divide_columns.hpp

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#ifndef STAN_MATH_OPENCL_PRIM_DIVIDE_COLUMNS_HPP
#define STAN_MATH_OPENCL_PRIM_DIVIDE_COLUMNS_HPP
#ifdef STAN_OPENCL
 
#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/err.hpp>
#include <stan/math/opencl/matrix_cl.hpp>
#include <stan/math/opencl/kernels/divide_columns.hpp>
#include <stan/math/opencl/err.hpp>
#include <CL/opencl.hpp>
 
namespace stan {
namespace math {
 
template <typename T1, typename T2, typename = require_all_arithmetic_t<T1, T2>>
inline void divide_columns(matrix_cl<T1>& A, const matrix_cl<T2>& B) {
  if (A.size() == 0 || B.size() == 0) {
    return;
  }
  check_size_match("divide_columns", "A mod B", A.size() % B.size(), "B mod",
                   0);
  check_vector("divide_columns", "B", B);
  try {
    opencl_kernels::divide_columns_vec(cl::NDRange(A.size()), A, B, B.size());
  } catch (const cl::Error& e) {
    check_opencl_error("divide_columns", e);
  }
}
 
template <typename T1, typename T2, typename = require_all_arithmetic_t<T1, T2>>
inline void divide_columns(matrix_cl<T1>& A, const T2& divisor) {
  A = elt_divide(A, divisor);
}
 
}  // namespace math
}  // namespace stan
 
#endif
#endif