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psblas3/base/tools/psb_dasb.f90

253 lines
8.3 KiB
Fortran

!!$
!!$ 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_dasb.f90
!
! Subroutine: psb_dasb
! Assembles a dense matrix 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.
!
! Parameters:
! x(:,:) - real,allocatable The matrix to be assembled.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. return code
subroutine psb_dasb(x, desc_a, info)
!....assembly dense matrix x .....
use psb_descriptor_type
use psb_const_mod
use psb_comm_mod
use psb_error_mod
use psb_realloc_mod
use psb_penv_mod
implicit none
type(psb_desc_type), intent(in) :: desc_a
real(kind(1.d0)), allocatable, intent(inout) :: x(:,:)
integer, intent(out) :: info
! local variables
integer :: ictxt,np,me,nrow,ncol, err_act
integer :: int_err(5), i1sz, i2sz
real(kind(1.d0)),parameter :: one=1
logical, parameter :: debug=.false.
character(len=20) :: name, ch_err
if(psb_get_errstatus() /= 0) return
info=0
name='psb_dasb'
call psb_erractionsave(err_act)
if ((.not.allocated(desc_a%matrix_data))) then
info=3110
call psb_errpush(info,name)
goto 9999
endif
ictxt = psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
if (debug) write(*,*) 'asb start: ',np,me,&
& psb_cd_get_dectype(desc_a)
! ....verify blacs grid correctness..
if (np == -1) then
info = 2010
call psb_errpush(info,name)
goto 9999
else if (.not.psb_is_asb_desc(desc_a)) then
if (debug) write(*,*) 'asb error ',&
& psb_cd_get_dectype(desc_a)
info = 3110
call psb_errpush(info,name)
goto 9999
endif
! check size
ictxt = psb_cd_get_context(desc_a)
nrow = psb_cd_get_local_rows(desc_a)
ncol = psb_cd_get_local_cols(desc_a)
i1sz = size(x,dim=1)
i2sz = size(x,dim=2)
if (debug) write(*,*) 'asb: ',i1sz,i2sz,nrow,ncol
if (i1sz < ncol) then
call psb_realloc(ncol,i2sz,x,info)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_realloc')
goto 9999
endif
endif
! ..update halo elements..
call psb_halo(x,desc_a,info)
if(info /= 0) then
info=4010
ch_err='psb_halo'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
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_dasb
!!$
!!$ 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.
!!$
!!$
! Subroutine: psb_dasb
! Assembles a dense matrix 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.
!
! Parameters:
! x(:) - real,allocatable The matrix to be assembled.
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Return code
subroutine psb_dasbv(x, desc_a, info)
!....assembly dense matrix x .....
use psb_descriptor_type
use psb_const_mod
use psb_comm_mod
use psb_error_mod
use psb_realloc_mod
use psb_penv_mod
implicit none
type(psb_desc_type), intent(in) :: desc_a
real(kind(1.d0)), allocatable, intent(inout) :: x(:)
integer, intent(out) :: info
! local variables
integer :: ictxt,np,me
integer :: int_err(5), i1sz,nrow,ncol, err_act
real(kind(1.d0)),parameter :: one=1
logical, parameter :: debug=.false.
character(len=20) :: name,ch_err
info = 0
int_err(1) = 0
name = 'psb_dasbv'
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
else if (.not.psb_is_asb_desc(desc_a)) then
info = 3110
call psb_errpush(info,name)
goto 9999
endif
nrow = psb_cd_get_local_rows(desc_a)
ncol = psb_cd_get_local_cols(desc_a)
if (debug) write(*,*) name,' sizes: ',nrow,ncol
i1sz = size(x)
if (debug) write(*,*) 'dasb: sizes ',i1sz,ncol
if (i1sz < ncol) then
call psb_realloc(ncol,x,info)
if (info /= 0) then
info=4010
call psb_errpush(info,name,a_err='psb_realloc')
goto 9999
endif
endif
! ..update halo elements..
call psb_halo(x,desc_a,info)
if(info /= 0) then
info=4010
ch_err='f90_pshalo'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
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_dasbv