fixed .as_posix error in join_paths method

experiments/pyexps/netperf_sysconf.py

@@ -11,9 +11,8 @@ HOST0 -- NIC0 ------ SWITCH ------ NIC1 -- HOST1
 This scripts generates the experiments with all the combinations of different execution modes
 """
 
-# host_types = ['qemu', 'gem5', 'qt']
 host_types = ['gem5']
-nic_types = ['i40e', 'vr']
+nic_types = ['i40e']
 net_types = ['switch']
 experiments = []
 

experiments/simbricks/orchestration/instantiation/base.py

@@ -410,7 +410,7 @@ class Instantiation(util_base.IdObj):
         print(f"joined={joined}")
         if enforce_existence and not joined.exists():
             raise Exception(f"couldn't join {base} and {relative_path}")
-        return joined.absolute()
+        return joined.absolute().as_posix()
 
     def join_repo_base(self, relative_path: str) -> str:
         return self._join_paths(