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317 lines
9.7 KiB
Fortran
317 lines
9.7 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 3.4
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!!$ (C) Copyright 2006, 2010, 2015
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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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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subroutine shb_read(a, iret, iunit, filename,b,g,x,mtitle)
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use psb_base_mod
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implicit none
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type(psb_sspmat_type), intent(out) :: a
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integer(psb_ipk_), intent(out) :: iret
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integer(psb_ipk_), optional, intent(in) :: iunit
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character(len=*), optional, intent(in) :: filename
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real(psb_spk_), optional, allocatable, intent(out) :: b(:,:), g(:,:), x(:,:)
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character(len=72), optional, intent(out) :: mtitle
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character :: rhstype*3,type*3,key*8
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character(len=72) :: mtitle_
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character indfmt*16,ptrfmt*16,rhsfmt*20,valfmt*20
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integer(psb_ipk_) :: indcrd, ptrcrd, totcrd,&
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& valcrd, rhscrd, nrow, ncol, nnzero, neltvl, nrhs, nrhsix
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type(psb_s_csc_sparse_mat) :: acsc
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type(psb_s_coo_sparse_mat) :: acoo
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integer(psb_ipk_) :: ircode, i,nzr,infile, info
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character(len=*), parameter :: fmt10='(a72,a8,/,5i14,/,a3,11x,4i14,/,2a16,2a20)'
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character(len=*), parameter :: fmt11='(a3,11x,2i14)'
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character(len=*), parameter :: fmt111='(1x,a8,1x,i8,1x,a10)'
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iret = 0
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ircode = 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=fmt10) mtitle_,key,totcrd,ptrcrd,indcrd,valcrd,rhscrd,&
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& type,nrow,ncol,nnzero,neltvl,ptrfmt,indfmt,valfmt,rhsfmt
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if (rhscrd > 0) read(infile,fmt=fmt11)rhstype,nrhs,nrhsix
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call acsc%allocate(nrow,ncol,nnzero)
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if (ircode /= 0 ) then
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write(psb_err_unit,*) 'Memory allocation failed'
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goto 993
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end if
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if (present(mtitle)) mtitle=mtitle_
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if (psb_tolower(type(1:1)) == 'r') then
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if (psb_tolower(type(2:2)) == 'u') then
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read (infile,fmt=ptrfmt) (acsc%icp(i),i=1,ncol+1)
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read (infile,fmt=indfmt) (acsc%ia(i),i=1,nnzero)
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if (valcrd > 0) read (infile,fmt=valfmt) (acsc%val(i),i=1,nnzero)
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call a%mv_from(acsc)
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if (present(b)) then
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if ((psb_toupper(rhstype(1:1)) == 'F').and.(rhscrd > 0)) then
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call psb_realloc(nrow,1,b,info)
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read (infile,fmt=rhsfmt) (b(i,1),i=1,nrow)
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endif
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endif
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if (present(g)) then
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if ((psb_toupper(rhstype(2:2)) == 'G').and.(rhscrd > 0)) then
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call psb_realloc(nrow,1,g,info)
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read (infile,fmt=rhsfmt) (g(i,1),i=1,nrow)
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endif
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endif
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if (present(x)) then
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if ((psb_toupper(rhstype(3:3)) == 'X').and.(rhscrd > 0)) then
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call psb_realloc(nrow,1,x,info)
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read (infile,fmt=rhsfmt) (x(i,1),i=1,nrow)
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endif
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endif
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else if (psb_tolower(type(2:2)) == 's') 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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read (infile,fmt=ptrfmt) (acsc%icp(i),i=1,ncol+1)
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read (infile,fmt=indfmt) (acsc%ia(i),i=1,nnzero)
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if (valcrd > 0) read (infile,fmt=valfmt) (acsc%val(i),i=1,nnzero)
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if (present(b)) then
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if ((psb_toupper(rhstype(1:1)) == 'F').and.(rhscrd > 0)) then
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call psb_realloc(nrow,1,b,info)
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read (infile,fmt=rhsfmt) (b(i,1),i=1,nrow)
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endif
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endif
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if (present(g)) then
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if ((psb_toupper(rhstype(2:2)) == 'G').and.(rhscrd > 0)) then
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call psb_realloc(nrow,1,g,info)
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read (infile,fmt=rhsfmt) (g(i,1),i=1,nrow)
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endif
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endif
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if (present(x)) then
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if ((psb_toupper(rhstype(3:3)) == 'X').and.(rhscrd > 0)) then
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call psb_realloc(nrow,1,x,info)
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read (infile,fmt=rhsfmt) (x(i,1),i=1,nrow)
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endif
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endif
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call acoo%mv_from_fmt(acsc,info)
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call acoo%reallocate(2*nnzero)
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! A is now in COO format
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nzr = nnzero
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do i=1,nnzero
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if (acoo%ia(i) /= acoo%ja(i)) then
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nzr = nzr + 1
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acoo%val(nzr) = acoo%val(i)
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acoo%ia(nzr) = acoo%ja(i)
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acoo%ja(nzr) = acoo%ia(i)
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end if
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end do
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call acoo%set_nzeros(nzr)
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call acoo%fix(ircode)
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if (ircode == 0) call a%mv_from(acoo)
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if (ircode /= 0) goto 993
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else
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write(psb_err_unit,*) 'read_matrix: matrix type not yet supported'
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iret=904
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end if
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else
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write(psb_err_unit,*) 'read_matrix: matrix type not yet supported'
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iret=904
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end if
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call a%cscnv(ircode,type='csr')
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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(psb_err_unit,*) '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(psb_err_unit,*) 'HB_READ: Unexpected end of file '
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return
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993 iret=993
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write(psb_err_unit,*) 'HB_READ: Memory allocation failure'
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return
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end subroutine shb_read
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subroutine shb_write(a,iret,iunit,filename,key,rhs,g,x,mtitle)
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use psb_base_mod
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implicit none
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type(psb_sspmat_type), intent(in), target :: a
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integer(psb_ipk_), intent(out) :: iret
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character(len=*), optional, intent(in) :: mtitle
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integer(psb_ipk_), optional, intent(in) :: iunit
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character(len=*), optional, intent(in) :: filename
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character(len=*), optional, intent(in) :: key
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real(psb_spk_), optional :: rhs(:), g(:), x(:)
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integer(psb_ipk_) :: iout
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character(len=*), parameter:: ptrfmt='(10I8)',indfmt='(10I8)'
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integer(psb_ipk_), parameter :: jptr=10,jind=10
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character(len=*), parameter:: valfmt='(4E20.12)',rhsfmt='(4E20.12)'
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integer(psb_ipk_), parameter :: jval=4,jrhs=4
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character(len=*), parameter :: fmt10='(a72,a8,/,5i14,/,a3,11x,4i14,/,2a16,2a20)'
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character(len=*), parameter :: fmt11='(a3,11x,2i14)'
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character(len=*), parameter :: fmt111='(1x,a8,1x,i8,1x,a10)'
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type(psb_s_csc_sparse_mat) :: acsc
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character(len=72) :: mtitle_
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character(len=8) :: key_
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character :: rhstype*3,type*3
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integer(psb_ipk_) :: i,indcrd,ptrcrd,rhscrd,totcrd,valcrd,&
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& nrow,ncol,nnzero, neltvl, nrhs, nrhsix
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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(iunit)) then
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iout = iunit
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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(iunit)) then
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iout = iunit
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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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if (present(mtitle)) then
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mtitle_ = mtitle
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else
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mtitle_ = 'Temporary PSBLAS title '
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endif
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if (present(key)) then
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key_ = key
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else
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key_ = 'PSBMAT00'
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endif
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call acsc%cp_from_fmt(a%a, iret)
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if (iret /= 0) return
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nrow = acsc%get_nrows()
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ncol = acsc%get_ncols()
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nnzero = acsc%get_nzeros()
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neltvl = 0
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ptrcrd = (ncol+1)/jptr
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if (mod(ncol+1,jptr) > 0) ptrcrd = ptrcrd + 1
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indcrd = nnzero/jind
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if (mod(nnzero,jind) > 0) indcrd = indcrd + 1
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valcrd = nnzero/jval
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if (mod(nnzero,jval) > 0) valcrd = valcrd + 1
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rhstype = ''
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if (present(rhs)) then
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if (size(rhs)<nrow) then
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rhscrd = 0
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else
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rhscrd = nrow/jrhs
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if (mod(nrow,jrhs) > 0) rhscrd = rhscrd + 1
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endif
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nrhs = 1
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rhstype(1:1) = 'F'
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else
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rhscrd = 0
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nrhs = 0
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end if
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totcrd = ptrcrd + indcrd + valcrd + rhscrd
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nrhsix = nrhs*nrow
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if (present(g)) then
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rhstype(2:2) = 'G'
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end if
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if (present(x)) then
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rhstype(3:3) = 'X'
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end if
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type = 'RUA'
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write (iout,fmt=fmt10) mtitle_,key_,totcrd,ptrcrd,indcrd,valcrd,rhscrd,&
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& type,nrow,ncol,nnzero,neltvl,ptrfmt,indfmt,valfmt,rhsfmt
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if (rhscrd > 0) write (iout,fmt=fmt11) rhstype,nrhs,nrhsix
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write (iout,fmt=ptrfmt) (acsc%icp(i),i=1,ncol+1)
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write (iout,fmt=indfmt) (acsc%ia(i),i=1,nnzero)
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if (valcrd > 0) write (iout,fmt=valfmt) (acsc%val(i),i=1,nnzero)
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if (rhscrd > 0) write (iout,fmt=rhsfmt) (rhs(i),i=1,nrow)
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if (present(g).and.(rhscrd>0)) write (iout,fmt=rhsfmt) (g(i),i=1,nrow)
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if (present(x).and.(rhscrd>0)) write (iout,fmt=rhsfmt) (x(i),i=1,nrow)
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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(psb_err_unit,*) 'Error while opening ',filename
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return
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end subroutine shb_write
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