[xgboost] Adds xgboost aarch64 support (#2659)

.github/workflows/native_s3_xgboost.yml

@@ -0,0 +1,79 @@
+name: Native S3 XGBoost
+
+on:
+  workflow_dispatch:
+    xgb_version:
+      description: 'xgboost version'
+      required: false
+
+jobs:
+  create-aarch64-runner:
+    if: github.repository == 'deepjavalibrary/djl'
+    runs-on: [ self-hosted, scheduler ]
+    steps:
+      - name: Create new Graviton instance
+        id: create_aarch64
+        run: |
+          cd /home/ubuntu/djl_benchmark_script/scripts
+          token=$( curl -X POST -H "Authorization: token ${{ secrets.ACTION_RUNNER_PERSONAL_TOKEN }}" \
+          https://api.github.com/repos/deepjavalibrary/djl/actions/runners/registration-token \
+          --fail \
+          | jq '.token' | tr -d '"' )
+          ./start_instance.sh action_graviton $token djl
+    outputs:
+      aarch64_instance_id: ${{ steps.create_aarch64.outputs.action_graviton_instance_id }}
+
+  build-xgboost-jni-aarch64:
+    runs-on: [ self-hosted, aarch64 ]
+    container: centos:7
+    timeout-minutes: 30
+    needs: create-aarch64-runner
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Environment
+        run: |
+          yum -y update
+          yum -y install centos-release-scl-rh epel-release
+          yum -y install devtoolset-7 git patch libstdc++-static curl python3-devel
+          curl -L -o cmake.tar.gz https://github.com/Kitware/CMake/releases/download/v3.27.0-rc2/cmake-3.27.0-rc2-linux-aarch64.tar.gz
+          tar xvfz cmake.tar.gz
+          ln -sf $PWD/cmake-3.*/bin/cmake /usr/bin/cmake
+          cmake --version
+          pip3 install awscli --upgrade
+      - name: Set up JDK 11
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'corretto'
+          java-version: 11
+      - name: Release JNI prep
+        run: |
+          XGBOOST_VERSION=${{ github.event.inputs.xgb_version }}
+          XGBOOST_VERSION=${XGBOOST_VERSION:-$(cat gradle.properties | awk -F '=' '/xgboost_version/ {print $2}')}
+          git clone https://github.com/dmlc/xgboost --recursive -b v"$XGBOOST_VERSION"
+          export PATH=$PATH:/opt/rh/devtoolset-7/root/usr/bin
+          cd xgboost/jvm-packages
+          python3 create_jni.py
+          cd ../..
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v1-node16
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: us-east-2
+      - name: Copy files to S3 with the AWS CLI
+        run: |
+          XGBOOST_VERSION=${{ github.event.inputs.xgb_version }}
+          XGBOOST_VERSION=${XGBOOST_VERSION:-$(cat gradle.properties | awk -F '=' '/xgboost_version/ {print $2}')}
+          aws s3 cp xgboost/lib/libxgboost4j.so s3://djl-ai/publish/xgboost/${XGBOOST_VERSION}/jnilib/linux/aarch64/
+          aws cloudfront create-invalidation --distribution-id E371VB8JQ6NRVY --paths "/xgboost/${XGBOOST_VERSION}/jnilib*"
+
+  stop-runners:
+    if: ${{ github.repository == 'deepjavalibrary/djl' && always() }}
+    runs-on: [ self-hosted, scheduler ]
+    needs: [ create-aarch64-runner, build-xgboost-jni-aarch64 ]
+    steps:
+      - name: Stop all instances
+        run: |
+          cd /home/ubuntu/djl_benchmark_script/scripts
+          instance_id=${{ needs.create-aarch64-runner.outputs.aarch64_instance_id }}
+          ./stop_instance.sh $instance_id

engines/ml/xgboost/build.gradle

@@ -1,3 +1,5 @@
+import java.util.zip.GZIPInputStream
+
 group "ai.djl.ml.xgboost"
 boolean isGpu = project.hasProperty("gpu")
 def XGB_FLAVOR = isGpu ? "-gpu" : ""
@@ -34,6 +36,22 @@ dependencies {
     }
 }
 
+compileJava.dependsOn(processResources)
+
+processResources {
+    def jnilibDir = "${project.buildDir}/classes/java/main/lib/linux/aarch64/"
+    outputs.dir file(jnilibDir)
+    doLast {
+        def url = "https://publish.djl.ai/xgboost/${xgboost_version}/jnilib/linux/aarch64/libxgboost4j.so"
+        def file = new File("${jnilibDir}/libxgboost4j.so")
+        if (!file.exists()) {
+            project.logger.lifecycle("Downloading ${url}")
+            def downloadPath = new URL(url)
+            downloadPath.withInputStream { i -> file.withOutputStream { it << i } }
+        }
+    }
+}
+
 jar {
     from {
         (configurations.compileClasspath - configurations.exclusion).collect {

engines/ml/xgboost/src/test/java/ai/djl/ml/xgboost/XgbModelTest.java

@@ -42,7 +42,6 @@ public class XgbModelTest {
 
     @BeforeClass
     public void downloadXGBoostModel() throws IOException {
-        TestRequirements.notArm();
         TestRequirements.notWindows();
 
         Path modelDir = Paths.get("build/model");