diff --git a/src/arrows.c b/src/arrows.c
new file mode 100644
index 0000000..290079a
--- /dev/null
+++ b/src/arrows.c
@@ -0,0 +1,24 @@
+//=-------------------------------------------------------------------------=//
+//  Arrows management module                                                 //
+//                                                                           //
+//  Copyright © 2021 The Gem-graph Project                                   //
+//                                                                           //
+//  This file is part of gem-graph.                                          //
+//                                                                           //
+//  This program is free software: you can redistribute it and/or modify     //
+//  it under the terms of the GNU Affero General Public License as           //
+//  published by the Free Software Foundation, either version 3 of the       //
+//  License, or (at your option) any later version.                          //
+//                                                                           //
+//  This program is distributed in the hope that it will be useful,          //
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of           //
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //
+//  GNU Affero General Public License for more details.                      //
+//                                                                           //
+//  You should have received a copy of the GNU Affero General Public License //
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.   //
+//=-------------------------------------------------------------------------=//
+
+#include "../include/base.h"
+
+/* -------------------------------------------------------------------------- */
diff --git a/src/centers.c b/src/centers.c
index ad6c985..6a3d0d5 100644
--- a/src/centers.c
+++ b/src/centers.c
@@ -41,7 +41,7 @@ void CenterRemove(Center_t *oldCenter)
     register Center_t *prev;
     register Center_t *next;
 
-    printLog("Removing center %p\n", oldCenter);
+    //printLog("Removing center %p\n", oldCenter);
     if (!oldCenter) return;
 
     prev = oldCenter->prev;
diff --git a/src/localworker.c b/src/localworker.c
index 2d71c32..72e9262 100644
--- a/src/localworker.c
+++ b/src/localworker.c
@@ -43,7 +43,7 @@ pthread_t *WorkerInit(Worker_t *worker)
 static void *LittleWorker(void *worker)
 {
     Worker_t *args;
-    int a;
+    int a = rand()%__INT_MAX__;
 
     args = (Worker_t*) worker;
     printLog("Worker #%lu online\n", *args->id);
diff --git a/src/main.c b/src/main.c
index 65b82a5..05c8158 100644
--- a/src/main.c
+++ b/src/main.c
@@ -25,7 +25,7 @@
 
 
 #define ARROW_NUMBER 150
-#define MAX_CYCLES 40000
+#define MAX_CYCLES 400000
 #define SPACE_SIZE 10000
 #define MAX_THREAD 0
 
diff --git a/src/scheduler.c b/src/scheduler.c
index bbabe10..3b686b6 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -88,7 +88,7 @@ static void *GreatScheduler(void *scheduler)
     args = (Scheduler_t*) scheduler;
     printLog("Scheduler #%lu online\n", *args->id);
 
-    ncpu = get_nprocs();
+    ncpu = get_nprocs() * 3;
     printLog("%d CPUs available.\n", ncpu);
 
     // Data structures
@@ -119,13 +119,13 @@ static void *GreatScheduler(void *scheduler)
 
             // If a free area exists,
             if (workArea) {
-                printLog("A free workArea exists at %p\n", workArea);
+                //printLog("A free workArea exists at %p\n", workArea);
                 // preempt it,
                 CenterAdd(centersList, workArea);
                 // find a worker socket,
                 for (int i = 0; i < ncpu; i++) {
                     if (!workerArray[i].id) {
-                        printLog("Adding worker at rank %d\n", i);
+                        //printLog("Adding worker at rank %d\n", i);
                         // prepare the worker for the area,
                         workerArray[i].localWorkAreaCenter = workArea;
                         // create the worker,
diff --git a/src/tests/arrows.c b/src/tests/arrows.c
new file mode 100644
index 0000000..4756857
--- /dev/null
+++ b/src/tests/arrows.c
@@ -0,0 +1,22 @@
+//=-------------------------------------------------------------------------=//
+//  Arrows tests                                                             //
+//                                                                           //
+//  Copyright © 2021 The Gem-graph Project                                   //
+//                                                                           //
+//  This file is part of gem-graph.                                          //
+//                                                                           //
+//  This program is free software: you can redistribute it and/or modify     //
+//  it under the terms of the GNU Affero General Public License as           //
+//  published by the Free Software Foundation, either version 3 of the       //
+//  License, or (at your option) any later version.                          //
+//                                                                           //
+//  This program is distributed in the hope that it will be useful,          //
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of           //
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //
+//  GNU Affero General Public License for more details.                      //
+//                                                                           //
+//  You should have received a copy of the GNU Affero General Public License //
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.   //
+//=-------------------------------------------------------------------------=//
+
+#include "../centers.c"