Merged in benoitsteiner/opencl (pull request PR-318)

Improved support for OpenCL

CMakeLists.txt

@@ -437,10 +437,17 @@ endif()
 
 # add SYCL
 option(EIGEN_TEST_SYCL "Add Sycl support." OFF)
+option(EIGEN_SYCL_TRISYCL "Use the triSYCL Sycl implementation (ComputeCPP by default)." OFF)
 if(EIGEN_TEST_SYCL)
   set (CMAKE_MODULE_PATH "${CMAKE_ROOT}/Modules" "cmake/Modules/" "${CMAKE_MODULE_PATH}")
-  include(FindComputeCpp)
+  if(EIGEN_SYCL_TRISYCL)
-endif()
+    message(STATUS "Using triSYCL")
+    include(FindTriSYCL)
+  else(EIGEN_SYCL_TRISYCL)
+    message(STATUS "Using ComputeCPP SYCL")
+    include(FindComputeCpp)
+  endif(EIGEN_SYCL_TRISYCL)
+endif(EIGEN_TEST_SYCL)
 
 add_subdirectory(unsupported)
 

cmake/EigenTesting.cmake

@@ -111,7 +111,6 @@ endmacro(ei_add_test_internal)
 
 # SYCL
 macro(ei_add_test_internal_sycl testname testname_with_suffix)
-  include_directories( SYSTEM ${COMPUTECPP_PACKAGE_ROOT_DIR}/include)
   set(targetname ${testname_with_suffix})
 
   if(EIGEN_ADD_TEST_FILENAME_EXTENSION)
@@ -120,23 +119,31 @@ macro(ei_add_test_internal_sycl testname testname_with_suffix)
     set(filename ${testname}.cpp)
   endif()
 
-  set( include_file ${CMAKE_CURRENT_BINARY_DIR}/inc_${filename})
+  set( include_file "${CMAKE_CURRENT_BINARY_DIR}/inc_${filename}")
-  set( bc_file ${CMAKE_CURRENT_BINARY_DIR}/${filename})
+  set( bc_file "${CMAKE_CURRENT_BINARY_DIR}/${filename}.sycl")
-  set( host_file ${CMAKE_CURRENT_SOURCE_DIR}/${filename})
+  set( host_file "${CMAKE_CURRENT_SOURCE_DIR}/${filename}")
 
-  ADD_CUSTOM_COMMAND(
+  if(NOT EIGEN_SYCL_TRISYCL)
-    OUTPUT ${include_file}
+    include_directories( SYSTEM ${COMPUTECPP_PACKAGE_ROOT_DIR}/include)
-    COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\\"${host_file}\\\"" > ${include_file}
-    COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\\"${bc_file}.sycl\\\"" >> ${include_file}
-    DEPENDS ${filename} ${bc_file}.sycl
-    COMMENT "Building ComputeCpp integration header file ${include_file}"
-  )
-  # Add a custom target for the generated integration header
-  add_custom_target(${testname}_integration_header_sycl DEPENDS ${include_file})
 
-  add_executable(${targetname} ${include_file})
+    ADD_CUSTOM_COMMAND(
-  add_dependencies(${targetname} ${testname}_integration_header_sycl)
+      OUTPUT ${include_file}
-  add_sycl_to_target(${targetname} ${filename} ${CMAKE_CURRENT_BINARY_DIR})
+      COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\\"${host_file}\\\"" > ${include_file}
+      COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\\"${bc_file}\\\"" >> ${include_file}
+      DEPENDS ${filename} ${bc_file}
+      COMMENT "Building ComputeCpp integration header file ${include_file}"
+      )
+
+    # Add a custom target for the generated integration header
+    add_custom_target("${testname}_integration_header_sycl" DEPENDS ${include_file})
+
+    add_executable(${targetname} ${include_file})
+    add_dependencies(${targetname} "${testname}_integration_header_sycl")
+  else()
+    add_executable(${targetname} ${host_file})
+  endif()
+
+  add_sycl_to_target(${targetname} ${CMAKE_CURRENT_BINARY_DIR} ${filename})
 
   if (targetname MATCHES "^eigen2_")
     add_dependencies(eigen2_buildtests ${targetname})
@@ -467,7 +474,11 @@ macro(ei_testing_print_summary)
     endif()
 
     if(EIGEN_TEST_SYCL)
-      message(STATUS "SYCL:              ON")
+      if(EIGEN_SYCL_TRISYCL)
+        message(STATUS "SYCL:              ON (using triSYCL)")
+      else()
+        message(STATUS "SYCL:              ON (using computeCPP)")
+      endif()
     else()
       message(STATUS "SYCL:              OFF")
     endif()

cmake/FindComputeCpp.cmake

@@ -38,11 +38,6 @@ if(CMAKE_COMPILER_IS_GNUCXX)
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
       message(FATAL_ERROR
         "host compiler - Not found! (gcc version must be at least 4.8)")
-    # Require the GCC dual ABI to be disabled for 5.1 or higher
-    elseif (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 5.1)
-      set(COMPUTECPP_DISABLE_GCC_DUAL_ABI "True")
-      message(STATUS
-        "host compiler - gcc ${CMAKE_CXX_COMPILER_VERSION} (note pre 5.1 gcc ABI enabled)")
     else()
       message(STATUS "host compiler - gcc ${CMAKE_CXX_COMPILER_VERSION}")
     endif()
@@ -64,6 +59,12 @@ option(COMPUTECPP_64_BIT_CODE "Compile device code in 64 bit mode"
         ${COMPUTECPP_64_BIT_DEFAULT})
 mark_as_advanced(COMPUTECPP_64_BIT_CODE)
 
+option(COMPUTECPP_DISABLE_GCC_DUAL_ABI "Compile with pre-5.1 ABI" OFF)
+mark_as_advanced(COMPUTECPP_DISABLE_GCC_DUAL_ABI)
+
+set(COMPUTECPP_USER_FLAGS "" CACHE STRING "User flags for compute++")
+mark_as_advanced(COMPUTECPP_USER_FLAGS)
+
 # Find OpenCL package
 find_package(OpenCL REQUIRED)
 
@@ -74,7 +75,6 @@ if(NOT COMPUTECPP_PACKAGE_ROOT_DIR)
 else()
   message(STATUS "ComputeCpp package - Found")
 endif()
-option(COMPUTECPP_PACKAGE_ROOT_DIR "Path to the ComputeCpp Package")
 
 # Obtain the path to compute++
 find_program(COMPUTECPP_DEVICE_COMPILER compute++ PATHS
@@ -138,8 +138,6 @@ else()
   message(STATUS "compute++ flags - ${COMPUTECPP_DEVICE_COMPILER_FLAGS}")
 endif()
 
-set(COMPUTECPP_DEVICE_COMPILER_FLAGS ${COMPUTECPP_DEVICE_COMPILER_FLAGS} -sycl-compress-name -Wall -no-serial-memop -DEIGEN_NO_ASSERTION_CHECKING=1)
-
 # Check if the platform is supported
 execute_process(COMMAND ${COMPUTECPP_INFO_TOOL} "--dump-is-supported"
   OUTPUT_VARIABLE COMPUTECPP_PLATFORM_IS_SUPPORTED
@@ -155,6 +153,13 @@ else()
   endif()
 endif()
 
+set(COMPUTECPP_USER_FLAGS
+  -sycl-compress-name
+  -Wall
+  -no-serial-memop
+  -DEIGEN_NO_ASSERTION_CHECKING=1
+  )
+
 ####################
 #   __build_sycl
 ####################
@@ -165,8 +170,11 @@ endif()
 #  targetName : Name of the target.
 #  sourceFile : Source file to be compiled.
 #  binaryDir : Intermediate directory to output the integration header.
+#  fileCounter : Counter included in name of custom target. Different counter
+#       values prevent duplicated names of custom target when source files with the same name,
+#       but located in different directories, are used for the same target.
 #
-function(__build_spir targetName sourceFile binaryDir)
+function(__build_spir targetName sourceFile binaryDir fileCounter)
 
   # Retrieve source file name.
   get_filename_component(sourceFileName ${sourceFile} NAME)
@@ -175,12 +183,16 @@ function(__build_spir targetName sourceFile binaryDir)
   set(outputSyclFile ${binaryDir}/${sourceFileName}.sycl)
 
   # Add any user-defined include to the device compiler
+  set(device_compiler_includes "")
   get_property(includeDirectories DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY
     INCLUDE_DIRECTORIES)
-  set(device_compiler_includes "")
   foreach(directory ${includeDirectories})
     set(device_compiler_includes "-I${directory}" ${device_compiler_includes})
   endforeach()
+  get_target_property(targetIncludeDirectories ${targetName} INCLUDE_DIRECTORIES)
+  foreach(directory ${targetIncludeDirectories})
+    set(device_compiler_includes "-I${directory}" ${device_compiler_includes})
+  endforeach()
   if (CMAKE_INCLUDE_PATH)
     foreach(directory ${CMAKE_INCLUDE_PATH})
       set(device_compiler_includes "-I${directory}"
@@ -188,6 +200,9 @@ function(__build_spir targetName sourceFile binaryDir)
     endforeach()
   endif()
 
+  set(COMPUTECPP_DEVICE_COMPILER_FLAGS
+    ${COMPUTECPP_DEVICE_COMPILER_FLAGS}
+    ${COMPUTECPP_USER_FLAGS})
   # Convert argument list format
   separate_arguments(COMPUTECPP_DEVICE_COMPILER_FLAGS)
 
@@ -201,9 +216,10 @@ function(__build_spir targetName sourceFile binaryDir)
             ${device_compiler_includes}
             -o ${outputSyclFile}
             -c ${CMAKE_CURRENT_SOURCE_DIR}/${sourceFile}
-    DEPENDS ${sourceFile}
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${sourceFile}
+    IMPLICIT_DEPENDS CXX "${CMAKE_CURRENT_SOURCE_DIR}/${sourceFile}"
     WORKING_DIRECTORY ${binaryDir}
-  COMMENT "Building ComputeCpp integration header file ${outputSyclFile}")
+    COMMENT "Building ComputeCpp integration header file ${outputSyclFile}")
 
   # Add a custom target for the generated integration header
   add_custom_target(${targetName}_integration_header DEPENDS ${outputSyclFile})
@@ -230,13 +246,18 @@ endfunction()
 #  target and sets a dependancy on that new command.
 #
 #  targetName : Name of the target to add a SYCL to.
-#  sourceFile : Source file to be compiled for SYCL.
 #  binaryDir : Intermediate directory to output the integration header.
+#  sourceFiles : Source files to be compiled for SYCL.
 #
-function(add_sycl_to_target targetName sourceFile binaryDir)
+function(add_sycl_to_target targetName binaryDir sourceFiles)
 
+  set(sourceFiles ${sourceFiles} ${ARGN})
+  set(fileCounter 0)
   # Add custom target to run compute++ and generate the integration header
-  __build_spir(${targetName} ${sourceFile} ${binaryDir})
+  foreach(sourceFile ${sourceFiles})
+    __build_spir(${targetName} ${sourceFile} ${binaryDir} ${fileCounter})
+    MATH(EXPR fileCounter "${fileCounter} + 1")
+  endforeach()
 
   # Link with the ComputeCpp runtime library
   target_link_libraries(${targetName} PUBLIC ${COMPUTECPP_RUNTIME_LIBRARY}

cmake/FindTriSYCL.cmake

@@ -0,0 +1,152 @@
+#.rst:
+# FindTriSYCL
+#---------------
+#
+# TODO : insert Copyright and licence
+
+#########################
+#  FindTriSYCL.cmake
+#########################
+#
+#  Tools for finding and building with TriSYCL.
+#
+#  User must define TRISYCL_INCLUDE_DIR pointing to the triSYCL
+#  include directory.
+#
+#  Latest version of this file can be found at:
+#    https://github.com/triSYCL/triSYCL
+
+# Requite CMake version 3.5 or higher
+cmake_minimum_required (VERSION 3.5)
+
+# Check that a supported host compiler can be found
+if(CMAKE_COMPILER_IS_GNUCXX)
+  # Require at least gcc 5.4
+  if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.4)
+    message(FATAL_ERROR
+      "host compiler - Not found! (gcc version must be at least 5.4)")
+  else()
+    message(STATUS "host compiler - gcc ${CMAKE_CXX_COMPILER_VERSION}")
+  endif()
+elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+  # Require at least clang 3.9
+  if (${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.9)
+    message(FATAL_ERROR
+      "host compiler - Not found! (clang version must be at least 3.9)")
+  else()
+    message(STATUS "host compiler - clang ${CMAKE_CXX_COMPILER_VERSION}")
+  endif()
+else()
+  message(WARNING
+    "host compiler - Not found! (triSYCL supports GCC and Clang)")
+endif()
+
+#triSYCL options
+option(TRISYCL_OPENMP "triSYCL multi-threading with OpenMP" ON)
+option(TRISYCL_OPENCL "triSYCL OpenCL interoperability mode" OFF)
+option(TRISYCL_NO_ASYNC "triSYCL use synchronous kernel execution" OFF)
+option(TRISYCL_DEBUG "triSCYL use debug mode" OFF)
+option(TRISYCL_DEBUG_STRUCTORS "triSYCL trace of object lifetimes" OFF)
+option(TRISYCL_TRACE_KERNEL "triSYCL trace of kernel execution" OFF)
+
+mark_as_advanced(TRISYCL_OPENMP)
+mark_as_advanced(TRISYCL_OPENCL)
+mark_as_advanced(TRISYCL_NO_ASYNC)
+mark_as_advanced(TRISYCL_DEBUG)
+mark_as_advanced(TRISYCL_DEBUG_STRUCTORS)
+mark_as_advanced(TRISYCL_TRACE_KERNEL)
+
+#triSYCL definitions
+set(CL_SYCL_LANGUAGE_VERSION 220 CACHE VERSION
+  "Host language version to be used by trisYCL (default is: 220)")
+set(TRISYCL_CL_LANGUAGE_VERSION 220 CACHE VERSION
+  "Device language version to be used by trisYCL (default is: 220)")
+#set(TRISYCL_COMPILE_OPTIONS "-std=c++1z -Wall -Wextra")
+set(CMAKE_CXX_STANDARD 14)
+set(CXX_STANDARD_REQUIRED ON)
+
+
+# Find OpenCL package
+if(TRISYCL_OPENCL)
+  find_package(OpenCL REQUIRED)
+  if(UNIX)
+    set(BOOST_COMPUTE_INCPATH /usr/include/compute CACHE PATH
+      "Path to Boost.Compute headers (default is: /usr/include/compute)")
+  endif(UNIX)
+endif()
+
+# Find OpenMP package
+if(TRISYCL_OPENMP)
+  find_package(OpenMP REQUIRED)
+endif()
+
+# Find Boost
+find_package(Boost 1.58 REQUIRED COMPONENTS chrono log)
+
+# If debug or trace we need boost log
+if(TRISYCL_DEBUG OR TRISYCL_DEBUG_STRUCTORS OR TRISYCL_TRACE_KERNEL)
+  set(LOG_NEEDED ON)
+else()
+  set(LOG_NEEDED OFF)
+endif()
+
+find_package(Threads REQUIRED)
+
+# Find triSYCL directory
+if(NOT TRISYCL_INCLUDE_DIR)
+  message(FATAL_ERROR
+    "triSYCL include directory - Not found! (please set TRISYCL_INCLUDE_DIR")
+else()
+  message(STATUS "triSYCL include directory - Found ${TRISYCL_INCLUDE_DIR}")
+endif()
+
+#######################
+#  add_sycl_to_target
+#######################
+#
+#  Sets the proper flags and includes for the target compilation.
+#
+#  targetName : Name of the target to add a SYCL to.
+#  sourceFile : Source file to be compiled for SYCL.
+#  binaryDir : Intermediate directory to output the integration header.
+#
+function(add_sycl_to_target targetName sourceFile binaryDir)
+
+  # Add include directories to the "#include <>" paths
+  target_include_directories (${targetName} PUBLIC
+    ${TRISYCL_INCLUDE_DIR}
+    ${Boost_INCLUDE_DIRS}
+    $<$<BOOL:${TRISYCL_OPENCL}>:${OpenCL_INCLUDE_DIRS}>
+    $<$<BOOL:${TRISYCL_OPENCL}>:${BOOST_COMPUTE_INCPATH}>)
+
+
+  # Link dependencies
+  target_link_libraries(${targetName} PUBLIC
+    $<$<BOOL:${TRISYCL_OPENCL}>:${OpenCL_LIBRARIES}>
+    Threads::Threads
+    $<$<BOOL:${LOG_NEEDED}>:Boost::log>
+    Boost::chrono)
+
+
+  # Compile definitions
+  target_compile_definitions(${targetName} PUBLIC
+    $<$<BOOL:${TRISYCL_NO_ASYNC}>:TRISYCL_NO_ASYNC>
+    $<$<BOOL:${TRISYCL_OPENCL}>:TRISYCL_OPENCL>
+    $<$<BOOL:${TRISYCL_DEBUG}>:TRISYCL_DEBUG>
+    $<$<BOOL:${TRISYCL_DEBUG_STRUCTORS}>:TRISYCL_DEBUG_STRUCTORS>
+    $<$<BOOL:${TRISYCL_TRACE_KERNEL}>:TRISYCL_TRACE_KERNEL>
+    $<$<BOOL:${LOG_NEEDED}>:BOOST_LOG_DYN_LINK>)
+
+  # C++ and OpenMP requirements
+  target_compile_options(${targetName} PUBLIC
+    ${TRISYCL_COMPILE_OPTIONS}
+    $<$<BOOL:${TRISYCL_OPENMP}>:${OpenMP_CXX_FLAGS}>)
+
+  if(${TRISYCL_OPENMP} AND (NOT WIN32))
+    # Does not support generator expressions
+    set_target_properties(${targetName}
+      PROPERTIES
+      LINK_FLAGS ${OpenMP_CXX_FLAGS})
+  endif(${TRISYCL_OPENMP} AND (NOT WIN32))
+
+endfunction(add_sycl_to_target)

unsupported/Eigen/CXX11/Tensor

@@ -19,7 +19,7 @@
 #undef isnan
 #undef isinf
 #undef isfinite
-#include <SYCL/sycl.hpp>
+#include <CL/sycl.hpp>
 #include <iostream>
 #include <map>
 #include <memory>

unsupported/Eigen/CXX11/src/Tensor/TensorContractionSycl.h

@@ -195,7 +195,7 @@ typename HostExpr::Index LocalThreadSizeM, typename HostExpr::Index LocalThreadS
     m_j_strides(m_j_strides_),  m_right_nocontract_strides(m_right_nocontract_strides_),
     left_tuple_of_accessors(left_tuple_of_accessors_), right_tuple_of_accessors(right_tuple_of_accessors_), dev(dev_){}
 
-    void operator()(cl::sycl::nd_item<1> itemID) {
+    void operator()(cl::sycl::nd_item<2> itemID) {
       typedef typename Eigen::TensorSycl::internal::ConvertToDeviceExpression<HostExpr>::Type DevExpr;
       typedef typename Eigen::TensorSycl::internal::ConvertToDeviceExpression<LHSHostExpr>::Type LHSDevExpr;
       typedef typename Eigen::TensorSycl::internal::ConvertToDeviceExpression<RHSHostExpr>::Type RHSDevExpr;

unsupported/Eigen/CXX11/src/Tensor/TensorDeviceSycl.h

@@ -14,7 +14,23 @@
 
 #if defined(EIGEN_USE_SYCL) && !defined(EIGEN_CXX11_TENSOR_TENSOR_DEVICE_SYCL_H)
 #define EIGEN_CXX11_TENSOR_TENSOR_DEVICE_SYCL_H
+template<size_t Align> struct CheckAlignStatically {
+  static const bool Val= (((Align&(Align-1))==0) && (Align >= sizeof(void *)));
+};
+template <bool IsAligned, size_t Align>
+struct Conditional_Allocate {
 
+  EIGEN_ALWAYS_INLINE static void* conditional_allocate(std::size_t elements) {
+    return aligned_alloc(Align, elements);
+  }
+};
+template <size_t Align>
+struct Conditional_Allocate<false, Align> {
+
+  EIGEN_ALWAYS_INLINE static void* conditional_allocate(std::size_t elements){
+    return malloc(elements);
+  }
+};
 template <typename Scalar, size_t Align = EIGEN_MAX_ALIGN_BYTES, class Allocator = std::allocator<Scalar>>
 struct SyclAllocator {
   typedef Scalar value_type;
@@ -22,7 +38,9 @@ struct SyclAllocator {
   typedef typename std::allocator_traits<Allocator>::size_type size_type;
 
   SyclAllocator( ){};
-  Scalar* allocate(std::size_t elements) { return static_cast<Scalar*>(aligned_alloc(Align, elements)); }
+  Scalar* allocate(std::size_t elements) {
+    return static_cast<Scalar*>(Conditional_Allocate<CheckAlignStatically<Align>::Val, Align>::conditional_allocate(elements));
+  }
   void deallocate(Scalar * p, std::size_t size) { EIGEN_UNUSED_VARIABLE(size); free(p); }
 };
 
@@ -81,28 +99,26 @@ struct memsetCghFunctor{
   }
 };
 
-  //get_devices returns all the available opencl devices. Either use device_selector or exclude devices that computecpp does not support (AMD OpenCL for CPU  and intel GPU)
+//get_devices returns all the available opencl devices. Either use device_selector or exclude devices that computecpp does not support (AMD OpenCL for CPU  and intel GPU)
 EIGEN_STRONG_INLINE auto get_sycl_supported_devices()->decltype(cl::sycl::device::get_devices()){
-  auto devices = cl::sycl::device::get_devices();
+std::vector<cl::sycl::device> supported_devices;
-  std::vector<cl::sycl::device>::iterator it =devices.begin();
+auto plafrom_list =cl::sycl::platform::get_platforms();
-  while(it!=devices.end()) {
+for(const auto& platform : plafrom_list){
-    ///FIXME: Currently there is a bug in amd cpu OpenCL
+  auto device_list = platform.get_devices();
-    auto name = (*it).template get_info<cl::sycl::info::device::name>();
+  auto platform_name =platform.template get_info<cl::sycl::info::platform::name>();
-    std::transform(name.begin(), name.end(), name.begin(), ::tolower);
+  std::transform(platform_name.begin(), platform_name.end(), platform_name.begin(), ::tolower);
-    auto vendor = (*it).template get_info<cl::sycl::info::device::vendor>();
+  for(const auto& device : device_list){
+    auto vendor = device.template get_info<cl::sycl::info::device::vendor>();
     std::transform(vendor.begin(), vendor.end(), vendor.begin(), ::tolower);
-
+    bool unsuported_condition = (device.is_cpu() && platform_name.find("amd")!=std::string::npos && vendor.find("apu") == std::string::npos) ||
-    if((*it).is_cpu() && vendor.find("amd")!=std::string::npos && vendor.find("apu") == std::string::npos){ // remove amd cpu as it is not supported by computecpp allow APUs
+    (device.is_gpu() && platform_name.find("intel")!=std::string::npos);
-      it = devices.erase(it);
+    if(!unsuported_condition){
-      //FIXME: currently there is a bug in intel gpu driver regarding memory allignment issue.
+      std::cout << "Platform name "<< platform_name << std::endl;
-    }else if((*it).is_gpu() && name.find("intel")!=std::string::npos){
+        supported_devices.push_back(device);
-      it = devices.erase(it);
-    }
-    else{
-      ++it;
     }
   }
-  return devices;
+}
+return supported_devices;
 }
 
 class QueueInterface {

unsupported/test/CMakeLists.txt

@@ -152,33 +152,40 @@ endif()
 
 if(EIGEN_TEST_CXX11)
   if(EIGEN_TEST_SYCL)
-    ei_add_test_sycl(cxx11_tensor_sycl "-std=c++11")
+    if(EIGEN_SYCL_TRISYCL)
-    ei_add_test_sycl(cxx11_tensor_forced_eval_sycl "-std=c++11")
+      set(CMAKE_CXX_STANDARD 14)
-    ei_add_test_sycl(cxx11_tensor_broadcast_sycl "-std=c++11")
+      set(STD_CXX_FLAG "-std=c++1z")
-    ei_add_test_sycl(cxx11_tensor_device_sycl "-std=c++11")
+    else(EIGEN_SYCL_TRISYCL)
-    ei_add_test_sycl(cxx11_tensor_reduction_sycl "-std=c++11")
+      # It should be safe to always run these tests as there is some fallback code for
-    ei_add_test_sycl(cxx11_tensor_morphing_sycl "-std=c++11")
+      # older compiler that don't support cxx11.
-    ei_add_test_sycl(cxx11_tensor_shuffling_sycl "-std=c++11")
+      set(CMAKE_CXX_STANDARD 11)
-    ei_add_test_sycl(cxx11_tensor_padding_sycl "-std=c++11")
+      set(STD_CXX_FLAG "-std=c++11")
-    ei_add_test_sycl(cxx11_tensor_builtins_sycl "-std=c++11")
+    endif(EIGEN_SYCL_TRISYCL)
-    ei_add_test_sycl(cxx11_tensor_contract_sycl "-std=c++11")
+
-    ei_add_test_sycl(cxx11_tensor_concatenation_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_reverse_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_forced_eval_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_convolution_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_broadcast_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_striding_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_device_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_chipping_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_reduction_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_layout_swap_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_morphing_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_inflation_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_shuffling_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_generator_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_padding_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_patch_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_builtins_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_image_patch_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_contract_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_volume_patcP_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_concatenation_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_argmax_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_reverse_sycl ${STD_CXX_FLAG})
-    ei_add_test_sycl(cxx11_tensor_custom_op_sycl "-std=c++11")
+    ei_add_test_sycl(cxx11_tensor_convolution_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_striding_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_chipping_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_layout_swap_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_inflation_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_generator_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_patch_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_image_patch_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_volume_patch_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_argmax_sycl ${STD_CXX_FLAG})
+    ei_add_test_sycl(cxx11_tensor_custom_op_sycl ${STD_CXX_FLAG})
   endif(EIGEN_TEST_SYCL)
-  # It should be safe to always run these tests as there is some fallback code for
-  # older compiler that don't support cxx11.
-  set(CMAKE_CXX_STANDARD 11)
 
   ei_add_test(cxx11_eventcount "-pthread" "${CMAKE_THREAD_LIBS_INIT}")
   ei_add_test(cxx11_runqueue "-pthread" "${CMAKE_THREAD_LIBS_INIT}")