CompiledProgram¶

# 首先创建 Executor。
place = fluid.CUDAPlace(0) if use_cuda else fluid.CPUPlace()
exe = fluid.Executor(place)
# 运行启动程序仅一次。
exe.run(fluid.default_startup_program())

# 直接运行主程序，无需编译。
loss = exe.run(fluid.default_main_program(),
                feed=feed_dict,
                fetch_list=[loss.name])

# 或者编译程序后用优化过的 Program 运行模型。
build_strategy = fluid.BuildStrategy()
build_strategy.memory_optimize = True if memory_opt else False
compiled_prog = compiler.CompiledProgram(
    fluid.default_main_program(),
    build_strategy=build_strategy)
loss, = exe.run(compiled_prog,
                feed=feed_dict,
                fetch_list=[loss.name])