Program f01lhfe ! F01LHF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: f01lhf, f04lhf, nag_wp, x04caf ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: lena = 200, nin = 5, nout = 6 ! .. Local Scalars .. Real (Kind=nag_wp) :: tol Integer :: i, ifail, ir, j, k, kpivot, ldb, n, & nbasek, nbloks ! .. Local Arrays .. Real (Kind=nag_wp), Allocatable :: a(:), b(:,:) Integer, Allocatable :: blkstr(:,:), pivot(:) ! .. Executable Statements .. Write (nout,*) 'F01LHF Example Program Results' Write (nout,*) Flush (nout) ! Skip heading in data file Read (nin,*) Read (nin,*) nbloks Allocate (a(lena),blkstr(3,nbloks)) nbasek = 0 n = 0 Do i = 1, nbloks Read (nin,*) blkstr(1:3,i) If (nbasek+blkstr(2,i)*blkstr(1,i)>lena) Then Write (nout,*) ' Array A is too small for this problem' Go To 100 Else Do k = 1, blkstr(1,i) Read (nin,*)(a(nbasek+(j-1)*blkstr(1,i)+k),j=1,blkstr(2,i)) End Do End If nbasek = nbasek + blkstr(2,i)*blkstr(1,i) n = n + blkstr(1,i) End Do ldb = n Read (nin,*) ir Allocate (b(ldb,ir),pivot(n)) tol = 0.0E0_nag_wp ! ifail: behaviour on error exit ! =0 for hard exit, =1 for quiet-soft, =-1 for noisy-soft ifail = 0 Call f01lhf(n,nbloks,blkstr,a,lena,pivot,tol,kpivot,ifail) Read (nin,*)(b(1:n,j),j=1,ir) ifail = 0 Call f04lhf('N',n,nbloks,blkstr,a,lena,pivot,b,ldb,ir,ifail) Call x04caf('G','X',n,ir,b,ldb,'Component Solution',ifail) 100 Continue End Program f01lhfe