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module getp
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public get_parms
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public pr_usage
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contains
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!
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! get iteration parameters from standard input
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!
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subroutine get_parms(icontxt,irst,irnum,ntry,nmat,mtrx,rhs,kmethd,nprecs,precs,ipart,&
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& afmt,istopc,itmax,itrace,eps,outf1,outf2)
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use psb_base_mod
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use precd
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implicit none
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integer :: icontxt
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character(len=20) :: kmethd
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character(len=80) :: outf1, outf2
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character(len=20),allocatable :: mtrx(:), rhs(:)
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type(precdata),allocatable :: precs(:)
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integer :: iret, istopc,itmax,itrace,ipart,nmat,nprecs,irst,irnum,ntry
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character(len=1024) :: charbuf
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real(kind(1.d0)) :: eps, omega,thr1,thr2
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character :: afmt*5, lv1*10, lv2*10, pdescr*40
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integer :: iam, nm, np, i, idx
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integer, parameter :: npparms=14
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integer :: inparms(40), ip, pparms(npparms)
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call psb_info(icontxt,iam,np)
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if (iam==psb_root_) then
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! read input parameters
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read(*,*) outf1
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read(*,*) outf2
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read(*,*) kmethd
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read(*,*) eps
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read(*,*) afmt
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call psb_bcast(icontxt,kmethd)
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call psb_bcast(icontxt,eps,0)
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call psb_bcast(icontxt,afmt)
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read(*,*) ipart
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read(*,*) itmax
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read(*,*) itrace
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read(*,*) istopc
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read(*,*) irst
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read(*,*) irnum
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read(*,*) ntry
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read(*,*) nprecs
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! broadcast parameters to all processors
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inparms(1) = ipart
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inparms(2) = itmax
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inparms(3) = itrace
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inparms(4) = istopc
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inparms(5) = irst
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inparms(6) = irnum
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inparms(7) = ntry
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call psb_bcast(icontxt,inparms(1:7))
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call psb_bcast(icontxt,nprecs)
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allocate(precs(nprecs))
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do np=1,nprecs
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read(*,'(a)')charbuf
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charbuf = adjustl(charbuf)
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idx=index(charbuf," ")
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read(charbuf(1:idx-1),'(a)')lv1
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charbuf=adjustl(charbuf(idx:))
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idx=index(charbuf," ")
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read(charbuf(1:idx-1),'(a)')lv2
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charbuf=adjustl(charbuf(idx:))
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do i=1, npparms
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idx=index(charbuf," ")
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read(charbuf(1:idx),*) pparms(i)
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charbuf=adjustl(charbuf(idx:))
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end do
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idx=index(charbuf," ")
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read(charbuf(1:idx),*) omega
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charbuf=adjustl(charbuf(idx:))
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idx=index(charbuf," ")
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read(charbuf(1:idx),*) thr1
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charbuf=adjustl(charbuf(idx:))
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idx=index(charbuf," ")
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read(charbuf(1:idx),*) thr2
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charbuf=adjustl(charbuf(idx:))
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read(charbuf,'(a)') pdescr
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call psb_bcast(icontxt,pdescr)
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precs(np)%descr=pdescr
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call psb_bcast(icontxt,lv1)
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call psb_bcast(icontxt,lv2)
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call psb_bcast(icontxt,pparms(1:npparms))
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call psb_bcast(icontxt,omega)
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call psb_bcast(icontxt,thr1)
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call psb_bcast(icontxt,thr2)
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precs(np)%lv1 = lv1
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precs(np)%lv2 = lv2
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precs(np)%novr = pparms(1)
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precs(np)%restr = pparms(2)
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precs(np)%prol = pparms(3)
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precs(np)%ftype1 = pparms(4)
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precs(np)%fill1 = pparms(5)
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precs(np)%mltype = pparms(6)
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precs(np)%aggr = pparms(7)
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precs(np)%smthkind = pparms(8)
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precs(np)%cmat = pparms(9)
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precs(np)%smthpos = pparms(10)
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precs(np)%ftype2 = pparms(11)
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precs(np)%fill2 = pparms(12)
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precs(np)%jswp = pparms(13)
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precs(np)%nlev = pparms(14)
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precs(np)%omega = omega
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precs(np)%thr1 = thr1
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precs(np)%thr2 = thr2
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end do
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read(*,*) nmat
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call psb_bcast(icontxt,nmat)
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allocate(mtrx(nmat),rhs(nmat))
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do nm=1, nmat
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read(*,'(a)') charbuf
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charbuf=adjustl(charbuf)
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idx=index(charbuf," ")
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mtrx(nm)=charbuf(1:idx-1)
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rhs(nm)=adjustl(charbuf(idx+1:))
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call psb_bcast(icontxt,mtrx(nm))
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call psb_bcast(icontxt,rhs(nm))
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end do
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else
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! receive parameters
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call psb_bcast(icontxt,kmethd)
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call psb_bcast(icontxt,eps)
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call psb_bcast(icontxt,afmt)
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call psb_bcast(icontxt,inparms(1:7))
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ipart = inparms(1)
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itmax = inparms(2)
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itrace = inparms(3)
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istopc = inparms(4)
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irst = inparms(5)
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irnum = inparms(6)
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ntry = inparms(7)
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call psb_bcast(icontxt,nprecs)
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allocate(precs(nprecs))
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do np=1,nprecs
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call psb_bcast(icontxt,pdescr)
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precs(np)%descr=pdescr
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call psb_bcast(icontxt,lv1)
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call psb_bcast(icontxt,lv2)
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call psb_bcast(icontxt,pparms(1:npparms))
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call psb_bcast(icontxt,omega)
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call psb_bcast(icontxt,thr1)
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call psb_bcast(icontxt,thr2)
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precs(np)%lv1 = lv1
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precs(np)%lv2 = lv2
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precs(np)%novr = pparms(1)
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precs(np)%restr = pparms(2)
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precs(np)%prol = pparms(3)
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precs(np)%ftype1 = pparms(4)
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precs(np)%fill1 = pparms(5)
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precs(np)%mltype = pparms(6)
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precs(np)%aggr = pparms(7)
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precs(np)%smthkind = pparms(8)
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precs(np)%cmat = pparms(9)
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precs(np)%smthpos = pparms(10)
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precs(np)%ftype2 = pparms(11)
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precs(np)%fill2 = pparms(12)
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precs(np)%jswp = pparms(13)
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precs(np)%nlev = pparms(14)
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precs(np)%omega = omega
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precs(np)%thr1 = thr1
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precs(np)%thr2 = thr2
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end do
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call psb_bcast(icontxt,nmat)
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allocate(mtrx(nmat),rhs(nmat))
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do nm=1,nmat
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call psb_bcast(icontxt,mtrx(nm))
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call psb_bcast(icontxt,rhs(nm))
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end do
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end if
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end subroutine get_parms
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subroutine pr_usage(iout)
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integer iout
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write(iout, *) ' number of parameters is incorrect!'
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write(iout, *) ' use: hb_sample mtrx_file methd prec [ptype &
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&itmax istopc itrace]'
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write(iout, *) ' where:'
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write(iout, *) ' mtrx_file is stored in hb format'
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write(iout, *) ' methd may be: cgstab '
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write(iout, *) ' itmax max iterations [500] '
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write(iout, *) ' istopc stopping criterion [1] '
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write(iout, *) ' itrace 0 (no tracing, default) or '
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write(iout, *) ' >= 0 do tracing every itrace'
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write(iout, *) ' iterations '
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write(iout, *) ' prec may be: ilu diagsc none'
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write(iout, *) ' ptype partition strategy default 0'
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write(iout, *) ' 0: block partition '
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end subroutine pr_usage
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end module getp
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