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382 lines
11 KiB
Fortran
382 lines
11 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 mmio
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use psb_sparse_mod
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public mm_mat_read, mm_mat_write
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interface mm_mat_read
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module procedure dmm_mat_read, zmm_mat_read
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end interface
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interface mm_mat_write
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module procedure dmm_mat_write,zmm_mat_write
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end interface
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contains
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subroutine dmm_mat_read(a, iret, iunit, filename)
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use psb_sparse_mod
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implicit none
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type(psb_dspmat_type), intent(out) :: a
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integer, intent(out) :: iret
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integer, optional, intent(in) :: iunit
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character(len=*), optional, intent(in) :: filename
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character :: mmheader*15, fmt*15, object*10, type*10, sym*15
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character(1024) :: line
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integer :: nrow, ncol, nnzero, neltvl, nrhs, nrhsix
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integer :: ircode, i,iel,nzr,infile,&
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& j, liwork, root, nprow, npcol, myprow, mypcol
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logical, parameter :: debug=.false.
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iret = 0
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if (present(filename)) then
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if (filename=='-') then
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infile=5
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else
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if (present(iunit)) then
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infile=iunit
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else
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infile=99
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endif
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open(infile,file=filename, status='OLD', err=901, action='READ')
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endif
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else
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if (present(iunit)) then
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infile=iunit
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else
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infile=5
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endif
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endif
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read(infile,fmt=*,end=902) mmheader, object, fmt, type, sym
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if ( (tolower(object) /= 'matrix').or.(tolower(fmt)/='coordinate')) then
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write(0,*) 'READ_MATRIX: input file type not yet supported'
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iret=909
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return
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end if
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if (debug) write(*,*) mmheader,':', object, ':',fmt,':', type,':', sym
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do
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read(infile,fmt='(a)') line
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if (line(1:1) /= '%') exit
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end do
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if (debug) write(*,*) 'Line on input : "',line,'"'
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read(line,fmt=*) nrow,ncol,nnzero
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if (debug) write(*,*) 'Out: ',nrow,ncol,nnzero
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if ((tolower(type) == 'real').and.(tolower(sym) == 'general')) then
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call psb_sp_all(nrow,ncol,a,nnzero,ircode)
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a%fida = 'COO'
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a%descra = 'G'
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if (ircode /= 0) goto 993
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do i=1,nnzero
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read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),a%aspk(i)
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end do
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a%infoa(psb_nnz_) = nnzero
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call psb_ipcoo2csr(a,ircode)
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else if ((tolower(type) == 'real').and.(tolower(sym) == 'symmetric')) then
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! we are generally working with non-symmetric matrices, so
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! we de-symmetrize what we are about to read
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call psb_sp_all(nrow,ncol,a,2*nnzero,ircode)
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a%fida = 'COO'
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a%descra = 'G'
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if (ircode /= 0) goto 993
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do i=1,nnzero
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read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),a%aspk(i)
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end do
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nzr = nnzero
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do i=1,nnzero
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if (a%ia1(i) /= a%ia2(i)) then
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nzr = nzr + 1
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a%aspk(nzr) = a%aspk(i)
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a%ia1(nzr) = a%ia2(i)
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a%ia2(nzr) = a%ia1(i)
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end if
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end do
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a%infoa(psb_nnz_) = nzr
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call psb_ipcoo2csr(a,ircode)
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else
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write(0,*) 'read_matrix: matrix type not yet supported'
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iret=904
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end if
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if (infile/=5) close(infile)
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return
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! open failed
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901 iret=901
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write(0,*) 'read_matrix: could not open file ',filename,' for input'
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return
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902 iret=902
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write(0,*) 'READ_MATRIX: Unexpected end of file '
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return
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993 iret=993
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write(0,*) 'READ_MATRIX: Memory allocation failure'
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return
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end subroutine dmm_mat_read
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subroutine dmm_mat_write(a,mtitle,iret,eiout,filename)
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use psb_sparse_mod
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implicit none
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type(psb_dspmat_type), intent(in) :: a
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integer, intent(out) :: iret
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character(len=*), intent(in) :: mtitle
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integer, optional, intent(in) :: eiout
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character(len=*), optional, intent(in) :: filename
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integer :: iout
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iret = 0
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if (present(filename)) then
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if (filename=='-') then
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iout=6
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else
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if (present(eiout)) then
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iout = eiout
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else
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iout=99
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endif
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open(iout,file=filename, err=901, action='WRITE')
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endif
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else
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if (present(eiout)) then
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iout = eiout
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else
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iout=6
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endif
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endif
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call psb_csprt(iout,a,head=mtitle)
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if (iout /= 6) close(iout)
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return
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901 continue
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iret=901
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write(0,*) 'Error while opening ',filename
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return
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end subroutine dmm_mat_write
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subroutine zmm_mat_read(a, iret, iunit, filename)
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use psb_sparse_mod
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implicit none
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type(psb_zspmat_type), intent(out) :: a
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integer, intent(out) :: iret
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integer, optional, intent(in) :: iunit
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character(len=*), optional, intent(in) :: filename
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character :: mmheader*15, fmt*15, object*10, type*10, sym*15
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character(1024) :: line
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integer :: nrow, ncol, nnzero, neltvl, nrhs, nrhsix
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integer :: ircode, i,iel,nzr,infile,&
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& j, liwork, root, nprow, npcol, myprow, mypcol
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real(kind(1.d0)) :: are, aim
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logical, parameter :: debug=.false.
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iret = 0
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if (present(filename)) then
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if (filename=='-') then
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infile=5
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else
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if (present(iunit)) then
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infile=iunit
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else
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infile=99
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endif
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open(infile,file=filename, status='OLD', err=901, action='READ')
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endif
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else
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if (present(iunit)) then
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infile=iunit
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else
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infile=5
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endif
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endif
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read(infile,fmt=*,end=902) mmheader, object, fmt, type, sym
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if ( (tolower(object) /= 'matrix').or.(tolower(fmt)/='coordinate')) then
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write(0,*) 'READ_MATRIX: input file type not yet supported'
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iret=909
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return
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end if
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if (debug) write(*,*) mmheader,':', object, ':',fmt,':', type,':', sym
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do
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read(infile,fmt='(a)') line
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if (line(1:1) /= '%') exit
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end do
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if (debug) write(*,*) 'Line on input : "',line,'"'
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read(line,fmt=*) nrow,ncol,nnzero
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if (debug) write(*,*) 'Out: ',nrow,ncol,nnzero
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if ((tolower(type) == 'complex').and.(tolower(sym) == 'general')) then
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call psb_sp_all(nrow,ncol,a,nnzero,ircode)
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if (ircode /= 0) goto 993
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a%fida = 'COO'
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a%descra = 'G'
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do i=1,nnzero
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read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),are,aim
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a%aspk(i) = cmplx(are,aim)
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end do
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a%infoa(psb_nnz_) = nnzero
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call psb_ipcoo2csr(a,ircode)
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else if ((tolower(type) == 'complex').and.(tolower(sym) == 'symmetric')) then
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! we are generally working with non-symmetric matrices, so
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! we de-symmetrize what we are about to read
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call psb_sp_all(nrow,ncol,a,2*nnzero,ircode)
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if (ircode /= 0) goto 993
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a%fida = 'COO'
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a%descra = 'G'
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do i=1,nnzero
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read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),are,aim
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a%aspk(i) = cmplx(are,aim)
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end do
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nzr = nnzero
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do i=1,nnzero
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if (a%ia1(i) /= a%ia2(i)) then
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nzr = nzr + 1
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a%aspk(nzr) = a%aspk(i)
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a%ia1(nzr) = a%ia2(i)
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a%ia2(nzr) = a%ia1(i)
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end if
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end do
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a%infoa(psb_nnz_) = nzr
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call psb_ipcoo2csr(a,ircode)
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else if ((tolower(type) == 'complex').and.(tolower(sym) == 'hermitian')) then
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! we are generally working with non-symmetric matrices, so
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! we de-symmetrize what we are about to read
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call psb_sp_all(nrow,ncol,a,2*nnzero,ircode)
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if (ircode /= 0) goto 993
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a%fida = 'COO'
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a%descra = 'G'
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do i=1,nnzero
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read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),are,aim
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a%aspk(i) = cmplx(are,aim)
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end do
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nzr = nnzero
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do i=1,nnzero
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if (a%ia1(i) /= a%ia2(i)) then
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nzr = nzr + 1
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a%aspk(nzr) = conjg(a%aspk(i))
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a%ia1(nzr) = a%ia2(i)
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a%ia2(nzr) = a%ia1(i)
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end if
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end do
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a%infoa(psb_nnz_) = nzr
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call psb_ipcoo2csr(a,ircode)
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else
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write(0,*) 'read_matrix: matrix type not yet supported'
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iret=904
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end if
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if (infile/=5) close(infile)
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return
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! open failed
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901 iret=901
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write(0,*) 'read_matrix: could not open file ',filename,' for input'
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return
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902 iret=902
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write(0,*) 'READ_MATRIX: Unexpected end of file '
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return
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993 iret=993
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write(0,*) 'READ_MATRIX: Memory allocation failure'
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return
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end subroutine zmm_mat_read
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subroutine zmm_mat_write(a,mtitle,iret,eiout,filename)
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use psb_sparse_mod
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implicit none
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type(psb_zspmat_type), intent(in) :: a
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integer, intent(out) :: iret
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character(len=*), intent(in) :: mtitle
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integer, optional, intent(in) :: eiout
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character(len=*), optional, intent(in) :: filename
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integer :: iout
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iret = 0
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if (present(filename)) then
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if (filename=='-') then
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iout=6
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else
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if (present(eiout)) then
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iout = eiout
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else
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iout=99
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endif
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open(iout,file=filename, err=901, action='WRITE')
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endif
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else
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if (present(eiout)) then
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iout = eiout
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else
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iout=6
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endif
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endif
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call psb_csprt(iout,a,head=mtitle)
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if (iout /= 6) close(iout)
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return
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901 continue
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iret=901
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write(0,*) 'Error while opening ',filename
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return
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end subroutine zmm_mat_write
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end module mmio
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