added folded_compilation option in SolverConfig (#270)

* added folded_compilation option in SolverConfig

src/lava/lib/optimization/solvers/generic/solver.py

@@ -162,6 +162,9 @@ class SolverConfig:
         backend.
     log_level: int
         Select log verbosity (40: default, 20: verbose).
+    folded_compilation: bool
+        A boolean flag to enable folded compilation, available only on
+        "Loihi2" backend. Default value is False.
     """
 
     timeout: int = 1e3
@@ -173,6 +176,7 @@ class SolverConfig:
     probe_time: bool = False
     probe_energy: bool = False
     log_level: int = 40
+    folded_compilation: bool = False
 
 
 @dataclass(frozen=True)
@@ -272,7 +276,11 @@ def solve(self, config: SolverConfig = SolverConfig()) -> SolverReport:
             An object containing all the data generated by the execution.
         """
         run_condition, run_cfg = self._prepare_solver(config)
-        self.solver_process.run(condition=run_condition, run_cfg=run_cfg)
+        folded_compile_config = None
+        if config.folded_compilation:
+            folded_compile_config = {'folded_view' : ['SolutionFinder']}
+        self.solver_process.run(condition=run_condition, run_cfg=run_cfg,
+                                compile_config=folded_compile_config)
         best_state, best_cost, best_timestep = self._get_results(config)
         cost_timeseries, state_timeseries = self._get_probing(config)
         self.solver_process.stop()