Don't pretend we can move a parallel exec

diff --git a/include/simgrid/s4u/Exec.hpp b/include/simgrid/s4u/Exec.hpp
index d02f57e..90a2e57 100644 (file)
--- a/include/simgrid/s4u/Exec.hpp
+++ b/include/simgrid/s4u/Exec.hpp
@@ -97,7 +97,7 @@ class XBT_PUBLIC ExecPar : public Exec {
   std::vector<double> bytes_amounts_;
   explicit ExecPar(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
                    const std::vector<double>& bytes_amounts);
-  ExecPtr set_host(Host* host) override { return this; }
+  ExecPtr set_host(Host* host) override { THROW_UNIMPLEMENTED; }
 
 public:
   ~ExecPar() = default;