sigmoid.cpp

#include <migraphx/gpu/sigmoid.hpp>
#include <migraphx/operators.hpp>
#include <migraphx/manage_ptr.hpp>
#include <migraphx/gpu/miopen.hpp>
#include <utility>

namespace migraphx {
inline namespace MIGRAPH_INLINE_NS {
namespace gpu {

shape miopen_sigmoid::compute_shape(const std::vector<shape>& inputs) const
{
    check_shapes{inputs, *this}.has(2).not_broadcasted();
    return inputs.at(1);
}

argument miopen_sigmoid::compute(context& ctx,
                                 const shape& output_shape,
                                 const std::vector<argument>& args) const
{
    float alpha = 1, beta = 0;
    auto x_desc = make_tensor(args[0].get_shape());
    auto y_desc = make_tensor(output_shape);
    miopenActivationForward(ctx.get_stream().get_miopen(),
                            ad.get(),
                            &alpha,
                            x_desc.get(),
                            args[0].implicit(),
                            &beta,
                            y_desc.get(),
                            args[1].implicit());

    return args[1];
}

} // namespace gpu
} // namespace MIGRAPH_INLINE_NS
} // namespace migraphx