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309 lines
8.6 KiB
Fortran
309 lines
8.6 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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!
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! File: psb_zallc.f90
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!
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! Function: psb_zalloc
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! Allocates dense matrix for PSBLAS routines.
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! The descriptor may be in either the build or assembled state.
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!
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! Arguments:
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! x - the matrix to be allocated.
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! desc_a - the communication descriptor.
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! info - Return code
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! n - optional number of columns.
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! lb - optional lower bound on column indices
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subroutine psb_zalloc_vect(x, desc_a,info,n)
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use psb_base_mod, psb_protect_name => psb_zalloc_vect
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use psi_mod
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implicit none
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!....parameters...
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type(psb_z_vect_type), intent(out) :: x
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_),intent(out) :: info
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integer(psb_ipk_), optional, intent(in) :: n
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!locals
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integer(psb_ipk_) :: np,me,nr,i,err_act
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integer(psb_ipk_) :: ictxt
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integer(psb_ipk_) :: debug_level, debug_unit
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character(len=20) :: name
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info=psb_success_
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if (psb_errstatus_fatal()) return
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name='psb_geall'
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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! ....verify blacs grid correctness..
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if (np == -1) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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!... check m and n parameters....
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if (.not.desc_a%is_ok()) then
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info = psb_err_invalid_cd_state_
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call psb_errpush(info,name)
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goto 9999
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end if
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! As this is a rank-1 array, optional parameter N is actually ignored.
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!....allocate x .....
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if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
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nr = max(1,desc_a%get_local_cols())
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else if (psb_is_bld_desc(desc_a)) then
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nr = max(1,desc_a%get_local_rows())
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else
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='Invalid desc_a')
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goto 9999
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endif
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allocate(psb_z_base_vect_type :: x%v, stat=info)
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if (info == 0) call x%all(nr,info)
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if (psb_errstatus_fatal()) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/nr/),a_err='real(psb_spk_)')
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goto 9999
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endif
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call x%zero()
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ictxt,err_act)
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return
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end subroutine psb_zalloc_vect
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subroutine psb_zalloc_vect_r2(x, desc_a,info,n,lb)
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use psb_base_mod, psb_protect_name => psb_zalloc_vect_r2
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use psi_mod
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implicit none
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!....parameters...
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type(psb_z_vect_type), allocatable, intent(out) :: x(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_),intent(out) :: info
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integer(psb_ipk_), optional, intent(in) :: n,lb
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!locals
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integer(psb_ipk_) :: np,me,nr,i,err_act, n_, lb_
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integer(psb_ipk_) :: ictxt, exch(1)
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integer(psb_ipk_) :: debug_level, debug_unit
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character(len=20) :: name
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info=psb_success_
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if (psb_errstatus_fatal()) return
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name='psb_geall'
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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! ....verify blacs grid correctness..
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if (np == -1) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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!... check m and n parameters....
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if (.not.desc_a%is_ok()) then
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info = psb_err_invalid_cd_state_
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call psb_errpush(info,name)
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goto 9999
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end if
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if (present(n)) then
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n_ = n
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else
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n_ = 1
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endif
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if (present(lb)) then
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lb_ = lb
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else
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lb_ = 1
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endif
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!global check on n parameters
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if (me == psb_root_) then
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exch(1)=n_
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call psb_bcast(ictxt,exch(1),root=psb_root_)
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else
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call psb_bcast(ictxt,exch(1),root=psb_root_)
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if (exch(1) /= n_) then
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info=psb_err_parm_differs_among_procs_
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call psb_errpush(info,name,i_err=(/ione/))
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goto 9999
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endif
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endif
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! As this is a rank-1 array, optional parameter N is actually ignored.
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!....allocate x .....
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if (desc_a%is_asb().or.desc_a%is_upd()) then
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nr = max(1,desc_a%get_local_cols())
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else if (desc_a%is_bld()) then
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nr = max(1,desc_a%get_local_rows())
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else
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='Invalid desc_a')
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goto 9999
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endif
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allocate(x(lb_:lb_+n_-1), stat=info)
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if (info == 0) then
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do i=lb_, lb_+n_-1
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allocate(psb_z_base_vect_type :: x(i)%v, stat=info)
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if (info == 0) call x(i)%all(nr,info)
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if (info == 0) call x(i)%zero()
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if (info /= 0) exit
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end do
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end if
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if (psb_errstatus_fatal()) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/nr/),a_err='real(psb_spk_)')
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goto 9999
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endif
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ictxt,err_act)
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return
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end subroutine psb_zalloc_vect_r2
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subroutine psb_zalloc_multivect(x, desc_a,info,n)
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use psb_base_mod, psb_protect_name => psb_zalloc_multivect
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use psi_mod
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implicit none
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!....parameters...
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type(psb_z_multivect_type), intent(out) :: x
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_),intent(out) :: info
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integer(psb_ipk_), optional, intent(in) :: n
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!locals
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integer(psb_ipk_) :: np,me,nr,i,err_act, n_, lb_
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integer(psb_ipk_) :: ictxt, exch(1)
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integer(psb_ipk_) :: debug_level, debug_unit
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character(len=20) :: name
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info=psb_success_
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if (psb_errstatus_fatal()) return
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name='psb_geall'
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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! ....verify blacs grid correctness..
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if (np == -1) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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!... check m and n parameters....
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if (.not.desc_a%is_ok()) then
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info = psb_err_invalid_cd_state_
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call psb_errpush(info,name)
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goto 9999
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end if
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if (present(n)) then
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n_ = n
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else
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n_ = 1
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endif
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!global check on n parameters
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if (me == psb_root_) then
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exch(1)=n_
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call psb_bcast(ictxt,exch(1),root=psb_root_)
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else
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call psb_bcast(ictxt,exch(1),root=psb_root_)
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if (exch(1) /= n_) then
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info=psb_err_parm_differs_among_procs_
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call psb_errpush(info,name,i_err=(/ione/))
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goto 9999
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endif
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endif
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! As this is a rank-1 array, optional parameter N is actually ignored.
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!....allocate x .....
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if (desc_a%is_asb().or.desc_a%is_upd()) then
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nr = max(1,desc_a%get_local_cols())
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else if (desc_a%is_bld()) then
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nr = max(1,desc_a%get_local_rows())
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else
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='Invalid desc_a')
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goto 9999
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endif
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allocate(psb_z_base_multivect_type :: x%v, stat=info)
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if (info == 0) call x%all(nr,n_,info)
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if (info == 0) call x%zero()
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if (psb_errstatus_fatal()) then
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info=psb_err_alloc_request_
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call psb_errpush(info,name,i_err=(/nr/),a_err='real(psb_spk_)')
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goto 9999
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endif
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ictxt,err_act)
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return
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end subroutine psb_zalloc_multivect
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