Scheduler backprop

include/aidge/backend/cpu/operator/ErfImpl.hpp

@@ -32,7 +32,7 @@ class ErfImplBackward_cpu
 
 class ErfImpl_cpu : public OperatorImpl {
 public:
-    ErfImpl_cpu(const Erf_Op& op) : OperatorImpl(op) {}
+    ErfImpl_cpu(const Erf_Op& op) : OperatorImpl(op, "cpu") {}
 
     static std::unique_ptr<ErfImpl_cpu> create(const Erf_Op& op) {
         return std::make_unique<ErfImpl_cpu>(op);