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psblas3/base/tools/psb_zallc_a.f90

249 lines
8.0 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_zallc.f90
!
! Function: psb_zalloc
! Allocates dense matrix for PSBLAS routines.
! The descriptor may be in either the build or assembled state.
!
! Arguments:
! x - the matrix to be allocated.
! desc_a - the communication descriptor.
! info - Return code
! n - optional number of columns.
! lb - optional lower bound on column indices
subroutine psb_zalloc(x, desc_a, info, n, lb)
use psb_base_mod, psb_protect_name => psb_zalloc
use psi_mod
implicit none
!....parameters...
complex(psb_dpk_), allocatable, intent(out) :: x(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_),intent(out) :: info
integer(psb_ipk_), optional, intent(in) :: n, lb
!locals
integer(psb_ipk_) :: err,nr,i,j,n_,err_act
type(psb_ctxt_type) :: ictxt
integer(psb_ipk_) :: np,me
integer(psb_ipk_) :: exch(3)
character(len=20) :: name
name='psb_geall'
info = psb_success_
err = 0
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ictxt=desc_a%get_context()
call psb_info(ictxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
!... check m and n parameters....
if (.not.psb_is_ok_desc(desc_a)) then
info = psb_err_input_matrix_unassembled_
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=psb_err_parm_differs_among_procs_
call psb_errpush(info,name,i_err=(/ione/))
goto 9999
endif
endif
!....allocate x .....
if (psb_is_asb_desc(desc_a).or.psb_is_upd_desc(desc_a)) then
nr = max(1,desc_a%get_local_cols())
else if (psb_is_bld_desc(desc_a)) then
nr = max(1,desc_a%get_local_rows())
else
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Invalid desc_a')
goto 9999
endif
call psb_realloc(nr,n_,x,info,lb2=lb)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/nr*n_/),a_err='complex(psb_dpk_)')
goto 9999
endif
x(:,:) = zzero
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end subroutine psb_zalloc
!!$
!!$ Parallel Sparse BLAS version 3.5
!!$ (C) Copyright 2006-2018
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ 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.
!!$
!!$
!
! Function: psb_zallocv
! Allocates dense matrix for PSBLAS routines
! The descriptor may be in either the build or assembled state.
!
! Arguments:
! x(:) - the matrix to be allocated.
! desc_a - the communication descriptor.
! info - return code
subroutine psb_zallocv(x, desc_a,info,n)
use psb_base_mod, psb_protect_name => psb_zallocv
use psi_mod
implicit none
!....parameters...
complex(psb_dpk_), allocatable, intent(out) :: x(:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_),intent(out) :: info
integer(psb_ipk_), optional, intent(in) :: n
!locals
integer(psb_ipk_) :: nr,i,err_act
type(psb_ctxt_type) :: ictxt
integer(psb_ipk_) :: np,me
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name
info=psb_success_
name='psb_geall'
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt=desc_a%get_context()
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
!... check m and n parameters....
if (.not.psb_is_ok_desc(desc_a)) then
info = psb_err_input_matrix_unassembled_
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
nr = max(1,desc_a%get_local_cols())
else if (psb_is_bld_desc(desc_a)) then
nr = max(1,desc_a%get_local_rows())
else
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='Invalid desc_a')
goto 9999
endif
call psb_realloc(nr,x,info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/nr/),a_err='complex(psb_dpk_)')
goto 9999
endif
x(:) = zzero
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end subroutine psb_zallocv