Optimization of the number of processes for 8 threads per solver

script_mac.py

@@ -507,7 +507,12 @@ def launch_researchs(args):
             d['final_prop'] = prop
             return d
 
-        with ProcessPoolExecutor(max_workers=mp.cpu_count()) as e:
+        # Fix number of processes
+        # PS: the new solver is optimized for 8 threads
+        nb_cpu_required = mp.cpu_count() / 8
+        nb_cpu_required = 1 if nb_cpu_required == 0 else nb_cpu_required
+
+        with ProcessPoolExecutor(max_workers=nb_cpu_required) as e:
 
             futures_and_output = {e.submit(compute_macs,
                                            update_params(job_property)