diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 223da98aa922..8d1441815829 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -259,12 +259,6 @@ jobs:
           os: ubuntu-latest
           env: {CXX: g++,     CC: gcc,    ALPAKA_CI_GCC_VER: 9,        ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.69.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.0", CMAKE_CUDA_COMPILER: nvcc,                                              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         # nvcc + clang++
-        - name: linux_nvcc-11.0_clang-6_release_cuda_only
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: "6.0",  ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.69.0, ALPAKA_CI_CMAKE_VER: 3.18.6,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.0", CMAKE_CUDA_COMPILER: nvcc, ALPAKA_ACC_GPU_CUDA_ONLY_MODE: ON,           ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_THREADS_ENABLE: OFF, ALPAKA_ACC_CPU_B_TBB_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_OMP2_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_OMP2_ENABLE: OFF, ALPAKA_ACC_GPU_HIP_ENABLE: OFF}
-        - name: linux_nvcc-11.0_clang-7_debug
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 7,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.72.0, ALPAKA_CI_CMAKE_VER: 3.19.7,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.0", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "75",              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         - name: linux_nvcc-11.0_clang-8_release
           os: ubuntu-latest
           env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 8,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.74.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.0", CMAKE_CUDA_COMPILER: nvcc,                                              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
@@ -288,12 +282,6 @@ jobs:
         #  os: ubuntu-latest
         #  env: {CXX: g++,     CC: gcc,    ALPAKA_CI_GCC_VER: 10,       ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.73.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.1", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "86",               ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         # nvcc + clang++
-        - name: linux_nvcc-11.1_clang-6_release_cuda_only
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: "6.0",  ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.69.0, ALPAKA_CI_CMAKE_VER: 3.18.6,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.1", CMAKE_CUDA_COMPILER: nvcc, ALPAKA_ACC_GPU_CUDA_ONLY_MODE: ON,           ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_THREADS_ENABLE: OFF, ALPAKA_ACC_CPU_B_TBB_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_OMP2_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_OMP2_ENABLE: OFF, ALPAKA_ACC_GPU_HIP_ENABLE: OFF}
-        - name: linux_nvcc-11.1_clang-7_debug
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 7,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.72.0, ALPAKA_CI_CMAKE_VER: 3.19.7,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.1", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "75",              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         - name: linux_nvcc-11.1_clang-8_release
           os: ubuntu-latest
           env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 8,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.74.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.1", CMAKE_CUDA_COMPILER: nvcc,                                              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
@@ -320,12 +308,6 @@ jobs:
         #  os: ubuntu-latest
         #  env: {CXX: g++,     CC: gcc,    ALPAKA_CI_GCC_VER: 10,       ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.73.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.2", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "86",               ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         # nvcc + clang++
-        - name: linux_nvcc-11.2_clang-6_release_cuda_only
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: "6.0",  ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.69.0, ALPAKA_CI_CMAKE_VER: 3.18.6,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.2", CMAKE_CUDA_COMPILER: nvcc, ALPAKA_ACC_GPU_CUDA_ONLY_MODE: ON,           ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_THREADS_ENABLE: OFF, ALPAKA_ACC_CPU_B_TBB_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_OMP2_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_OMP2_ENABLE: OFF, ALPAKA_ACC_GPU_HIP_ENABLE: OFF}
-        - name: linux_nvcc-11.2_clang-7_debug
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 7,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.72.0, ALPAKA_CI_CMAKE_VER: 3.19.7,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.2", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "75",              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         - name: linux_nvcc-11.2_clang-8_release
           os: ubuntu-latest
           env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 8,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.74.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.2", CMAKE_CUDA_COMPILER: nvcc,                                              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
@@ -352,12 +334,6 @@ jobs:
         #  os: ubuntu-latest
         #  env: { CXX: g++,     CC: gcc,    ALPAKA_CI_GCC_VER: 10,       ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.73.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.3", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "86",               ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF }
         # nvcc + clang++
-        - name: linux_nvcc-11.3_clang-6_release_cuda_only
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: "6.0",  ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.69.0, ALPAKA_CI_CMAKE_VER: 3.18.6,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.3", CMAKE_CUDA_COMPILER: nvcc, ALPAKA_ACC_GPU_CUDA_ONLY_MODE: ON,           ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_THREADS_ENABLE: OFF, ALPAKA_ACC_CPU_B_TBB_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_OMP2_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_OMP2_ENABLE: OFF, ALPAKA_ACC_GPU_HIP_ENABLE: OFF}
-        - name: linux_nvcc-11.3_clang-7_debug
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 7,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.72.0, ALPAKA_CI_CMAKE_VER: 3.19.7,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.3", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "75",              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         - name: linux_nvcc-11.3_clang-8_release
           os: ubuntu-latest
           env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 8,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.74.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.3", CMAKE_CUDA_COMPILER: nvcc,                                              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
@@ -384,12 +360,6 @@ jobs:
           #  os: ubuntu-latest
           #  env: { CXX: g++,     CC: gcc,    ALPAKA_CI_GCC_VER: 10,       ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.73.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.4", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "86",               ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF }
           # nvcc + clang++
-        - name: linux_nvcc-11.4_clang-6_release_cuda_only
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: "6.0",  ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.69.0, ALPAKA_CI_CMAKE_VER: 3.18.6,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.4", CMAKE_CUDA_COMPILER: nvcc, ALPAKA_ACC_GPU_CUDA_ONLY_MODE: ON,           ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_THREADS_ENABLE: OFF, ALPAKA_ACC_CPU_B_TBB_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_OMP2_T_SEQ_ENABLE: OFF, ALPAKA_ACC_CPU_B_SEQ_T_OMP2_ENABLE: OFF, ALPAKA_ACC_GPU_HIP_ENABLE: OFF}
-        - name: linux_nvcc-11.4_clang-7_debug
-          os: ubuntu-latest
-          env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 7,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Debug,   ALPAKA_CI_BOOST_BRANCH: boost-1.72.0, ALPAKA_CI_CMAKE_VER: 3.19.7,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.4", CMAKE_CUDA_COMPILER: nvcc, CMAKE_CUDA_ARCHITECTURES: "75",              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
         - name: linux_nvcc-11.4_clang-8_release
           os: ubuntu-latest
           env: {CXX: clang++, CC: clang,  ALPAKA_CI_CLANG_VER: 8,      ALPAKA_CI_STDLIB: libstdc++, CMAKE_BUILD_TYPE: Release, ALPAKA_CI_BOOST_BRANCH: boost-1.74.0, ALPAKA_CI_CMAKE_VER: 3.20.0,                     ALPAKA_CI_DOCKER_BASE_IMAGE_NAME: "ubuntu:20.04", ALPAKA_ACC_GPU_CUDA_ENABLE: ON, ALPAKA_CI_CUDA_VERSION: "11.4", CMAKE_CUDA_COMPILER: nvcc,                                              ALPAKA_ACC_CPU_B_SEQ_T_FIBERS_ENABLE: OFF}
diff --git a/README.md b/README.md
index 9da08111e55c..b35486699b9b 100644
--- a/README.md
+++ b/README.md
@@ -70,18 +70,18 @@ Supported Compilers
 
 This library uses C++17 (or newer when available).
 
-|Accelerator Back-end|gcc 7.5 <br/> (Linux)|gcc 8.5 <br/> (Linux)|gcc 9.4 <br/> (Linux)|gcc 10.3 <br/> (Linux)|gcc 11.1 <br/> (Linux)|clang 5-9 <br/> (Linux)|clang 10 <br/> (Linux)|clang 11 <br/> (Linux)|clang 12 <br/> (Linux)|Apple LLVM 11.3.1/12.4.0/12.5.1/13.0.0 <br /> (macOS)|MSVC 2019 <br/> (Windows)|
-|---|---|---|---|---|---|---|---|---|---|---|---|
-|Serial|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|
-|OpenMP 2.0+ blocks|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|:white_check_mark:|
-|OpenMP 2.0+ threads|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|:white_check_mark:|
-|OpenMP 5.0 (CPU)|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:white_check_mark:|:white_check_mark:|:x:|:x:|
-| std::thread |:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|
-| Boost.Fiber |:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|:white_check_mark:|
-|TBB|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|
-|CUDA (nvcc)|:white_check_mark: <br/> (CUDA 11.0-11.4) |:white_check_mark: <br/> (CUDA 11.0-11.4) |:white_check_mark: <br/> (CUDA 11.0-11.4)|:x:|:x:|:white_check_mark: <br/> (CUDA 11.0-11.4)|:white_check_mark: <br/> (CUDA 11.1-11.4)|:white_check_mark: <br/> (CUDA 11.4)|:white_check_mark: <br/> (CUDA 11.4)|:x:|:white_check_mark: <br/> (CUDA 11.2-11.4)|
-|CUDA (clang) | - | - | - | - | - | - | :x: | :white_check_mark: <br/> (CUDA 9.2-10.1) | :white_check_mark: <br/> (CUDA 10.0-10.2) | - | - |
-|[HIP-4.0.1](https://alpaka.readthedocs.io/en/latest/install/HIP.html) (clang)|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:white_check_mark:| - | - |
+|Accelerator Back-end|gcc 7.5 <br/> (Linux)|gcc 8.5 <br/> (Linux)|gcc 9.4 <br/> (Linux)|gcc 10.3 <br/> (Linux)|gcc 11.1 <br/> (Linux)|clang 5-7 <br/> (Linux)|clang 8-9 <br/> (Linux)|clang 10 <br/> (Linux)|clang 11 <br/> (Linux)|clang 12 <br/> (Linux)|Apple LLVM 11.3.1/12.4.0/12.5.1/13.0.0 <br /> (macOS)|MSVC 2019 <br/> (Windows)|
+|---|---|---|---|---|---|---|---|---|---|---|---|---|
+|Serial|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|
+|OpenMP 2.0+ blocks|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|:white_check_mark:|
+|OpenMP 2.0+ threads|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|:white_check_mark:|
+|OpenMP 5.0 (CPU)|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:white_check_mark:|:white_check_mark:|:x:|:x:|
+| std::thread |:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|
+| Boost.Fiber |:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|:white_check_mark:|
+|TBB|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:white_check_mark:|:x:|
+|CUDA (nvcc)|:white_check_mark: <br/> (CUDA 11.0-11.4) |:white_check_mark: <br/> (CUDA 11.0-11.4) |:white_check_mark: <br/> (CUDA 11.0-11.4)|:x:|:x:|:x:|:white_check_mark: <br/> (CUDA 11.0-11.4)|:white_check_mark: <br/> (CUDA 11.1-11.4)|:white_check_mark: <br/> (CUDA 11.4)|:white_check_mark: <br/> (CUDA 11.4)|:x:|:white_check_mark: <br/> (CUDA 11.2-11.4)|
+|CUDA (clang) | - | - | - | - | - | - | - | :x: | :white_check_mark: <br/> (CUDA 9.2-10.1) | :white_check_mark: <br/> (CUDA 10.0-10.2) | - | - |
+|[HIP-4.0.1](https://alpaka.readthedocs.io/en/latest/install/HIP.html) (clang)|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:x:|:white_check_mark:| - | - |
 
 Other compilers or combinations marked with :x: in the table above may work but are not tested in CI and are therefore not explicitly supported.