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psblas3/util/psb_mmio_mod.f90

372 lines
10 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 2.2
!!$ (C) Copyright 2006/2007/2008
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the PSBLAS group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
module psb_mmio_mod
public mm_mat_read, mm_mat_write
interface mm_mat_read
module procedure dmm_mat_read, zmm_mat_read
end interface
interface mm_mat_write
module procedure dmm_mat_write,zmm_mat_write
end interface
contains
subroutine dmm_mat_read(a, iret, iunit, filename)
use psb_base_mod
implicit none
type(psb_dspmat_type), intent(out) :: a
integer, intent(out) :: iret
integer, optional, intent(in) :: iunit
character(len=*), optional, intent(in) :: filename
character :: mmheader*15, fmt*15, object*10, type*10, sym*15
character(1024) :: line
integer :: nrow, ncol, nnzero
integer :: ircode, i,nzr,infile
iret = 0
if (present(filename)) then
if (filename=='-') then
infile=5
else
if (present(iunit)) then
infile=iunit
else
infile=99
endif
open(infile,file=filename, status='OLD', err=901, action='READ')
endif
else
if (present(iunit)) then
infile=iunit
else
infile=5
endif
endif
read(infile,fmt=*,end=902) mmheader, object, fmt, type, sym
if ( (psb_tolower(object) /= 'matrix').or.(psb_tolower(fmt)/='coordinate')) then
write(0,*) 'READ_MATRIX: input file type not yet supported'
iret=909
return
end if
do
read(infile,fmt='(a)') line
if (line(1:1) /= '%') exit
end do
read(line,fmt=*) nrow,ncol,nnzero
if ((psb_tolower(type) == 'real').and.(psb_tolower(sym) == 'general')) then
call psb_sp_all(nrow,ncol,a,nnzero,ircode)
a%fida = 'COO'
a%descra = 'G'
if (ircode /= 0) goto 993
do i=1,nnzero
read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),a%aspk(i)
end do
a%infoa(psb_nnz_) = nnzero
call psb_spcnv(a,ircode,afmt='csr')
else if ((psb_tolower(type) == 'real').and.(psb_tolower(sym) == 'symmetric')) then
! we are generally working with non-symmetric matrices, so
! we de-symmetrize what we are about to read
call psb_sp_all(nrow,ncol,a,2*nnzero,ircode)
a%fida = 'COO'
a%descra = 'G'
if (ircode /= 0) goto 993
do i=1,nnzero
read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),a%aspk(i)
end do
nzr = nnzero
do i=1,nnzero
if (a%ia1(i) /= a%ia2(i)) then
nzr = nzr + 1
a%aspk(nzr) = a%aspk(i)
a%ia1(nzr) = a%ia2(i)
a%ia2(nzr) = a%ia1(i)
end if
end do
a%infoa(psb_nnz_) = nzr
call psb_spcnv(a,ircode,afmt='csr')
else
write(0,*) 'read_matrix: matrix type not yet supported'
iret=904
end if
if (infile/=5) close(infile)
return
! open failed
901 iret=901
write(0,*) 'read_matrix: could not open file ',filename,' for input'
return
902 iret=902
write(0,*) 'READ_MATRIX: Unexpected end of file '
return
993 iret=993
write(0,*) 'READ_MATRIX: Memory allocation failure'
return
end subroutine dmm_mat_read
subroutine dmm_mat_write(a,mtitle,iret,iunit,filename)
use psb_base_mod
implicit none
type(psb_dspmat_type), intent(in) :: a
integer, intent(out) :: iret
character(len=*), intent(in) :: mtitle
integer, optional, intent(in) :: iunit
character(len=*), optional, intent(in) :: filename
integer :: iout
iret = 0
if (present(filename)) then
if (filename=='-') then
iout=6
else
if (present(iunit)) then
iout = iunit
else
iout=99
endif
open(iout,file=filename, err=901, action='WRITE')
endif
else
if (present(iunit)) then
iout = iunit
else
iout=6
endif
endif
call psb_csprt(iout,a,head=mtitle)
if (iout /= 6) close(iout)
return
901 continue
iret=901
write(0,*) 'Error while opening ',filename
return
end subroutine dmm_mat_write
subroutine zmm_mat_read(a, iret, iunit, filename)
use psb_base_mod
implicit none
type(psb_zspmat_type), intent(out) :: a
integer, intent(out) :: iret
integer, optional, intent(in) :: iunit
character(len=*), optional, intent(in) :: filename
character :: mmheader*15, fmt*15, object*10, type*10, sym*15
character(1024) :: line
integer :: nrow, ncol, nnzero
integer :: ircode, i,nzr,infile
real(psb_dpk_) :: are, aim
iret = 0
if (present(filename)) then
if (filename=='-') then
infile=5
else
if (present(iunit)) then
infile=iunit
else
infile=99
endif
open(infile,file=filename, status='OLD', err=901, action='READ')
endif
else
if (present(iunit)) then
infile=iunit
else
infile=5
endif
endif
read(infile,fmt=*,end=902) mmheader, object, fmt, type, sym
if ( (psb_tolower(object) /= 'matrix').or.(psb_tolower(fmt)/='coordinate')) then
write(0,*) 'READ_MATRIX: input file type not yet supported'
iret=909
return
end if
do
read(infile,fmt='(a)') line
if (line(1:1) /= '%') exit
end do
read(line,fmt=*) nrow,ncol,nnzero
if ((psb_tolower(type) == 'complex').and.(psb_tolower(sym) == 'general')) then
call psb_sp_all(nrow,ncol,a,nnzero,ircode)
if (ircode /= 0) goto 993
a%fida = 'COO'
a%descra = 'G'
do i=1,nnzero
read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),are,aim
a%aspk(i) = cmplx(are,aim)
end do
a%infoa(psb_nnz_) = nnzero
call psb_spcnv(a,ircode,afmt='csr')
else if ((psb_tolower(type) == 'complex').and.(psb_tolower(sym) == 'symmetric')) then
! we are generally working with non-symmetric matrices, so
! we de-symmetrize what we are about to read
call psb_sp_all(nrow,ncol,a,2*nnzero,ircode)
if (ircode /= 0) goto 993
a%fida = 'COO'
a%descra = 'G'
do i=1,nnzero
read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),are,aim
a%aspk(i) = cmplx(are,aim)
end do
nzr = nnzero
do i=1,nnzero
if (a%ia1(i) /= a%ia2(i)) then
nzr = nzr + 1
a%aspk(nzr) = a%aspk(i)
a%ia1(nzr) = a%ia2(i)
a%ia2(nzr) = a%ia1(i)
end if
end do
a%infoa(psb_nnz_) = nzr
call psb_spcnv(a,ircode,afmt='csr')
else if ((psb_tolower(type) == 'complex').and.(psb_tolower(sym) == 'hermitian')) then
! we are generally working with non-symmetric matrices, so
! we de-symmetrize what we are about to read
call psb_sp_all(nrow,ncol,a,2*nnzero,ircode)
if (ircode /= 0) goto 993
a%fida = 'COO'
a%descra = 'G'
do i=1,nnzero
read(infile,fmt=*,end=902) a%ia1(i),a%ia2(i),are,aim
a%aspk(i) = cmplx(are,aim)
end do
nzr = nnzero
do i=1,nnzero
if (a%ia1(i) /= a%ia2(i)) then
nzr = nzr + 1
a%aspk(nzr) = conjg(a%aspk(i))
a%ia1(nzr) = a%ia2(i)
a%ia2(nzr) = a%ia1(i)
end if
end do
a%infoa(psb_nnz_) = nzr
call psb_spcnv(a,ircode,afmt='csr')
else
write(0,*) 'read_matrix: matrix type not yet supported'
iret=904
end if
if (infile/=5) close(infile)
return
! open failed
901 iret=901
write(0,*) 'read_matrix: could not open file ',filename,' for input'
return
902 iret=902
write(0,*) 'READ_MATRIX: Unexpected end of file '
return
993 iret=993
write(0,*) 'READ_MATRIX: Memory allocation failure'
return
end subroutine zmm_mat_read
subroutine zmm_mat_write(a,mtitle,iret,iunit,filename)
use psb_base_mod
implicit none
type(psb_zspmat_type), intent(in) :: a
integer, intent(out) :: iret
character(len=*), intent(in) :: mtitle
integer, optional, intent(in) :: iunit
character(len=*), optional, intent(in) :: filename
integer :: iout
iret = 0
if (present(filename)) then
if (filename=='-') then
iout=6
else
if (present(iunit)) then
iout = iunit
else
iout=99
endif
open(iout,file=filename, err=901, action='WRITE')
endif
else
if (present(iunit)) then
iout = iunit
else
iout=6
endif
endif
call psb_csprt(iout,a,head=mtitle)
if (iout /= 6) close(iout)
return
901 continue
iret=901
write(0,*) 'Error while opening ',filename
return
end subroutine zmm_mat_write
end module psb_mmio_mod