From 87da7a74537c29b612f8078b468620d3cd2d4d7d Mon Sep 17 00:00:00 2001
From: Alexander Nesterov <nesterov.alexander@outlook.com>
Date: Tue, 17 Oct 2023 15:58:35 +0200
Subject: [PATCH] revert changes

---
 .../intel_cpu/src/nodes/executors/acl/acl_eltwise.cpp    | 9 +++++++++
 src/plugins/intel_cpu/src/plugin.cpp                     | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/plugins/intel_cpu/src/nodes/executors/acl/acl_eltwise.cpp b/src/plugins/intel_cpu/src/nodes/executors/acl/acl_eltwise.cpp
index eb8e8a2f2b4b08..f22004a0d3e154 100644
--- a/src/plugins/intel_cpu/src/nodes/executors/acl/acl_eltwise.cpp
+++ b/src/plugins/intel_cpu/src/nodes/executors/acl/acl_eltwise.cpp
@@ -10,6 +10,11 @@ namespace intel_cpu {
 
 using namespace arm_compute;
 
+static std::mutex & get_mtx_ifunc() {
+    static std::mutex mtx_ifunc;
+    return mtx_ifunc;
+}
+
 inline VectorDims reshape_sizes(VectorDims dims) {
     const size_t MAX_NUM_SHAPE = arm_compute::MAX_DIMS;
     VectorDims result_dims(MAX_NUM_SHAPE - 1);
@@ -495,6 +500,10 @@ bool AclEltwiseExecutor::init(const EltwiseAttrs &eltwiseAttrs, const std::vecto
             IE_THROW() << "Unsupported operation type for ACL Eltwise executor: " << static_cast<int>(aclEltwiseAttrs.algorithm);
     }
 
+    // We get a problem (seg. faults, data race etc) for eltwise operations when we use several configure(...) functions in parallel.
+    // We created issue about this problem here: https://github.com/ARM-software/ComputeLibrary/issues/1073
+    // TODO: change it when we will get an answer to our question in issue
+    std::lock_guard<std::mutex> _lock {get_mtx_ifunc()};
     ifunc = exec_func();
     return true;
 }
diff --git a/src/plugins/intel_cpu/src/plugin.cpp b/src/plugins/intel_cpu/src/plugin.cpp
index df03d01cd6a991..8bec3128476e4f 100644
--- a/src/plugins/intel_cpu/src/plugin.cpp
+++ b/src/plugins/intel_cpu/src/plugin.cpp
@@ -47,7 +47,7 @@ static std::mutex & get_mtx_acl() {
 }
 
 static std::shared_ptr<ov::intel_cpu::ACLScheduler> & get_acl_scheduler() {
-    static thread_local std::shared_ptr<ov::intel_cpu::ACLScheduler> acl_scheduler =
+    static std::shared_ptr<ov::intel_cpu::ACLScheduler> acl_scheduler =
             std::make_shared<ov::intel_cpu::ACLScheduler>();
     return acl_scheduler;
 }