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291 lines
9.0 KiB
Fortran
291 lines
9.0 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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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_dallc.f90
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!
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! Function: psb_dalloc
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! Allocates dense matrix for PSBLAS routines
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!
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! Parameters:
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! x - the matrix to be allocated.
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! desc_a - the communication descriptor.
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! info - possibly returns an error code
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! n - optional number of columns.
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subroutine psb_dalloc(x, desc_a, info, n)
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!....allocate dense matrix for psblas routines.....
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use psb_descriptor_type
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use psb_const_mod
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use psb_error_mod
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implicit none
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!....parameters...
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real(kind(1.d0)), pointer :: x(:,:)
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type(psb_desc_type), intent(in) :: desc_a
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integer :: info
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integer, optional, intent(in) :: n
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!locals
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integer :: nprow,npcol,myrow,mycol,err,n_col,n_row,i,j,jj,err_act
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integer :: icontxt,dectype,n_
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integer :: int_err(5),temp(1),exch(3)
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real(kind(1.d0)) :: real_err(5)
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character(len=20) :: name, ch_err
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name='psb_dallc'
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if(psb_get_errstatus().ne.0) return
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info=0
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err=0
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int_err(1)=0
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call psb_erractionsave(err_act)
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icontxt=desc_a%matrix_data(psb_ctxt_)
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call blacs_gridinfo(icontxt, nprow, npcol, myrow, mycol)
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! ....verify blacs grid correctness..
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if (nprow.eq.-1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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else if (npcol.ne.1) then
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info = 2030
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int_err(1) = npcol
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call psb_errpush(info,name,int_err)
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goto 9999
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endif
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dectype=desc_a%matrix_data(psb_dec_type_)
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!... check m and n parameters....
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if (.not.psb_is_ok_dec(dectype)) then
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info = 3110
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call psb_errpush(info,name)
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goto 9999
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endif
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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 (myrow.eq.psb_root_) then
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exch(1)=n_
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call igebs2d(icontxt,psb_all_,psb_topdef_, ione,ione, exch, ione)
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else
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call igebr2d(icontxt,psb_all_,psb_topdef_, ione,ione, exch, ione, psb_root_, 0)
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if (exch(1).ne.n_) then
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info=550
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int_err(1)=1
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call psb_errpush(info,name,int_err)
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goto 9999
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endif
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endif
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!....allocate x .....
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if (psb_is_asb_dec(dectype).or.psb_is_upd_dec(dectype)) then
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n_col = max(1,desc_a%matrix_data(psb_n_col_))
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allocate(x(n_col,n_),stat=info)
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if (info.ne.0) then
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info=4010
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ch_err='allocate'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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endif
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do j=1,n_
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do i=1,n_col
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x(i,j) = 0.0d0
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end do
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end do
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else if (psb_is_bld_dec(dectype)) then
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n_row = max(1,desc_a%matrix_data(psb_n_row_))
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allocate(x(n_row,n_),stat=info)
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if (info.ne.0) then
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info=4010
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ch_err='allocate'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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endif
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do j = 1, n_
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do i=1,n_row
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x(i,j) = 0.0d0
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end do
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end do
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endif
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act.eq.act_abort) then
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call psb_error(icontxt)
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return
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end if
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return
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end subroutine psb_dalloc
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!!$
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!!$ Parallel Sparse BLAS v2.0
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|
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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
|
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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!
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! Function: psb_dallocv
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! Allocates dense matrix for PSBLAS routines
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!
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! Parameters:
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! x - the matrix to be allocated.
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! desc_a - the communication descriptor.
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! info - possibly returns an error code
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subroutine psb_dallocv(x, desc_a,info,n)
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!....allocate sparse matrix structure for psblas routines.....
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use psb_descriptor_type
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use psb_const_mod
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use psb_realloc_mod
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use psb_error_mod
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implicit none
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!....parameters...
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real(kind(1.d0)), pointer :: x(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer :: info
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integer, optional, intent(in) :: n
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!locals
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integer :: nprow,npcol,myrow,mycol,err,n_col,n_row,dectype,i,err_act
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integer :: icontxt, n_
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integer :: int_err(5),temp(1),exch
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real(kind(1.d0)) :: real_err(5)
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logical, parameter :: debug=.false.
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character(len=20) :: name, ch_err
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if(psb_get_errstatus().ne.0) return
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info=0
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name='psb_dallcv'
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call psb_erractionsave(err_act)
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icontxt=desc_a%matrix_data(psb_ctxt_)
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call blacs_gridinfo(icontxt, nprow, npcol, myrow, mycol)
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! ....verify blacs grid correctness..
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if (nprow.eq.-1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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else if (npcol.ne.1) then
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info = 2030
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int_err(1) = npcol
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call psb_errpush(info,name,int_err)
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goto 9999
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endif
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dectype=desc_a%matrix_data(psb_dec_type_)
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if (debug) write(0,*) 'dall: dectype',dectype
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if (debug) write(0,*) 'dall: is_ok? dectype',psb_is_ok_dec(dectype)
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!... check m and n parameters....
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if (.not.psb_is_ok_dec(dectype)) then
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info = 3110
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call psb_errpush(info,name)
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goto 9999
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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 (psb_is_asb_dec(dectype).or.psb_is_upd_dec(dectype)) then
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n_col = max(1,desc_a%matrix_data(psb_n_col_))
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call psb_realloc(n_col,x,info)
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if (info.ne.0) then
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info=4010
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ch_err='psb_realloc'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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endif
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do i=1,n_col
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x(i) = 0.0d0
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end do
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else if (psb_is_bld_dec(dectype)) then
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n_row = max(1,desc_a%matrix_data(psb_n_row_))
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call psb_realloc(n_row,x,info)
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if (info.ne.0) then
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info=4010
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ch_err='psb_realloc'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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endif
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do i=1,n_row
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x(i) = 0.0d0
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end do
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endif
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act.eq.act_abort) then
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call psb_error(icontxt)
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return
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end if
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return
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end subroutine psb_dallocv
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