Change client.py

client.py

-#
-#   Hello World client in Python
-#   Connects REQ socket to tcp://localhost:5555
-#   Sends "Hello" to server, expects "World" back
-#
-
 import zmq
+import json
+import random
+
+
+def jacobi_iteration(u):
+	for i in range(1, len(u) - 1):
+		u[i] = 0.5 * (u[i - 1] + u[i + 1])
+
 
 context = zmq.Context()
 
-#  Socket to talk to server
-print("Connecting to hello world server…")
 socket = context.socket(zmq.REQ)
 socket.connect("tcp://192.168.2.110:5555")
 
-#  Do 10 requests, waiting each time for a response
-for request in range(10):
-    print("Sending request %s …" % request)
-    socket.send(b"Hello")
+print("Requesting parameters…")
+socket.send(b"jacobi_request")
+message = socket.recv().decode("ascii")
+params = json.loads(message)
+
+# initialize domain
+u = [random.random() for i in range(params["n_unknowns"])]
+u[0] = 0.0
+u[len(u) - 1] = 0.0
+socket.send("-".join(str(x) for x in u).encode("ascii"))
 
-    #  Get the reply.
-    message = socket.recv()
+while True:
+	# if requested, perform jacobi iteration and send result
+	message = socket.recv().decode("ascii")
+	if message != "next":
+		break
+	jacobi_iteration(u)
+	socket.send("-".join(str(x) for x in u).encode("ascii"))