[Refactor] Remove align block size logic in `moe_permute` (#33449)

Signed-off-by: yewentao256 <zhyanwentao@126.com>

benchmarks/kernels/benchmark_moe_permute_unpermute.py

@@ -44,10 +44,8 @@ def benchmark_permute(
     hidden_states = torch.randn(num_tokens, hidden_size, dtype=dtype)
     # output_hidden_states = torch.empty_like(hidden_states)
     if use_fp8_w8a8:
-        align_block_size = 128  # deepgemm needs 128 m aligned block
         qhidden_states, scale = _fp8_quantize(hidden_states, None, None)
     else:
-        align_block_size = None
         qhidden_states = hidden_states
 
     gating_output = torch.randn(num_iters, num_tokens, num_experts, dtype=torch.float32)
@@ -67,7 +65,6 @@ def benchmark_permute(
             topk_ids=topk_ids,
             n_expert=num_experts,
             expert_map=None,
-            align_block_size=align_block_size,
         )
 
     # JIT compilation & warmup
@@ -117,10 +114,8 @@ def benchmark_unpermute(
     # init_dtype = torch.float16 if use_fp8_w8a8 else dtype
     hidden_states = torch.randn(num_tokens, hidden_size, dtype=dtype)
     if use_fp8_w8a8:
-        align_block_size = 128  # deepgemm needs 128 m aligned block
         qhidden_states, scale = _fp8_quantize(hidden_states, None, None)
     else:
-        align_block_size = None
         qhidden_states = hidden_states
 
     input_gating = torch.randn(num_tokens, num_experts, dtype=torch.float32)
@@ -142,7 +137,6 @@ def benchmark_unpermute(
             topk_ids=topk_ids,
             n_expert=num_experts,
             expert_map=None,
-            align_block_size=align_block_size,
         )
         # convert to fp16/bf16 as gemm output
         return (

csrc/moe/moe_permute_unpermute_op.cu

@@ -14,12 +14,10 @@ void moe_permute(
     const torch::Tensor& token_expert_indices,       // [n_token, topk]
     const std::optional<torch::Tensor>& expert_map,  // [n_expert]
     int64_t n_expert, int64_t n_local_expert, int64_t topk,
-    const std::optional<int64_t>& align_block_size,
     torch::Tensor& permuted_input,             // [permuted_size, hidden]
     torch::Tensor& expert_first_token_offset,  // [n_local_expert + 1]
     torch::Tensor& inv_permuted_idx,           // [n_token, topk]
-    torch::Tensor& permuted_idx,               // [permute_size]
-    torch::Tensor& m_indices) {                // [align_expand_m]
+    torch::Tensor& permuted_idx) {             // [permute_size]
   TORCH_CHECK(expert_first_token_offset.scalar_type() == at::ScalarType::Long,
               "expert_first_token_offset must be int64");
   TORCH_CHECK(topk_ids.scalar_type() == at::ScalarType::Int,
@@ -34,8 +32,6 @@ void moe_permute(
               "token_expert_indices shape must be same as inv_permuted_idx");
   auto n_token = input.sizes()[0];
   auto n_hidden = input.sizes()[1];
-  auto align_block_size_value =
-      align_block_size.has_value() ? align_block_size.value() : -1;
   auto stream = at::cuda::getCurrentCUDAStream().stream();
   const long sorter_size =
       CubKeyValueSorter::getWorkspaceSize(n_token * topk, n_expert);
@@ -73,42 +69,15 @@ void moe_permute(
       get_ptr<int64_t>(expert_first_token_offset), n_token, n_expert,
       n_local_expert, topk, sorter, get_ptr<int>(sort_workspace), stream);
 
-  // DeepGEMM: use getMIndices kernel to compute
-  // 1) align_expert_first_token_offset (aligned prefix offsets)
-  // 2) m_indices (expert id for each aligned row)
-  // eg. expert0: 3, expert1: 5, expert2: 2 tokens respectively
-  // expert_first_token_offset = [0, 3, 8, 10], align_block_size = 4
-  // expert0: 3->4, expert1: 5->8, expert2: 2->4
-  // align_expert_first_token_offset = [0, 4, 12, 16]
-  // so m_indices = [0,0,0,0, 1,1,1,1,1,1,1,1, 2,2,2,2]
-  torch::Tensor align_expert_first_token_offset;
-  const int64_t* aligned_expert_first_token_offset_ptr = nullptr;
-  if (align_block_size.has_value()) {
-    align_expert_first_token_offset =
-        torch::zeros_like(expert_first_token_offset);
-    getMIndices(get_ptr<int64_t>(expert_first_token_offset),
-                get_ptr<int64_t>(align_expert_first_token_offset),
-                get_ptr<int>(m_indices), n_local_expert, align_block_size_value,
-                stream);
-    aligned_expert_first_token_offset_ptr =
-        get_ptr<int64_t>(align_expert_first_token_offset);
-  }
-
   // dispatch expandInputRowsKernelLauncher
   MOE_DISPATCH(input.scalar_type(), [&] {
     expandInputRowsKernelLauncher<scalar_t>(
         get_ptr<scalar_t>(input), get_ptr<scalar_t>(permuted_input),
         get_ptr<int>(permuted_experts_id), get_ptr<int>(sorted_row_idx),
         get_ptr<int>(inv_permuted_idx), get_ptr<int>(permuted_idx),
-        get_ptr<int64_t>(expert_first_token_offset),
-        aligned_expert_first_token_offset_ptr, n_token, valid_num_ptr, n_hidden,
-        topk, n_local_expert, align_block_size_value, stream);
+        get_ptr<int64_t>(expert_first_token_offset), n_token, valid_num_ptr,
+        n_hidden, topk, n_local_expert, stream);
   });
-
-  // this is only required for DeepGemm and not required for CUTLASS group gemm
-  if (align_block_size.has_value()) {
-    expert_first_token_offset.copy_(align_expert_first_token_offset);
-  }
 }
 
 void moe_unpermute(
@@ -201,16 +170,13 @@ void shuffle_rows(const torch::Tensor& input_tensor,
 
 #else
 
-void moe_permute(const torch::Tensor& input, const torch::Tensor& topk_weights,
-                 torch::Tensor& topk_ids,
+void moe_permute(const torch::Tensor& input, const torch::Tensor& topk_ids,
                  const torch::Tensor& token_expert_indices,
                  const std::optional<torch::Tensor>& expert_map,
                  int64_t n_expert, int64_t n_local_expert, int64_t topk,
-                 const std::optional<int64_t>& align_block_size,
                  torch::Tensor& permuted_input,
                  torch::Tensor& expert_first_token_offset,
-                 torch::Tensor& src_row_id2dst_row_id_map,
-                 torch::Tensor& m_indices) {
+                 torch::Tensor& inv_permuted_idx, torch::Tensor& permuted_idx) {
   TORCH_CHECK(false, "moe_permute is not supported on CUDA < 12.0");
 }
 

csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.cu

@@ -168,64 +168,4 @@ void preprocessTopkIdLauncher(int* topk_id_ptr, int size,
       topk_id_ptr, size, expert_map_ptr, num_experts);
 }
 
-template <bool ALIGN_BLOCK_SIZE>
-__global__ void getMIndicesKernel(int64_t* expert_first_token_offset,
-                                  int64_t* align_expert_first_token_offset,
-                                  int* m_indices, const int num_local_expert,
-                                  const int align_block_size) {
-  int eidx = blockIdx.x;
-  int tidx = threadIdx.x;
-  extern __shared__ int64_t smem_expert_first_token_offset[];
-  for (int i = tidx; i <= num_local_expert; i += blockDim.x) {
-    smem_expert_first_token_offset[i] = __ldg(expert_first_token_offset + i);
-  }
-  __syncthreads();
-  auto last_token_offset = smem_expert_first_token_offset[eidx + 1];
-  auto first_token_offset = smem_expert_first_token_offset[eidx];
-  int n_token_in_expert = last_token_offset - first_token_offset;
-
-  if constexpr (ALIGN_BLOCK_SIZE) {
-    n_token_in_expert = (n_token_in_expert + align_block_size - 1) /
-                        align_block_size * align_block_size;
-    // round up to ALIGN_BLOCK_SIZE
-    int64_t accumulate_align_offset = 0;
-    for (int i = 1; i <= eidx + 1; i++) {
-      int n_token = smem_expert_first_token_offset[i] -
-                    smem_expert_first_token_offset[i - 1];
-      accumulate_align_offset =
-          accumulate_align_offset + (n_token + align_block_size - 1) /
-                                        align_block_size * align_block_size;
-      if (i == eidx) {
-        first_token_offset = accumulate_align_offset;
-      }
-      // last block store align_expert_first_token_offset
-      if (eidx == num_local_expert - 1 && threadIdx.x == 0) {
-        align_expert_first_token_offset[i] = accumulate_align_offset;
-      }
-    }
-  }
-  for (int idx = tidx; idx < n_token_in_expert; idx += blockDim.x) {
-    // update m_indice with expert id
-    m_indices[first_token_offset + idx] = eidx;
-  }
-}
-
-void getMIndices(int64_t* expert_first_token_offset,
-                 int64_t* align_expert_first_token_offset, int* m_indices,
-                 int num_local_expert, const int align_block_size,
-                 cudaStream_t stream) {
-  int block = 256;
-  int grid = num_local_expert;
-  int smem_size = sizeof(int64_t) * (num_local_expert + 1);
-  if (align_block_size == -1) {
-    getMIndicesKernel<false><<<grid, block, smem_size, stream>>>(
-        expert_first_token_offset, align_expert_first_token_offset, m_indices,
-        num_local_expert, align_block_size);
-  } else {
-    getMIndicesKernel<true><<<grid, block, smem_size, stream>>>(
-        expert_first_token_offset, align_expert_first_token_offset, m_indices,
-        num_local_expert, align_block_size);
-  }
-}
-
 #endif

csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.h

@@ -60,10 +60,9 @@ void expandInputRowsKernelLauncher(
     T const* unpermuted_input, T* permuted_output, int* sorted_experts,
     int const* expanded_dest_row_to_expanded_source_row,
     int* expanded_source_row_to_expanded_dest_row, int* permuted_idx,
-    int64_t const* expert_first_token_offset,
-    int64_t const* aligned_expert_first_token_offset, int64_t const num_rows,
+    int64_t const* expert_first_token_offset, int64_t const num_rows,
     int64_t const* num_valid_tokens_ptr, int64_t const cols, int const k,
-    int num_local_experts, const int& align_block_size, cudaStream_t stream);
+    int num_local_experts, cudaStream_t stream);
 
 template <class T, class OutputType>
 void finalizeMoeRoutingKernelLauncher(
@@ -76,9 +75,4 @@ void preprocessTopkIdLauncher(int* topk_id_ptr, int size,
                               const int* expert_map_ptr, int num_experts,
                               cudaStream_t stream);
 
-void getMIndices(int64_t* expert_first_token_offset,
-                 int64_t* align_expert_first_token_offset, int* m_indices,
-                 int num_local_expert, const int align_block_size,
-                 cudaStream_t stream);
-
 #include "moe_permute_unpermute_kernel.inl"

csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.inl

 #pragma once
 
-template <typename T, bool CHECK_SKIPPED, bool ALIGN_BLOCK_SIZE>
+template <typename T, bool CHECK_SKIPPED>
 __global__ void expandInputRowsKernel(
     T const* unpermuted_input, T* permuted_output, int* sorted_experts,
     int const* expanded_dest_row_to_expanded_source_row,
     int* expanded_source_row_to_expanded_dest_row, int* permuted_idx,
-    int64_t const* expert_first_token_offset,
-    int64_t const* aligned_expert_first_token_offset, int64_t const num_rows,
+    int64_t const* expert_first_token_offset, int64_t const num_rows,
     int64_t const* num_dest_rows, int64_t const cols, int64_t k,
-    int num_local_experts, int align_block_size) {
+    int num_local_experts) {
   // Reverse permutation map.
   // I do this so that later, we can use the source -> dest map to do the k-way
   // reduction and unpermuting. I need the reverse map for that reduction to
@@ -19,24 +18,6 @@ __global__ void expandInputRowsKernel(
       expanded_dest_row_to_expanded_source_row[expanded_dest_row];
   int expert_id = sorted_experts[expanded_dest_row];
 
-  if constexpr (ALIGN_BLOCK_SIZE) {
-    // convert (unaligned) expanded_dest_row -> aligned expanded_dest_row.
-    // aligned_expert_first_token_offset[e] provides the aligned prefix start
-    // for expert e. For non-local experts we map to the end (total aligned M).
-    int64_t aligned_base = 0;
-    int64_t token_offset_in_expert = 0;
-    if (expert_id >= num_local_experts) {
-      aligned_base =
-          __ldg(aligned_expert_first_token_offset + num_local_experts);
-      token_offset_in_expert = 0;
-    } else {
-      aligned_base = __ldg(aligned_expert_first_token_offset + expert_id);
-      token_offset_in_expert =
-          expanded_dest_row - __ldg(expert_first_token_offset + expert_id);
-    }
-    expanded_dest_row = aligned_base + token_offset_in_expert;
-  }
-
   if (threadIdx.x == 0) {
     assert(expanded_dest_row <= INT32_MAX);
     expanded_source_row_to_expanded_dest_row[expanded_source_row] =
@@ -76,29 +57,25 @@ void expandInputRowsKernelLauncher(
     T const* unpermuted_input, T* permuted_output, int* sorted_experts,
     int const* expanded_dest_row_to_expanded_source_row,
     int* expanded_source_row_to_expanded_dest_row, int* permuted_idx,
-    int64_t const* expert_first_token_offset,
-    int64_t const* aligned_expert_first_token_offset, int64_t const num_rows,
+    int64_t const* expert_first_token_offset, int64_t const num_rows,
     int64_t const* num_valid_tokens_ptr, int64_t const cols, int const k,
-    int num_local_experts, const int& align_block_size, cudaStream_t stream) {
+    int num_local_experts, cudaStream_t stream) {
   int64_t const blocks = num_rows * k;
   int64_t const threads = 256;
-  using FuncPtr = decltype(&expandInputRowsKernel<T, true, true>);
-  FuncPtr func_map[2][2] = {
-      {&expandInputRowsKernel<T, false, false>,
-       &expandInputRowsKernel<T, false, true>},
-      {&expandInputRowsKernel<T, true, false>,
-       &expandInputRowsKernel<T, true, true>},
+  using FuncPtr = decltype(&expandInputRowsKernel<T, true>);
+  FuncPtr func_map[2] = {
+      &expandInputRowsKernel<T, false>,
+      &expandInputRowsKernel<T, true>,
   };
   bool is_check_skip = num_valid_tokens_ptr != nullptr;
-  bool is_align_block_size = align_block_size != -1;
-  auto func = func_map[is_check_skip][is_align_block_size];
+  auto func = func_map[is_check_skip];
 
   func<<<blocks, threads, 0, stream>>>(
       unpermuted_input, permuted_output, sorted_experts,
       expanded_dest_row_to_expanded_source_row,
       expanded_source_row_to_expanded_dest_row, permuted_idx,
-      expert_first_token_offset, aligned_expert_first_token_offset, num_rows,
-      num_valid_tokens_ptr, cols, k, num_local_experts, align_block_size);
+      expert_first_token_offset, num_rows, num_valid_tokens_ptr, cols, k,
+      num_local_experts);
 }
 
 template <class T, class U>

csrc/moe/torch_bindings.cpp

@@ -99,9 +99,9 @@ TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, m) {
       "moe_permute(Tensor input, Tensor topk_ids,"
       "Tensor token_expert_indices, Tensor? expert_map, int n_expert,"
       "int n_local_expert,"
-      "int topk, int? align_block_size,Tensor! permuted_input, Tensor! "
+      "int topk, Tensor! permuted_input, Tensor! "
       "expert_first_token_offset, Tensor! inv_permuted_idx, Tensor! "
-      "permuted_idx, Tensor! m_indices)->()");
+      "permuted_idx)->()");
 
   m.def(
       "moe_unpermute(Tensor permuted_hidden_states, Tensor topk_weights,"

tests/kernels/moe/test_moe_permute_unpermute.py

@@ -40,10 +40,8 @@ def torch_permute(
     n_local_expert: int,
     start_expert: int,
     expert_map: torch.Tensor | None = None,
-    align_block_size: int | None = None,
-    fill_invalid_expert: int = -1,
 ) -> list[torch.Tensor]:
-    n_token, n_hidden = hidden_states.shape[0], hidden_states.shape[1]
+    n_token = hidden_states.shape[0]
     if expert_map is not None:
         is_local_expert = expert_map[topk_ids] != -1
         not_local_expert = expert_map[topk_ids] == -1
@@ -70,16 +68,7 @@ def torch_permute(
 
     _, src2dst_idx = torch.sort(dst_row_id2src_row_id_map)
     valid_row_idx = []
-    if align_block_size is None:
     permuted_hidden_states = hidden_states[dst_row_id2src_row_id_map // topk, ...]
-        permuted_row_size = permuted_hidden_states.shape[0]
-        m_indices = torch.empty(
-            permuted_row_size, device="cuda", dtype=torch.int32
-        ).fill_(fill_invalid_expert)
-        for i in range(1, n_local_expert + 1):
-            first_token_offset = expert_first_token_offset[i - 1]
-            last_token_offset = expert_first_token_offset[i]
-            m_indices[first_token_offset:last_token_offset] = i - 1
     src_row_id2dst_row_id_map = torch.arange(
         0, n_token * topk, device="cuda", dtype=torch.int32
     )[src2dst_idx].reshape((n_token, topk))
@@ -90,85 +79,6 @@ def torch_permute(
         expert_first_token_offset,
         src_row_id2dst_row_id_map,
         dst_row_id2src_row_id_map,
-            m_indices,
-            valid_row_idx,
-        ]
-    else:
-        permuted_row_size = (
-            (topk * n_token + n_expert * (align_block_size - 1) + align_block_size - 1)
-            // align_block_size
-            * align_block_size
-        )
-        permuted_idx = torch.full(
-            (permuted_row_size,),
-            n_token * topk,
-            dtype=torch.int32,
-            device=hidden_states.device,
-        )
-        permuted_hidden_states = torch.empty(
-            (permuted_row_size, n_hidden), device="cuda", dtype=hidden_states.dtype
-        )
-        align_src_row_id2dst_row_id = torch.empty(
-            n_token * topk, device="cuda", dtype=torch.int32
-        )
-        align_expert_first_token_offset = torch.zeros_like(expert_first_token_offset)
-        m_indices = torch.empty(
-            permuted_row_size, device="cuda", dtype=torch.int32
-        ).fill_(fill_invalid_expert)
-        # get align_permuted_hidden_states,
-        # valid row_idx and align_expert_first_token_offset
-        for i in range(1, n_local_expert + 1):
-            first_token_offset = expert_first_token_offset[i - 1]
-            last_token_offset = expert_first_token_offset[i]
-            n_token_in_expert = last_token_offset - first_token_offset
-            align_expert_first_token_offset[i] = (
-                align_expert_first_token_offset[i - 1]
-                + (n_token_in_expert + align_block_size - 1)
-                // align_block_size
-                * align_block_size
-            )
-            align_first_token_offset = align_expert_first_token_offset[i - 1]
-            align_last_token_offset = align_expert_first_token_offset[i]
-            dst_row_id2src_row_id_in_expert = dst_row_id2src_row_id_map[
-                first_token_offset : first_token_offset + n_token_in_expert
-            ]
-            # store token in current expert with align_first_token_offset
-            permuted_hidden_states[
-                align_first_token_offset : align_first_token_offset + n_token_in_expert,
-                ...,
-            ] = hidden_states[dst_row_id2src_row_id_in_expert // topk, ...]
-            permuted_idx[
-                align_first_token_offset : align_first_token_offset + n_token_in_expert
-            ] = dst_row_id2src_row_id_in_expert
-            # set current expert m_indices
-            m_indices[align_first_token_offset:align_last_token_offset] = i - 1
-            valid_row_idx += [
-                i
-                for i in range(
-                    align_first_token_offset,
-                    align_first_token_offset + n_token_in_expert,
-                )
-            ]
-        # get align_src_row_id2dst_row_id
-        for i in range(n_token * topk):
-            eid = sorted_topk_ids[i]
-            if eid >= n_local_expert:
-                # check token not in local expert
-                align_src_row_id2dst_row_id[i] = align_expert_first_token_offset[-1]
-                continue
-            first_token_offset = expert_first_token_offset[eid]
-            align_first_token_offset = align_expert_first_token_offset[eid]
-            token_offset = i - first_token_offset
-            align_src_row_id2dst_row_id[i] = align_first_token_offset + token_offset
-        align_src_row_id2dst_row_id = align_src_row_id2dst_row_id[src2dst_idx].reshape(
-            (n_token, topk)
-        )
-        return [
-            permuted_hidden_states,
-            align_expert_first_token_offset,
-            align_src_row_id2dst_row_id,
-            permuted_idx,
-            m_indices,
         valid_row_idx,
     ]
 
@@ -207,7 +117,6 @@ def torch_unpermute(
 @pytest.mark.parametrize("topk", TOP_KS)
 @pytest.mark.parametrize("dtype", [torch.bfloat16])
 @pytest.mark.parametrize("ep_size", EP_SIZE)
-@pytest.mark.parametrize("align_block_size", [None, 128])
 def test_moe_permute_unpermute(
     n_token: int,
     n_hidden: int,
@@ -215,11 +124,9 @@ def test_moe_permute_unpermute(
     n_expert: int,
     ep_size: int,
     dtype: torch.dtype,
-    align_block_size: int | None,
 ):
     if not moe_permute_unpermute_supported():
         pytest.skip("moe_permute_unpermute is not supported on this platform.")
-    fill_invalid_expert = 0
     ep_rank = np.random.randint(0, ep_size)
     expert_map = None
     n_local_expert = n_expert
@@ -238,7 +145,6 @@ def test_moe_permute_unpermute(
         gold_expert_first_token_offset,
         gold_inv_permuted_idx,
         gold_permuted_idx,
-        gold_m_indices,
         valid_row_idx,
     ) = torch_permute(
         hidden_states,
@@ -249,8 +155,6 @@ def test_moe_permute_unpermute(
         n_local_expert,
         start_expert,
         expert_map=expert_map,
-        align_block_size=align_block_size,
-        fill_invalid_expert=fill_invalid_expert,
     )
 
     (
@@ -258,7 +162,7 @@ def test_moe_permute_unpermute(
         _,
         expert_first_token_offset,
         inv_permuted_idx,
-        m_indices,
+        _,
     ) = moe_permute(
         hidden_states=hidden_states,
         a1q_scale=None,
@@ -266,8 +170,6 @@ def test_moe_permute_unpermute(
         n_expert=n_expert,
         n_local_expert=n_local_expert,
         expert_map=expert_map,
-        align_block_size=align_block_size,
-        fill_invalid_expert=fill_invalid_expert,
     )
 
     # check expert_first_token_offset
@@ -278,11 +180,6 @@ def test_moe_permute_unpermute(
     torch.testing.assert_close(
         gold_inv_permuted_idx.flatten(), inv_permuted_idx, atol=0, rtol=0
     )
-    # check mindice
-    # current kernel usage assumes deepgemm requires align_block_size
-    # when it's not provided then we don't compute m_indices (for cutlass)
-    if align_block_size is not None:
-        torch.testing.assert_close(gold_m_indices, m_indices, atol=0, rtol=0)
 
     # check permuted_hidden_states, only valid token
     torch.testing.assert_close(

vllm/model_executor/layers/fused_moe/moe_permute_unpermute.py

@@ -11,8 +11,6 @@ def moe_permute(
     n_expert: int,
     n_local_expert: int = -1,
     expert_map: torch.Tensor | None = None,
-    align_block_size: int | None = None,
-    fill_invalid_expert: int = -1,
     permuted_hidden_states: torch.Tensor | None = None,
 ) -> tuple[torch.Tensor, torch.Tensor | None, torch.Tensor, torch.Tensor, torch.Tensor]:
     """
@@ -27,9 +25,6 @@ def moe_permute(
     - expert_map (Optional[torch.Tensor]):  A tensor mapping expert indices
         from the global expert space to the local expert space of the expert
         parallel shard.
-    - align_block_size (Optional[int]): align group gemm block size for deepgemm
-    - fill_invalid_expert(int): fill expert id in m_indices for invalid expert
-      to workaround DeepGemm unsupported -1 in m_indices
     - permuted_hidden_states (Optional[torch.Tensor]): Optional output tensor.
         If None, the output tensor will be created in this function.
     Returns:
@@ -37,12 +32,9 @@ def moe_permute(
     - a1q_scale (Optional[torch.Tensor]): permuted quant scale for hidden_states
         if original scale not per-tensor scaling
     - expert_first_token_offset (torch.Tensor): offset of the first token
-       of each expert for standard grouped gemm. if enable 'align_block_size'
-       expert_first_token_offset will align up to 'align_block_size'.
+       of each expert for standard grouped gemm.
     - inv_permuted_idx (torch.Tensor): idx map for moe_unpermute.
     - permuted_idx (torch.Tensor): idx map from hidden to permuted_hidden.
-    - m_indices: m_indices for grouped gemm in deepgemm,`m_indices[i]` records
-    the group which the j-th row of the LHS belong to.`
     """
     n_token, n_hidden = hidden_states.size()
     topk = topk_ids.size(1)
@@ -50,17 +42,6 @@ def moe_permute(
         "permue kernel need hidden dim align to 16B"
     )
     permuted_row_size = n_token * topk
-    if align_block_size is not None:
-        permuted_row_size = (
-            (
-                permuted_row_size
-                + n_expert * (align_block_size - 1)
-                + align_block_size
-                - 1
-            )
-            // align_block_size
-            * align_block_size
-        )
     if n_local_expert == -1:
         n_local_expert = n_expert
     if permuted_hidden_states is None:
@@ -78,12 +59,6 @@ def moe_permute(
         0, n_token * topk, dtype=torch.int32, device=hidden_states.device
     ).reshape((n_token, topk))
 
-    m_indices = torch.full(
-        (permuted_row_size,),
-        fill_invalid_expert,
-        dtype=torch.int32,
-        device=hidden_states.device,
-    )
     expert_first_token_offset = torch.empty(
         n_local_expert + 1, dtype=torch.int64, device=hidden_states.device
     )
@@ -105,12 +80,10 @@ def moe_permute(
         n_expert,
         n_local_expert,
         topk,
-        align_block_size,
         permuted_hidden_states,
         expert_first_token_offset,
         inv_permuted_idx,
         permuted_idx,
-        m_indices,
     )
 
     if a1q_scale is not None and a1q_scale.dim() > 1:
@@ -120,7 +93,7 @@ def moe_permute(
         a1q_scale,
         expert_first_token_offset,
         inv_permuted_idx.flatten(),
-        m_indices,
+        permuted_idx,
     )