!!$ !!$ 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 ( (tolower(object) /= 'matrix').or.(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 ((tolower(type) == 'real').and.(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 ((tolower(type) == 'real').and.(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 ( (tolower(object) /= 'matrix').or.(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 ((tolower(type) == 'complex').and.(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 ((tolower(type) == 'complex').and.(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 ((tolower(type) == 'complex').and.(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