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fix

pull/6071/head
wangbluo 2024-10-11 14:16:21 +08:00
parent efe3042bb2
commit 0002ae5956
1 changed files with 22 additions and 15 deletions
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37
colossalai/shardformer/layer/attn.py
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@ -476,24 +476,31 @@ class RingAttention(torch.autograd.Function):
rank = dist.get_rank()
num_ring_size = world_size // num_rings
num_inner_group = num_ring_size // inner_ring_size
if tp_size > 1:
ranks = []
for i in range(num_rings):
for j in range(num_inner_group):
# find inner ring group in one sp groups
start = j + i * num_ring_size
ranks = list(range(start, start + tp_size * inner_ring_size, tp_size))
group = dist.new_group(ranks)
if rank in ranks:
inner_ring_group = group
for i in range(num_rings):
for j in range(num_inner_group):
start = j + (i * num_inner_group)
ranks = list(range(start, start + num_ring_size + 1, num_ring_size))
group = dist.new_group(ranks)
if rank in ranks:
inter_ring_group = group
start = i * num_ring_size
end = (i + 1) * num_ring_size
for idx in range(start, end):
inner_rank = []
for k in range(inner_ring_size):
current_num = idx + k * tp_size
if current_num >= end:
break
inner_rank.append(current_num)
if len(inner_rank) == inner_ring_size and inner_rank not in ranks:
ranks.append(inner_rank)
group = dist.new_group(inner_rank)
if rank in inner_rank:
inner_ring_group = group
for i in range(num_ring_size):
inter_rank = [i + j * num_ring_size for j in range(num_rings)]
group = dist.new_group(inter_rank)
if rank in inter_rank:
inter_ring_group = group
else:
# Create inner ring groups
for i in range(inner_ring_size):