C    Copyright (c) 2005-2017 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    Redistribution and use in source and binary forms, with or without
C    modification, are permitted provided that the following conditions are
C    met:
C
C        * Redistributions of source code must retain the above copyright
C          notice, this list of conditions and the following disclaimer.
C
C        * Redistributions in binary form must reproduce the above
C          copyright notice, this list of conditions and the following
C          disclaimer in the documentation and/or other materials provided
C          with the distribution.
C
C        * Neither the name of NTESS nor the names of its
C          contributors may be used to endorse or promote products derived
C          from this software without specific prior written permission.
C
C    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
C    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
C    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
C    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
C    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
C    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
C    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
C    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
C    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
C    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
C    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
C

      program testrd

c
c This is a test program for the Fortran binding of the EXODUS II
c database read routines
c
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(5), connect(10), node_list(100)
      integer elem_list(100), side_list(100), ids(10)
      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(3,5)
      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, mod_sz
      integer num_props, prop_value
      integer mxalnmlen, mxusnmlen

      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*(MXSTLN) name
      character*(MXSTLN) blk_names(5)
      character*(MXSTLN) nset_names(2)
      character*(MXSTLN) sset_names(5)
      character*(MXLNLN) inform(3), titl
      character typ*(MXSTLN)
      character*(MXSTLN) prop_names(3)
      character*(MXSTLN) attrib_names(100)

      data iin /5/, iout /6/


c
c open EXODUS II files
c

      cpu_ws = 0
      io_ws = 0

      exoid = excre("test.exo", EXNOCL, cpu_ws, io_ws, ierr)

      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

      mod_sz = exlgmd(exoid)
      write (iout, '("  Model Size",i2)') mod_sz

      num_props = exinqi (exoid, EXNEBP)
      mxalnmlen = exinqi (exoid, EXDBMXALNM)
      mxusnmlen = exinqi (exoid, EXDBMXUSNM)
      write (iout, '("  Maximum Allowed/Used DB Name Size ",i4,i4)')
     *  mxalnmlen, mxusnmlen

c
c read database parameters
c

      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
c read nodal coordinates values and names from database
c

      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
c read element order map
c

      call exgmap (exoid, elem_map, ierr)
      write (iout, '(/"after exgmap, error = ", i3)' ) ierr

      do 30 i = 1, num_elem
        write (iout, '("elem_map(",i1,") = ", i1)') i, elem_map(i)
 30   continue

c
c read element block parameters
c
c
      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

        call exgnam (exoid, EXEBLK, ids(i), name, ierr)
        write (iout, '("element block id = ", i2,/
     1    "element type = ", a9,/
     *    "block name = ", a32,/
     2    "num_elem_in_block = ", i2,/
     3    "num_nodes_per_elem = ", i2,/
     4    "num_attr = ", i2)')
     5    ids(i), typ, name,
     *    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
c read element connectivity
c

      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
c read element block names
c
      call exgnams(exoid, EXEBLK, num_elem_blk, blk_names, ierr)
      write (iout, '(/"after exgnams, error = ", i3)' ) ierr
      do i=1, num_elem_blk
        write (iout, '("element block ",i2," name: ",a)' )
     2    i, blk_names(i)
      end do

c
c read element block attributes
c

      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):")')
     *    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
c read individual node sets
c
      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
c read node set names
c
      call exgnams(exoid, EXNSET, num_node_sets, nset_names, ierr)
      write (iout, '(/"after exgnams, error = ", i3)' ) ierr
      do i=1, num_node_sets
        write (iout, '("node set ",i2," name: ",a)' )
     2    i, nset_names(i)
      end do


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
c read concatenated node sets; this produces the same information as
c the above code which reads individual node sets
c
      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
c read individual side sets
c
      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
c read side set names
c
      call exgnams(exoid, EXSSET, num_side_sets, sset_names, ierr)
      write (iout, '(/"after exgnams, error = ", i3)' ) ierr
      do i=1, num_side_sets
        write (iout, '("side set ",i2," name: ",a)' )
     2    i, sset_names(i)
      end do

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
c read concatenated side sets; this produces the same information as
c the above code which reads individual side sets
c
        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
c read QA records
c
      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
c read information records
c
      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
c read global variables parameters and names
c
      call exgvp (exoid, "g", num_glo_vars, ierr)
      write (iout, '(/"after exgvp, error = ", i3)' ) ierr

      call exgvan (exoid, "g", num_glo_vars, var_names, ierr)
      write (iout, '(/"after exgvan, 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
c read nodal variables parameters and names
c
      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
c read element variables parameters and names
c
      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
c read element variable truth table
c
      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
c determine how many time steps are stored
c
      num_time_steps = exinqi (exoid, EXTIMS)
      write (iout, '("There are ",i2," time steps in the database.")')
     1  num_time_steps
c
c read time value at one time step
c
      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
c read time values at all time steps
c
      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
c read all global variables at one time step
c
      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
c read a single global variable through time
c
      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
c read a nodal variable at one time step
c
      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
c read a nodal variable through time
c
      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
c read an element variable at one time step
c
      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, '(f5.3)') var_values(j)
440      continue

450   continue

c
c read an element variable through time
c
      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

