diff --git a/extensions/csrc/common/dev_info_mgr.h b/extensions/csrc/common/dev_info_mgr.h
new file mode 100644
index 000000000..7570666ad
--- /dev/null
+++ b/extensions/csrc/common/dev_info_mgr.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <memory>
+
+#include "common/nvgpu_dev_info.h"
+#include "target.h"
+
+namespace colossalAI {
+namespace common {
+
+template <typename Ret>
+class DevInfoMgr final {
+ public:
+  static std::unique_ptr<Ret> GetDevInfo(int device_num) const {
+    return std::make_unique<Ret>(device_num);
+  }
+};
+
+}  // namespace common
+}  // namespace colossalAI
diff --git a/extensions/csrc/cuda/type_shim.h b/extensions/csrc/common/micros.h
similarity index 87%
rename from extensions/csrc/cuda/type_shim.h
rename to extensions/csrc/common/micros.h
index 7be3fab1b..c2241029f 100644
--- a/extensions/csrc/cuda/type_shim.h
+++ b/extensions/csrc/common/micros.h
@@ -9,7 +9,15 @@
 
 #include <ATen/ATen.h>
 
-#include "compat.h"
+#ifndef TORCH_CHECK
+#define TORCH_CHECK AT_CHECK
+#endif
+
+#ifdef VERSION_GE_1_3
+#define DATA_PTR data_ptr
+#else
+#define DATA_PTR data
+#endif
 
 #define DISPATCH_HALF_AND_BFLOAT(TYPE, NAME, ...)                     \
   switch (TYPE) {                                                     \
@@ -214,90 +222,3 @@
     AT_ERROR(#NAME, "not implemented for '", toString(GTYPE), toString(PTYPE), \
              "'");                                                             \
   }
-
-template <typename T>
-__device__ __forceinline__ T reduce_block_into_lanes(
-    T *x, T val, int lanes = 1,
-    bool share_result = false)  // lanes is intended to be <= 32.
-{
-  int tid = threadIdx.x + threadIdx.y * blockDim.x;
-  int blockSize =
-      blockDim.x * blockDim.y;  // blockSize is intended to be a multiple of 32.
-
-  if (blockSize >= 64) {
-    x[tid] = val;
-    __syncthreads();
-  }
-
-#pragma unroll
-  for (int i = (blockSize >> 1); i >= 64; i >>= 1) {
-    if (tid < i) x[tid] = x[tid] + x[tid + i];
-    __syncthreads();
-  }
-
-  T final;
-
-  if (tid < 32) {
-    if (blockSize >= 64)
-      final = x[tid] + x[tid + 32];
-    else
-      final = val;
-      // __SYNCWARP();
-
-#pragma unroll
-    for (int i = 16; i >= lanes; i >>= 1)
-      final = final + __shfl_down_sync(0xffffffff, final, i);
-  }
-
-  if (share_result) {
-    if (tid < lanes) x[tid] = final;  // EpilogueOp
-    // Make sure the smem result is visible to all warps.
-    __syncthreads();
-  }
-
-  return final;
-}
-
-template <typename T>
-__device__ __forceinline__ T reduce_block_into_lanes_max_op(
-    T *x, T val, int lanes = 1,
-    bool share_result = false)  // lanes is intended to be <= 32.
-{
-  int tid = threadIdx.x + threadIdx.y * blockDim.x;
-  int blockSize =
-      blockDim.x * blockDim.y;  // blockSize is intended to be a multiple of 32.
-
-  if (blockSize >= 64) {
-    x[tid] = val;
-    __syncthreads();
-  }
-
-#pragma unroll
-  for (int i = (blockSize >> 1); i >= 64; i >>= 1) {
-    if (tid < i) x[tid] = fmaxf(fabsf(x[tid]), fabsf(x[tid + i]));
-    __syncthreads();
-  }
-
-  T final;
-
-  if (tid < 32) {
-    if (blockSize >= 64)
-      final = fmaxf(fabsf(x[tid]), fabsf(x[tid + 32]));
-    else
-      final = val;
-      // __SYNCWARP();
-
-#pragma unroll
-    for (int i = 16; i >= lanes; i >>= 1)
-      final =
-          fmaxf(fabsf(final), fabsf(__shfl_down_sync(0xffffffff, final, i)));
-  }
-
-  if (share_result) {
-    if (tid < lanes) x[tid] = final;  // EpilogueOp
-    // Make sure the smem result is visible to all warps.
-    __syncthreads();
-  }
-
-  return final;
-}
diff --git a/extensions/csrc/cuda/include/mp_type_traits.h b/extensions/csrc/common/mp_type_traits.h
similarity index 75%
rename from extensions/csrc/cuda/include/mp_type_traits.h
rename to extensions/csrc/common/mp_type_traits.h
index 6b3ae9c1b..8ede2d448 100644
--- a/extensions/csrc/cuda/include/mp_type_traits.h
+++ b/extensions/csrc/common/mp_type_traits.h
@@ -2,10 +2,10 @@
 
 #include <ATen/ATen.h>
 
-#include "../type_shim.h"
+#include "micros.h"
 
-namespace infer {
-namespace dtype {
+namespace colossalAI {
+namespace common {
 
 template <typename T>
 class MPTypeTrait {
@@ -31,5 +31,5 @@ class MPTypeTrait<at::BFloat16> {
   using Type = float;
 };
 
-}  // namespace dtype
-}  // namespace infer
+}  // namespace common
+}  // namespace colossalAI
diff --git a/extensions/csrc/common/target.h b/extensions/csrc/common/target.h
new file mode 100644
index 000000000..1c8a508e3
--- /dev/null
+++ b/extensions/csrc/common/target.h
@@ -0,0 +1,134 @@
+#pragma once
+
+#include <exception>
+#include <iostream>
+#include <string>
+
+namespace colossalAI {
+namespace common {
+
+class Target {
+ public:
+  enum class OS : int {
+    Unk = -1,
+    Linux,
+    Windows,
+  };
+  enum class Arch : int {
+    Unk = -1,
+    X86,
+    Arm,
+    NVGPU,
+    AMDGPU,
+    Ascend,
+  };
+  enum class BitLen : int {
+    Unk = -1,
+    k32,
+    k64,
+  };
+
+  explicit Target(OS os, Arch arch, BitLen bitlen)
+      : os_(os), arch_(arch), bitlen_(bitlen) {}
+
+  bool defined() const {
+    return (os_ != OS::Unk) && (arch_ != Arch::Unk) && (bitlen_ != BitLen::Unk);
+  }
+
+  std::string str() const {
+    std::string s{"OS: "};
+    switch (os_) {
+      case OS::Unk:
+        s += "Unk";
+        break;
+      case OS::Linux:
+        s += "Linux";
+        break;
+      case OS::Windows:
+        s += "Windows";
+        break;
+      default:
+        throw std::invalid_argument("Invalid OS type!");
+    }
+    s += "\t";
+    s += "Arch: ";
+
+    switch (arch_) {
+      case Arch::Unk:
+        s += "Unk";
+        break;
+      case Arch::X86:
+        s += "X86";
+        break;
+      case Arch::Arm:
+        s += "Arm";
+        break;
+      case Arch::NVGPU:
+        s += "NVGPU";
+        break;
+      case Arch::AMDGPU:
+        s += "AMDGPU";
+        break;
+      case Arch::Ascend:
+        s += "Ascend";
+        break;
+      default:
+        throw std::invalid_argument("Invalid Arch type!");
+    }
+    s += "\t";
+    s += "BitLen: ";
+
+    switch (bitlen_) {
+      case BitLen::Unk:
+        s += "Unk";
+        break;
+      case BitLen::k32:
+        s += "k32";
+        break;
+      case BitLen::k64:
+        s += "k64";
+        break;
+      default:
+        throw std::invalid_argument("Invalid target bit length!");
+    }
+
+    return s;
+  }
+
+  OS os() const { return os_; }
+  Arch arch() const { return arch_; }
+  BitLen bitlen() const { return bitlen_; }
+
+  static Target DefaultX86Target();
+  static Target DefaultArmTarget();
+  static Target DefaultRocmTarget();
+  static Target DefaultAscendTarget();
+
+  static Target DefaultCUDATarget() {
+    return Target(OS::Linux, Arch::CUDA, BitLen::k64);
+  }
+
+  friend std::ostream& operator<<(std::ostream& os, const Target& target);
+  friend bool operator==(const Target& lhs, const Target& rhs);
+  friend bool operator!=(const Target& lhs, const Target& rhs);
+
+ private:
+  OS os_{OS::Unk};
+  Arch arch_{Arch::Unk};
+  BitLen bitlen_{BitLen::Unk};
+};
+
+std::ostream& operator<<(std::ostream& os, const Target& target) {
+  std::cout << target.str() << std::endl;
+}
+bool operator==(const Target& lhs, const Target& rhs) {
+  return (lhs.os_ == rhs.os_) && (lhs.arch_ == rhs.arch_) &&
+         (lhs.bitlen_ == rhs.bitlen_);
+}
+bool operator!=(const Target& lhs, const Target& rhs) {
+  return (lhs.os_ != rhs.os_) && (lhs.arch_ != rhs.arch_) &&
+         (lhs.bitlen_ != rhs.bitlen_);
+}
+
+}  // namespace common
+}  // namespace colossalAI
diff --git a/extensions/csrc/cuda/activation_kernel.cu b/extensions/csrc/cuda/activation_kernel.cu
index 4121b67fc..5213a2313 100644
--- a/extensions/csrc/cuda/activation_kernel.cu
+++ b/extensions/csrc/cuda/activation_kernel.cu
@@ -2,13 +2,13 @@
 #include <torch/extension.h>
 #include <stdio.h>
 
-#include "type_shim.h"
-#include "include/mp_type_traits.h"
+#include "../common/micros.h"
+#include "../common/mp_type_traits.h"
 
 template<typename T>
 __device__ __forceinline__ T silu_kernel(const T& x) {
   // x * sigmoid(x)
-  using MT = typename infer::dtype::MPTypeTrait<T>::Type;
+  using MT = typename colossalAI::common::MPTypeTrait<T>::Type;
   return static_cast<T>((static_cast<MT>(x)) / (static_cast<MT>(1.0f) + expf(static_cast<MT>(-x))));
 }
 
@@ -17,7 +17,7 @@ __global__ void act_and_mul_kernel(
   const scalar_t* __restrict__ ins_data,
   scalar_t* __restrict__ outs_data,
   const int64_t numel) {
-  using MT = typename infer::dtype::MPTypeTrait<scalar_t>::Type;
+  using MT = typename colossalAI::common::MPTypeTrait<scalar_t>::Type;
 
   int64_t idx = static_cast<int64_t>(threadIdx.x) + static_cast<int64_t>(blockIdx.x) * static_cast<int64_t>(blockDim.x);
   const int64_t grid_size = blockDim.x * gridDim.x;
diff --git a/extensions/csrc/cuda/compat.h b/extensions/csrc/cuda/compat.h
index a62beef91..e69de29bb 100644
--- a/extensions/csrc/cuda/compat.h
+++ b/extensions/csrc/cuda/compat.h
@@ -1,10 +0,0 @@
-// modified from https://github.com/NVIDIA/apex/blob/master/csrc/compat.h
-#ifndef TORCH_CHECK
-#define TORCH_CHECK AT_CHECK
-#endif
-
-#ifdef VERSION_GE_1_3
-#define DATA_PTR data_ptr
-#else
-#define DATA_PTR data
-#endif
diff --git a/extensions/csrc/cuda/decode_kv_cache_memcpy_kernel.cu b/extensions/csrc/cuda/decode_kv_cache_memcpy_kernel.cu
index 86db90c8b..15e613e35 100644
--- a/extensions/csrc/cuda/decode_kv_cache_memcpy_kernel.cu
+++ b/extensions/csrc/cuda/decode_kv_cache_memcpy_kernel.cu
@@ -2,7 +2,7 @@
 #include <torch/extension.h>
 #include <stdio.h>
 
-#include "type_shim.h"
+#include "../common/micros.h"
 
 template<typename scalar_t>
 __global__ void decode_kv_cache_memcpy_kernel(
diff --git a/extensions/csrc/cuda/include/block_reduce.h b/extensions/csrc/cuda/include/block_reduce.h
index 38103c173..86409136b 100644
--- a/extensions/csrc/cuda/include/block_reduce.h
+++ b/extensions/csrc/cuda/include/block_reduce.h
@@ -310,3 +310,90 @@ __inline__ __device__ void blockReduce<ReduceType::kMax, 4>(float *pval) {
   }
   warpReduce<ReduceType::kMax, num>(pval);
 }
+
+template <typename T>
+__device__ __forceinline__ T reduce_block_into_lanes(
+    T *x, T val, int lanes = 1,
+    bool share_result = false)  // lanes is intended to be <= 32.
+{
+  int tid = threadIdx.x + threadIdx.y * blockDim.x;
+  int blockSize =
+      blockDim.x * blockDim.y;  // blockSize is intended to be a multiple of 32.
+
+  if (blockSize >= 64) {
+    x[tid] = val;
+    __syncthreads();
+  }
+
+#pragma unroll
+  for (int i = (blockSize >> 1); i >= 64; i >>= 1) {
+    if (tid < i) x[tid] = x[tid] + x[tid + i];
+    __syncthreads();
+  }
+
+  T final;
+
+  if (tid < 32) {
+    if (blockSize >= 64)
+      final = x[tid] + x[tid + 32];
+    else
+      final = val;
+      // __SYNCWARP();
+
+#pragma unroll
+    for (int i = 16; i >= lanes; i >>= 1)
+      final = final + __shfl_down_sync(0xffffffff, final, i);
+  }
+
+  if (share_result) {
+    if (tid < lanes) x[tid] = final;  // EpilogueOp
+    // Make sure the smem result is visible to all warps.
+    __syncthreads();
+  }
+
+  return final;
+}
+
+template <typename T>
+__device__ __forceinline__ T reduce_block_into_lanes_max_op(
+    T *x, T val, int lanes = 1,
+    bool share_result = false)  // lanes is intended to be <= 32.
+{
+  int tid = threadIdx.x + threadIdx.y * blockDim.x;
+  int blockSize =
+      blockDim.x * blockDim.y;  // blockSize is intended to be a multiple of 32.
+
+  if (blockSize >= 64) {
+    x[tid] = val;
+    __syncthreads();
+  }
+
+#pragma unroll
+  for (int i = (blockSize >> 1); i >= 64; i >>= 1) {
+    if (tid < i) x[tid] = fmaxf(fabsf(x[tid]), fabsf(x[tid + i]));
+    __syncthreads();
+  }
+
+  T final;
+
+  if (tid < 32) {
+    if (blockSize >= 64)
+      final = fmaxf(fabsf(x[tid]), fabsf(x[tid + 32]));
+    else
+      final = val;
+      // __SYNCWARP();
+
+#pragma unroll
+    for (int i = 16; i >= lanes; i >>= 1)
+      final =
+          fmaxf(fabsf(final), fabsf(__shfl_down_sync(0xffffffff, final, i)));
+  }
+
+  if (share_result) {
+    if (tid < lanes) x[tid] = final;  // EpilogueOp
+    // Make sure the smem result is visible to all warps.
+    __syncthreads();
+  }
+
+  return final;
+}
diff --git a/extensions/csrc/cuda/layer_norm_cuda.cpp b/extensions/csrc/cuda/layer_norm_cuda.cpp
index 15a07bb0c..3439e5e71 100644
--- a/extensions/csrc/cuda/layer_norm_cuda.cpp
+++ b/extensions/csrc/cuda/layer_norm_cuda.cpp
@@ -7,7 +7,7 @@
 #include <cassert>
 #include <vector>
 
-#include "compat.h"
+#include "../common/micros.h"
 
 namespace {
 
diff --git a/extensions/csrc/cuda/layer_norm_cuda_kernel.cu b/extensions/csrc/cuda/layer_norm_cuda_kernel.cu
index 72b84d6ca..17d5b10f4 100644
--- a/extensions/csrc/cuda/layer_norm_cuda_kernel.cu
+++ b/extensions/csrc/cuda/layer_norm_cuda_kernel.cu
@@ -9,7 +9,7 @@
 #include "ATen/AccumulateType.h"
 #include "ATen/cuda/CUDAContext.h"
 #include "ATen/cuda/DeviceUtils.cuh"
-#include "type_shim.h"
+#include "../common/micros.h"
 
 template <typename U>
 __device__ void cuWelfordOnlineSum(const U curr, U& mu, U& sigma2, U& count) {
diff --git a/extensions/csrc/cuda/multi_tensor_adam.cu b/extensions/csrc/cuda/multi_tensor_adam.cu
index 9cc3ae1ea..b7793b364 100644
--- a/extensions/csrc/cuda/multi_tensor_adam.cu
+++ b/extensions/csrc/cuda/multi_tensor_adam.cu
@@ -15,7 +15,7 @@
 #include <assert.h>
 
 #include "multi_tensor_apply.cuh"
-#include "type_shim.h"
+#include "../common/micros.h"
 
 #define BLOCK_SIZE 512
 #define ILP 4
diff --git a/extensions/csrc/cuda/multi_tensor_apply.cuh b/extensions/csrc/cuda/multi_tensor_apply.cuh
index ec55dd320..01a858661 100644
--- a/extensions/csrc/cuda/multi_tensor_apply.cuh
+++ b/extensions/csrc/cuda/multi_tensor_apply.cuh
@@ -12,7 +12,7 @@
 #include <assert.h>
 #include <c10/cuda/CUDAGuard.h>
 
-#include "compat.h"
+#include "../common/micros.h"
 
 // #include <iostream>
 
diff --git a/extensions/csrc/cuda/multi_tensor_l2norm_kernel.cu b/extensions/csrc/cuda/multi_tensor_l2norm_kernel.cu
index 85f935152..57a79f7a8 100644
--- a/extensions/csrc/cuda/multi_tensor_l2norm_kernel.cu
+++ b/extensions/csrc/cuda/multi_tensor_l2norm_kernel.cu
@@ -11,7 +11,8 @@
 #include <assert.h>
 
 #include "multi_tensor_apply.cuh"
-#include "type_shim.h"
+#include "../common/micros.h"
+#include "include/block_reduce.h"
 
 #define BLOCK_SIZE 512
 #define ILP 4
diff --git a/extensions/csrc/cuda/multi_tensor_lamb.cu b/extensions/csrc/cuda/multi_tensor_lamb.cu
index 63771cf40..50dfc56bc 100644
--- a/extensions/csrc/cuda/multi_tensor_lamb.cu
+++ b/extensions/csrc/cuda/multi_tensor_lamb.cu
@@ -10,7 +10,7 @@
 #include <assert.h>
 
 #include "multi_tensor_apply.cuh"
-#include "type_shim.h"
+#include "../common/micros.h"
 
 #define BLOCK_SIZE 512
 #define ILP 4
diff --git a/extensions/csrc/cuda/multi_tensor_scale_kernel.cu b/extensions/csrc/cuda/multi_tensor_scale_kernel.cu
index 2f58a0f16..0dec1d5d1 100644
--- a/extensions/csrc/cuda/multi_tensor_scale_kernel.cu
+++ b/extensions/csrc/cuda/multi_tensor_scale_kernel.cu
@@ -10,7 +10,7 @@
 #include <sstream>
 
 #include "multi_tensor_apply.cuh"
-#include "type_shim.h"
+#include "../common/micros.h"
 
 #define BLOCK_SIZE 512
 #define ILP 4
diff --git a/extensions/csrc/cuda/multi_tensor_sgd_kernel.cu b/extensions/csrc/cuda/multi_tensor_sgd_kernel.cu
index 7f48dbd5d..d0cf786f8 100644
--- a/extensions/csrc/cuda/multi_tensor_sgd_kernel.cu
+++ b/extensions/csrc/cuda/multi_tensor_sgd_kernel.cu
@@ -7,7 +7,7 @@
 #include <assert.h>
 #include <cuda_runtime.h>
 
-#include "compat.h"
+#include "../common/micros.h"
 #include "multi_tensor_apply.cuh"
 
 #define BLOCK_SIZE 512
diff --git a/extensions/csrc/cuda/scaled_masked_softmax_cuda.cu b/extensions/csrc/cuda/scaled_masked_softmax_cuda.cu
index 41781ebc7..2f968d30f 100644
--- a/extensions/csrc/cuda/scaled_masked_softmax_cuda.cu
+++ b/extensions/csrc/cuda/scaled_masked_softmax_cuda.cu
@@ -10,7 +10,7 @@
 #include <torch/extension.h>
 
 #include "scaled_masked_softmax.h"
-#include "type_shim.h"
+#include "../common/micros.h"
 
 namespace multihead_attn {
 namespace fused_softmax {
diff --git a/extensions/csrc/cuda/scaled_upper_triang_masked_softmax_cuda.cu b/extensions/csrc/cuda/scaled_upper_triang_masked_softmax_cuda.cu
index 62c56e6f7..d9550dc2c 100644
--- a/extensions/csrc/cuda/scaled_upper_triang_masked_softmax_cuda.cu
+++ b/extensions/csrc/cuda/scaled_upper_triang_masked_softmax_cuda.cu
@@ -10,7 +10,7 @@
 #include <torch/extension.h>
 
 #include "scaled_upper_triang_masked_softmax.h"
-#include "type_shim.h"
+#include "../common/micros.h"
 
 namespace multihead_attn {
 namespace fused_softmax {
diff --git a/extensions/csrc/cuda/utils/gpu_launch_config.h b/extensions/csrc/cuda/utils/gpu_launch_config.h
new file mode 100644
index 000000000..c7481323a
--- /dev/null
+++ b/extensions/csrc/cuda/utils/gpu_launch_config.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <cuda.h>
+#include <cuda_runtime.h>
+
+namespace colossalAI {
+namespace cuda {
+namespace utils {
+
+GPULaunchConfig GPUGetGPULaunchConfig1D(int64_t numel, int vec_size);
+
+// TODO(LiuYang): to be implemented
+GPULaunchConfig GPUGetGPULaunchConfig2D(int64_t numel, int vec_size);
+
+// TODO(LiuYang): to be implemented
+GPULaunchConfig GPUGetGPULaunchConfig3D(int64_t numel, int vec_size);
+
+class GPULaunchConfig {
+ public:
+  GPULaunchConfig(){};
+  GPULaunchConfig(const dim3& block, const dim3& grid)
+      : block_(block), grid_(grid) {}
+  friend GPULaunchConfig GPUGetGPULaunchConfig1D(int64_t numel, int vec_size);
+
+ protected:
+  void set_block(const dim3& dim) { block_ = dim; }
+  void set_grid(const dim3& dim) { grid_ = dim; }
+
+ private:
+  dim3 block_(1, 1, 1);
+  dim3 grid_(1, 1, 1);
+}
+
+}  // namespace utils
+}  // namespace cuda
+}  // namespace colossalAI
diff --git a/extensions/csrc/cuda/utils/micros.h b/extensions/csrc/cuda/utils/micros.h
new file mode 100644
index 000000000..9b410e3d8
--- /dev/null
+++ b/extensions/csrc/cuda/utils/micros.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <cuda.h>
+#include <cuda_runtime.h>
+
+#define CUDA_CHECK(func)                                           \
+  {                                                                \
+    auto status = func;                                            \
+    if (status != cudaSuccess) {                                   \
+      LOG(FATAL) << "CUDA Error : " << cudaGetErrorString(status); \
+    }                                                              \
+  }
diff --git a/extensions/csrc/cuda/utils/nvgpu_dev_info.cc b/extensions/csrc/cuda/utils/nvgpu_dev_info.cc
new file mode 100644
index 000000000..e52abebff
--- /dev/null
+++ b/extensions/csrc/cuda/utils/nvgpu_dev_info.cc
@@ -0,0 +1,45 @@
+#include "nvgpu_dev_info.h"
+
+#include <array>
+
+namespace colossalAI {
+namespace cuda {
+namespace utils {
+
+std::array<int, 3> NVGPUDevInfo::GetMaxGridDims() const {
+  std::array<int, 3> ret;
+  ret[0] = prop_->maxGridSize[0];
+  ret[1] = prop_->maxGridSize[1];
+  ret[2] = prop_->maxGridSize[2];
+  return ret;
+}
+
+std::array<int, 3> NVGPUDevInfo::GetMaxBlockDims() const {
+  std::array<int, 3> ret;
+  ret[0] = prop_->maxThreadsDim[0];
+  ret[1] = prop_->maxThreadsDim[1];
+  ret[2] = prop_->maxThreadsDim[2];
+  return ret;
+}
+
+std::array<int, 2> NVGPUDevInfo::GetCapability() const {
+  std::array<int, 2> ret;
+  ret[0] = prop_.major;
+  ret[1] = prop_.minor;
+}
+
+int NVGPUDevInfo::GetMultiProcessorCount() const {
+  return prop_->multiProcessorCount;
+}
+
+int NVGPUDevInfo::GetMaxThreadsPerMultiProcessor() const {
+  return prop_->maxThreadsPerMultiProcessor;
+}
+
+int NVGPUDevInfo::GetMaxThreadsPerBlock() const {
+  return prop_->maxThreadsPerBlock;
+}
+
+}  // namespace utils
+}  // namespace cuda
+}  // namespace colossalAI
diff --git a/extensions/csrc/cuda/utils/nvgpu_dev_info.h b/extensions/csrc/cuda/utils/nvgpu_dev_info.h
new file mode 100644
index 000000000..c8c67c908
--- /dev/null
+++ b/extensions/csrc/cuda/utils/nvgpu_dev_info.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <cuda.h>
+#include <cuda_runtime.h>
+
+#include <ostream>
+#include <string>
+#include <vector>
+
+#include "micros.h"
+#include "target.h"
+
+namespace colossalAI {
+namespace cuda {
+namespace utils {
+
+class NVGPUDevInfo {
+ public:
+  explicit NVGPUDevInfo(int device_num) : device_num_(device_num) {
+    CUDA_CALL(cudaGetDeviceProperties(prop_, device));
+  }
+
+  std::array<int, 3> GetMaxGridDims() const;
+  std::array<int, 3> GetMaxBlockDims() const;
+  std::array<int, 2> GetCapability() const;
+  int GetMultiProcessorCount() const;
+  int GetMaxThreadsPerMultiProcessor() const;
+  int GetMaxThreadsPerBlock() const;
+
+ private:
+  int device_num_;
+  cudaDeviceProp* prop_;
+};
+
+}  // namespace utils
+}  // namespace cuda
+}  // namespace colossalAI