fill_strict_tri.hpp

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#ifndef STAN_MATH_OPENCL_KERNELS_FILL_STRICT_TRI_HPP
#define STAN_MATH_OPENCL_KERNELS_FILL_STRICT_TRI_HPP
#ifdef STAN_OPENCL
 
#include <stan/math/opencl/kernel_cl.hpp>
#include <stan/math/opencl/buffer_types.hpp>
#include <stan/math/opencl/matrix_cl_view.hpp>
#include <string>
 
namespace stan {
namespace math {
namespace opencl_kernels {
// \cond
static constexpr const char* fill_strict_tri_kernel_code = STRINGIFY(
    // \endcond
    __kernel void fill_strict_tri(__global double* A, double val,
                                  unsigned int rows, unsigned int cols,
                                  unsigned int view_A) {
      const int i = get_global_id(0);
      const int j = get_global_id(1);
      if (i < rows && j < cols) {
        if ((view_A == LOWER && j < i) || (view_A == UPPER && j > i)
            || view_A == ENTIRE) {
          A(i, j) = val;
        }
      }
    }
    // \cond
);
// \endcond
 
const kernel_cl<out_buffer, double, int, int, matrix_cl_view> fill_strict_tri(
    "fill_strict_tri",
    {indexing_helpers, view_kernel_helpers, fill_strict_tri_kernel_code});
 
}  // namespace opencl_kernels
}  // namespace math
}  // namespace stan
#endif
#endif