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[ghstack-poisoned]
This commit is contained in:
Xia, Weiwen 2025-02-09 18:51:08 -08:00
parent 1933b6b11d
commit 47247b56ef
1 changed files with 19 additions and 20 deletions
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39
torch/_meta_registrations.py
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@ -2658,6 +2658,25 @@ if torch._C._has_mkldnn:
memory_format=memory_format,
)
@register_meta(torch.ops.quantized.int4mm_packed_weight_cpu)
def meta_int4mm_packed_weight_cpu(x, w, q_group_size, q_scale_and_zeros):
torch._check(x.dim() == 2, f"x must be a 2D tensor, got {x.dim()}D")
torch._check(w.dim() == 2, f"w must be a 2D tensor, got {w.dim()}D")
torch._check(
x.dtype in [torch.float32, torch.float16, torch.bfloat16],
f"expected x to be f32/f16/bf16, got {x.dtype}",
)
torch._check(w.dtype == torch.uint8, f"expected w to be uint8, got {w.dtype}")
torch._check(
q_group_size.dtype == torch.int64,
f"q_group_size must be int64, got {q_group_size.dtype}",
)
torch._check(
q_scale_and_zeros.dtype == x.dtype,
f"q_scale_and_zeros must have the same dtype as x, got {q_scale_and_zeros.dtype}",
)
return x.new_empty(x.size(0), w.size(0), dtype=x.dtype)
# from check_dim_size() in aten/src/ATen/TensorUtils.cpp.
def check_dim_size(tensor, dim, dim_size, size):
@ -3774,26 +3793,6 @@ def meta__weight_int8pack_mm(x, w, q_scales):
return x.new_empty(x.size(0), w.size(0), dtype=x.dtype)
@register_meta([torch.ops.quantized.int4mm_packed_weight_cpu])
def meta_int4mm_packed_weight_cpu(x, w, q_group_size, q_scale_and_zeros):
torch._check(x.dim() == 2, f"x must be a 2D tensor, got {x.dim()}D")
torch._check(w.dim() == 2, f"w must be a 2D tensor, got {w.dim()}D")
torch._check(
x.dtype in [torch.float32, torch.float16, torch.bfloat16],
f"expected x to be f32/f16/bf16, got {x.dtype}",
)
torch._check(w.dtype == torch.uint8, f"expected w to be uint8, got {w.dtype}")
torch._check(
q_group_size.dtype == torch.int64,
f"q_group_size must be int64, got {q_group_size.dtype}",
)
torch._check(
q_scale_and_zeros.dtype == x.dtype,
f"q_scale_and_zeros must have the same dtype as x, got {q_scale_and_zeros.dtype}",
)
return x.new_empty(x.size(0), w.size(0), dtype=x.dtype)
@register_meta(aten._cdist_forward.default)
def meta_cdist_forward(x1, x2, p, compute_mode):
torch._check(