!!$
!!$ Parallel Sparse BLAS v2.0
!!$ (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
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
!
! File: psb_dallc.f90
!
! Function: psb_dalloc
! Allocates dense matrix for PSBLAS routines
!
! Parameters:
! x - the matrix to be allocated.
! desc_a - the communication descriptor.
! info - possibly returns an error code
! n - optional number of columns.
subroutine psb_dalloc(x, desc_a, info, n)
!....allocate dense matrix for psblas routines.....
use psb_descriptor_type
use psb_const_mod
use psb_error_mod
use psb_penv_mod
implicit none
!....parameters...
real(kind(1.d0)), allocatable, intent(out) :: x(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer,intent(out) :: info
integer, optional, intent(in) :: n
!locals
integer :: np,me,err,n_col,n_row,i,j,err_act
integer :: ictxt,n_
integer :: int_err(5), exch(3)
character(len=20) :: name, ch_err
name='psb_dallc'
if(psb_get_errstatus() /= 0) return
info=0
err=0
int_err(1)=0
call psb_erractionsave(err_act)
ictxt=psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
if (np == -1) then
info = 2010
call psb_errpush(info,name)
goto 9999
endif
!... check m and n parameters....
if (.not.psb_is_ok_desc(desc_a)) then
info = 3110
call psb_errpush(info,name)
goto 9999
endif
if (present(n)) then
n_ = n
else
n_ = 1
endif
!global check on n parameters
if (me == psb_root_) then
exch(1)=n_
call psb_bcast(ictxt,exch(1),root=psb_root_)
else
call psb_bcast(ictxt,exch(1),root=psb_root_)
if (exch(1) /= n_) then
info=550
int_err(1)=1
call psb_errpush(info,name,int_err)
goto 9999
endif
endif
!....allocate x .....
if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
n_col = max(1,psb_cd_get_local_cols(desc_a))
allocate(x(n_col,n_),stat=info)
if (info /= 0) then
info=4025
int_err(1)=n_col*n_
call psb_errpush(info,name,int_err,a_err='real(kind(1.d0))')
goto 9999
endif
do j=1,n_
do i=1,n_col
x(i,j) = 0.0d0
end do
end do
else if (psb_is_bld_desc(desc_a)) then
n_row = max(1,psb_cd_get_local_rows(desc_a))
allocate(x(n_row,n_),stat=info)
if (info /= 0) then
info=4025
int_err(1)=n_row*n_
call psb_errpush(info,name,int_err,a_err='real(kind(1.d0))')
goto 9999
endif
do j = 1, n_
do i=1,n_row
x(i,j) = 0.0d0
end do
end do
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psb_dalloc
!!$
!!$ Parallel Sparse BLAS v2.0
!!$ (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
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
!
! Function: psb_dallocv
! Allocates dense matrix for PSBLAS routines
!
! Parameters:
! x - the matrix to be allocated.
! desc_a - the communication descriptor.
! info - possibly returns an error code
subroutine psb_dallocv(x, desc_a,info,n)
!....allocate sparse matrix structure for psblas routines.....
use psb_descriptor_type
use psb_const_mod
use psb_realloc_mod
use psb_error_mod
use psb_penv_mod
implicit none
!....parameters...
real(kind(1.d0)), allocatable, intent(out) :: x(:)
type(psb_desc_type), intent(in) :: desc_a
integer,intent(out) :: info
integer, optional, intent(in) :: n
!locals
integer :: np,me,n_col,n_row,i,err_act
integer :: ictxt, n_, int_err(5)
logical, parameter :: debug=.false.
character(len=20) :: name, ch_err
if(psb_get_errstatus() /= 0) return
info=0
name='psb_dallcv'
call psb_erractionsave(err_act)
ictxt=psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
! ....verify blacs grid correctness..
if (np == -1) then
info = 2010
call psb_errpush(info,name)
goto 9999
endif
!... check m and n parameters....
if (.not.psb_is_ok_desc(desc_a)) then
info = 3110
call psb_errpush(info,name)
goto 9999
endif
! As this is a rank-1 array, optional parameter N is actually ignored.
!....allocate x .....
if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
n_col = max(1,psb_cd_get_local_cols(desc_a))
allocate(x(n_col),stat=info)
if (info.ne.0) then
info=4025
int_err(1)=n_col
call psb_errpush(info,name,int_err,a_err='real(kind(1.d0))')
goto 9999
endif
do i=1,n_col
x(i) = 0.0d0
end do
else if (psb_is_bld_desc(desc_a)) then
n_row = max(1,psb_cd_get_local_rows(desc_a))
allocate(x(n_row),stat=info)
if (info.ne.0) then
info=4025
int_err(1)=n_row
call psb_errpush(info,name,int_err,a_err='real(kind(1.d0))')
goto 9999
endif
do i=1,n_row
x(i) = 0.0d0
end do
else
write(0,*) 'Did not allocate anything because of dectype',psb_cd_get_dectype(desc_a)
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psb_dallocv