add caching

Signed-off-by: Yotam-Perlitz <y.perlitz@ibm.com>

app.py

@@ -136,7 +136,7 @@ def run_load(
     corr_types=["kendall"],
     n_exps=10,
     my_benchmark=Benchmark(),
-    use_caching=False,
+    use_caching=True,
 ):
     # Create a hash of the inputs to generate a unique cache file for each set of inputs
     input_str = (
@@ -159,6 +159,7 @@ def run_load(
 
     # Define the cache directory
     cache_dir = "cache"
+    os.makedirs(cache_dir, exist_ok=True)
     cache_path = os.path.join(cache_dir, cache_file)
 
     # Check if the cache file exists