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[webgpu] Restore MatMulNBits workgroup size for Phi-3.5 #23349

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Merged
guschmue merged 1 commit into from
Mar 6, 2025
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[webgpu] Restore MatMulNBits workgroup size for Phi-3.5 #23349

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3 changes: 2 additions & 1 deletion onnxruntime/contrib_ops/webgpu/quantization/matmul_nbits.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -583,7 +583,8 @@
program.CacheHint("T_M" + std::to_string(tile_m) + "Subgroup" + std::to_string(use_subgroup));
} else if (block_size == 32) {
components = 1;
constexpr uint32_t workgroup_size = 64;
// TODO: Tune the workgroup size when `M=1`.

Check warning on line 586 in onnxruntime/contrib_ops/webgpu/quantization/matmul_nbits.cc

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[cpplint] reported by reviewdog 🐶
 Missing username in TODO; it should look like "// TODO(my_username): Stuff."  [readability/todo] [2]

Raw Output:
onnxruntime/contrib_ops/webgpu/quantization/matmul_nbits.cc:586:  Missing username in TODO; it should look like "// TODO(my_username): Stuff."  [readability/todo] [2]
constexpr uint32_t workgroup_size = 128;
const uint32_t workgroup_y = N % 8 == 0 ? 8 : 1;
const uint32_t workgroup_x = workgroup_size / workgroup_y;
program.SetWorkgroupSize(workgroup_x, workgroup_y, 1);
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