added dgrid bench script, also ignored another couple of directories

.hgignore

@@ -4,3 +4,5 @@
 ^smbinterp.egg-info$
 ^lib$
 ^profiles$
+^meshes$
+^data$

bin/dgrid_bench.py

@@ -0,0 +1,48 @@
+import sys
+import time
+import pickle
+
+import numpy as np
+
+import interp.bootstrap
+from   interp.grid.delaunay import dgrid
+from   interp.tools         import improved_answer, friendly_exact_3D as exact
+
+
+def test_success(rcount, count):
+  v = np.random.random((rcount, 3)) * 10
+  pickle.dump(v, open('/tmp/v.p', 'w'))
+  q = np.array([exact(x) for x in v])
+
+  start = time.time()
+  g = dgrid(v,q)
+  end = time.time()
+
+  print "cells: %d, verts: %d" % (len(g.cells), len(g.verts))
+  print end - start, " seconds to instantiate the dgrid object"
+
+  results = {True:0, False:0}
+  i = 0
+  outside = 0
+  while i < count:
+    try:
+      X = np.random.random((1,3))[0]
+
+      a = g.run_baker(X, order = 3, extra_points = 32)
+      e = exact(X)
+
+      results[improved_answer(a, e)] += 1
+      i += 1
+    except Exception as e:
+      outside += 1
+
+  print "total skipped points: %d" % outside
+  return results
+
+if __name__ == '__main__':
+  if len(sys.argv) != 3:
+    print >> sys.stderr, "usage: %s <number of random points> <number of attempted interps>" % sys.argv[0]
+    sys.exit(1)
+
+  rcount, count = (int(i) for i in sys.argv[1:])
+  print test_success(rcount, int(count))