fed_train.py
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import utils
import copy
from collections import OrderedDict
import model
import dataset
import importlib
importlib.reload(utils)
importlib.reload(model)
importlib.reload(dataset)
from utils_simple import *
import torch.quantization
def add_args(parser):
# parser.add_argument('--model', type=str, default='one',
# help='neural network used in training')
parser.add_argument('--dataset', type=str, default='cifar10', metavar='N',
help='dataset used for training')
parser.add_argument('--fold_num', type=int, default=0,
help='5-fold, 0 ~ 4')
parser.add_argument('--batch_size', type=int, default=128, metavar='N',
help='input batch size for training')
parser.add_argument('--lr', type=float, default=0.001, metavar='LR',
help='learning rate')
parser.add_argument('--n_nets', type=int, default=100, metavar='NN',
help='number of workers in a distributed cluster')
parser.add_argument('--comm_type', type=str, default='fedtwa',
help='which type of communication strategy is going to be used: layerwise/blockwise')
parser.add_argument('--comm_round', type=int, default=10,
help='how many round of communications we shoud use')
args = parser.parse_args(args=[])
return args
def start_fedavg(fed_model, args,
train_data_set,
data_idx_map,
net_data_count,
testloader,
device):
print("start fed avg")
criterion = nn.CrossEntropyLoss()
C = 0.1
num_edge = int(max(C * args.n_nets, 1))
total_data_count = 0
for _, data_count in net_data_count.items():
total_data_count += data_count
print("total data: %d" % total_data_count)
# quantize
# fed_model.eval()
# torch.jit.save(torch.jit.script(fed_model), './float.pth')
fed_model.fuse_model()
# modules_to_fuse = [['conv1', 'relu1'], ['conv2', 'relu2'], ['conv3', 'relu3']]
# torch.quantization.fuse_modules(fed_model, modules_to_fuse, inplace=True)
fed_model.qconfig = torch.quantization.get_default_qat_qconfig('fbgemm')
torch.quantization.prepare_qat(fed_model, inplace=True)
# for making shape of weight_fake_quant.scale
train_data_set.set_idx_map([0])
fed_model(torch.from_numpy(np.expand_dims(train_data_set[0][0], axis=0)).float())
edges, _, _ = init_models(args.n_nets, args)
# edges = [copy.deepcopy(fed_model) for net_cnt in range(args.n_nets)]
for edge_now in edges:
edge_now.fuse_model()
edge_now.qconfig = torch.quantization.get_default_qat_qconfig('fbgemm')
torch.quantization.prepare_qat(edge_now, inplace=True)
edge_now(torch.from_numpy(np.expand_dims(train_data_set[0][0], axis=0)).float())
# print('quantized \n', edges[edge_index].conv1)
# end
for cr in range(1, args.comm_round + 1):
print("Communication round : %d" % (cr))
np.random.seed(cr) # make sure for each comparison, select the same clients each round
selected_edge = np.random.choice(args.n_nets, num_edge, replace=False)
print("selected edge", selected_edge)
for edge_progress, edge_index in enumerate(selected_edge):
train_data_set.set_idx_map(data_idx_map[edge_index])
train_loader = torch.utils.data.DataLoader(train_data_set, batch_size=args.batch_size,
shuffle=True, num_workers=2)
print("[%2d/%2d] edge: %d, data len: %d" % (edge_progress, len(selected_edge), edge_index, len(train_data_set)))
edges[edge_index] = copy.deepcopy(fed_model)
edges[edge_index].to(device)
edges[edge_index].train()
edge_opt = optim.Adam(params=edges[edge_index].parameters(), lr=args.lr)
# train
for data_idx, (inputs, labels) in enumerate(train_loader):
inputs, labels = inputs.float().to(device), labels.long().to(device)
edge_opt.zero_grad()
# edge_opt[edge_index].zero_grad()
edge_pred = edges[edge_index](inputs)
edge_loss = criterion(edge_pred, labels)
edge_loss.backward()
edge_opt.step()
# edge_opt[edge_index].step()
edge_loss = edge_loss.item()
if data_idx % 100 == 0:
print('[%4d] loss: %.3f' % (data_idx, edge_loss))
break
edges[edge_index].to('cpu')
# print(edge_index)
# local_state = edges[edge_index].state_dict()
# for key in edges[edge_index].state_dict().keys():
# if 'activation_post_process' in key or 'fake_quant' in key:
# print(key, local_state[key])
# print()
# return
# cal weight using fed avg
update_state = OrderedDict()
for k, edge in enumerate(edges):
local_state = edge.state_dict()
for key in fed_model.state_dict().keys():
# if 'zero_point' in key:
# print(local_state[key])
if 'activation_post_process' in key or 'fake_quant' in key:
if k == 0:
update_state[key] = local_state[key]
else:
update_state[key] += local_state[key]
elif 'enable' in key:
update_state[key] = local_state[key]
else:
if k == 0:
update_state[key] = local_state[key] * (net_data_count[k] / total_data_count)
else:
update_state[key] += local_state[key] * (net_data_count[k] / total_data_count)
# break
for key in update_state.keys():
if 'enable' in key:
continue
if 'activation_post_process' in key or 'fake_quant' in key:
# print(key, update_state[key], update_state[key].type())
# print(key, update_state[key])
if torch.is_floating_point(update_state[key]):
update_state[key] = update_state[key] / args.n_nets
else:
update_state[key] = torch.floor_divide(update_state[key], args.n_nets)
# print(update_state[key])
fed_model.load_state_dict(update_state)
if cr % 1 == 0:
fed_model.to(device)
fed_model.eval()
total_loss = 0.0
cnt = 0
step_acc = 0.0
with torch.no_grad():
for i, data in enumerate(testloader):
inputs, labels = data
inputs, labels = inputs.float().to(device), labels.long().to(device)
outputs = fed_model(inputs)
_, preds = torch.max(outputs, 1)
loss = criterion(outputs, labels)
cnt += inputs.shape[0]
corr_sum = torch.sum(preds == labels.data)
step_acc += corr_sum.double()
running_loss = loss.item() * inputs.shape[0]
total_loss += running_loss
if i % 200 == 0:
print('test [%4d] loss: %.3f' % (i, loss.item()))
break
print((step_acc / cnt).item())
print(total_loss / cnt)
fed_model.to('cpu')
quantized_fed_model = torch.quantization.convert(fed_model.eval(), inplace=False)
torch.jit.save(torch.jit.script(quantized_fed_model), './quan.pth')
def start_train():
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
print(device)
args = add_args(argparse.ArgumentParser())
seed = 0
np.random.seed(seed)
torch.manual_seed(seed)
print("Loading data...")
kwargs = {"./dataset/DoS_dataset.csv" : './DoS_dataset.txt'}
train_data_set, data_idx_map, _, net_data_count, test_data_set = dataset.GetCanDatasetUsingTxtKwarg(args.n_nets, args.fold_num, **kwargs)
testloader = torch.utils.data.DataLoader(test_data_set, batch_size=args.batch_size,
shuffle=False, num_workers=2)
# run_benchmark('./quan.pth', testloader)
# run_benchmark('./float.pth', testloader)
fed_model = model.Net()
args.comm_type = 'fedavg'
if args.comm_type == "fedavg":
start_fedavg(fed_model, args,
train_data_set,
data_idx_map,
net_data_count,
testloader,
device)
if __name__ == "__main__":
start_train()