_rows()
|
|
n = desc_a%get_global_cols()
|
|
|
|
!...allocate matrix data...
|
|
if (present(nnz))then
|
|
if (nnz < 0) then
|
|
info=45
|
|
call psb_errpush(info,name,i_err=(/7_psb_ipk_,nnz/))
|
|
goto 9999
|
|
endif
|
|
nnz_ = nnz
|
|
else
|
|
nnz_ = max(1,5*loc_row)
|
|
endif
|
|
|
|
if (debug_level >= psb_debug_ext_) &
|
|
& write(debug_unit,*) me,' ',trim(name), &
|
|
& ':allocating size:',loc_row,loc_col,nnz_
|
|
call a%free()
|
|
!....allocate aspk, ia1, ia2.....
|
|
call a%allocate(loc_row,loc_col,info,nz=nnz_)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
call psb_errpush(info,name,a_err='sp_all')
|
|
goto 9999
|
|
end if
|
|
|
|
if (debug_level >= psb_debug_ext_) &
|
|
& write(debug_unit,*) me,' ',trim(name),': ', &
|
|
& desc_a%get_dectype(),psb_desc_bld_
|
|
|
|
return
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
|
|
end subroutine psb_cspalloc
|