Use oneAPI compiler for Linux native CPU CI

Author: allnes

.github/workflows/sycl-ci.yml

@@ -17,9 +17,6 @@ jobs:
   build-sycl-linux-x86:
     name: linux-x86_64 / ${{ matrix.build_type }}
     runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/intel/llvm/sycl_ubuntu2404_nightly:latest
-      options: -u 0:0
     timeout-minutes: 360
     strategy:
       fail-fast: true

scripts/ci/sycl_x86_setup.py

@@ -66,22 +66,47 @@ def setup_linux_runtime() -> None:
             "zstd",
         ]
     )
-    clang_path = Path(capture(["bash", "-lc", "readlink -f \"$(command -v clang++)\""]))
-    candidate_roots = [
-        clang_path.parent.parent,
-        clang_path.parent.parent.parent,
-    ]
-    sycl_root = next(
-        (
-            root
-            for root in candidate_roots
-            if (root / "bin").is_dir() or (root / "bin" / "compiler").is_dir()
+    key_url = "https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB"
+    key_path = Path(require_env("RUNNER_TEMP")) / "oneapi-intel-key.pub"
+    armored_key_path = Path(require_env("RUNNER_TEMP")) / "oneapi-archive-keyring.gpg"
+    download(key_url, key_path)
+    run(
+        [
+            "gpg",
+            "--dearmor",
+            "--output",
+            str(armored_key_path),
+            str(key_path),
+        ]
+    )
+    run(
+        [
+            *command_prefix,
+            "cp",
+            str(armored_key_path),
+            "/usr/share/keyrings/oneapi-archive-keyring.gpg",
+        ]
+    )
+    run(
+        [*command_prefix, "tee", "/etc/apt/sources.list.d/oneAPI.list"],
+        input_text=(
+            "deb [signed-by=/usr/share/keyrings/oneapi-archive-keyring.gpg] "
+            "https://apt.repos.intel.com/oneapi all main\n"
         ),
-        None,
     )
-    if sycl_root is None:
-        main_error(f"Unable to infer SYCL_ROOT from compiler path: {clang_path}")
-    write_env("SYCL_ROOT", str(sycl_root))
+    run([*command_prefix, "apt-get", "update"])
+    run(
+        [
+            *command_prefix,
+            "apt-get",
+            "install",
+            "-y",
+            "intel-oneapi-compiler-dpcpp-cpp",
+        ]
+    )
+
+    write_env("ITLABAI_GCC_INSTALL_DIR", "/usr/lib/gcc/x86_64-linux-gnu/13")
+    write_env("SYCL_ROOT", "/opt/intel/oneapi/compiler/latest")
 
 
 def prepare_sycl_toolchain() -> Path: