diff --git a/.gitignore b/.gitignore
index b36210a..2402201 100755
--- a/.gitignore
+++ b/.gitignore
@@ -56,4 +56,5 @@ obj/
 bin/
 output.csv
 *.log
-output-S3.csv
\ No newline at end of file
+output-S3.csv
+output-MPI.csv
\ No newline at end of file
diff --git a/MPI-colleurs.txt b/MPI-colleurs.txt
new file mode 100644
index 0000000..fcc8298
--- /dev/null
+++ b/MPI-colleurs.txt
@@ -0,0 +1,72 @@
+Bouverot
+MATH
+18 16 9 2024
+8 18 9 2024
++
+Sabban
+MATH
+14 18 9 2024
++
+Giral-Martinez
+MATH
+17 18 9 2024
+18 18 9 2024
++
+Pelletier
+MATH
+17 17 9 2024
+18 17 9 2024
++
+Riveline
+MATH
+17 17 9 2024
+18 17 9 2024
++
+Dailly
+MATH
+17 17 9 2024
+18 17 9 2024
++
+Thiébaud
+PHYSICS
+16 20 9 2024
++
+Pignard
+PHYSICS
+17 18 9 2024
+18 18 9 2024
++
+Creuset
+PHYSICS
+14 19 9 2024
+15 19 9 2024
++
+Chevalier
+PHYSICS
+17 17 9 2024
++
+Robin
+PHYSICS
+17 18 9 2024
++
+Montarou
+ENGLISH
+16 18 9 2024
+17 18 9 2024
+18 18 9 2024
++
+Graff
+ENGLISH
+16 18 9 2024
+17 18 9 2024
+18 18 9 2024
++
+LeLouarne
+ENGLISH
+18 18 9 2024
++
+Halfon
+INFO
+14 19 9 2024
++
+$
diff --git a/MPI-creneaux.txt b/MPI-creneaux.txt
new file mode 100644
index 0000000..3db0d3d
--- /dev/null
+++ b/MPI-creneaux.txt
@@ -0,0 +1,27 @@
+18 16 9 2024
+17 17 9 2024
+17 17 9 2024
+17 17 9 2024
+17 17 9 2024
+18 17 9 2024
+18 17 9 2024
+18 17 9 2024
+8 18 9 2024
+14 18 9 2024
+16 18 9 2024
+16 18 9 2024
+17 18 9 2024
+17 18 9 2024
+17 18 9 2024
+17 18 9 2024
+17 18 9 2024
+18 18 9 2024
+18 18 9 2024
+18 18 9 2024
+18 18 9 2024
+18 18 9 2024
+14 19 9 2024
+14 19 9 2024+
+15 19 9 2024
+16 20 9 2024
+$
diff --git a/Makefile b/Makefile
index df69feb..3423697 100755
--- a/Makefile
+++ b/Makefile
@@ -6,10 +6,13 @@ LFLAGS=
 all: bin/colloscope
 
 test: bin/colloscope
-	bin/colloscope -v S3-creneaux.txt 31 S3-colleurs.txt 16 7 15 1000 output-S3.csv 3 6
+	bin/colloscope -v S3-creneaux.txt 31 S3-colleurs.txt 16 7 15 3000 output-S3.csv 3 6
+
+mpi-all: bin/colloscope
+	bin/colloscope -v MPI-creneaux.txt 26 MPI-colleurs.txt 15 12 14 10000 output-MPI.csv 3 999999
 
 mem: bin/
-	valgrind --leak-check=full ./bin/colloscope -v S3-creneaux.txt 31 S3-colleurs.txt 16 7 15 100 output-S3.csv 3 6
+	valgrind --leak-check=full ./bin/colloscope -v S3-creneaux.txt 21 S3-colleurs.txt 16 7 15 100 output-S3.csv 3 6
 
 OBJECTS = obj/structure.o obj/algorithm.o obj/display.o obj/logger.o obj/main.o
 bin/colloscope: $(OBJECTS)
diff --git a/S3-tds.txt b/S3-tds.txt
index 55ccace..95295bb 100755
--- a/S3-tds.txt
+++ b/S3-tds.txt
@@ -1,29 +1,101 @@
-14 23 4 2024
-T-3-1
+14 18 9 2024
+T-2-2
 
 1
+9
+10
+13
 2
-3
 +
-12 22 4 2024
-T-1-1
+14 18 9 2024
+T-4-3
 
-1
-2
 3
+5
+7
+8
+11
 +
-14 24 4 2024
-T-1-1
+14 18 9 2024
+T-4-1
 
-1
-2
-3
+4
+6
+12
+14
 +
-13 22 4 2024
-T-1-1
+14 19 9 2024
+T-2-1
+
+1
+9
+10
+13
+2
++
+14 19 9 2024
+T-4-2
+
+3
+5
+7
+8
+11
++
+14 19 9 2024
+T-4-4
+
+4
+6
+12
+14
++
+15 19 9 2024
+T-2-1
+
+1
+9
+10
+13
+2
++
+15 19 9 2024
+T-4-2
+
+3
+5
+7
+8
+11
++
+15 19 9 2024
+T-4-4
+
+4
+6
+12
+14
++
+14 18 9 2024
+T-2-2
+
+8
+9
+10
+11
+12
+13
+14
++
+14 18 9 2024
+T-2-1
 
 1
 2
 3
+4
+5
+6
+7
 +
 $
\ No newline at end of file
diff --git a/src/algorithm.c b/src/algorithm.c
index 91b5c10..2b7a7b7 100755
--- a/src/algorithm.c
+++ b/src/algorithm.c
@@ -192,6 +192,9 @@ int free_math_space(creneau* edt, int len_edt, int id) {
     return howmany;
 }
 
+static int* perm0 ;
+static int perm0len ;
+
 void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleur* chads, int len_chads, int n_weeks, int grp, topic start_rotation, int mth, int inf, int* skip_count, int mat_halt, int info_app) {
     topic rotation = start_rotation;    // physics/english rotation
     int math = mth;                     // math (3/4)
@@ -215,6 +218,8 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
     int math_dude = 0;                              // length of colleur*
     int weeklen;
 
+    bool is_searching_in_blacklisted = true ;
+
     bool normal_skip = true;
 
     for(int week = 0; week < n_weeks; week++) {
@@ -242,9 +247,10 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
         normal_skip = true;
 
         info++;
+        is_searching_in_blacklisted = true ;
         // info colle
         while(info >= info_app) {
-            if(edt[k+r%weeklen].mat == NOTHING && edt[k+r%weeklen].length == 2) {   
+            if(edt[k+r%weeklen].mat == NOTHING && edt[k+r%weeklen].length == 2 && (!is_searching_in_blacklisted || edt[k+r%weeklen].blacklisted == true)) {   
                 // if creneau is empty
                 // import all colleurs available
                 colleur* dudes = get_colleurs(chads, len_chads, edt[k+r%weeklen].date, &len_dudes);
@@ -273,9 +279,12 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
                 }
                 free(dudes);
             }
-            if(!found && halt > weeklen) {
+            if(!found && halt > 2*weeklen) {
                 info = 0;
                 *skip_count += (1-normal_skip);
+                warn("skipping info colle for group %d (week %d)", grp, week);
+            } else if(halt > weeklen) {
+                is_searching_in_blacklisted = false ;
             }
             r++;
             halt++;
@@ -285,11 +294,12 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
         found = false;
         halt = 0;
         normal_skip = true;
+        is_searching_in_blacklisted = true ;
 
         // if there is a math colle to add, enter this loop
         while(remaining_to_add == 2) {
 
-            if(edt[k+r%weeklen].mat == NOTHING && edt[k+r%weeklen].length == 1) {   
+            if(edt[k+r%weeklen].mat == NOTHING && edt[k+r%weeklen].length == 1 && (!is_searching_in_blacklisted || edt[k+r%weeklen].blacklisted == true)) {   
                 // if creneau is empty
                 // import all colleurs available
                 colleur* dudes = get_colleurs(chads, len_chads, edt[k+r%weeklen].date, &len_dudes);
@@ -318,12 +328,17 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
                         }
                     }
                     free(perm);
+                } else {
+                    error("No colleurs available at (%d %d %d %d)", edt[k+r%weeklen].date.hour, edt[k+r%weeklen].date.day, edt[k+r%weeklen].date.month, edt[k+r%weeklen].date.year);
                 }
                 free(dudes);
             }
-            if(!found && halt > weeklen) {
+            if(!found && halt > 2*weeklen) {
                 remaining_to_add--;
                 *skip_count += 1;
+                warn("skipping math colle for group %d (week %d)", grp, week);
+            } else if(halt > weeklen) {
+                is_searching_in_blacklisted = false ;
             }
             r++;
             halt++;
@@ -332,10 +347,12 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
         r = rand()%weeklen;
         found = false;
         halt = 0;
+        is_searching_in_blacklisted = true ;
 
         // do it again for physics/english colles
         while(remaining_to_add == 1) {
-            if(edt[k+r%weeklen].mat == NOTHING && edt[k+r%weeklen].length == 1) {
+            normal_skip = true;
+            if(edt[k+r%weeklen].mat == NOTHING && edt[k+r%weeklen].length == 1 && (!is_searching_in_blacklisted || edt[k+r%weeklen].blacklisted == true)) {
                 colleur* dudes = get_colleurs(chads, len_chads, edt[k+r%weeklen].date, &len_dudes);
                 len_perm = len_dudes;
                 if(len_dudes != 0) {
@@ -356,15 +373,22 @@ void add_colles_for_group_MP2I(int* weeks_len, creneau* edt, int len_edt, colleu
                                 found = true;
                                 remaining_to_add--;
                             }
+                        } else if(edt[k+r%weeklen].allow_grps[grp-1] == true) {
+                            normal_skip = false;
                         }
                     }
                     free(perm);
+                } else {
+                    error("No colleurs available at (%d %d %d %d)", edt[k+r%weeklen].date.hour, edt[k+r%weeklen].date.day, edt[k+r%weeklen].date.month, edt[k+r%weeklen].date.year);
                 }
                 free(dudes);
             }
-            if(!found && halt > weeks_len[week]) {
+            if(!found && halt > 2*weeklen) {
                 remaining_to_add--;
                 *skip_count += 1;
+                warn("skipping L2 colle for group %d (week %d)", grp, week);
+            } else if(halt > weeklen) {
+                is_searching_in_blacklisted = false ;
             }
             r++;
             halt++;
@@ -415,7 +439,7 @@ int max(int x, int y) {
 }
 
 int score(creneau* edt, int len_edt, int grp, int n_weeks) {
-    int score = 100;
+    int score = n_weeks*300;
     
     int dist = 0;
     for(int i = 0; i < len_edt; i++) {
@@ -425,9 +449,6 @@ int score(creneau* edt, int len_edt, int grp, int n_weeks) {
                 if(dist == 0) {
                     score -= 4;
                 }
-                /*if(str_equal(edt[i].name, edt[j].name)) {
-                    score -= max(0, 28-dist);
-                }*/
                 if(dist == 7 && edt[i].date.hour == edt[j].date.hour) {
                     score -= 5;
                 }
@@ -659,7 +680,7 @@ void aux_2(creneau* edt, int len_edt, colleur* chads, int len_chads, int n_group
         }
         current++;
     }
-    //printf("----------------------------\n");
+    debug("---------------------- %d ----------------------", n_groups);
 
     int* group_stats = malloc(sizeof(int)*n_groups);
     int* group_temp = malloc(sizeof(int)*n_groups);
@@ -677,15 +698,16 @@ void aux_2(creneau* edt, int len_edt, colleur* chads, int len_chads, int n_group
     int** occ_data = generate_matrix(n_groups, len_chads, 0);;
     info("Testing %d combinations...", n_sim);
     printf("\n");
+    perm0 = malloc(sizeof(int)*20) ;
     for(int k = 0; k < n_sim*(1 - (max_score == n_groups*100)); k++) {
         if(k >= a) {
             printf("\x1b[1F");
             printf("\x1b[2K");
-            info("%d%% Completed (current max is %d/%d)", 100*a/n_sim, max_score, 100*n_groups);
+            info("%d%% Completed (current max is %d/%d)", 100*a/n_sim, max_score, n_weeks*300*n_groups);
             a += n_sim/100;
         }
         local_score = 0;
-        local_min = 100;
+        local_min = 909090909;
         skipped = 0;
         for(int i = 0; i < n_groups; i++) {
             add_colles_for_group_MP2I(weeks_len, edt, len_edt, chads, len_chads, n_weeks, i+1, (topic)(2+i%2), i%math_halt, i%info_app, &skipped, math_halt, info_app);
@@ -700,7 +722,7 @@ void aux_2(creneau* edt, int len_edt, colleur* chads, int len_chads, int n_group
                 local_group = i+1;
             }
         }
-        local_score -= skipped*30;
+        local_score -= skipped*200;
         if(local_score > max_score) {
             max_score = local_score;
             screwed_group = local_group;
@@ -720,14 +742,14 @@ void aux_2(creneau* edt, int len_edt, colleur* chads, int len_chads, int n_group
 
     printf("\x1b[1F");
     printf("\x1b[2K");
-    if(max_score == 100*n_groups) {
+    if(max_score == n_weeks*300*n_groups) {
         info("Interrupting early due to a perfect score achieved");
     } else {
-        info("100%% Completed, best score is %d/%d (without skip penalty) with %d skipped colle(s)", max_score+global_skipped*30, 100*n_groups, global_skipped);
-        info("Most screwed group is %d with a score of %d/100", screwed_group, global_min);
+        info("100%% Completed, best score is %d/%d (without skip penalty) with %d skipped colle(s)", max_score+global_skipped*30, n_groups*n_weeks*300, global_skipped);
+        info("Most screwed group is %d with a score of %d/%d", screwed_group, global_min, n_weeks*300);
         debug("Stats for all groups are :");
         for(int i = 0; i < n_groups; i++) {
-            debug("Group %d : %d/100", i+1, group_stats[i]);
+            debug("Group %d : %d/%d (or %lf %%)", i+1, group_stats[i], n_weeks*300, ((double)group_stats[i]/(n_weeks*3.0)));
         }
     }
     int end = time(NULL);
@@ -738,6 +760,7 @@ void aux_2(creneau* edt, int len_edt, colleur* chads, int len_chads, int n_group
         print_arr(occ_data[k], len_chads);
     }
     info("Took %ds to find", end-start);
+    free(perm0);
     free(group_stats);
     free(group_temp);
     free(weeks_len);
diff --git a/src/structure.c b/src/structure.c
index 9f83331..0c00fbe 100755
--- a/src/structure.c
+++ b/src/structure.c
@@ -309,6 +309,7 @@ creneau* import_creneaux_oneweek(char* filename, int len_file, int n_weeks, int
                 edt[i].salle.building = 'N';
                 edt[i].salle.id = 0;
                 edt[i].length = 1;
+                edt[i].blacklisted = false ;
                 edt[i].allow_grps = malloc(sizeof(bool)*n_groups);
                 for(int ii = 0; ii < n_groups; ii++) {
                     edt[i].allow_grps[ii] = true;
@@ -349,6 +350,7 @@ creneau* import_creneaux_oneweek(char* filename, int len_file, int n_weeks, int
             edt[k*len_file+i].salle.id = 0;
             edt[k*len_file+i].length = edt[i].length;
             edt[k*len_file+i].allow_grps = malloc(sizeof(bool)*n_groups);
+            edt[k*len_file+i].blacklisted = false ;
             for(int ii = 0; ii < n_groups; ii++) {
                 edt[k*len_file+i].allow_grps[ii] = true;
             }
@@ -547,9 +549,11 @@ void import_tds(creneau* edt, int len_edt, int len_oneweek, char* filename) {
                         //info("[%d, %d]", buffer, edtptr + k*len_oneweek);
                         //usleep(1000000);
                         edt[edtptr + k*len_oneweek].allow_grps[buffer-1] = false;
+                        edt[edtptr + k*len_oneweek].blacklisted = true;
                         while(equal_d(edt[edtptr + k*len_oneweek].date, edt[edtptr + k*len_oneweek + os].date)) {
                             //info("[%d, %d]", buffer, edtptr + k*len_oneweek + os);
                             edt[edtptr + k*len_oneweek + os].allow_grps[buffer-1] = false;
+                            edt[edtptr + k*len_oneweek + os].blacklisted = true ;
                             os++;
                         }
                         k++;
@@ -563,11 +567,15 @@ void import_tds(creneau* edt, int len_edt, int len_oneweek, char* filename) {
                         //usleep(1000000);
                         if((k+ban_init)%ban_cooldown == 0) {
                             edt[edtptr + k*len_oneweek].allow_grps[buffer-1] = false;
+                            edt[edtptr + k*len_oneweek].blacklisted = true;
+                            //info("banning at week %d for group %d", k, buffer);
                         }
                         while(equal_d(edt[edtptr + k*len_oneweek].date, edt[edtptr + k*len_oneweek + os].date)) {
                             //info("[%d, %d]", buffer, edtptr + k*len_oneweek + os);
                             if((k+ban_init)%ban_cooldown == 0) {
                                 edt[edtptr + k*len_oneweek + os].allow_grps[buffer-1] = false;
+                                edt[edtptr + k*len_oneweek + os].blacklisted = true ;
+                                //info("banning at week %d for group %d", k, buffer);
                             }
                             os++;
                         }
diff --git a/src/structure.h b/src/structure.h
index 10374fc..1696472 100755
--- a/src/structure.h
+++ b/src/structure.h
@@ -40,7 +40,7 @@ typedef struct room {char building; int id;} room;
 // rooms
 // building can be C, M, R or V
 
-typedef struct creneau {int length; date date; int group; char* name; int namelen; topic mat; room salle; bool* allow_grps;} creneau;
+typedef struct creneau {int length; date date; int group; char* name; int namelen; topic mat; room salle; bool* allow_grps; bool blacklisted;} creneau;
 // one créneau de colle
 // /!\ creneau has to be sorted by ascending dates
 // with edt being a creneau*, it is required to have edt[0] be a Monday and edt[len(edt)-1] has to be a Friday