From a1c90893246e7cd48fe99ef7c11e314808b52628 Mon Sep 17 00:00:00 2001 From: Salvatore Filippone Date: Wed, 17 Jan 2007 14:59:36 +0000 Subject: [PATCH] Moving files from PSBLAS2 to MLD2P4 --- psb_dasmatbld.f90 | 245 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 245 insertions(+) create mode 100644 psb_dasmatbld.f90 diff --git a/psb_dasmatbld.f90 b/psb_dasmatbld.f90 new file mode 100644 index 00000000..a15740f2 --- /dev/null +++ b/psb_dasmatbld.f90 @@ -0,0 +1,245 @@ +!!$ +!!$ +!!$ MD2P4 +!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS +!!$ for +!!$ Parallel Sparse BLAS v2.0 +!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata +!!$ Alfredo Buttari University of Rome Tor Vergata +!!$ Daniela di Serafino Second University of Naples +!!$ Pasqua D'Ambra ICAR-CNR +!!$ +!!$ 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 MD2P4 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 MD2P4 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. +!!$ +!!$ +!***************************************************************************** +!* * +!* This routine does two things: * +!* 1. Builds the auxiliary descriptor. This is always done even for * +!* Block Jacobi. * +!* 2. Retrieves the remote matrix pieces. * +!* * +!* All of 1. is done under psb_cdovr, which is independent of CSR, and * +!* has been placed in the TOOLS directory because it might be used for * +!* building a descriptor for an extended stencil in a PDE solver without * +!* necessarily applying AS precond. * +!* * +!* * +!* * +!* * +!* * +!***************************************************************************** +Subroutine psb_dasmatbld(ptype,novr,a,blk,desc_data,upd,desc_p,info,outfmt) + + use psb_base_mod + use psb_prec_type + Implicit None + + ! .. Array Arguments .. + integer, intent(in) :: ptype,novr + Type(psb_dspmat_type), Intent(in) :: a + Type(psb_dspmat_type), Intent(inout) :: blk + integer, intent(out) :: info + Type(psb_desc_type), Intent(inout) :: desc_p + Type(psb_desc_type), Intent(in) :: desc_data + Character, Intent(in) :: upd + character(len=5), optional :: outfmt + + + real(kind(1.d0)) :: t1,t2,t3,mpi_wtime + external mpi_wtime + integer icomm + + ! .. Local Scalars .. + Integer :: k, np,me,m,nnzero,& + & ictxt, n_col,ier,n,int_err(5),& + & tot_recv, ircode, n_row,nhalo, nrow_a,err_act + Logical,Parameter :: debug=.false., debugprt=.false. + character(len=20) :: name, ch_err + name='psb_dasmatbld' + if(psb_get_errstatus().ne.0) return + info=0 + call psb_erractionsave(err_act) + + If(debug) Write(0,*)'IN DASMATBLD ', upd + ictxt=desc_data%matrix_data(psb_ctxt_) + Call psb_info(ictxt, me, np) + + tot_recv=0 + + nrow_a = desc_data%matrix_data(psb_n_row_) + nnzero = Size(a%aspk) + n_col = desc_data%matrix_data(psb_n_col_) + nhalo = n_col-nrow_a + + + If (ptype == bja_) Then + ! + ! Block Jacobi. Copy the descriptor, just in case we want to + ! do the renumbering. + ! + If(debug) Write(0,*)' asmatbld calling allocate ' + call psb_sp_all(0,0,blk,1,info) + if(info /= 0) then + info=4010 + ch_err='psb_sp_all' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + blk%fida = 'COO' + blk%infoa(psb_nnz_) = 0 + If(debug) Write(0,*)' asmatbld done spallocate' + If (upd == 'F') Then + call psb_cdcpy(desc_data,desc_p,info) + If(debug) Write(0,*)' asmatbld done cdcpy' + if(info /= 0) then + info=4010 + ch_err='psb_cdcpy' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + endif + + Else If (ptype == asm_) Then + + + ! + ! Additive Schwarz variant. + ! + ! + + + if (novr < 0) then + info=3 + int_err(1)=novr + call psb_errpush(info,name,i_err=int_err) + goto 9999 + endif + + if (novr == 0) then + ! + ! This is really just Block Jacobi..... + ! + If(debug) Write(0,*)' asmatbld calling allocate novr=0' + call psb_sp_all(0,0,blk,1,info) + if(info /= 0) then + info=4010 + ch_err='psb_sp_all' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + blk%fida='COO' + blk%infoa(psb_nnz_)=0 + if (debug) write(0,*) 'Calling desccpy' + if (upd == 'F') then + call psb_cdcpy(desc_data,desc_p,info) + If(debug) Write(0,*)' asmatbld done cdcpy' + if(info /= 0) then + info=4010 + ch_err='psb_cdcpy' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + if (debug) write(0,*) 'Early return from asmatbld: P>=3 N_OVR=0' + endif + return + endif + + call psb_get_mpicomm(ictxt,icomm) + + If(debug)Write(0,*)'BEGIN dasmatbld',me,upd,novr + t1 = mpi_wtime() + + If (upd == 'F') Then + ! + ! Build the auiliary descriptor',desc_p%matrix_data(psb_n_row_) + ! + call psb_cdbldovr(a,desc_data,novr,desc_p,info) + if(info /= 0) then + info=4010 + ch_err='psb_cdbldovr' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + Endif + + if(debug) write(0,*) me,' From cdbldovr _:',desc_p%matrix_data(psb_n_row_),& + & desc_p%matrix_data(psb_n_col_) + + + n_row = desc_p%matrix_data(psb_n_row_) + t2 = mpi_wtime() +!!$ open(60+me) +!!$ call psb_cdprt(60+me,desc_p,short=.false.) +!!$ call flush(60+me) +!!$ close(60+me) +!!$ call psb_barrier(ictxt) + if (debug) write(0,*) 'Before sphalo ',blk%fida,blk%m,psb_nnz_,blk%infoa(psb_nnz_) +!!$ ierr = MPE_Log_event( iovrb, 0, "st OVR" ) +!!$ blk%m = n_row-nrow_a +!!$ blk%k = n_row + + if (present(outfmt)) then + if(debug) write(0,*) me,': Calling SPHALO with ',size(blk%ia2) + Call psb_sphalo(a,desc_p,blk,info,outfmt=outfmt) + else + if(debug) write(0,*) me,': Calling SPHALO with ',size(blk%ia2) + Call psb_sphalo(a,desc_p,blk,info) + end if + + + if(info /= 0) then + info=4010 + ch_err='psb_sphalo' + call psb_errpush(info,name,a_err=ch_err) + goto 9999 + end if + + if (debug) write(0,*) 'After psb_sphalo ',blk%fida,blk%m,psb_nnz_,blk%infoa(psb_nnz_) +!!$ ierr = MPE_Log_event( iovre, 0, "ed OVR" ) + + t3 = mpi_wtime() + if (debugprt) then + open(40+me) + call psb_csprt(40+me,blk,head='% Ovrlap rows') + close(40+me) + endif + + + End If + + call psb_erractionrestore(err_act) + return + +9999 continue + call psb_erractionrestore(err_act) + if (err_act.eq.act_abort) then + call psb_error() + return + end if + Return + +End Subroutine psb_dasmatbld +