diff --git a/bin/sheep.py b/bin/sheep.py
index 82ff33c..3b92307 100644
--- a/bin/sheep.py
+++ b/bin/sheep.py
@@ -13,12 +13,12 @@ import numpy as np
 
 import interp.bootstrap
 from   interp.grid.gmsh import ggrid
-from   interp.tools import baker_exact_3D as exact
+from   interp.tools import *
 
 from interp.cluster import QueueManager, get_qs
 
 if __name__ == '__main__':
-  parser = OptionParser(usage = "usage: %s [options] <server> <gmsh file>")
+  parser = OptionParser(usage = "usage: %s [options] <server> <gmsh file> <dimension> <baker|friendly>")
 
   parser.add_option("-v", "--verbose",
     action="store_true", dest="verbose", default=False,
@@ -30,11 +30,22 @@ if __name__ == '__main__':
 
   (options, args) = parser.parse_args()
 
-  if len(args) != 2:
+  if len(args) != 4:
     parser.print_usage()
     sys.exit(1)
 
-  server, input_file = args
+  server, input_file, dimension, exact_type = args
+  dimension = int(dimension)
+
+  if   dimension == 2 and exact_type == 'baker':
+    exact = baker_exact_2D
+  elif dimension == 2 and exact_type == 'friendly':
+    exact = friendly_exact_2D
+  elif dimension == 3 and exact_type == 'baker':
+    exact = baker_exact_3D
+  elif dimension == 3 and exact_type == 'friendly':
+    exact = friendly_exact_3D
+
 
   myname = "%s-%d" % (os.uname()[1], os.getpid())
   if options.verbose:
@@ -48,7 +59,7 @@ if __name__ == '__main__':
 
   if options.verbose:
     print "%s: starting parse input file" % myname
-  g   = ggrid(input_file)
+  g   = ggrid(input_file, dimension)
   g.q = np.array([exact(x) for x in g.verts])
   if options.verbose:
     print "%s: done parsing input file" % myname
@@ -63,7 +74,7 @@ if __name__ == '__main__':
       print "%s: waiting for master to tell me to start" % myname
     action = minionsq.get()
     if options.verbose:
-      print "%s: master said go!!" % myname
+      print "%s: got message from master: %s" % (myname, action)
 
     if action in ('teardown', 'slay'):
       break
@@ -85,10 +96,9 @@ if __name__ == '__main__':
         cur_error = 0.0
         cur_final = 0.0
         cur_exact = 0.0
-        duration  =  0
+        duration  = 0
 
-      resultsq.put((
-          i,
+      resultsq.put((i,
           cur_qlin,
           cur_error,
           cur_final,