better default params

resolve/data/observation.py

@@ -355,22 +355,22 @@ class Observation(BaseObservation):
         )
 
     @staticmethod
-    def split_data_file(data_path, ntask, target_folder, base_name, nwork):
+    def split_data_file(data_path, ntask, target_folder, base_name, nwork, compress):
         from os import makedirs
         makedirs(target_folder, exist_ok=True)
 
         for rank in range(ntask):
             lo, hi = ift.utilities.shareRange(nwork, ntask, rank)
             obs = Observation.load(data_path, (lo, hi))
-            obs.save(f"{target_folder}/{base_name}_{rank}.npz", compress=False)
+            obs.save(f"{target_folder}/{base_name}_{rank}.npz", compress=compress)
 
 
     @staticmethod
-    def mpi_load(data_folder, base_name, full_data_set, nwork, comm=None):
+    def mpi_load(data_folder, base_name, full_data_set, nwork, comm=None, compress=False):
         if master:
             from os.path import isdir
             if not isdir(data_folder):
-                Observation.split_data_file(full_data_set, comm.Get_size(), data_folder, base_name, nwork)
+                Observation.split_data_file(full_data_set, comm.Get_size(), data_folder, base_name, nwork, compress)
             if comm is None:
                 return Observation.load(full_data_set)