/exodus_for/test/testrd1.f

C    Copyright(C) 1999-2020 National Technology & Engineering Solutions
C    of Sandia, LLC (NTESS).  Under the terms of Contract DE-NA0003525 with
C    NTESS, the U.S. Government retains certain rights in this software.
C
C    See packages/seacas/LICENSE for details
 
      program testrd1
 
c This is a test program for the Fortran binding of the EXODUS II
c database read routines
 
c       09/07/93 V.R. Yarberry - Modified for API 2.00
      implicit none
 
      include 'exodusII.inc'
 
      integer iin, iout, ierr
      integer exoid, num_dim, num_nodes, num_elem, num_elem_blk
      integer num_node_sets
      integer num_side_sets
      integer i, j, k, elem_map(10), connect(10), node_list(100)
      integer elem_list(100), side_list(100), ids(10), node_map(100)
      integer num_elem_per_set(10), num_nodes_per_set(10)
      integer num_df_per_set(10)
      integer num_df_in_set, num_sides_in_set
      integer df_ind(10),node_ind(10),elem_ind(10),num_qa_rec,num_info
      integer num_glo_vars, num_nod_vars, num_ele_vars
      integer truth_tab(3,7)
      integer num_time_steps
      integer num_elem_in_block(10), num_nodes_per_elem(10)
      integer num_attr(10), node_ctr_list(10), node_ctr
      integer num_nodes_in_set, num_elem_in_set
      integer df_list_len, list_len, elem_list_len, node_list_len
      integer node_num, time_step, var_index, beg_time, end_time
      integer elem_num
      integer cpu_ws,io_ws
      integer num_props, prop_value, n_node_map, n_elem_map
      integer ival
 
      real time_value, time_values(100), var_values(100)
      real x(100), y(100), z(100)
      real attrib(100), dist_fact(100)
      real vers
 
      character*(MXSTLN) coord_names(3), qa_record(4,2), var_names(3)
      character*(MXLNLN) inform(3), titl
      character typ*(MXSTLN)
      character*(MXSTLN) prop_names(3)
      character*(MXSTLN) attrib_names(100)
      data iin /5/, iout /6/
 
c      call exopts (EXVRBS, ierr)
c      write (iout, '(/"after exopts, error = ", i3)' ) ierr
 
c open EXODUS II files
 
      cpu_ws = 0
      io_ws = 0
 
      exoid = exopen("test.exo", exread, cpu_ws, io_ws, vers, ierr)
      write (iout, '(/"after exopen, error = ",i3)')
     1                  ierr
 
      write (iout, '("test.exo is an EXODUSII file; version ",
     1                f4.2)') vers
      write (iout, '("  I/O word size",i2)') io_ws
 
c read database parameters
 
      call exgini (exoid, titl, num_dim, num_nodes, num_elem,
     1             num_elem_blk, num_node_sets, num_side_sets, ierr)
      write (iout, '(/"after exgini, error = ", i3)' ) ierr
 
      write (iout, '("database parameters:"/
     1               "title = ", a81 /
     2               "num_dim = ", i3 /
     3               "num_nodes = ", i3 /
     4               "num_elem = ", i3 /
     5               "num_elem_blk = ", i3 /
     6               "num_node_sets = ", i3 /
     7               "num_side_sets = ", i3)')
     8               titl,num_dim, num_nodes, num_elem,
     9               num_elem_blk,num_node_sets, num_side_sets
 
c read nodal coordinates values and names from database
 
      call exgcor (exoid, x, y, z, ierr)
      write (iout, '(/"after exgcor, error = ", i3)' ) ierr
 
      write (iout, '("x coords = ")')
      do 10 i = 1, num_nodes
         write (iout, '(f5.1)') x(i)
10    continue
 
      write (iout, '("y coords = ")')
      do 20 i = 1, num_nodes
         write (iout, '(f5.1)') y(i)
20    continue
 
      if (num_dim .gt. 2) then
      write (iout, '("z coords = ")')
      do 22 i = 1, num_nodes
         write (iout, '(f5.1)') z(i)
22    continue
      endif
 
      call exgcon (exoid, coord_names, ierr)
      write (iout, '(/"after exgcon, error = ", i3)' ) ierr
 
      write (iout, '("x coord name = ", a9)') coord_names(1)
      write (iout, '("y coord name = ", a9)') coord_names(2)
 
c read map parameters
 
      call exgmp (exoid, n_node_map, n_elem_map, ierr)
      write (iout, '(/"after exgmp, error = ", i3)' ) ierr
 
c read element maps
 
      call exgpa (exoid, exemap, "ID", ids, ierr)
      write (iout, '(/"after exgpa, error = ", i3)' ) ierr
 
      do 26 j = 1,n_elem_map
 
         call exgem (exoid, ids(j), elem_map, ierr)
         write (iout, '(/"after exgem, error = ", i3)' ) ierr
 
         write (iout, '(/"element map id = ", i3)' ) ids(j)
 
         do 24 i = 1, num_elem
            write (iout, '("elem_map(",i3,") = ", i3)') i, elem_map(i)
C .. test reading partial element maps...
            call exgpem(exoid, ids(j), i, 1, ival, ierr)
            if (ival .ne. elem_map(i)) then
              write (iout, '("bad value found for map ",
     *          " element ", i3)') i, elem_map(i)
            end if
24       continue
 
26    continue
 
c     read element map properties
 
      num_props = exinqi(exoid, exnemp)
      write (iout,
     1  '(/"There are ",i2," properties for each element map")')
     2  num_props
 
      call exgpn(exoid, exemap, prop_names, ierr)
      write (iout, '("after exgpn, error = ", i3)' ) ierr
 
      do 30 i = 1, num_props
        do 28 j = 1, n_elem_map
          call exgp(exoid, exemap,ids(j),prop_names(i),prop_value,ierr)
          if (ierr .eq. 0) then
            write( iout,
     1        '("elem map ",i2," property(",i2,"): ",a," = ",i5)' )
     2        j, i, prop_names(i), prop_value
          else
            write (iout, '(/"after exgp, error = ", i3)' ) ierr
          endif
28      continue
30    continue
 
c read node maps
 
      call exgpa (exoid, exnmap, "ID", ids, ierr)
      write (iout, '(/"after exgpa, error = ", i3)' ) ierr
 
      do 34 j = 1,n_node_map
 
         call exgnm (exoid, ids(j), node_map, ierr)
         write (iout, '(/"after exgnm, error = ", i3)' ) ierr
 
         write (iout, '(/"node map id = ", i3)' ) ids(j)
 
         do 32 i = 1, num_nodes
            write (iout, '("node_map(",i3,") = ", i3)') i, node_map(i)
32       continue
 
34    continue
 
c     read node map properties
 
      num_props = exinqi(exoid, exnnmp)
      write (iout,
     1  '(/"There are ",i2," properties for each node map")')
     2  num_props
 
      call exgpn(exoid, exnmap, prop_names, ierr)
      write (iout, '("after exgpn, error = ", i3)' ) ierr
 
      do 38 i = 1, num_props
        do 36 j = 1, n_node_map
          call exgp(exoid, exnmap,ids(j),prop_names(i),prop_value,ierr)
          if (ierr .eq. 0) then
            write( iout,
     1        '("node map ",i2," property(",i2,"): ",a," = ",i5)' )
     2        j, i, prop_names(i), prop_value
          else
            write (iout, '(/"after exgp, error = ", i3)' ) ierr
          endif
36      continue
38    continue
 
c read element block parameters
 
      call exgebi (exoid, ids, ierr)
      write (iout, '(/"after exgebi, error = ", i3)' ) ierr
 
      do 40 i = 1, num_elem_blk
 
         call exgelb (exoid, ids(i), typ, num_elem_in_block(i),
     1                num_nodes_per_elem(i), num_attr(i), ierr)
         write (iout, '(/"after exgelb, error = ", i3)' ) ierr
 
         write (iout, '("element block id = ", i2,/
     1                  "element type = ", a9,/
     2                  "num_elem_in_block = ", i2,/
     3                  "num_nodes_per_elem = ", i2,/
     4                  "num_attr = ", i2)')
     5                  ids(i), typ, num_elem_in_block(i),
     6                  num_nodes_per_elem(i), num_attr(i)
 
40    continue
 
c     read element block properties
 
      num_props = exinqi(exoid, exnebp)
      write (iout,
     1  '(/"There are ",i2," properties for each element block")')
     2  num_props
 
      call exgpn(exoid, exeblk, prop_names, ierr)
      write (iout, '("after exgpn, error = ", i3)' ) ierr
 
      do 47 i = 1, num_props
        do 45 j = 1, num_elem_blk
          call exgp(exoid, exeblk,ids(j),prop_names(i),prop_value,ierr)
          if (ierr .eq. 0) then
            write( iout,
     1        '("elem block ",i2," property(",i2,"): ",a," = ",i5)' )
     2        j, i, prop_names(i), prop_value
          else
            write (iout, '(/"after exgp, error = ", i3)' ) ierr
          endif
45      continue
47    continue
 
c read element connectivity
 
      do 60 i = 1, num_elem_blk
 
         call exgelc (exoid, ids(i), connect, ierr)
         write (iout, '(/"after exgelc, error = ", i3)' ) ierr
 
         write (iout, '("connect array for elem block ", i2)') ids(i)
 
         do 50 j = 1, num_nodes_per_elem(i)
            write (iout, '(i3)') connect(j)
50       continue
 
60    continue
 
c read element block attributes
 
      do 70 i = 1, num_elem_blk
 
         call exgeat (exoid, ids(i), attrib, ierr)
         write (iout, '(/"after exgeat, error = ", i3)' ) ierr
 
         call exgean (exoid, ids(i), num_attr(i), attrib_names, ierr)
         write (iout, '(/"after exgean, error = ", i3)' ) ierr
 
         write (iout,
     *     '("element block ", i2, " has ",i2," attribute(s) and ",
     *     i2, " element(s):")')
     1          ids(i), num_attr(i), num_elem_in_block(i)
         do j=1, num_attr(i)
           write (iout, 69) attrib_names(j),
     *       (attrib(k),k= j, num_attr(i)*num_elem_in_block(i),
     *       num_attr(i))
         end do
 69      format(a32," = ", 10(f6.4,2x))
70    continue
 
c read individual node sets
 
      if (num_node_sets .gt. 0) then
         call exgnsi (exoid, ids, ierr)
         write (iout, '(/"after exgnsi, error = ", i3)' ) ierr
      endif
 
      do 100 i = 1, num_node_sets
 
         call exgnp (exoid, ids(i), num_nodes_in_set,
     1               num_df_in_set, ierr)
         write (iout, '(/"after exgnp, error = ", i3)' ) ierr
 
         write (iout, '(/"node set ", i2, " parameters: ",/
     2                  "num_nodes = ", i2)') ids(i), num_nodes_in_set
 
         call exgns (exoid, ids(i), node_list, ierr)
         write (iout, '(/"after exgns, error = ", i3)' ) ierr
 
         if (num_df_in_set .gt. 0) then
           call exgnsd (exoid, ids(i), dist_fact, ierr)
           write (iout, '(/"after exgnsd, error = ", i3)' ) ierr
         endif
 
         write (iout, '(/"node list for node set ", i2)') ids(i)
 
         do 80 j = 1, num_nodes_in_set
            write (iout, '(i3)') node_list(j)
80       continue
 
         if (num_df_in_set .gt. 0) then
           write (iout, '("dist factors for node set ", i2)') ids(i)
           do 90 j = 1, num_nodes_in_set
             write (iout, '(f5.2)') dist_fact(j)
90         continue
         else
           write (iout, '("no dist factors for node set ", i2)') ids(i)
         endif
 
100   continue
 
c     read node set properties
 
      num_props = exinqi(exoid, exnnsp)
      write (iout,
     1  '(/"There are ",i2," properties for each node set")')
     2  num_props
 
      call exgpn(exoid, exnset, prop_names, ierr)
      write (iout, '("after exgpn, error = ", i3)' ) ierr
 
      do 107 i = 1, num_props
        do 105 j = 1, num_node_sets
          call exgp(exoid,exnset,ids(j),prop_names(i),prop_value,ierr)
          if (ierr .eq. 0) then
            write( iout,
     1        '("node set ",i2," property(",i2,"): ",a," = ",i5)' )
     2        j, i, prop_names(i), prop_value
          else
            write (iout, '(/"after exgp, error = ", i3)' ) ierr
          endif
105      continue
107    continue
 
c read concatenated node sets; this produces the same information as
c the above code which reads individual node sets
 
      num_node_sets = exinqi(exoid, exnods)
      if (num_node_sets .gt. 0) then
         list_len = exinqi(exoid, exnsnl)
         write(iout,'(/"after EXNSNL =",i3," exinq, error = ",i3)')
     1                  list_len,ierr
 
         list_len = exinqi(exoid, exnsdf)
         write(iout,'(/"after EXNSDF =",i3," exinq, error = ",i3)')
     1                  list_len,ierr
 
         call exgcns (exoid, ids, num_nodes_per_set, num_df_per_set,
     1                node_ind, df_ind, node_list, dist_fact, ierr)
         write (iout, '(/"after exgcns, error = ", i3)' ) ierr
 
         write (iout, '(/"concatenated node set info")')
 
         write (iout, '("ids = ")')
 
         do 110 i = 1, num_node_sets
            write (iout, '(i3)') ids(i)
110      continue
 
         write (iout, '("num_nodes_per_set = ")')
 
         do 120 i = 1, num_node_sets
            write (iout, '(i3)') num_nodes_per_set(i)
120      continue
 
         write (iout, '("node_ind = ")')
 
         do 130 i = 1, num_node_sets
            write (iout, '(i3)') node_ind(i)
130      continue
 
         write (iout, '("node_list = ")')
 
         do 140 i = 1, list_len
            write (iout, '(i3)') node_list(i)
140      continue
 
         write (iout, '("dist_fact = ")')
 
         do 150 i = 1, list_len
            write (iout, '(f5.3)') dist_fact(i)
150      continue
      endif
 
c read individual side sets
 
      if (num_side_sets .gt. 0) then
         call exgssi (exoid, ids, ierr)
         write (iout, '(/"after exgssi, error = ", i3)' ) ierr
      endif
 
      do 190 i = 1, num_side_sets
 
         call exgsp (exoid, ids(i), num_sides_in_set, num_df_in_set,
     1               ierr)
         write (iout, '(/"after exgsp, error = ", i3)' ) ierr
 
         write (iout, '("side set ", i2, " parameters:",/
     2          "num_sides = ", i3,/
     3          "num_dist_factors = ", i3)')
     4          ids(i), num_sides_in_set, num_df_in_set
 
         call exgss (exoid, ids(i), elem_list, side_list, ierr)
         write (iout, '(/"after exgss, error = ", i3)' ) ierr
 
         call exgssn (exoid, ids(i), node_ctr_list, node_list, ierr)
         write (iout, '(/"after exgssn, error = ", i3)' ) ierr
 
         if (num_df_in_set .gt. 0) then
           call exgssd (exoid, ids(i), dist_fact, ierr)
           write (iout, '(/"after exgssd, error = ", i3)' ) ierr
         endif
 
         write (iout, '(/"element list for side set ", i2)') ids(i)
 
         num_elem_in_set = num_sides_in_set
         do 160 j = 1, num_elem_in_set
            write (iout, '(i3)') elem_list(j)
160      continue
 
         write (iout, '("side list for side set ", i2)') ids(i)
 
         do 170 j = 1, num_sides_in_set
            write (iout, '(i3)') side_list(j)
170      continue
 
         node_ctr = 0
         write (iout, '("node list for side set ", i2)') ids(i)
         do 178 k=1, num_elem_in_set
           do 175 j=1, node_ctr_list(k)
             write (iout, '(i3)') node_list(j+node_ctr)
175        continue
           node_ctr = node_ctr+node_ctr_list(k)
178      continue
 
         if (num_df_in_set .gt. 0) then
           write (iout, '("dist factors for side set ", i2)') ids(i)
           do 180 j = 1, num_df_in_set
             write (iout, '(f6.3)') dist_fact(j)
180        continue
         else
           write (iout, '("no dist factors for side set ", i2)') ids(i)
         endif
 
190   continue
 
c     read side set properties
 
      num_props = exinqi(exoid, exnssp)
      write (iout,
     1  '(/"There are ",i2," properties for each side set")')
     2  num_props
 
      call exgpn(exoid, exsset, prop_names, ierr)
      write (iout, '("after exgpn, error = ", i3)' ) ierr
 
      do 197 i = 1, num_props
        do 195 j = 1, num_side_sets
          call exgp(exoid, exsset,ids(j),prop_names(i),prop_value,ierr)
          if (ierr .eq. 0) then
            write( iout,
     1        '("side set ",i2," property(",i2,"): ",a," = ",i5)' )
     2        j, i, prop_names(i), prop_value
          else
            write (iout, '(/"after exgp, error = ", i3)' ) ierr
          endif
195      continue
197    continue
 
      num_side_sets = exinqi(exoid, exsids)
      write (iout, '(/"after exinq: EXSIDS =",i3,", error = ",i3)')
     1          num_side_sets,ierr
 
      if (num_side_sets .gt. 0) then
         elem_list_len = exinqi(exoid, exssel)
         write (iout, '(/"after exinq: EXSSEL =",i3,", error = ",i3)')
     1          elem_list_len,ierr
 
         node_list_len = exinqi(exoid, exssnl)
         write (iout, '(/"after exinq: EXSSNL =",i3,", error = ",i3)')
     1          node_list_len,ierr
 
         df_list_len = exinqi(exoid, exssdf)
         write (iout, '(/"after exinq: EXSSDF =",i3,", error = ",i3)')
     1          df_list_len,ierr
 
c read concatenated side sets; this produces the same information as
c the above code which reads individual side sets
 
         call exgcss (exoid, ids, num_elem_per_set, num_df_per_set,
     1             elem_ind, df_ind, elem_list, side_list, dist_fact,
     2             ierr)
         write (iout, '(/"after exgcss, error = ", i3)' ) ierr
 
         write (iout, '("concatenated side set info")')
 
         write (iout, '("ids = ")')
 
         do 200 i = 1, num_side_sets
            write (iout, '(i3)') ids(i)
200      continue
 
         write (iout, '("num_elem_per_set = ")')
 
         do 210 i = 1, num_side_sets
            write (iout, '(i3)') num_elem_per_set(i)
210      continue
 
         write (iout, '("num_df_per_set = ")')
 
         do 220 i = 1, num_side_sets
            write (iout, '(i3)') num_df_per_set(i)
220      continue
 
         write (iout, '("elem_ind = ")')
 
         do 230 i = 1, num_side_sets
            write (iout, '(i3)') elem_ind(i)
230      continue
 
         write (iout, '("df_ind = ")')
 
         do 240 i = 1, num_side_sets
            write (iout, '(i3)') df_ind(i)
240      continue
 
         write (iout, '("elem_list = ")')
 
         do 250 i = 1, elem_list_len
            write (iout, '(i3)') elem_list(i)
250      continue
 
         write (iout, '("side_list = ")')
 
         do 260 i = 1, elem_list_len
            write (iout, '(i3)') side_list(i)
260      continue
 
         write (iout, '("dist_fact = ")')
 
         do 270 i = 1, df_list_len
            write (iout, '(f6.3)') dist_fact(i)
270      continue
      endif
 
c read QA records
 
      num_qa_rec = exinqi(exoid, exqa)
      call exgqa (exoid, qa_record, ierr)
      write (iout, '(/"after exgqa, error = ", i3)' ) ierr
 
      write (iout, '("QA records = ")')
 
      do 290 i = 1, num_qa_rec
         do 280 j = 1, 4
            write (iout, '(a)') qa_record(j,i)
280      continue
290   continue
 
c read information records
 
      num_info = exinqi(exoid, exinfo)
      call exginf (exoid, inform, ierr)
      write (iout, '(/"after exginf, error = ", i3)' ) ierr
 
      write (iout, '("info records = ")')
 
      do 300 i = 1, num_info
         write (iout, '(a81)') inform(i)
300   continue
 
c read global variables parameters and names
 
      call exgvp (exoid, "g", num_glo_vars, ierr)
      write (iout, '(/"after exgvp, error = ", i3)' ) ierr
 
      call exgvnm (exoid, "g", 1, var_names(1), ierr)
      write (iout, '(/"after exgvnm, error = ", i3)' ) ierr
 
      write (iout, '("There are ",i2," global variables; their names ",
     1                "are :")')  num_glo_vars
 
      do 320 i = 1, num_glo_vars
         write (iout, '(a9)') var_names(i)
320   continue
 
c read nodal variables parameters and names
 
      call exgvp (exoid, "n", num_nod_vars, ierr)
      write (iout, '(/"after exgvp, error = ", i3)' ) ierr
 
      call exgvan (exoid, "n", num_nod_vars, var_names, ierr)
      write (iout, '(/"after exgvan, error = ", i3)' ) ierr
 
      write (iout, '("There are ",i2," nodal variables; their names ",
     1                "are :")')  num_nod_vars
 
      do 330 i = 1, num_nod_vars
         write (iout, '(a9)') var_names(i)
330   continue
 
c read element variables parameters and names
 
      call exgvp (exoid, "e", num_ele_vars, ierr)
      write (iout, '(/"after exgvp, error = ", i3)' ) ierr
 
      call exgvan (exoid, "e", num_ele_vars, var_names, ierr)
      write (iout, '(/"after exgvan, error = ", i3)' ) ierr
 
      write (iout, '("There are ",i2," element variables; their names ",
     1                "are :")')  num_ele_vars
 
      do 340 i = 1, num_ele_vars
         write (iout, '(a9)') var_names(i)
340   continue
 
c read element variable truth table
 
      call exgvtt (exoid, num_elem_blk, num_ele_vars, truth_tab, ierr)
      write (iout, '(/"after exgvtt, error = ", i3)' ) ierr
 
      write (iout, '("This is the element variable truth table:")')
 
      do 360 i = 1, num_elem_blk
         do 350 j = 1, num_ele_vars
            write (iout, '(i2)') truth_tab(j,i)
350      continue
360   continue
 
c determine how many time steps are stored
 
      num_time_steps = exinqi(exoid, extims)
      write (iout, '("There are ",i2," time steps in the database.")')
     1       num_time_steps
 
c read time value at one time step
 
      time_step = 3
      call exgtim (exoid, time_step, time_value, ierr)
      write (iout, '(/"after exgtim, error = ", i3)' ) ierr
 
      write (iout, '("time value at time step ",i2," = ", f5.3)')
     1       time_step, time_value
 
c read time values at all time steps
 
      call exgatm (exoid, time_values, ierr)
      write (iout, '(/"after exgatm, error = ", i3)' ) ierr
 
      write (iout, '("time values at all time steps are:")')
 
      do 370 i = 1, num_time_steps
         write (iout, '(f5.3)') time_values(i)
370   continue
 
      var_index = 1
      beg_time = 1
      end_time = -1
 
c read all global variables at one time step
 
      call exggv (exoid, time_step, num_glo_vars, var_values, ierr)
      write (iout, '(/"after exggv, error = ", i3)' ) ierr
 
      write (iout, '("global variable values at time step ",i2)')
     1       time_step
 
      do 400 i = 1, num_glo_vars
         write (iout, '(f5.3)') var_values(i)
400   continue
 
c read a single global variable through time
 
      call exggvt (exoid, var_index, beg_time, end_time, var_values,
     1             ierr)
      write (iout, '(/"after exggvt, error = ", i3)' ) ierr
 
      write (iout, '("global variable ",i2," values through time:")')
     1       var_index
 
      do 410 i = 1, num_time_steps
         write (iout, '(f5.3)') var_values(i)
410   continue
 
c read a nodal variable at one time step
 
      call exgnv (exoid, time_step, var_index, num_nodes, var_values,
     1            ierr)
      write (iout, '(/"after exgnv, error = ", i3)' ) ierr
 
      write (iout, '("nodal variable ",i2," values at time step ",i2)')
     1       var_index, time_step
 
      do 420 i = 1, num_nodes
         write (iout, '(f5.3)') var_values(i)
420   continue
 
c read a nodal variable through time
 
      node_num = 1
 
      call exgnvt (exoid, var_index, node_num, beg_time, end_time,
     1             var_values, ierr)
      write (iout, '(/"after exgnvt, error = ", i3)' ) ierr
 
      write (iout, '("nodal variable ",i2," values for node ",i2,
     1               " through time:")') var_index, node_num
 
      do 430 i = 1, num_time_steps
         write (iout, '(f5.3)') var_values(i)
430   continue
 
c read an element variable at one time step
 
      call exgebi (exoid, ids, ierr)
      write (iout, '(/"after exgebi, error = ", i3)' ) ierr
 
      do 450 i = 1, num_elem_blk
 
         call exgev (exoid, time_step, var_index, ids(i),
     1               num_elem_in_block(i), var_values, ierr)
         write (iout, '(/"after exgev, error = ", i3)' ) ierr
 
         if (ierr .eq. 0) then
            write (iout, '("element variable ",i2," values of element ",
     1                     "block ",i2," at time step ",i2)')
     2                     var_index, ids(i), time_step
         endif
 
         do 440 j = 1, num_elem_in_block(i)
            write (iout, '(f6.3)') var_values(j)
440      continue
 
450   continue
 
c read an element variable through time
 
      var_index = 2
      elem_num = 2
 
      call exgevt (exoid, var_index, elem_num, beg_time, end_time,
     1             var_values, ierr)
      write (iout, '(/"after exgevt, error = ", i3)' ) ierr
 
      write (iout, '("element variable ",i2," values for element ",i2,
     1               " through time:")') var_index, elem_num
 
      do 460 i = 1, num_time_steps
         write (iout, '(f5.3)') var_values(i)
460   continue
 
      call exclos (exoid, ierr)
      write (iout, '(/"after exclos, error = ", i3)' ) ierr
 
      stop
      end