Add float test set

test/cuda_jamfile

@@ -14,6 +14,7 @@ run test_exp_sinh_quad_float.cu ;
 run test_exp_sinh_quad_double.cu ;
 run test_sinh_sinh_quad_float.cu ;
 run test_sinh_sinh_quad_double.cu ;
+run test_tanh_sinh_quad_float.cu ;
 
 # Distributions
 run test_arcsine.cpp ;

test/test_tanh_sinh_quad_float.cu

@@ -0,0 +1,133 @@
+
+//  Copyright John Maddock 2016.
+//  Copyright Matt Borland 2024.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <iostream>
+#include <iomanip>
+#include <vector>
+#include <boost/math/quadrature/tanh_sinh.hpp>
+#include <boost/math/special_functions.hpp>
+#include <boost/math/tools/precision.hpp>
+#include "cuda_managed_ptr.hpp"
+#include "stopwatch.hpp"
+
+// For the CUDA runtime routines (prefixed with "cuda_")
+#include <cuda_runtime.h>
+
+typedef float float_type;
+
+__host__ __device__ float_type func(float_type x, float_type y)
+{
+    BOOST_MATH_STD_USING
+    return 1/(1+x*y);
+}
+
+/**
+ * CUDA Kernel Device code
+ *
+ */
+__global__ void cuda_test(float_type *out, int numElements)
+{
+    int i = blockDim.x * blockIdx.x + threadIdx.x;
+    float_type tol = boost::math::tools::root_epsilon<float_type>();
+    float_type error;
+    float_type L1;
+    boost::math::size_t levels;
+
+    if (i < numElements)
+    {
+        out[i] = boost::math::quadrature::tanh_sinh_integrate(func, tol, &error, &L1, &levels);
+    }
+}
+
+/**
+ * Host main routine
+ */
+int main(void)
+{
+    // Error code to check return values for CUDA calls
+    cudaError_t err = cudaSuccess;
+
+    // Print the vector length to be used, and compute its size
+    int numElements = 50000;
+    std::cout << "[Vector operation on " << numElements << " elements]" << std::endl;
+
+    // Allocate the managed input vector A
+    cuda_managed_ptr<float_type> input_vector(numElements);
+
+    // Allocate the managed output vector C
+    cuda_managed_ptr<float_type> output_vector(numElements);
+
+    // Initialize the input vectors
+    for (int i = 0; i < numElements; ++i)
+    {
+        input_vector[i] = M_PI * (static_cast<float_type>(i) / numElements);
+    }
+
+    // Launch the Vector Add CUDA Kernel
+    int threadsPerBlock = 512;
+    int blocksPerGrid = (numElements + threadsPerBlock - 1) / threadsPerBlock;
+    std::cout << "CUDA kernel launch with " << blocksPerGrid << " blocks of " << threadsPerBlock << " threads" << std::endl;
+
+    watch w;
+
+    cuda_test<<<blocksPerGrid, threadsPerBlock>>>(output_vector.get(), numElements);
+    cudaDeviceSynchronize();
+
+    std::cout << "CUDA kernal done in: " << w.elapsed() << "s" << std::endl;
+
+    err = cudaGetLastError();
+
+    if (err != cudaSuccess)
+    {
+        std::cerr << "Failed to launch vectorAdd kernel (error code " << cudaGetErrorString(err) << ")!" << std::endl;
+        return EXIT_FAILURE;
+    }
+
+    // Verify that the result vector is correct
+    std::vector<float_type> results;
+    results.reserve(numElements);
+    w.reset();
+    float_type tol = boost::math::tools::root_epsilon<float_type>();
+    float_type error;
+    float_type L1;
+    boost::math::quadrature::tanh_sinh<float_type> integrator;
+    for(int i = 0; i < numElements; ++i)
+    {
+       results.push_back(integrator.integrate(func, tol, &error, &L1));
+    }
+    double t = w.elapsed();
+    // check the results
+    int failed_count = 0;
+    for(int i = 0; i < numElements; ++i)
+    {
+        const auto eps = boost::math::epsilon_difference(output_vector[i], results[i]);
+        if (eps > 10)
+        {
+            std::cerr   << std::setprecision(std::numeric_limits<float_type>::digits10)
+                        << "Result verification failed at element " << i << "!\n"
+                        << "Device: " << output_vector[i]
+                        << "\n  Host: " << results[i]
+                        << "\n   Eps: " << eps << "\n";
+            failed_count++;
+        }
+        if (failed_count > 100)
+        {
+            break;
+        }
+    }
+
+    if (failed_count != 0)
+    {
+        std::cout << "Test FAILED" << std::endl;
+        return EXIT_FAILURE;
+    }
+
+    std::cout << "Test PASSED, normal calculation time: " << t << "s" << std::endl;
+    std::cout << "Done\n";
+
+    return 0;
+}