Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

enqueue fixed. #100

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

enqueue fixed. #100

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion main_moco.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -158,7 +158,7 @@ def print_pass(*args):
print("=> creating model '{}'".format(args.arch))
model = moco.builder.MoCo(
models.__dict__[args.arch],
args.moco_dim, args.moco_k, args.moco_m, args.moco_t, args.mlp)
args.moco_dim, args.moco_k, args.moco_m, args.moco_t, args.mlp, args.batch_size)
print(model)

if args.distributed:
Expand Down
7 changes: 4 additions & 3 deletions moco/builder.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ class MoCo(nn.Module):
Build a MoCo model with: a query encoder, a key encoder, and a queue
https://arxiv.org/abs/1911.05722
"""
def __init__(self, base_encoder, dim=128, K=65536, m=0.999, T=0.07, mlp=False):
def __init__(self, base_encoder, dim=128, K=65536, m=0.999, T=0.07, mlp=False, fixed_batch_size = 256):
"""
dim: feature dimension (default: 128)
K: queue size; number of negative keys (default: 65536)
Expand All @@ -20,6 +20,7 @@ def __init__(self, base_encoder, dim=128, K=65536, m=0.999, T=0.07, mlp=False):
self.K = K
self.m = m
self.T = T
self.fixed_batch_size = fixed_batch_size

# create the encoders
# num_classes is the output fc dimension
Expand Down Expand Up @@ -57,11 +58,11 @@ def _dequeue_and_enqueue(self, keys):
batch_size = keys.shape[0]

ptr = int(self.queue_ptr)
assert self.K % batch_size == 0 # for simplicity
assert self.K % self.fixed_batch_size == 0 # for simplicity

# replace the keys at ptr (dequeue and enqueue)
self.queue[:, ptr:ptr + batch_size] = keys.T
ptr = (ptr + batch_size) % self.K # move pointer
ptr = (ptr + self.fixed_batch_size) % self.K # move pointer

self.queue_ptr[0] = ptr

Expand Down