diff --git a/docker/light b/docker/light
index 1bb3c81..eaa530e 100755
Binary files a/docker/light and b/docker/light differ
diff --git a/src/distributed/worker.hpp b/src/distributed/worker.hpp
index 65681ca..3ebeff0 100644
--- a/src/distributed/worker.hpp
+++ b/src/distributed/worker.hpp
@@ -81,11 +81,6 @@ void worker_main(light* S, int num_procs, int rank) {
             }
         }
 
-        int flag;
-        if(MPI_Test(solved_request, &flag, MPI_STATUS_IGNORE) == MPI_SUCCESS && flag == 0) {
-            MPI_Cancel(solved_request);
-        }
-
     } else if(res == 20) {
         int flag;
         int is_sat = 0;
@@ -94,15 +89,5 @@ void worker_main(light* S, int num_procs, int rank) {
         // when unknown do nothing.
     }
 
-    int flag;
-    if(MPI_Test(model_request, &flag, MPI_STATUS_IGNORE) == MPI_SUCCESS && flag == 0) {
-        MPI_Cancel(model_request);
-    }
-    if(MPI_Test(&S->terminal_request, &flag, MPI_STATUS_IGNORE) == MPI_SUCCESS && flag == 0) {
-        MPI_Cancel(&S->terminal_request);
-    }
-
-    //delete(S);
-
     MPI_Barrier(MPI_COMM_WORLD);
 }
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index e454673..1f450b5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -20,7 +20,7 @@ int main(int argc, char **argv) {
     light* S = new light();
     S->arg_parse(argc, argv);
 
-    // 初始化节点关系
+    // 初始化环形节点关系
     S->rank = rank;
     S->num_procs = num_procs;
     if(rank == 0) {
diff --git a/src/solve.cpp b/src/solve.cpp
index b95e3a1..5962171 100644
--- a/src/solve.cpp
+++ b/src/solve.cpp
@@ -164,10 +164,8 @@ int light::solve() {
         s->clause_sharing_init();
     }
 
-
-
     while (!terminated) {
-        usleep(100000);
+        usleep(500000);
 
         if(OPT(share)) s->do_clause_sharing();
 
@@ -185,6 +183,9 @@ int light::solve() {
             terminate_workers();
         }
     }
+
+    if(OPT(share)) s->clause_sharing_end();
+
     // printf("ending solve\n");
     // terminate_workers(); //important, need combine nps/dps !!!!!!!!!!!!!!!!