assert len(plasma_managers) >= 1 AssertionError

[jp18813100494]

anyone know how to solve the problem?

[hmania]

It looks like you did not start Ray, the distributed execution engine. You first need to run the command

ray start --head --redis-port=6379 --num-workers=18 (18 or however many workers you want)

If you did run it, the function socket.gethostbyname might not return the right local_ip address (depending on the system you have). In that case, you should just copy paste the redis address returned by the "ray start" command into the python script.

[jp18813100494]

@hmania Thank you very much.I solved my problem at your suggestion!However I met another problem in the next step！Can you help me?

[hmania]

It looks like you don't have enough memory. You could try giving the "count" variable in line 31 a smaller value, which would translate into a smaller shared noise table. Ideally you would want that value large to keep samples independent, but you should see if making it smaller solves your problem.

[jp18813100494]

@hmania You are right.I solved the problem by change the variable "count" smaller!