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515 lines
17 KiB
Fortran
515 lines
17 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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module psi_mod
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interface
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subroutine psi_compute_size(desc_data,&
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& index_in, dl_lda, info)
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integer :: info, dl_lda
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integer :: desc_data(:), index_in(:)
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end subroutine psi_compute_size
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end interface
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interface
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subroutine psi_crea_bnd_elem(bndel,desc_a,info)
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use psb_descriptor_type
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integer, allocatable :: bndel(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info
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end subroutine psi_crea_bnd_elem
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end interface
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interface
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subroutine psi_crea_index(desc_a,index_in,index_out,glob_idx,nxch,nsnd,nrcv,info)
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use psb_descriptor_type
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info,nxch,nsnd,nrcv
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integer, intent(in) :: index_in(:)
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integer, allocatable, intent(inout) :: index_out(:)
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logical :: glob_idx
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end subroutine psi_crea_index
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end interface
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interface
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subroutine psi_crea_ovr_elem(desc_overlap,ovr_elem,info)
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integer :: desc_overlap(:)
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integer, allocatable, intent(inout) :: ovr_elem(:)
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integer, intent(out) :: info
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end subroutine psi_crea_ovr_elem
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end interface
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interface
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subroutine psi_desc_index(desc,index_in,dep_list,&
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& length_dl,nsnd,nrcv,desc_index,isglob_in,info)
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use psb_descriptor_type
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type(psb_desc_type) :: desc
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integer :: index_in(:),dep_list(:)
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integer,allocatable, intent(inout) :: desc_index(:)
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integer :: length_dl,nsnd,nrcv,info
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logical :: isglob_in
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end subroutine psi_desc_index
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end interface
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interface
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subroutine psi_dl_check(dep_list,dl_lda,np,length_dl)
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integer :: np,dl_lda,length_dl(0:np)
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integer :: dep_list(dl_lda,0:np)
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end subroutine psi_dl_check
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end interface
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interface
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subroutine psi_sort_dl(dep_list,l_dep_list,np,info)
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integer :: np,dep_list(:,:), l_dep_list(:), info
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end subroutine psi_sort_dl
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end interface
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interface psi_swapdata
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subroutine psi_dswapdatam(flag,n,beta,y,desc_a,work,info,data)
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use psb_descriptor_type
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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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real(kind(1.d0)) :: y(:,:), beta
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real(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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integer, optional :: data
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end subroutine psi_dswapdatam
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subroutine psi_dswapdatav(flag,beta,y,desc_a,work,info,data)
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use psb_descriptor_type
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integer, intent(in) :: flag
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integer, intent(out) :: info
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real(kind(1.d0)) :: y(:), beta
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real(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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integer, optional :: data
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end subroutine psi_dswapdatav
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subroutine psi_iswapdatam(flag,n,beta,y,desc_a,work,info,data)
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use psb_descriptor_type
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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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integer :: y(:,:), beta
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integer, target :: work(:)
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type(psb_desc_type), target :: desc_a
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integer, optional :: data
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end subroutine psi_iswapdatam
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subroutine psi_iswapdatav(flag,beta,y,desc_a,work,info,data)
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use psb_descriptor_type
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integer, intent(in) :: flag
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integer, intent(out) :: info
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integer :: y(:), beta
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integer, target :: work(:)
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type(psb_desc_type), target :: desc_a
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integer, optional :: data
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end subroutine psi_iswapdatav
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subroutine psi_zswapdatam(flag,n,beta,y,desc_a,work,info,data)
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use psb_descriptor_type
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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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complex(kind(1.d0)) :: y(:,:), beta
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complex(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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integer, optional :: data
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end subroutine psi_zswapdatam
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subroutine psi_zswapdatav(flag,beta,y,desc_a,work,info,data)
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use psb_descriptor_type
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integer, intent(in) :: flag
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integer, intent(out) :: info
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complex(kind(1.d0)) :: y(:), beta
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complex(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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integer, optional :: data
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end subroutine psi_zswapdatav
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end interface
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interface psi_swaptran
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subroutine psi_dswaptranm(flag,n,beta,y,desc_a,work,info)
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use psb_descriptor_type
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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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real(kind(1.d0)) :: y(:,:), beta
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real(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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end subroutine psi_dswaptranm
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subroutine psi_dswaptranv(flag,beta,y,desc_a,work,info)
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use psb_descriptor_type
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integer, intent(in) :: flag
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integer, intent(out) :: info
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real(kind(1.d0)) :: y(:), beta
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real(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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end subroutine psi_dswaptranv
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subroutine psi_iswaptranm(flag,n,beta,y,desc_a,work,info)
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use psb_descriptor_type
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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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integer :: y(:,:), beta
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integer,target :: work(:)
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type(psb_desc_type), target :: desc_a
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end subroutine psi_iswaptranm
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subroutine psi_iswaptranv(flag,beta,y,desc_a,work,info)
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use psb_descriptor_type
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integer, intent(in) :: flag
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integer, intent(out) :: info
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integer :: y(:), beta
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integer,target :: work(:)
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type(psb_desc_type), target :: desc_a
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end subroutine psi_iswaptranv
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subroutine psi_zswaptranm(flag,n,beta,y,desc_a,work,info)
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use psb_descriptor_type
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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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complex(kind(1.d0)) :: y(:,:), beta
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complex(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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end subroutine psi_zswaptranm
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subroutine psi_zswaptranv(flag,beta,y,desc_a,work,info)
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use psb_descriptor_type
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integer, intent(in) :: flag
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integer, intent(out) :: info
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complex(kind(1.d0)) :: y(:), beta
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complex(kind(1.d0)),target :: work(:)
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type(psb_desc_type), target :: desc_a
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end subroutine psi_zswaptranv
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end interface
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interface psi_cnv_dsc
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module procedure psi_cnv_dsc
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end interface
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interface psi_inner_cnv
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module procedure psi_inner_cnv1, psi_inner_cnv2
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end interface
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interface
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subroutine psi_extract_dep_list(desc_data,desc_str,dep_list,&
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& length_dl,np,dl_lda,mode,info)
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integer :: np,dl_lda,mode, info
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integer :: desc_str(*),desc_data(*),dep_list(dl_lda,0:np),length_dl(0:np)
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end subroutine psi_extract_dep_list
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end interface
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interface psi_fnd_owner
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subroutine psi_fnd_owner(nv,idx,iprc,desc,info)
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use psb_descriptor_type
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integer, intent(in) :: nv
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integer, intent(in) :: idx(:)
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integer, allocatable, intent(out) :: iprc(:)
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type(psb_desc_type), intent(in) :: desc
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integer, intent(out) :: info
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end subroutine psi_fnd_owner
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end interface
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interface psi_ldsc_pre_halo
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subroutine psi_ldsc_pre_halo(desc,ext_hv,info)
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use psb_descriptor_type
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type(psb_desc_type), intent(inout) :: desc
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logical, intent(in) :: ext_hv
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integer, intent(out) :: info
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end subroutine psi_ldsc_pre_halo
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end interface
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interface psi_idx_cnv
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subroutine psi_idx_cnv1(nv,idxin,desc,info,mask,owned)
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use psb_descriptor_type
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integer, intent(in) :: nv
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integer, intent(inout) :: idxin(:)
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type(psb_desc_type), intent(in) :: desc
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integer, intent(out) :: info
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logical, intent(in), optional, target :: mask(:)
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logical, intent(in), optional :: owned
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end subroutine psi_idx_cnv1
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subroutine psi_idx_cnv2(nv,idxin,idxout,desc,info,mask,owned)
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use psb_descriptor_type
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integer, intent(in) :: nv, idxin(:)
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integer, intent(out) :: idxout(:)
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type(psb_desc_type), intent(in) :: desc
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integer, intent(out) :: info
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logical, intent(in), optional, target :: mask(:)
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logical, intent(in), optional :: owned
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end subroutine psi_idx_cnv2
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subroutine psi_idx_cnvs(idxin,idxout,desc,info,mask,owned)
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use psb_descriptor_type
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integer, intent(in) :: idxin
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integer, intent(out) :: idxout
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type(psb_desc_type), intent(in) :: desc
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integer, intent(out) :: info
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logical, intent(in), optional, target :: mask
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logical, intent(in), optional :: owned
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end subroutine psi_idx_cnvs
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end interface
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interface psi_idx_ins_cnv
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subroutine psi_idx_ins_cnv1(nv,idxin,desc,info,mask)
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use psb_descriptor_type
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integer, intent(in) :: nv
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integer, intent(inout) :: idxin(:)
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type(psb_desc_type), intent(inout) :: desc
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integer, intent(out) :: info
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logical, intent(in), optional, target :: mask(:)
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end subroutine psi_idx_ins_cnv1
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subroutine psi_idx_ins_cnv2(nv,idxin,idxout,desc,info,mask)
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use psb_descriptor_type
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integer, intent(in) :: nv, idxin(:)
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integer, intent(out) :: idxout(:)
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type(psb_desc_type), intent(inout) :: desc
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integer, intent(out) :: info
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logical, intent(in), optional, target :: mask(:)
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end subroutine psi_idx_ins_cnv2
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subroutine psi_idx_ins_cnvs(idxin,idxout,desc,info,mask)
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use psb_descriptor_type
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integer, intent(in) :: idxin
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integer, intent(out) :: idxout
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type(psb_desc_type), intent(inout) :: desc
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integer, intent(out) :: info
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logical, intent(in), optional, target :: mask
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end subroutine psi_idx_ins_cnvs
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end interface
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contains
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subroutine psi_cnv_dsc(halo_in,ovrlap_in,ext_in,cdesc, info)
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use psb_const_mod
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use psb_error_mod
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use psb_penv_mod
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use psb_descriptor_type
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use psb_realloc_mod
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implicit none
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! ....scalars parameters....
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integer, intent(in) :: halo_in(:), ovrlap_in(:),ext_in(:)
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type(psb_desc_type), intent(inout) :: cdesc
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integer, intent(out) :: info
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! ....local scalars....
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integer :: i,np,me,proc, max_index
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integer :: ictxt, err_act,nxch,nsnd,nrcv
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! ...local array...
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integer :: int_err(5)
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integer, allocatable :: idx_out(:)
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! ...parameters
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logical, parameter :: debug=.false.
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character(len=20) :: name
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name='psi_bld_cdesc'
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call psb_get_erraction(err_act)
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info = 0
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ictxt = cdesc%matrix_data(psb_ctxt_)
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call psb_info(ictxt,me,np)
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if (np == -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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endif
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! first the halo index
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if (debug) write(0,*) me,'Calling crea_index on halo'
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call psi_crea_index(cdesc,halo_in, idx_out,.false.,nxch,nsnd,nrcv,info)
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psi_crea_index')
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goto 9999
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end if
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call psb_transfer(idx_out,cdesc%halo_index,info)
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cdesc%matrix_data(psb_thal_xch_) = nxch
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cdesc%matrix_data(psb_thal_snd_) = nsnd
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cdesc%matrix_data(psb_thal_rcv_) = nrcv
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if (debug) write(0,*) me,'Done crea_index on halo'
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if (debug) write(0,*) me,'Calling crea_index on ext'
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! then ext index
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if (debug) write(0,*) me,'Calling crea_index on ext'
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call psi_crea_index(cdesc,ext_in, idx_out,.false.,nxch,nsnd,nrcv,info)
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psi_crea_index')
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goto 9999
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end if
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call psb_transfer(idx_out,cdesc%ext_index,info)
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cdesc%matrix_data(psb_text_xch_) = nxch
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cdesc%matrix_data(psb_text_snd_) = nsnd
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cdesc%matrix_data(psb_text_rcv_) = nrcv
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if (debug) write(0,*) me,'Done crea_index on ext'
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if (debug) write(0,*) me,'Calling crea_index on ovrlap'
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! then the overlap index
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call psi_crea_index(cdesc,ovrlap_in, idx_out,.true.,nxch,nsnd,nrcv,info)
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psi_crea_index')
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goto 9999
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end if
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call psb_transfer(idx_out,cdesc%ovrlap_index,info)
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psb_transfer')
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goto 9999
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end if
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cdesc%matrix_data(psb_tovr_xch_) = nxch
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cdesc%matrix_data(psb_tovr_snd_) = nsnd
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cdesc%matrix_data(psb_tovr_rcv_) = nrcv
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if (debug) write(0,*) me,'Calling crea_ovr_elem'
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! next ovrlap_elem
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call psi_crea_ovr_elem(cdesc%ovrlap_index,cdesc%ovrlap_elem,info)
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if (debug) write(0,*) me,'Done crea_ovr_elem'
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psi_crea_ovr_elem')
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goto 9999
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end if
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! finally bnd_elem
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call psi_crea_bnd_elem(idx_out,cdesc,info)
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if (info == 0) call psb_transfer(idx_out,cdesc%bnd_elem,info)
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psi_crea_bnd_elem')
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goto 9999
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end if
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if (debug) write(0,*) me,'Done crea_bnd_elem'
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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 == psb_act_abort_) then
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call psb_error(ictxt)
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return
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end if
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return
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end subroutine psi_cnv_dsc
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subroutine psi_inner_cnv1(n,x,hashsize,hashmask,hashv,glb_lc)
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integer, intent(in) :: n, hashsize,hashmask,hashv(0:),glb_lc(:,:)
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integer, intent(inout) :: x(:)
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integer :: i, ih, key, idx,nh,tmp,lb,ub,lm
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!
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! When a large descriptor is assembled the indices
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! are kept in a (hashed) list of ordered lists.
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! Thus we first hash the index, then we do a binary search on the
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! ordered sublist. The hashing is based on the low-order bits
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! for a width of psb_hash_bits
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!
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do i=1, n
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key = x(i)
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ih = iand(key,hashmask)
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idx = hashv(ih)
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nh = hashv(ih+1) - hashv(ih)
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if (nh > 0) then
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tmp = -1
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lb = idx
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ub = idx+nh-1
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do
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if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
|
if (key==glb_lc(lm,1)) then
|
|
tmp = lm
|
|
exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
x(i) = glb_lc(tmp,2)
|
|
else
|
|
x(i) = tmp
|
|
end if
|
|
end do
|
|
end subroutine psi_inner_cnv1
|
|
|
|
|
|
subroutine psi_inner_cnv2(n,x,y,hashsize,hashmask,hashv,glb_lc)
|
|
integer, intent(in) :: n, hashsize,hashmask,hashv(0:),glb_lc(:,:)
|
|
integer, intent(in) :: x(:)
|
|
integer, intent(out) :: y(:)
|
|
|
|
integer :: i, ih, key, idx,nh,tmp,lb,ub,lm
|
|
!
|
|
! When a large descriptor is assembled the indices
|
|
! are kept in a (hashed) list of ordered lists.
|
|
! Thus we first hash the index, then we do a binary search on the
|
|
! ordered sublist. The hashing is based on the low-order bits
|
|
! for a width of psb_hash_bits
|
|
!
|
|
|
|
do i=1, n
|
|
key = x(i)
|
|
ih = iand(key,hashmask)
|
|
if (ih > ubound(hashv,1) ) then
|
|
write(0,*) ' In inner cnv: ',ih,ubound(hashv)
|
|
end if
|
|
idx = hashv(ih)
|
|
nh = hashv(ih+1) - hashv(ih)
|
|
if (nh > 0) then
|
|
tmp = -1
|
|
lb = idx
|
|
ub = idx+nh-1
|
|
do
|
|
if (lb>ub) exit
|
|
lm = (lb+ub)/2
|
|
if (key==glb_lc(lm,1)) then
|
|
tmp = lm
|
|
exit
|
|
else if (key<glb_lc(lm,1)) then
|
|
ub = lm - 1
|
|
else
|
|
lb = lm + 1
|
|
end if
|
|
end do
|
|
else
|
|
tmp = -1
|
|
end if
|
|
if (tmp > 0) then
|
|
y(i) = glb_lc(tmp,2)
|
|
else
|
|
y(i) = tmp
|
|
end if
|
|
end do
|
|
end subroutine psi_inner_cnv2
|
|
|
|
end module psi_mod
|