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Daniel Han-Chen 2024-02-24 13:54:00 +11:00
commit 893b5dfe2b
2 changed files with 6 additions and 6 deletions
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10
unsloth/kernels/geglu.py
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@ -27,10 +27,10 @@ def _forward_kernel(e, g, h, n_elements, BLOCK_SIZE : tl.constexpr,):
# f = 1/2 * e * (1 + erf(1/sqrt(2) * e))
# h = f * up
e_row = tl.load(e + offsets, mask = mask, other = 0).to(tl.float32)
g_row = tl.load(g + offsets, mask = mask, other = 0).to(tl.float32)
g_row = tl.load(g + offsets, mask = mask, other = 0)#.to(tl.float32)
f_row = 0.5 * e_row * (tl.math.erf(tl.math.rsqrt(2.0) * e_row) + 1.0)
# f_row = f_row.to(g_row.dtype) # Exact copy from HF
f_row = f_row.to(g_row.dtype) # Exact copy from HF
h_row = f_row * g_row
# Store h
@ -64,16 +64,16 @@ def _backward_kernel(DW, e, g, n_elements, BLOCK_SIZE : tl.constexpr,):
offsets = block_idx*BLOCK_SIZE + tl.arange(0, BLOCK_SIZE)
mask = offsets < n_elements
DW_row = tl.load(DW + offsets, mask = mask, other = 0).to(tl.float32)
DW_row = tl.load(DW + offsets, mask = mask, other = 0)#.to(tl.float32)
e_row = tl.load(e + offsets, mask = mask, other = 0).to(tl.float32)
g_row = tl.load(g + offsets, mask = mask, other = 0).to(tl.float32)
g_row = tl.load(g + offsets, mask = mask, other = 0)#.to(tl.float32)
# Break e_row away for re-use
# f = 1/2 * e * (1 + erf(1/sqrt(2) * e))
f_partial_row = 0.5 * (tl.math.erf(tl.math.rsqrt(2.0) * e_row) + 1.0)
f_row = f_partial_row * e_row
# f_row = f_row.to(DW_row.dtype)
f_row = f_row.to(DW_row.dtype)
# h = f * g
h_row = f_row * g_row
# df = DW * f

2
unsloth/models/llama.py
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@ -1400,7 +1400,7 @@ class FastLlamaModel:
(down_proj.base_layer if hasattr(down_proj, "base_layer") else down_proj).bias is None:
# https://stackoverflow.com/questions/50599045/python-replacing-a-function-within-a-class-of-a-module
layer.mlp.forward = types.MethodType(apply_lora_mlp, layer.mlp)
# layer.mlp.forward = types.MethodType(apply_lora_mlp, layer.mlp)
n_mlp += 1
else:
logger.warning_once(