diff --git a/clang/lib/DPCT/ASTTraversal.cpp b/clang/lib/DPCT/ASTTraversal.cpp
index 6224f1183290..4c9c98a26acc 100644
--- a/clang/lib/DPCT/ASTTraversal.cpp
+++ b/clang/lib/DPCT/ASTTraversal.cpp
@@ -6018,6 +6018,11 @@ void FunctionCallRule::runRule(const MatchFinder::MatchResult &Result) {
       }
       requestHelperFeatureForEnumNames(AttributeName);
 
+      if (AttributeName == "cudaDevAttrMaxSharedMemoryPerBlockOptin") {
+        report(CE->getBeginLoc(), Diagnostics::LOCAL_MEM_SIZE, false,
+               AttributeName);
+      }
+
       ReplStr += " = " + MapNames::getDpctNamespace() + "get_device(";
       ReplStr += StmtStrArg2;
       ReplStr += ").";
diff --git a/clang/lib/DPCT/MapNames.cpp b/clang/lib/DPCT/MapNames.cpp
index dd307b7d2f36..b8c0aeedc1e9 100644
--- a/clang/lib/DPCT/MapNames.cpp
+++ b/clang/lib/DPCT/MapNames.cpp
@@ -1295,6 +1295,9 @@ void MapNames::setExplicitNamespaceMap(
       {"cudaDevAttrComputeCapabilityMajor",
        std::make_shared<EnumNameRule>("get_major_version",
                                       HelperFeatureEnum::device_ext)},
+      {"cudaDevAttrMaxSharedMemoryPerBlockOptin",
+       std::make_shared<EnumNameRule>("get_local_mem_size",
+                                      HelperFeatureEnum::device_ext)},
       {"cudaDevAttrComputeCapabilityMinor",
        std::make_shared<EnumNameRule>("get_minor_version",
                                       HelperFeatureEnum::device_ext)},
diff --git a/clang/runtime/dpct-rt/include/dpct/device.hpp b/clang/runtime/dpct-rt/include/dpct/device.hpp
index d55ed31f74b0..b4fae4e4baff 100644
--- a/clang/runtime/dpct-rt/include/dpct/device.hpp
+++ b/clang/runtime/dpct-rt/include/dpct/device.hpp
@@ -512,6 +512,10 @@ class device_ext : public sycl::device {
     return get_device_info().get_global_mem_size();
   }
 
+  size_t get_local_mem_size() const {
+    return get_device_info().get_local_mem_size();
+  }
+
   /// Get the number of bytes of free and total memory on the SYCL device.
   /// \param [out] free_memory The number of bytes of free memory on the SYCL device.
   /// \param [out] total_memory The number of bytes of total memory on the SYCL device.
diff --git a/clang/test/dpct/device004.cu b/clang/test/dpct/device004.cu
index 5c198049adad..af5a48aa700f 100644
--- a/clang/test/dpct/device004.cu
+++ b/clang/test/dpct/device004.cu
@@ -30,6 +30,15 @@ int main() {
   // CHECK-NEXT: */
   // CHECK-NEXT: properties.uuid = uuid;
   properties.uuid = uuid;
+
+  // Figure out how much shared memory is available on the device.
+  int maxSharedBytes = 0;
+  int dev_id;
+  // CHECK:/*
+  // CHECK-NEXT:DPCT1019:{{[0-9]+}}: local_mem_size in SYCL is not a complete equivalent of cudaDevAttrMaxSharedMemoryPerBlockOptin in CUDA. You may need to adjust the code.
+  // CHECK-NEXT:*/
+  // CHECK-NEXT:maxSharedBytes = dpct::get_device(dev_id).get_local_mem_size();
+  cudaDeviceGetAttribute(&maxSharedBytes, cudaDevAttrMaxSharedMemoryPerBlockOptin, dev_id);
 }
 
 #define CHECK_INTERNAL(err)                                                    \