From c5130dedbe67004895e515b82657c21343719a6d Mon Sep 17 00:00:00 2001
From: Luke Iwanski <luke@codeplay.com>
Date: Thu, 17 Nov 2016 11:47:13 +0000
Subject: Specialised basic math functions for SYCL device.

---
 unsupported/test/cxx11_tensor_builtins_sycl.cpp | 83 +++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 unsupported/test/cxx11_tensor_builtins_sycl.cpp

(limited to 'unsupported/test/cxx11_tensor_builtins_sycl.cpp')

diff --git a/unsupported/test/cxx11_tensor_builtins_sycl.cpp b/unsupported/test/cxx11_tensor_builtins_sycl.cpp
new file mode 100644
index 000000000..aed4e47e4
--- /dev/null
+++ b/unsupported/test/cxx11_tensor_builtins_sycl.cpp
@@ -0,0 +1,83 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2016
+// Mehdi Goli    Codeplay Software Ltd.
+// Ralph Potter  Codeplay Software Ltd.
+// Luke Iwanski  Codeplay Software Ltd.
+// Contact: <eigen@codeplay.com>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#define EIGEN_TEST_NO_LONGDOUBLE
+#define EIGEN_TEST_NO_COMPLEX
+#define EIGEN_TEST_FUNC cxx11_tensor_builtins_sycl
+#define EIGEN_DEFAULT_DENSE_INDEX_TYPE int
+#define EIGEN_USE_SYCL
+
+#include "main.h"
+#include <unsupported/Eigen/CXX11/Tensor>
+
+using Eigen::array;
+using Eigen::SyclDevice;
+using Eigen::Tensor;
+using Eigen::TensorMap;
+
+namespace std
+{
+  template<typename T> T rsqrt(T x) { return 1/std::sqrt(x); }
+  template<typename T> T square(T x) { return x*x; }
+  template<typename T> T cube(T x) { return x*x*x; }
+  template<typename T> T inverse(T x) { return 1/x; }
+}
+
+#define TEST_UNARY_BUILTINS_FOR_SCALAR(FUNC, SCALAR)                                            \
+{                                                                                               \
+  Tensor<SCALAR, 3> in1(tensorRange);                                                           \
+  Tensor<SCALAR, 3> out1(tensorRange);                                                          \
+  in1 = in1.random();                                                                           \
+  SCALAR* gpu_data1  = static_cast<SCALAR*>(sycl_device.allocate(in1.size()*sizeof(SCALAR)));   \
+  TensorMap<Tensor<SCALAR, 3>> gpu1(gpu_data1, tensorRange);                                    \
+  sycl_device.memcpyHostToDevice(gpu_data1, in1.data(),(in1.size())*sizeof(SCALAR));            \
+  gpu1.device(sycl_device) = gpu1.FUNC();                                                       \
+  sycl_device.memcpyDeviceToHost(out1.data(), gpu_data1,(out1.size())*sizeof(SCALAR));          \
+  for (int i = 0; i < in1.size(); ++i) {                                                        \
+    VERIFY_IS_APPROX(out1(i), std::FUNC(in1(i)));                                               \
+  }                                                                                             \
+  sycl_device.deallocate(gpu_data1);                                                            \
+} 
+
+#define TEST_UNARY_BUILTINS(SCALAR)               \
+TEST_UNARY_BUILTINS_FOR_SCALAR(abs, SCALAR)       \
+TEST_UNARY_BUILTINS_FOR_SCALAR(sqrt, SCALAR)      \
+TEST_UNARY_BUILTINS_FOR_SCALAR(rsqrt, SCALAR)     \
+TEST_UNARY_BUILTINS_FOR_SCALAR(square, SCALAR)    \
+TEST_UNARY_BUILTINS_FOR_SCALAR(cube, SCALAR)      \
+TEST_UNARY_BUILTINS_FOR_SCALAR(inverse, SCALAR)   \
+TEST_UNARY_BUILTINS_FOR_SCALAR(tanh, SCALAR)      \
+TEST_UNARY_BUILTINS_FOR_SCALAR(exp, SCALAR)       \
+TEST_UNARY_BUILTINS_FOR_SCALAR(log, SCALAR)       \
+TEST_UNARY_BUILTINS_FOR_SCALAR(abs, SCALAR)       \
+TEST_UNARY_BUILTINS_FOR_SCALAR(ceil, SCALAR)      \
+TEST_UNARY_BUILTINS_FOR_SCALAR(floor, SCALAR)     \
+TEST_UNARY_BUILTINS_FOR_SCALAR(round, SCALAR)     \
+TEST_UNARY_BUILTINS_FOR_SCALAR(log1p, SCALAR)
+
+static void test_builtin_unary_sycl(const Eigen::SyclDevice &sycl_device){
+  int sizeDim1 = 100;
+  int sizeDim2 = 100;
+  int sizeDim3 = 100;
+  array<int, 3> tensorRange = {{sizeDim1, sizeDim2, sizeDim3}};
+
+  TEST_UNARY_BUILTINS(float)
+  TEST_UNARY_BUILTINS(double)
+}
+
+
+void test_cxx11_tensor_builtins_sycl() {
+  cl::sycl::gpu_selector s;
+  Eigen::SyclDevice sycl_device(s);
+  CALL_SUBTEST(test_builtin_unary_sycl(sycl_device));
+}
-- 
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