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89 lines
3.2 KiB
Fortran
89 lines
3.2 KiB
Fortran
1 year ago
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! Parallel Sparse BLAS GPU plugin
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! (C) Copyright 2013
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!
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! Salvatore Filippone
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! Alessandro Fanfarillo
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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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subroutine psb_d_dia_allocate_mnnz(m,n,a,nz)
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use psb_base_mod
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use psb_d_dia_mat_mod, psb_protect_name => psb_d_dia_allocate_mnnz
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implicit none
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integer(psb_ipk_), intent(in) :: m,n
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class(psb_d_dia_sparse_mat), intent(inout) :: a
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integer(psb_ipk_), intent(in), optional :: nz
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Integer(Psb_ipk_) :: err_act, info, nz_
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character(len=20) :: name='allocate_mnz'
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logical, parameter :: debug=.false.
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call psb_erractionsave(err_act)
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info = psb_success_
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if (m < 0) then
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info = psb_err_iarg_neg_
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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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if (n < 0) then
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info = psb_err_iarg_neg_
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call psb_errpush(info,name,i_err=(/2*ione/))
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goto 9999
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endif
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if (present(nz)) then
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nz_ = (max(nz,ione) + m -ione )/m
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else
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nz_ = ((max(7*m,7*n,ione)+m-ione)/m)
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end if
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if (nz_ < 0) then
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info = psb_err_iarg_neg_
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call psb_errpush(info,name,i_err=(/3*ione/))
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goto 9999
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endif
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if (info == psb_success_) call psb_realloc(m,nz_,a%data,info)
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if (info == psb_success_) call psb_realloc(m+n,a%offset,info)
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if (info == psb_success_) then
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a%data = 0
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a%offset = 0
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call a%set_nrows(m)
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call a%set_ncols(n)
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call a%set_bld()
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call a%set_triangle(.false.)
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call a%set_unit(.false.)
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call a%set_dupl(psb_dupl_def_)
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end if
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if (info /= psb_success_) goto 9999
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine psb_d_dia_allocate_mnnz
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