|
|
|
@ -94,6 +94,7 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
real(kind(1.d0)), pointer :: ww(:), aux(:), tx(:),ty(:)
|
|
|
|
|
integer :: ictxt,np,me,isz, err_act
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
character :: trans_
|
|
|
|
|
|
|
|
|
|
name='mld_das_aply'
|
|
|
|
|
info = 0
|
|
|
|
@ -103,6 +104,7 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
|
|
|
|
|
call psb_info(ictxt, me, np)
|
|
|
|
|
|
|
|
|
|
trans_ = toupper(trans)
|
|
|
|
|
|
|
|
|
|
select case(prec%iprcparm(mld_prec_type_))
|
|
|
|
|
|
|
|
|
@ -115,7 +117,7 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
!
|
|
|
|
|
! shortcut: this fixes performance for RAS(0) == BJA
|
|
|
|
|
!
|
|
|
|
|
call mld_bjac_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
call mld_bjac_aply(alpha,prec,x,beta,y,desc_data,trans_,work,info)
|
|
|
|
|
if(info /= 0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_bjacaply'
|
|
|
|
@ -124,10 +126,6 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
|
|
!
|
|
|
|
|
! Note: currently trans is unused
|
|
|
|
|
!
|
|
|
|
|
|
|
|
|
|
n_row = psb_cd_get_local_rows(prec%desc_data)
|
|
|
|
|
n_col = psb_cd_get_local_cols(prec%desc_data)
|
|
|
|
|
nrow_d = psb_cd_get_local_rows(desc_data)
|
|
|
|
@ -169,9 +167,8 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
tx(1:nrow_d) = x(1:nrow_d)
|
|
|
|
|
tx(nrow_d+1:isz) = dzero
|
|
|
|
|
|
|
|
|
|
select case(toupper(trans))
|
|
|
|
|
select case(trans_)
|
|
|
|
|
case('N')
|
|
|
|
|
|
|
|
|
|
!
|
|
|
|
|
! Get the overlap entries of tx (tx==x)
|
|
|
|
|
!
|
|
|
|
@ -205,7 +202,7 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
! block-Jacobi solver can be applied at the coarsest level of a multilevel
|
|
|
|
|
! preconditioner). The resulting vector is ty.
|
|
|
|
|
!
|
|
|
|
|
call mld_bjac_aply(done,prec,tx,dzero,ty,prec%desc_data,toupper(trans),aux,info)
|
|
|
|
|
call mld_bjac_aply(done,prec,tx,dzero,ty,prec%desc_data,trans_,aux,info)
|
|
|
|
|
if(info /= 0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='mld_bjac_aply'
|
|
|
|
@ -252,7 +249,6 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
|
|
|
|
|
case('T','C')
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
!
|
|
|
|
|
! With transpose, we have to do it here
|
|
|
|
|
!
|
|
|
|
@ -318,7 +314,7 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
! block-Jacobi solver can be applied at the coarsest level of a multilevel
|
|
|
|
|
! preconditioner). The resulting vector is ty.
|
|
|
|
|
!
|
|
|
|
|
call mld_bjac_aply(done,prec,tx,dzero,ty,prec%desc_data,toupper(trans),aux,info)
|
|
|
|
|
call mld_bjac_aply(done,prec,tx,dzero,ty,prec%desc_data,trans_,aux,info)
|
|
|
|
|
if(info /= 0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='mld_bjac_aply'
|
|
|
|
@ -360,8 +356,6 @@ subroutine mld_das_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
goto 9999
|
|
|
|
|
end select
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
!
|
|
|
|
|
! Compute y = beta*y + alpha*ty (ty==K^(-1)*tx)
|
|
|
|
|
!
|
|
|
|
|