[flashlight-cuda] New Port (#14676)

* [flashlight-cuda] New Port

* Rebase on NCCL port, update commit

* Add default feature (fl)

ports/flashlight-cuda/portfile.cmake

@@ -0,0 +1,55 @@
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO facebookresearch/flashlight
+    REF cd0aa18b94340afc7cfa9a14281d1c90c0ed42e1
+    SHA512 a11392af82054b63c557214c04e59b362aa1eb5897b30a595b26fd22c37c29571e504346947c6b9cebc4499c3af68d2075fd3144dcc0535a27886e34036ac5ff
+    HEAD_REF master
+)
+
+################################### Build ###################################
+# Default flags
+set(FL_DEFAULT_VCPKG_CMAKE_FLAGS
+  -DFL_BUILD_TESTS=OFF
+  -DFL_BUILD_EXAMPLES=OFF
+  -DFL_BACKEND=CUDA # this port is CUDA-backend only
+  -DFL_BUILD_STANDALONE=OFF
+  -DFL_INSTALL_CMAKE_DIR=${CURRENT_PACKAGES_DIR}/share/${PORT} # for CMake configs/targets
+  )
+
+# Determine which backend to build via specified feature
+vcpkg_check_features(
+  OUT_FEATURE_OPTIONS FL_BACKEND_FEATURE_OPTIONS
+  FEATURES
+    lib FL_BUILD_LIBRARIES
+    fl FL_BUILD_CORE
+    asr FL_BUILD_APP_ASR
+    imgclass FL_BUILD_APP_IMG_CLASS
+)
+
+# Build and install
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS ${FL_DEFAULT_VCPKG_CMAKE_FLAGS} ${FL_BACKEND_FEATURE_OPTIONS}
+)
+vcpkg_install_cmake()
+
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
+
+# Binaries/tools
+set(FLASHLIGHT_TOOLS "")
+if ("imgclass" IN_LIST FEATURES)
+  list(APPEND FLASHLIGHT_TOOLS fl_imageNetResnet34)
+endif()
+if ("asr" IN_LIST FEATURES)
+  list(APPEND FLASHLIGHT_TOOLS fl_asr_train fl_asr_test fl_asr_decode)
+endif()
+list(LENGTH FLASHLIGHT_TOOLS NUM_TOOLS)
+if (NUM_TOOLS GREATER 0)
+  vcpkg_copy_tools(TOOL_NAMES ${FLASHLIGHT_TOOLS} AUTO_CLEAN)
+endif()
+
+# Copyright and license
+file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/flashlight-cuda RENAME copyright)
+file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/flashlight-cuda RENAME license)

ports/flashlight-cuda/vcpkg.json

@@ -0,0 +1,72 @@
+{
+  "name": "flashlight-cuda",
+  "version-string": "20201120",
+  "port-version": 1,
+  "description": "A C++ standalone library for machine learning. CUDA backend.",
+  "supports": "!(windows | osx)",
+  "default-features": [
+    "fl"
+  ],
+  "features": {
+    "asr": {
+      "description": "flashlight asr app",
+      "dependencies": [
+        {
+          "name": "flashlight-cuda",
+          "default-features": false,
+          "features": [
+            "fl"
+          ]
+        },
+        "gflags",
+        "libsndfile"
+      ]
+    },
+    "fl": {
+      "description": "flashlight core autograd and neural net library",
+      "dependencies": [
+        {
+          "name": "arrayfire",
+          "default-features": false,
+          "features": [
+            "cuda"
+          ]
+        },
+        "cereal",
+        "cuda",
+        "cudnn",
+        {
+          "name": "flashlight-cuda",
+          "default-features": false,
+          "features": [
+            "lib"
+          ]
+        },
+        "nccl",
+        "openmpi"
+      ]
+    },
+    "imgclass": {
+      "description": "flashlight image classification app",
+      "dependencies": [
+        {
+          "name": "flashlight-cuda",
+          "default-features": false,
+          "features": [
+            "fl"
+          ]
+        },
+        "gflags"
+      ]
+    },
+    "lib": {
+      "description": "flashlight libraries",
+      "dependencies": [
+        "cub",
+        "fftw3",
+        "intel-mkl",
+        "kenlm"
+      ]
+    }
+  }
+}