[conda] Split GPU runtime into dal-gpu package

conda-recipe/build.sh

@@ -18,6 +18,15 @@
 export TBBROOT=$PREFIX
 export DPL_ROOT=$PREFIX
 
+# Workaround: some tbb-devel builds expose only versioned SONAME (libtbb.so.<N>)
+# while oneDAL Make expects unversioned libtbb.so path in prerequisites.
+if [ ! -f "$PREFIX/lib/libtbb.so" ]; then
+    tbb_soname=$(find "$PREFIX/lib" -maxdepth 1 -name "libtbb.so.*" | head -1)
+    if [ -n "$tbb_soname" ]; then
+        ln -sf "$(basename "$tbb_soname")" "$PREFIX/lib/libtbb.so"
+    fi
+fi
+
 # default flags set by conda-build create problems with oneDAL build system
 unset CFLAGS LDFLAGS CXXFLAGS
 # CONDA_CXX_COMPILER is set by the conda recipe

conda-recipe/meta.yaml

@@ -69,10 +69,24 @@ outputs:
     test:
       commands:
         - test -f $PREFIX/lib/libonedal_core.so.{{ major_binary_version }}  # [linux]
-        - test -f $PREFIX/lib/libonedal_dpc.so.{{ major_binary_version }}  # [linux]
         - test -f $PREFIX/lib/libonedal_thread.so.{{ major_binary_version }}  # [linux]
     about:
-      summary: oneAPI Data Analytics Library (oneDAL) runtime libraries
+      summary: oneAPI Data Analytics Library (oneDAL) CPU runtime libraries
+
+  - name: dal-gpu
+    build:
+      skip: true  # [cxx_compiler != "dpcpp"]
+    script: pack.sh  # [linux]
+    requirements:
+      run:
+        - {{ pin_subpackage('dal', exact=True) }}
+        - dpcpp_impl_linux-64  # [linux64]
+    test:
+      commands:
+        - test -f $PREFIX/lib/libonedal_dpc.so.{{ major_binary_version }}  # [linux]
+        - test -f $PREFIX/lib/libonedal_parameters_dpc.so.{{ major_binary_version }}  # [linux]
+    about:
+      summary: oneAPI Data Analytics Library (oneDAL) GPU/DPC++ runtime library
 
   - name: dal-include
     script: pack.sh  # [linux]
@@ -109,6 +123,7 @@ outputs:
         - mkl-devel
         - mkl-static
         - mkl-devel-dpcpp  # [ cxx_compiler == "dpcpp" ]
+        - dal-gpu =={{ version }}  # [ cxx_compiler == "dpcpp" ]
       source_files:
         - examples
       script: test-devel.sh  # [linux]

conda-recipe/pack.sh

@@ -40,9 +40,13 @@ if [ "$PKG_NAME" = "dal-include" ]; then
     mkdir -p "$PREFIX/include"
     cp -r include/* "$PREFIX/include/"
 fi
-# copy libraries
+# copy CPU runtime libraries (excludes all DPC++ runtime libs, moved to dal-gpu)
 if [ "$PKG_NAME" = "dal" ]; then
-    find lib/intel64 -name "libonedal*.so*" -exec cp -P {} "$PREFIX/lib/" \;
+    find lib/intel64 -name "libonedal*.so*" ! -name "libonedal*_dpc*" -exec cp -P {} "$PREFIX/lib/" \;
+fi
+# copy GPU/DPC++ runtime libraries
+if [ "$PKG_NAME" = "dal-gpu" ]; then
+    find lib/intel64 -name "libonedal*_dpc*.so*" -exec cp -P {} "$PREFIX/lib/" \;
 fi
 if [ "$PKG_NAME" = "dal-static" ]; then
     find lib/intel64 -name "libonedal*.a" -exec cp {} "$PREFIX/lib/" \;

conda-recipe/test-devel.sh

@@ -23,6 +23,7 @@ source $CONDA_PREFIX/env/vars.sh
 run_examples() {
     local interface_name=$1
     local linking_type=$2
+    local extra_cmake_args=${3:-""}
 
     if [ "$linking_type" == "dynamic" ]; then
         library_postfix="so"
@@ -44,6 +45,7 @@ run_examples() {
             if [ "$linking_type" == "static" ]; then
                 cmake_args="$cmake_args -DTBB_tbb_FOUND=YES"
             fi
+            cmake_args="$cmake_args $extra_cmake_args"
 
             cmake .. $cmake_args
             make -j$(nproc)
@@ -58,8 +60,81 @@ run_examples() {
     )
 }
 
+run_dpc_examples() {
+    # DPC++ examples are validated only in dynamic mode.
+    # We do not produce static DPC++ artifacts in conda packaging.
+    local linking_type="dynamic"
+    local library_postfix="so"
+
+    (
+        cd examples/oneapi/dpc
+        mkdir build_$linking_type
+
+        (
+            cd build_$linking_type
+
+            cmake_args="-DONEDAL_LINK=$linking_type"
+            # Note: MKL cmake config (incl. SYCL variant) requires TBB to be findable at configure time.
+            # conda-forge tbb-devel does not ship TBBConfig.cmake, so we set TBB as found manually
+            # (same approach as for the static CPU build above).
+            cmake_args="$cmake_args -DTBB_tbb_FOUND=YES"
+
+            cmake .. $cmake_args
+            make -j$(nproc)
+        )
+
+        for example in _cmake_results/intel_intel64_$library_postfix/*; do
+            echo "================"
+            echo "Running example: oneapi-dpc-$linking_type-$(basename $example)"
+            echo "================"
+            $example
+        done
+    )
+}
+
+# ============================================================
+# CPU-only tests: oneapi/cpp + daal (no GPU lib required)
+# These must pass even without dal-gpu installed.
+# ============================================================
+echo "========================================"
+echo "Running CPU examples: oneapi/cpp dynamic"
+echo "========================================"
 run_examples oneapi dynamic
+
+echo "========================================"
+echo "Running CPU examples: oneapi/cpp static"
+echo "========================================"
 run_examples oneapi static
+
+echo "========================================"
+echo "Running CPU examples: daal/cpp dynamic"
+echo "========================================"
 run_examples daal dynamic
+
+echo "========================================"
+echo "Running CPU examples: daal/cpp static"
+echo "========================================"
 run_examples daal static
+
+# ============================================================
+# GPU/DPC++ tests: oneapi/dpc (requires dal-gpu / libonedal_dpc.so)
+# Skipped if GPU library is not installed.
+# ============================================================
+if [ -f "$CONDA_PREFIX/lib/libonedal_dpc.so" ] && [ -f "$CONDA_PREFIX/lib/libonedal_parameters_dpc.so" ]; then
+    # Workaround: MKL cmake config requires unversioned libtbb.so for tbb_thread threading.
+    # conda-forge tbb-devel may only provide versioned soname (libtbb.so.<N>).
+    if [ ! -f "$CONDA_PREFIX/lib/libtbb.so" ]; then
+        tbb_so=$(find "$CONDA_PREFIX/lib" -maxdepth 1 -name "libtbb.so.*" | head -1)
+        [ -n "$tbb_so" ] && ln -sf "$(basename "$tbb_so")" "$CONDA_PREFIX/lib/libtbb.so"
+    fi
+    echo "========================================"
+    echo "Running GPU/DPC++ examples: oneapi/dpc dynamic"
+    echo "========================================"
+    run_dpc_examples
+else
+    echo "========================================"
+    echo "Skipping GPU/DPC++ examples: dal-gpu is not fully installed"
+    echo "========================================"
+fi
+
 # TODO: add testing for samples