mirror of
https://github.com/sfilippone/psblas3.git
synced 2026-10-17 03:12:15 +00:00
This commit is contained in:
Salvatore Filippone
+103
-113
@@ -36,11 +36,12 @@ module psb_mat_dist_mod
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contains
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subroutine dmatdistf (a_glob, a, parts, ictxt, desc_a,&
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& b_glob, b, info, inroot,fmt,nb)
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& b_glob, b, info, inroot,fmt)
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!
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! an utility subroutine to distribute a matrix among processors
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! according to a user defined data distribution, using
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! according to a user defined data distribution, using
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! sparse matrix subroutines.
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!
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! type(d_spmat) :: a_glob
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@@ -82,7 +83,7 @@ contains
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! on entry: fresh variable.
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! on exit : the updated array descriptor
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!
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! real(kind(1.d0)), optional :: b_glob(:)
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! real(kind(1.d0)), optional :: b_glob(:)
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! on entry: this contains right hand side.
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! on exit :
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!
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@@ -105,7 +106,7 @@ contains
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real(kind(1.d0)), allocatable :: b(:)
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type (psb_desc_type) :: desc_a
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integer, intent(out) :: info
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integer, optional :: inroot,nb
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integer, optional :: inroot
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character(len=5), optional :: fmt
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interface
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@@ -119,15 +120,15 @@ contains
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end interface
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! local variables
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integer :: np, iam
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integer :: np, iam
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integer :: ircode, length_row, i_count, j_count,&
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& k_count, blockdim, root, liwork, nrow, ncol, nnzero, nrhs,&
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& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5),nb_
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integer, allocatable :: iwork(:)
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character :: afmt*5, atyp*5
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& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5)
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integer, allocatable :: iwork(:)
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character :: afmt*5, atyp*5
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integer, allocatable :: irow(:),icol(:)
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real(kind(1.d0)), allocatable :: val(:)
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integer, parameter :: nbdef=30
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integer, parameter :: nb=30
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real(kind(1.d0)) :: t0, t1, t2, t3, t4, t5
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character(len=20) :: name, ch_err
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@@ -142,13 +143,7 @@ contains
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else
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root = 0
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end if
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if (present(nb)) then
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nb_ = max(nb,1)
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else
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nb_ = nbdef
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end if
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call psb_info(ictxt, iam, np)
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if (iam == root) then
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! extract information from a_glob
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if (a_glob%fida.ne. 'CSR') then
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@@ -167,13 +162,12 @@ contains
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endif
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nnzero = size(a_glob%aspk)
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nrhs = 1
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! broadcast informations to other processors
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endif
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call psb_bcast(ictxt, nrow,root)
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call psb_bcast(ictxt, ncol,root)
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call psb_bcast(ictxt, nnzero,root)
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call psb_bcast(ictxt, nrhs,root)
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! broadcast informations to other processors
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call psb_bcast(ictxt,nrow, root)
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call psb_bcast(ictxt,ncol, root)
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call psb_bcast(ictxt,nnzero, root)
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call psb_bcast(ictxt,nrhs, root)
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liwork = max(np, nrow + ncol)
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allocate(iwork(liwork), stat = info)
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if (info /= 0) then
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@@ -193,7 +187,6 @@ contains
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_spall(a,desc_a,info,nnz=nnzero/np)
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if(info/=0) then
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info=4010
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@@ -208,11 +201,10 @@ contains
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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isize = max(3*nb,ncol)
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isize = ((nnzero+nrow)/nrow) * nb_
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isize = max(isize,4*nb_)
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allocate(val(isize),irow(isize),icol(isize),stat=info)
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allocate(val(nb*ncol),irow(nb*ncol),icol(nb*ncol),stat=info)
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if(info/=0) then
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info=4010
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ch_err='Allocate'
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@@ -231,7 +223,7 @@ contains
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iproc = iwork(1)
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do
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j_count = j_count + 1
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if (j_count-i_count >= nb_) exit
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if (j_count-i_count >= nb) exit
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if (j_count > nrow) exit
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call parts(j_count,nrow,np,iwork, length_row)
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if (length_row /= 1 ) exit
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@@ -248,7 +240,7 @@ contains
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call psb_sp_getrow(i,a_glob,nz,&
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& irow,icol,val,info,nzin=ll,append=.true.)
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if (info /= 0) then
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if (nz > min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
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if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
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write(0,*) 'Allocation failure? This should not happen!'
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end if
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call psb_errpush(info,name,a_err=ch_err)
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@@ -265,8 +257,8 @@ contains
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),&
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& b_glob(i_count:j_count-1),b,desc_a,info)
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call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),b_glob(i_count:j_count-1),&
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& b,desc_a,info)
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if(info/=0) then
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info=4010
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ch_err='psb_ins'
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@@ -277,11 +269,8 @@ contains
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call psb_snd(ictxt,nnr,iproc)
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call psb_snd(ictxt,ll,iproc)
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call psb_snd(ictxt,irow(1:ll),iproc)
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call psb_rcv(ictxt,ll,iproc)
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call psb_snd(ictxt,icol(1:ll),iproc)
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call psb_rcv(ictxt,ll,iproc)
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call psb_snd(ictxt,val(1:ll),iproc)
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call psb_rcv(ictxt,ll,iproc)
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call psb_snd(ictxt,b_glob(i_count:j_count-1),iproc)
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call psb_rcv(ictxt,ll,iproc)
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endif
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@@ -303,15 +292,10 @@ contains
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endif
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call psb_rcv(ictxt,irow(1:ll),root)
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call psb_snd(ictxt,ll,root)
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call psb_rcv(ictxt,icol(1:ll),root)
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call psb_snd(ictxt,ll,root)
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call psb_rcv(ictxt,val(1:ll),root)
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call psb_snd(ictxt,ll,root)
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call psb_rcv(ictxt,b_glob(i_count:i_count+nnr-1),root)
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call psb_snd(ictxt,ll,root)
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call psb_spins(ll,irow,icol,val,a,desc_a,info)
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if(info/=0) then
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info=4010
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@@ -327,8 +311,6 @@ contains
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_snd(ictxt,ll,root)
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endif
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endif
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@@ -344,7 +326,7 @@ contains
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ll = 0
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do i= i_count, i_count
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call psb_sp_getrow(i,a_glob,nz,&
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& irow,icol,val,info,nzin=ll,append=.true.)
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& irow,icol,val,info,nzin=ll,append=.true.)
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if (info /= 0) then
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if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
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write(0,*) 'Allocation failure? This should not happen!'
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@@ -375,25 +357,19 @@ contains
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else
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call psb_snd(ictxt,ll,k_count)
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call psb_snd(ictxt,irow(1:ll),k_count)
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call psb_rcv(ictxt,ll,k_count)
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call psb_snd(ictxt,icol(1:ll),k_count)
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call psb_rcv(ictxt,ll,k_count)
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call psb_snd(ictxt,val(1:ll),k_count)
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call psb_rcv(ictxt,ll,k_count)
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call psb_snd(ictxt,b_glob(i_count),k_count)
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call psb_rcv(ictxt,ll,k_count)
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endif
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else if (iam /= root) then
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if (k_count == iam) then
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call psb_rcv(ictxt,ll,root)
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call psb_rcv(ictxt,irow(1:ll),root)
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call psb_snd(ictxt,ll,root)
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call psb_rcv(ictxt,icol(1:ll),root)
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call psb_snd(ictxt,ll,root)
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call psb_rcv(ictxt,val(1:ll),root)
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call psb_snd(ictxt,ll,root)
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call psb_rcv(ictxt,b_glob(i_count),root)
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call psb_snd(ictxt,ll,root)
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call psb_spins(ll,irow,icol,val,a,desc_a,info)
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if(info/=0) then
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info=4010
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@@ -409,7 +385,6 @@ contains
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_snd(ictxt,ll,root)
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endif
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endif
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end do
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@@ -422,6 +397,7 @@ contains
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else
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afmt = 'CSR'
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endif
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call psb_barrier(ictxt)
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t0 = psb_wtime()
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call psb_cdasb(desc_a,info)
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@@ -450,8 +426,6 @@ contains
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write(*,*) 'sparse matrix assembly: ',t3-t2
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end if
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call psb_geasb(b,desc_a,info)
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if(info/=0)then
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info=4010
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@@ -485,7 +459,7 @@ contains
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subroutine dmatdistv (a_glob, a, v, ictxt, desc_a,&
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& b_glob, b, info, inroot,fmt,nb)
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& b_glob, b, info, inroot,fmt)
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!
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! an utility subroutine to distribute a matrix among processors
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! according to a user defined data distribution, using
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@@ -549,20 +523,21 @@ contains
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integer :: ictxt, v(:)
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type(psb_dspmat_type) :: a
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real(kind(1.d0)), allocatable :: b(:)
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type (psb_desc_type) :: desc_a
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type(psb_desc_type) :: desc_a
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integer, intent(out) :: info
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integer, optional :: inroot,nb
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integer, optional :: inroot
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character(len=5), optional :: fmt
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integer :: np, iam
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integer :: ircode, length_row, i_count, j_count,&
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& k_count, blockdim, root, liwork, nrow, ncol, nnzero, nrhs,&
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& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5),nb_
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integer, allocatable :: iwork(:)
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character :: afmt*5, atyp*5
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& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5)
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integer, allocatable :: iwork(:)
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character :: afmt*5, atyp*5
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integer, allocatable :: irow(:),icol(:)
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real(kind(1.d0)), allocatable :: val(:)
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integer, parameter :: nbdef=30
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integer, parameter :: nb=30
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logical, parameter :: newt=.true.
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real(kind(1.d0)) :: t0, t1, t2, t3, t4, t5
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character(len=20) :: name, ch_err
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@@ -577,16 +552,11 @@ contains
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else
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root = 0
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end if
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if (present(nb)) then
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nb_ = max(nb,1)
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else
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nb_ = nbdef
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end if
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call psb_info(ictxt, iam, np)
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if (iam == root) then
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! extract information from a_glob
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if (a_glob%fida.ne. 'CSR') then
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if (toupper(a_glob%fida) /= 'CSR') then
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info=135
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ch_err='CSR'
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call psb_errpush(info,name,a_err=ch_err)
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@@ -604,7 +574,6 @@ contains
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nnzero = size(a_glob%aspk)
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nrhs = 1
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end if
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! broadcast informations to other processors
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call psb_bcast(ictxt,nrow, root)
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@@ -621,29 +590,6 @@ contains
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goto 9999
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endif
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if (iam /= root) then
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allocate(a_glob%ia1(nnzero),&
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& a_glob%ia2(nrow+1),a_glob%aspk(nnzero),a_glob%pl(1),a_glob%pr(1),stat=info)
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if(info/=0) then
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info=4010
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ch_err='psb_cdall'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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a_glob%pl=0
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a_glob%pr=0
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end if
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call psb_bcast(ictxt,a_glob%m,root)
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call psb_bcast(ictxt,a_glob%k,root)
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call psb_bcast(ictxt,a_glob%fida,root)
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call psb_bcast(ictxt,a_glob%descra,root)
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call psb_bcast(ictxt,a_glob%infoa(1:psb_ifasize_),root)
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call psb_bcast(ictxt,a_glob%ia1(1:nnzero),root)
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call psb_bcast(ictxt,a_glob%aspk(1:nnzero),root)
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call psb_bcast(ictxt,a_glob%ia2(1:nrow+1),root)
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call psb_cdall(ictxt,desc_a,info,vg=v)
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if(info/=0) then
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info=4010
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@@ -666,11 +612,10 @@ contains
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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isize = max(3*nb,ncol)
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isize = ((nnzero+nrow)/nrow) * nb_
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isize = max(isize,4*nb_)
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allocate(val(isize),irow(isize),icol(isize),stat=info)
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allocate(val(nb*ncol),irow(nb*ncol),icol(nb*ncol),stat=info)
|
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if(info/=0) then
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info=4010
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ch_err='Allocate'
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@@ -687,7 +632,7 @@ contains
|
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|
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do
|
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j_count = j_count + 1
|
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if (j_count-i_count >= nb_) exit
|
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if (j_count-i_count >= nb) exit
|
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if (j_count > nrow) exit
|
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if (v(j_count) /= iproc ) exit
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end do
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@@ -695,9 +640,7 @@ contains
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! now we should insert rows i_count..j_count-1
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nnr = j_count - i_count
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|
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|
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if (iproc == iam) then
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|
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if (iam == root) then
|
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ll = 0
|
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do i= i_count, j_count-1
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call psb_sp_getrow(i,a_glob,nz,&
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@@ -711,23 +654,71 @@ contains
|
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end if
|
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ll = ll + nz
|
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end do
|
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|
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call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
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if(info/=0) then
|
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info=4010
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ch_err='psb_spins'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
|
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end if
|
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|
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call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),b_glob(i_count:j_count-1),&
|
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& b,desc_a,info)
|
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if(info/=0) then
|
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info=4010
|
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ch_err='dsins'
|
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call psb_errpush(info,name,a_err=ch_err)
|
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goto 9999
|
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end if
|
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|
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if (iproc == iam) then
|
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call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
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if(info/=0) then
|
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info=4010
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ch_err='psb_spins'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
|
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end if
|
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|
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call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),b_glob(i_count:j_count-1),&
|
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& b,desc_a,info)
|
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if(info/=0) then
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info=4010
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ch_err='dsins'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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else
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call psb_snd(ictxt,nnr,iproc)
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call psb_snd(ictxt,ll,iproc)
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call psb_snd(ictxt,irow(1:ll),iproc)
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call psb_snd(ictxt,icol(1:ll),iproc)
|
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call psb_snd(ictxt,val(1:ll),iproc)
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call psb_snd(ictxt,b_glob(i_count:j_count-1),iproc)
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call psb_rcv(ictxt,ll,iproc)
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endif
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else if (iam /= root) then
|
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|
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if (iproc == iam) then
|
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call psb_rcv(ictxt,nnr,root)
|
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call psb_rcv(ictxt,ll,root)
|
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if (ll > size(val)) then
|
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write(0,*) iam,'need to reallocate ',ll
|
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deallocate(val,irow,icol)
|
||||
allocate(val(ll),irow(ll),icol(ll),stat=info)
|
||||
if(info/=0) then
|
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info=4010
|
||||
ch_err='Allocate'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
endif
|
||||
call psb_rcv(ictxt,irow(1:ll),root)
|
||||
call psb_rcv(ictxt,icol(1:ll),root)
|
||||
call psb_rcv(ictxt,val(1:ll),root)
|
||||
call psb_rcv(ictxt,b_glob(i_count:i_count+nnr-1),root)
|
||||
call psb_snd(ictxt,ll,root)
|
||||
|
||||
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
||||
if(info/=0) then
|
||||
info=4010
|
||||
ch_err='spins'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
call psb_geins(nnr,(/(i,i=i_count,i_count+nnr-1)/),&
|
||||
& b_glob(i_count:i_count+nnr-1),b,desc_a,info)
|
||||
if(info/=0) then
|
||||
info=4010
|
||||
ch_err='psdsins'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
endif
|
||||
endif
|
||||
i_count = j_count
|
||||
|
||||
@@ -792,7 +783,6 @@ contains
|
||||
|
||||
end subroutine dmatdistv
|
||||
|
||||
|
||||
subroutine zmatdistf (a_glob, a, parts, ictxt, desc_a,&
|
||||
& b_glob, b, info, inroot,fmt)
|
||||
!
|
||||
|
||||
Reference in New Issue
Block a user