benchmark fixes

Author: sakchal

examples/benchmarks/bench_blas.py

@@ -1,7 +1,7 @@
 #!/usr/bin/python
 
 #######################################################
-# Copyright (c) 2015, ArrayFire
+# Copyright (c) 2024, ArrayFire
 # All rights reserved.
 #
 # This file is distributed under 3-clause BSD license.
@@ -15,7 +15,6 @@
 
 import arrayfire as af
 
-# TODO: Remove -1 from sync() after default value has been put in
 try:
     import numpy as np
 except ImportError:

examples/benchmarks/bench_fft.py

@@ -1,3 +1,11 @@
+#!/usr/bin/python
+
+#######################################################
+# Copyright (c) 2024, ArrayFire
+# All rights reserved.
+#
+# This file is distributed under 3-clause BSD license.
+# The complete license agreement can be obtained at:
 # http://arrayfire.com/licenses/BSD-3-Clause
 ########################################################
 

examples/benchmarks/monte_carlo_pi.py

@@ -13,15 +13,10 @@
 from random import random
 from time import time
 
-import arrayfire as af
+import numpy as np
 
-try:
-    import numpy as np
-except ImportError:
-    np = None  # type: ignore[assignment]
+import arrayfire as af
 
-#TODO: Remove Python2 support?
-# alias range / xrange because xrange is faster than range in python2
 try:
     frange = xrange  # type: ignore[name-defined]
 except NameError: