[CPU] Refactor CPU affinity and memory management (#39781)

Signed-off-by: jiang1.li <jiang1.li@intel.com>

csrc/cpu/torch_bindings.cpp

@@ -141,6 +141,8 @@ void compute_slot_mapping_kernel_impl(const torch::Tensor query_start_loc,
                                       torch::Tensor slot_mapping,
                                       const int64_t block_size);
 
+void init_cpu_memory_env(std::vector<int64_t> node_ids);
+
 namespace cpu_utils {
 void eagle_prepare_inputs_padded_kernel_impl(
     const torch::Tensor& cu_num_draft_tokens,
@@ -431,6 +433,8 @@ TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, ops) {
       "block_size) -> ()",
       &compute_slot_mapping_kernel_impl);
 
+  ops.def("init_cpu_memory_env(SymInt[] node_ids) -> ()", &init_cpu_memory_env);
+
   // Speculative decoding kernels
   ops.def(
       "eagle_prepare_inputs_padded_kernel_impl(Tensor cu_num_draft_tokens, "