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323 lines
10 KiB
Fortran
323 lines
10 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 2.2
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!!$ (C) Copyright 2006/2007/2008
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!!$ 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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!
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! READ_MAT subroutine reads a matrix and its right hand sides,
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! all stored in Matrix Market format file. The B field is optional,.
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!
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! Character :: filename*20
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! On Entry: name of file to be processed.
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! On Exit : unchanged.
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!
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! Type(D_SPMAT) :: A
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! On Entry: fresh variable.
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! On Exit : will contain the global sparse matrix as follows:
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! A%AS for coefficient values
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! A%IA1 for column indices
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! A%IA2 for row pointers
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! A%M for number of global matrix rows
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! A%K for number of global matrix columns
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!
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! Integer :: ICTXT
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! On Entry: BLACS context.
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! On Exit : unchanged.
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!
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! Real(psb_dpk_), Pointer, Optional :: B(:,:)
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! On Entry: fresh variable.
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! On Exit: will contain right hand side(s).
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!
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! Integer, Optional :: inroot
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! On Entry: Index of root processor (default: 0)
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! On Exit : unchanged.
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!
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module psb_read_mat_mod
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interface read_mat
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module procedure sreadmat, dreadmat, creadmat, zreadmat
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end interface
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interface read_rhs
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module procedure sread_rhs, cread_rhs, dread_rhs, zread_rhs
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end interface
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contains
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subroutine sreadmat (filename, a, ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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type(psb_sspmat_type) :: a
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character(len=*) :: filename
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: info, root, np, me
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading matrix...")') ! open input file
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call mm_mat_read(a,info,infile,filename)
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if (info /= 0) then
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write(0,*) 'Error return from MM_MAT_READ ',info
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call psb_abort(ictxt) ! Unexpected End of File
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endif
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end if
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return
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end subroutine sreadmat
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subroutine sread_rhs (filename, b, info,ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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character :: filename*(*)
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real(psb_spk_), allocatable, intent(out) :: b(:,:)
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integer, intent(out) :: info
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: nrow, ncol, i,root, np, me, ircode, j
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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info = 0
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading rhs...")') ! open input file
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call mm_vet_read(filename,b,info)
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if (info /= 0) then
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write(0,*) 'read_rhs: something went wrong.'
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return
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end if ! read right hand sides
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write(*,*) 'end read_rhs'
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end if
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return
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end subroutine sread_rhs
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subroutine dreadmat (filename, a, ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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type(psb_dspmat_type) :: a
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character(len=*) :: filename
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: info, root, np, me
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading matrix...")') ! open input file
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call mm_mat_read(a,info,infile,filename)
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if (info /= 0) then
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write(0,*) 'Error return from MM_MAT_READ ',info
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call psb_abort(ictxt) ! Unexpected End of File
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endif
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end if
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return
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end subroutine dreadmat
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subroutine dread_rhs (filename, b, info,ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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character :: filename*(*)
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real(psb_dpk_), allocatable, intent(out) :: b(:,:)
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integer, intent(out) :: info
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: nrow, ncol, i,root, np, me, ircode, j
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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info = 0
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading rhs...")') ! open input file
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call mm_vet_read(filename,b,info)
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if (info /= 0) then
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write(0,*) 'read_rhs: something went wrong.'
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return
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end if ! read right hand sides
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write(*,*) 'end read_rhs'
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end if
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return
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end subroutine dread_rhs
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subroutine creadmat (filename, a, ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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type(psb_cspmat_type) :: a
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character(len=*) :: filename
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: info, root, np, me
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading matrix...")') ! open input file
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call mm_mat_read(a,info,infile,filename)
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if (info /= 0) then
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write(0,*) 'Error return from MM_MAT_READ ',info
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call psb_abort(ictxt) ! Unexpected End of File
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endif
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end if
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return
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end subroutine creadmat
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subroutine cread_rhs (filename, b, info,ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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character :: filename*(*)
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complex(psb_spk_), allocatable, intent(out) :: b(:,:)
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integer, intent(out) :: info
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: nrow, ncol, i,root, np, me, ircode, j
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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info = 0
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading rhs...")') ! open input file
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call mm_vet_read(filename,b,info)
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if (info /= 0) then
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write(0,*) 'read_rhs: something went wrong.'
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return
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end if ! read right hand sides
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write(*,*) 'end read_rhs'
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end if
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return
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end subroutine cread_rhs
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subroutine zreadmat (filename, a, ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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type(psb_zspmat_type) :: a
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character(len=*) :: filename
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: info, root, np, me
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading matrix...")') ! open input file
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call mm_mat_read(a,info,infile,filename)
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if (info /= 0) then
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write(0,*) 'Error return from MM_MAT_READ ',info
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call psb_abort(ictxt) ! Unexpected End of File
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endif
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end if
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return
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end subroutine zreadmat
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subroutine zread_rhs (filename, b, info,ictxt, inroot)
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use psb_base_mod
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use psb_mmio_mod
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implicit none
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integer :: ictxt
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character :: filename*(*)
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complex(psb_dpk_), allocatable, intent(out) :: b(:,:)
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integer, intent(out) :: info
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integer, optional :: inroot
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integer, parameter :: infile = 2
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integer :: nrow, ncol, i,root, np, me, ircode, j
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if (present(inroot)) then
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root = inroot
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else
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root = psb_root_
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end if
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info = 0
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call psb_info(ictxt, me, np)
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if (me == root) then
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write(*, '("Reading rhs...")') ! open input file
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call mm_vet_read(filename,b,info)
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if (info /= 0) then
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write(0,*) 'read_rhs: something went wrong.'
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return
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end if ! read right hand sides
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write(*,*) 'end read_rhs'
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end if
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return
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end subroutine zread_rhs
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end module psb_read_mat_mod
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