--- /dev/null
+# Copyright (c) 2006-2023. The SimGrid Team. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the license (GNU LGPL) which comes with this package.
+
+from argparse import ArgumentParser
+import sys
+from simgrid import Engine, Operation, ExecOp, IoOp, IoOpType
+
+def parse():
+ parser = ArgumentParser()
+ parser.add_argument(
+ '--platform',
+ type=str,
+ required=True,
+ help='path to the platform description'
+ )
+ return parser.parse_args()
+
+def callback(op):
+ print(f'[{Engine.clock}] Operation {op} finished ({op.count})')
+
+if __name__ == '__main__':
+ args = parse()
+ e = Engine(sys.argv)
+ e.load_platform(args.platform)
+ Operation.init()
+
+ # Retrieve hosts
+ bob = e.host_by_name('bob')
+ carl = e.host_by_name('carl')
+
+ # Create operations
+ exec1 = ExecOp.init("exec1", 1e9, bob)
+ exec2 = ExecOp.init("exec2", 1e9, carl)
+ write = IoOp.init("write", 1e7, bob.disks[0], IoOpType.WRITE)
+ read = IoOp.init("read", 1e7, carl.disks[0], IoOpType.READ)
+
+ # Create the graph by defining dependencies between operations
+ exec1.add_successor(write)
+ write.add_successor(read)
+ read.add_successor(exec2)
+
+ # Add a function to be called when operations end for log purpose
+ Operation.on_end_cb(callback)
+
+ # Enqueue two executions for operation exec1
+ exec1.enqueue_execs(2)
+
+ # runs the simulation
+ e.run()
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