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107 lines
2.8 KiB
Fortran
107 lines
2.8 KiB
Fortran
7 years ago
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module psb_ckrylov_cbind_mod
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use psb_base_krylov_cbind_mod
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contains
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function psb_c_ckrylov(methd,&
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& ah,ph,bh,xh,cdh,options) bind(c) result(res)
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use psb_base_mod
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use psb_prec_mod
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use psb_krylov_mod
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use psb_objhandle_mod
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use psb_prec_cbind_mod
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use psb_base_string_cbind_mod
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implicit none
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integer(c_int) :: res
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type(psb_c_cspmat) :: ah
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type(psb_c_descriptor) :: cdh
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type(psb_c_cprec) :: ph
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type(psb_c_cvector) :: bh,xh
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character(c_char) :: methd(*)
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type(solveroptions) :: options
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res= psb_c_ckrylov_opt(methd, ah, ph, bh, xh, options%eps,cdh, &
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& itmax=options%itmax, iter=options%iter,&
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& itrace=options%itrace, istop=options%istop,&
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& irst=options%irst, err=options%err)
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end function psb_c_ckrylov
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function psb_c_ckrylov_opt(methd,&
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& ah,ph,bh,xh,eps,cdh,itmax,iter,err,itrace,irst,istop) bind(c) result(res)
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use psb_base_mod
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use psb_prec_mod
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use psb_krylov_mod
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use psb_objhandle_mod
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use psb_prec_cbind_mod
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use psb_base_string_cbind_mod
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implicit none
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integer(c_int) :: res
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type(psb_c_cspmat) :: ah
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type(psb_c_descriptor) :: cdh
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type(psb_c_cprec) :: ph
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type(psb_c_cvector) :: bh,xh
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integer(c_int), value :: itmax,itrace,irst,istop
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real(c_double), value :: eps
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integer(c_int) :: iter
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real(c_double) :: err
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character(c_char) :: methd(*)
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type(solveroptions) :: options
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type(psb_desc_type), pointer :: descp
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type(psb_cspmat_type), pointer :: ap
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type(psb_cprec_type), pointer :: precp
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type(psb_c_vect_type), pointer :: xp, bp
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integer :: info,fitmax,fitrace,first,fistop,fiter
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character(len=20) :: fmethd
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real(psb_spk_) :: feps,ferr
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res = -1
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if (c_associated(cdh%item)) then
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call c_f_pointer(cdh%item,descp)
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else
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return
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end if
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if (c_associated(xh%item)) then
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call c_f_pointer(xh%item,xp)
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else
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return
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end if
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if (c_associated(bh%item)) then
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call c_f_pointer(bh%item,bp)
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else
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return
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end if
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if (c_associated(ah%item)) then
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call c_f_pointer(ah%item,ap)
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else
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return
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end if
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if (c_associated(ph%item)) then
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call c_f_pointer(ph%item,precp)
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else
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return
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end if
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call stringc2f(methd,fmethd)
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feps = eps
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fitmax = itmax
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fitrace = itrace
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first = irst
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fistop = istop
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call psb_krylov(fmethd, ap, precp, bp, xp, feps, &
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& descp, info,&
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& itmax=fitmax,iter=fiter,itrace=fitrace,istop=fistop,&
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& irst=first, err=ferr)
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iter = fiter
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err = ferr
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res = info
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end function psb_c_ckrylov_opt
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end module psb_ckrylov_cbind_mod
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