diff --git a/.github/automation/build_aarch64.sh b/.github/automation/build_aarch64.sh
index 3b3b532ca7a..80f05c65685 100755
--- a/.github/automation/build_aarch64.sh
+++ b/.github/automation/build_aarch64.sh
@@ -35,7 +35,6 @@ ONEDNN_BUILD_GRAPH=${ONEDNN_BUILD_GRAPH:-"ON"}
 if [[ "$ONEDNN_ACTION" == "configure" ]]; then
     set -x
     cmake \
-        -G $CMAKE_GENERATOR \
         -Bbuild -S. \
         -DDNNL_AARCH64_USE_ACL=ON \
         -DONEDNN_BUILD_GRAPH=$ONEDNN_BUILD_GRAPH \
diff --git a/.github/automation/build_acl.sh b/.github/automation/build_acl.sh
index 466543a3c9d..444fa4d4f2c 100755
--- a/.github/automation/build_acl.sh
+++ b/.github/automation/build_acl.sh
@@ -42,7 +42,8 @@ if [[ "$ACL_ACTION" == "clone" ]]; then
     set +x
 elif [[ "$ACL_ACTION" == "configure" ]]; then
     set -x
-    cmake -S$ACL_ROOT_DIR -B$ACL_ROOT_DIR/build \
+    cmake \
+    -S$ACL_ROOT_DIR -B$ACL_ROOT_DIR/build \
 	-DARM_COMPUTE_OPENMP=$ACL_OPENMP \
 	-DARM_COMPUTE_CPPTHREADS=0 \
 	-DARM_COMPUTE_WERROR=0 \
diff --git a/.github/automation/common_aarch64.sh b/.github/automation/common_aarch64.sh
index d8c2b50d3d6..4d6dbf00500 100644
--- a/.github/automation/common_aarch64.sh
+++ b/.github/automation/common_aarch64.sh
@@ -18,19 +18,12 @@
 # *******************************************************************************
 
 # Common variables for aarch64 ci. Exports: 
-# CC, CXX, OS, MP
+# CC, CXX, OS
 
 set -o errexit -o pipefail -o noclobber
 
 export OS=$(uname)
 
-# Num threads on system.
-if [[ "$OS" == "Darwin" ]]; then
-    export MP="-j$(sysctl -n hw.ncpu)"
-elif [[ "$OS" == "Linux" ]]; then
-    export MP="-j$(nproc)"
-fi
-
 if [[ "$BUILD_TOOLSET" == "gcc" ]]; then
     export CC=gcc-${GCC_VERSION}
     export CXX=g++-${GCC_VERSION}
@@ -44,4 +37,3 @@ echo "OS: $OS"
 echo "Toolset: $BUILD_TOOLSET"
 echo "CC: $CC"
 echo "CXX: $CXX"
-echo "MP: $MP"
diff --git a/.github/automation/test_aarch64.sh b/.github/automation/test_aarch64.sh
index 0d2cc1c46f4..90c1438135b 100755
--- a/.github/automation/test_aarch64.sh
+++ b/.github/automation/test_aarch64.sh
@@ -41,7 +41,6 @@ if [[ "$OS" == "Linux" ]]; then
     fi
     SKIPPED_TEST_FAILURES+="|test_benchdnn_modeC_binary_ci_cpu"
     SKIPPED_TEST_FAILURES+="|test_benchdnn_modeC_binary_different_dt_ci_cpu"
-    SKIPPED_TEST_FAILURES+="|test_benchdnn_modeC_binary_different_dt_ci_cpu"
 
     SKIPPED_GRAPH_TEST_FAILURES+="|test_benchdnn_modeC_graph_ci_cpu"
     SKIPPED_GRAPH_TEST_FAILURES+="|cpu-graph-gqa-cpp"
@@ -51,20 +50,25 @@ if [[ "$OS" == "Linux" ]]; then
     SKIPPED_GRAPH_TEST_FAILURES+="|test_graph_unit_dnnl_large_partition_cpu"
 fi
 
-SKIPPED_TEST_FAILURES+="|${SKIPPED_GRAPH_TEST_FAILURES}"
+# Nightly failures
+SKIPPED_NIGHTLY_TEST_FAILURES="test_benchdnn_modeC_bnorm_all_blocked_cpu"
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_bnorm_regressions_cpu"
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_conv_int8_cpu"
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_graph_fusions_cpu"
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_matmul_sparse_gpu_cpu"
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_reorder_all_cpu"
 
-if [[ "$OS" == "Darwin" ]]; then
-    # Since macos does not build with OMP, we can use multiple ctest threads.
-    CTEST_MP=$MP
-elif [[ "$OS" == "Linux" ]]; then
-    if [[ "$ONEDNN_THREADING" == "OMP" ]]; then
-        # OMP is already multi-threaded. Let's not oversubscribe.
-        CTEST_MP=-j3
-    elif [[ "$ONEDNN_THREADING" == "SEQ" ]]; then
-        CTEST_MP=$MP
-    fi
+# * c7g failures. TODO: scope these to c7g only. Better yet, fix them.
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_binary_all_cpu"
+SKIPPED_NIGHTLY_TEST_FAILURES+="|test_benchdnn_modeC_graph_int8_cpu"
+
+SKIPPED_TEST_FAILURES+="|${SKIPPED_GRAPH_TEST_FAILURES}|${SKIPPED_NIGHTLY_TEST_FAILURES}"
+
+# Sequential (probably macOS) builds should use num proc parallelism.
+if [[ "$ONEDNN_THREADING" == "SEQ" ]]; then
+    export CTEST_PARALLEL_LEVEL=""
 fi
 
 set -x
-ctest $CTEST_MP --no-tests=error --output-on-failure -E "$SKIPPED_TEST_FAILURES"
+ctest --no-tests=error --output-on-failure -E "$SKIPPED_TEST_FAILURES"
 set +x
diff --git a/.github/workflows/ci-aarch64.yml b/.github/workflows/ci-aarch64.yml
index 4d7f11f0ca2..481a2a15cc8 100644
--- a/.github/workflows/ci-aarch64.yml
+++ b/.github/workflows/ci-aarch64.yml
@@ -129,6 +129,7 @@ jobs:
           ACL_THREADING: ${{ matrix.config.threading }}
           BUILD_TOOLSET: ${{ matrix.config.toolset }}
           CMAKE_BUILD_TYPE: ${{ matrix.config.build }}
+          CMAKE_GENERATOR: Ninja
           GCC_VERSION: 13
 
       - name: Build ACL
@@ -170,6 +171,7 @@ jobs:
         env:
           BUILD_TOOLSET: ${{ matrix.config.toolset }}
           CMAKE_BUILD_TYPE: ${{ matrix.config.build }}
+          CTEST_PARALLEL_LEVEL: 6
           DYLD_LIBRARY_PATH: ${{ github.workspace }}/ComputeLibrary/build
           ONEDNN_THREADING: ${{ matrix.config.threading }}
   # This job adds a check named "CI AArch64" that represents overall
diff --git a/.github/workflows/nightly-aarch64.yml b/.github/workflows/nightly-aarch64.yml
new file mode 100644
index 00000000000..5624b159b57
--- /dev/null
+++ b/.github/workflows/nightly-aarch64.yml
@@ -0,0 +1,132 @@
+# *******************************************************************************
+# Copyright 2024 Arm Limited and affiliates.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# *******************************************************************************
+
+name: "Nightly AArch64"
+
+on:
+  #* allow manual trigger of workflow when needed. Useful for a nightly.
+  workflow_dispatch:
+  schedule:
+    #* minute (0-59) hour (0-23) day (1-31) month (1-12)  day of the week (0 - 6)
+    #* cron jobs run on the default (main) branch.
+    #* set to run at 5am UCT
+  - cron: "0 5 * * *"
+
+#* Stop stale workflows, though we should never hit this unless it hangs for a whole day.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  build-and-test:
+    strategy:
+      matrix:
+        config: [
+          { name: c6g, label: ah-ubuntu_22_04-c6g_8x-100, threading: OMP, toolset: gcc, build: Release, testset: NIGHTLY },
+          { name: c7g, label: ah-ubuntu_22_04-c7g_8x-100, threading: OMP, toolset: gcc, build: Release, testset: NIGHTLY }
+        ]
+
+    name: ${{ matrix.config.name }}, ${{ matrix.config.toolset }}, ${{ matrix.config.threading }}, ${{ matrix.config.build }}
+    runs-on: ${{ matrix.config.label }}
+    steps:
+
+      - name: Checkout oneDNN
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: oneDNN
+
+      - name: Get latest CMake and Ninja
+        uses: lukka/get-cmake@8567b9d9b63052b8430ef30042e13c3ba5288f16 # v3.31.3
+        with:
+          cmakeVersion: 3.31.0
+          ninjaVersion: 1.12.0
+
+      - if: ${{ matrix.config.threading == 'OMP' }}
+        name: Install openmp
+        run: |
+          sudo apt install -y libomp-dev
+
+      - name: Install gcc
+        run: |
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
+          sudo apt update -y
+          sudo apt install -y g++-13
+
+      - name: Clone ACL
+        run: ${{ github.workspace }}/oneDNN/.github/automation/build_acl.sh
+        env:
+          ACL_ACTION: clone
+          ACL_ROOT_DIR: ${{ github.workspace }}/ComputeLibrary
+          ACL_VERSION: v24.11.1
+
+      - name: Configure ACL
+        run: ${{ github.workspace }}/oneDNN/.github/automation/build_acl.sh
+        env:
+          ACL_ACTION: configure
+          ACL_ROOT_DIR: ${{ github.workspace }}/ComputeLibrary
+          ACL_THREADING: ${{ matrix.config.threading }}
+          BUILD_TOOLSET: ${{ matrix.config.toolset }}
+          CMAKE_BUILD_TYPE: ${{ matrix.config.build }}
+          CMAKE_GENERATOR: Ninja
+          GCC_VERSION: 13
+
+      - name: Build ACL
+        run: ${{ github.workspace }}/oneDNN/.github/automation/build_acl.sh
+        env:
+          ACL_ACTION: build
+
+      - name: Configure oneDNN
+        run: ${{ github.workspace }}/oneDNN/.github/automation/build_aarch64.sh
+        working-directory: ${{ github.workspace }}/oneDNN
+        env:
+          ACL_ROOT_DIR: ${{ github.workspace }}/ComputeLibrary
+          BUILD_TOOLSET: ${{ matrix.config.toolset }}
+          CMAKE_BUILD_TYPE: ${{ matrix.config.build }}
+          CMAKE_GENERATOR: Ninja
+          GCC_VERSION: 13
+          ONEDNN_ACTION: configure
+          ONEDNN_TEST_SET: ${{ matrix.config.testset }}
+          ONEDNN_THREADING: ${{ matrix.config.threading }}
+
+      - name: Build oneDNN
+        run: ${{ github.workspace }}/oneDNN/.github/automation/build_aarch64.sh
+        working-directory: ${{ github.workspace }}/oneDNN
+        env:
+          ONEDNN_ACTION: build
+
+      - name: Run oneDNN tests
+        run: ${{ github.workspace }}/oneDNN/.github/automation/test_aarch64.sh
+        working-directory: ${{ github.workspace }}/oneDNN/build
+        env:
+          BUILD_TOOLSET: ${{ matrix.config.toolset }}
+          CMAKE_BUILD_TYPE: ${{ matrix.config.build }}
+          CTEST_PARALLEL_LEVEL: 8
+          DYLD_LIBRARY_PATH: ${{ github.workspace }}/ComputeLibrary/build
+          ONEDNN_THREADING: ${{ matrix.config.threading }}
+
+  #* This job adds a check named "Nightly AArch64" that represents overall
+  #* workflow status and can be used in branch rulesets
+  status:
+    needs: build-and-test
+    runs-on: ubuntu-latest
+    name: "Nightly AArch64"
+    steps:
+      - name: Print success
+        run: echo Success