I can only run in one cpu?

[Gezx]

I'm very sorry to trouble you. When I run --nprocesses more than one, it can't run. But --nprocesses 1 is ok, and the result of different nprocesses is similar?

[apsdehal]

What exactly is that error you are seeing?

[ReinholdM]

@apsdehal Hi! I have the same problem when I choose num_process=16 as default. It only works on num_process=0. When num_process=16, the error info is shown as follows

[acse-yl421]

Hi,

I am wondering has anyone managed to fix the issue ? When I used --nprocesses 16, the execution hung at line, s = trainer.train_batch(ep), in run(num_epochs) main.py. As a result, no output was generated even waiting for 24 hrs. Could someone please help advise how I could run the programme with multiple processes ?

Thank you very much.

[Rza-A]

Hi,

I'm facing the same problem. When I use --nprocesses 1, it gets executed as expected. However, when --nprocesses 16 is used, it freezes on the following screen:

It seems, as @acse-yl421 said, it freezes on s = trainer.train_batch(ep). Also, Visdom doesn't show any progress/output.

The command I use to execute:

python main.py --env_name predator_prey --nagents 3 --nprocesses 16 --num_epochs 100 --epoch_size 15 --hid_size 128 --detach_gap 10 --lrate 0.001 --dim 3 --max_steps 3 --ic3net --vision 0 --recurrent --plot

The environment used:

Conda 4.12.0
Python 3.6.13

----------
Packages:
----------
certifi==2021.5.30
cffi @ file:///tmp/build/80754af9/cffi_1625814693874/work
charset-normalizer==2.0.12
cloudpickle==2.2.1
dataclasses==0.8
gym==0.9.6
gym-notices==0.0.8
-e git+https://github.com/IC3Net/IC3Net.git@69b7e0ce51a79def593abfef1a976f43e5e13f75#egg=ic3net_envs&subdirectory=ic3net-envs
idna==3.4
importlib-metadata==6.1.0
mkl-fft==1.0.6
mkl-random==1.0.1
numpy==1.13.3
Pillow==6.2.0
pycparser @ file:///tmp/build/80754af9/pycparser_1636541352034/work
pyglet==2.0.5
pyzmq==25.0.2
requests==2.27.1
six==1.16.0
TBB==0.2
torch==0.4.0
torchfile==0.1.0
tornado==6.1
typing-extensions==3.7.4.1
urllib3==1.26.15
visdom==0.1.4
zipp==3.15.0

Hardware:
11th Gen Intel(R) Core(TM) i9-11950H @ 2.60GHz

I know it is an old repo, but I'd appreciate any help.