[fix]解决编译错误

csrc/moe/moe_align_sum_kernels.cu

@@ -307,7 +307,7 @@ __global__ void ep_moe_align_block_size_kernel(scalar_t* __restrict__ topk_ids,
    * assigned to expert expert_index.
    */
   for (int i = start_idx; i < numel && i < start_idx + tokens_per_thread; ++i) {
-    expert_id = topk_ids[i];
+    int32_t expert_id = topk_ids[i];
     if (expert_id >= start_expert && expert_id < end_expert) {
       ++tokens_cnts[index(num_experts, threadIdx.x + 1, expert_id - start_expert)];
     }