UDP Sockets

Consuming the module

Communication Protocol

The client sends to the server a JSON file with the value of parameter p in the following format:

{
    "parameter" : [1.0, 2.3]
}

The server solves the optimization problem and returns a JSON file in the following format:

{
    "p" : [1.0, 2.3],
    "u" : [1.1479546337, 1.2921200844, 1.6371973229, 2.6535245176],
    "n" : 6,
    "f" : -7.032997779803717,
    "dt" : "422.958µs"
}

Here p is the parameter sent by the client, u is the solution, n is the number of iterations, f is the logarithm (base 10) of the fixed-point residual and dt is the elapsed time.

NOTE: Every time the solver is called, it is warm started with the previous solution.

Errors

If the server receives a request it cannot process, it will return an error message. For example:

{
    "parameter": [1.0, 22.0, 33.0]
}

Will return:

{
    "error":"wrong param size (np=2, len(p)=3)"
}

Killing the solver

To kill the process gracefully send the message x. The server will return to you the message:

{
    "msg":"Received quit command"
}

and will exit immediately.

Linux command line

netcat -u 127.0.0.1 3248