[GPU] use shared Communicator and remove MPI dependency from VirtualFluids_GPU. Renamed mpi module to parallel

pythonbindings/pyfluids/__init__.py

@@ -33,26 +33,26 @@ r"""
 =======================================================================================
 """
 try:
-    from .bindings import basics
+    from . import basics
 except ImportError:
     print("Basics bindings not included")
 try:
-    from .bindings import logger
+    from . import logger
 except ImportError:
     print("Logger bindings not included")
 try:
-    from .bindings import lbm
+    from . import lbm
 except ImportError:
     print("LBM bindings not included")
 try:
-    from .bindings import communicator
+    from . import communicator
 except ImportError:
     print("communicator bindings not included")
 try:
-    from .bindings import gpu
+    from . import gpu
 except ImportError:
     print("GPU bindings not included")
 try:
-    from .bindings import cpu
+    from . import cpu
 except ImportError:
     print("CPU bindings not included")
\ No newline at end of file