feat: start listening notification

src/communication.py

@@ -99,8 +99,12 @@ class ClusterCommunicationModule():
             self.node_manager.status = 'none'
 
             print("You have leaved the cluster.")
-
             return False
+        elif command == '[START_LISTEN_TASK]':
+            self.client_sock.send('[START_LISTEN_TASK_CHECK]  {}'.encode())
+            print("The master has started listening for new task from Sepolia testnet...")
+
+        return True
 
 
     def request(self, host):                    # master side
@@ -136,6 +140,20 @@ class ClusterCommunicationModule():
                 print("1 worker disconnnected.")
         return ans
 
+    def start_listen_task(self):
+        disconnected_counter = 0
+        for conn in self.worker_conns:
+            try:
+                conn.send('[START_LISTEN_TASK]  {}'.encode())
+                data, args = conn.recv(1024).decode().split('  ')
+            except:
+                disconnected_counter += 1
+                self.worker_conns.remove(conn)
+        if disconnected_counter != 0:
+            print(f'{disconnected_counter} worker disconnected.')
+        else:
+            print(f'All other {len(self.worker_conns)} workers are waiting...')
+
     def exit(self):
         if self.node_manager.status == 'master':
             for conn in self.worker_conns:

src/node_manager.py

@@ -3,6 +3,8 @@ from src.communication import ServiceExplorationModule, ClusterCommunicationModu
 import torch
 import time
 import docker
+from web3 import Web3
+from src.scheduler import Scheduler
 
 class NodeManager():
     def __init__(self, host, port):
@@ -25,6 +27,9 @@ class NodeManager():
         # docker client
         self.docker_client = docker.from_env()
 
+        # web3 provider
+        self.w3 = Web3(Web3.HTTPProvider('https://eth-sepolia.g.alchemy.com/v2/'+ALCHEMY_KEY))
+
         time.sleep(2)
 
     def get_GPU_info(self):
@@ -59,7 +64,7 @@ class NodeManager():
                     self.actions = [
                         {'explanation': 'Add another node into our cluster', 'function': 'add_node'},
                         {'explanation': 'Cluster info', 'function': 'cluster_info'},
-                        {'explanation': 'Start working', 'function': 'start_work'},
+                        {'explanation': 'Start waiting for the new task', 'function': 'start_listen_task'},
                         {'explanation': 'Exit', 'function': 'exit'},
                     ]
             except:
@@ -67,6 +72,11 @@ class NodeManager():
         else:
             print("No other nodes in your subnet.")
 
+    def start_listen_task(self):
+        print("Waiting for the new task from Sepolia testnet...")
+        self.cluster_communication_module.start_listen_task()
+
+
     def cluster_info(self):
         info = self.cluster_communication_module.cluster_info()
         print(f"\nThere are {len(info)+1} nodes in this cluster.")