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fix: ensure SM120/121 SFA/SFB contiguity #1963

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Merged
merged 2 commits into from
Oct 31, 2025
+8 −4
Merged

fix: ensure SM120/121 SFA/SFB contiguity #1963

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963c900
fix: Remove redundant CHECK_CONTIGUOUS for SFA/SFB
yongwww Sep 1, 2025
aebb305
restore CHECK_CONTIGUOUS and fix scales
yongwww Sep 10, 2025
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12 changes: 8 additions & 4 deletions flashinfer/gemm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -259,8 +259,10 @@ def forward(
scale_k_count = (
k_dim + scale_gran_k - 1
) // scale_gran_k # k dimension
scale_a_expanded = scale_a.view(1, 1).expand(
scale_m_count, scale_k_count
scale_a_expanded = (
scale_a.view(1, 1)
.expand(scale_m_count, scale_k_count)
.contiguous()
)
else:
scale_a_expanded = scale_a
Expand All @@ -273,8 +275,10 @@ def forward(
scale_k_count = (
k_dim + scale_gran_k - 1
) // scale_gran_k # k dimension
scale_b_expanded = scale_b.view(1, 1).expand(
scale_n_count, scale_k_count
scale_b_expanded = (
scale_b.view(1, 1)
.expand(scale_n_count, scale_k_count)
.contiguous()
)
else:
scale_b_expanded = scale_b
Expand Down