test_rnn_forward.cpp

#include "verify_program.hpp"
#include <migraphx/program.hpp>
#include <migraphx/generate.hpp>
#include <migraphx/operators.hpp>

struct test_rnn_forward : verify_program<test_rnn_forward>
{
    migraphx::program create_program() const
    {
        std::size_t batch_size  = 2;
        std::size_t seq_len     = 1;
        std::size_t hidden_size = 4;
        std::size_t input_size  = 3;
        std::size_t num_dirct   = 1;
        float clip              = 0.0f;

        migraphx::program p;
        auto* mm = p.get_main_module();
        migraphx::shape in_shape{migraphx::shape::float_type, {seq_len, batch_size, input_size}};
        migraphx::shape w_shape{migraphx::shape::float_type, {num_dirct, hidden_size, input_size}};
        migraphx::shape r_shape{migraphx::shape::float_type, {num_dirct, hidden_size, hidden_size}};
        migraphx::shape b_shape{migraphx::shape::float_type, {num_dirct, 2 * hidden_size}};
        migraphx::shape ih_shape{migraphx::shape::float_type, {num_dirct, batch_size, hidden_size}};

        auto seq  = mm->add_parameter("seq", in_shape);
        auto w    = mm->add_parameter("w", w_shape);
        auto r    = mm->add_parameter("r", r_shape);
        auto bias = mm->add_parameter("bias", b_shape);
        auto ih   = mm->add_parameter("ih", ih_shape);
        auto und  = mm->add_instruction(migraphx::op::undefined{});

        auto hs =
            mm->add_instruction(migraphx::op::rnn{hidden_size,
                                                  {migraphx::op::tanh{}, migraphx::op::tanh{}},
                                                  migraphx::op::rnn_direction::forward,
                                                  clip},
                                seq,
                                w,
                                r,
                                bias,
                                und,
                                ih);
        auto lho = mm->add_instruction(migraphx::op::rnn_last_hs_output{}, hs);
        mm->add_return({hs, lho});

        return p;
    }
    std::string section() const { return "rnn"; }
};