[BUGFIX] Fix accuracy issue due to reuse of primitives for MKLDNN-AArch64. Fixes #20265.

CMakeLists.txt

@@ -307,6 +307,7 @@ if(USE_MKLDNN)
       # Also ACL_ROOT_DIR need to be set
       set(CMAKE_CXX_STANDARD 14)
       set(DNNL_AARCH64_USE_ACL ON CACHE INTERNAL "" FORCE)
+      add_definitions(-DDNNL_AARCH64_USE_ACL=1)
     endif()
     if (MKLDNN_USE_APL)
       # APL needs to be added to LD_LIBRARY_PATH

CONTRIBUTORS.md

@@ -255,6 +255,7 @@ List of Contributors
 * [Zhaoqi Zhu](https://github.com/zha0q1)
 * [Harshit Sharma](https://github.com/harshitshrma)
 * [Andrzej Kotlowski](https://github.com/anko-intel)
+* [Crefeda Faviola Rodrigues](https://github.com/cfRod)
 
 Label Bot
 ---------

src/operator/operator_common.h

@@ -620,6 +620,12 @@ class OpSignature {
       hash = hash * 2 + arr.dtype();
       eles.push_back(arr.dtype());
       AddSign(arr.shape());
+// Note:Temporary workaround for the accuracy issue noted here #20265.
+// Future releases of Compute Library will aim to fix this.
+#if DNNL_AARCH64_USE_ACL == 1
+      auto ival = reinterpret_cast<const uint64_t>(arr.storage_handle().dptr);
+      AddSign(ival);
+#endif
 #if MXNET_USE_MKLDNN == 1
     }
 #endif
@@ -643,6 +649,11 @@ class OpSignature {
     eles.push_back(val);
   }
 
+  void AddSign(uint64_t val) {
+    hash = hash * 2 + val;
+    eles.push_back(val);
+  }
+
   void AddSign(float val) {
     hash = dmlc::HashCombine(hash, val);
     eles.push_back(val);