program_guard¶
- api_attr
declarative programming (static graph)
-
paddle.fluid.
program_guard
(main_program, startup_program=None)[source] Change the global main program and startup program with “with” statement. Layer functions in the Python “with” block will append operators and variables to the new main programs.
- Parameters
main_program (Program) – New main program inside “with” statement.
startup_program (Program, optional) – New startup program inside “with” statement.
None
means not changing startup program, default_startup_program is still used. Default: None.
Examples
import paddle.fluid as fluid main_program = fluid.Program() startup_program = fluid.Program() with fluid.program_guard(main_program, startup_program): data = fluid.data(name='image', shape=[None, 784, 784], dtype='float32') hidden = fluid.layers.fc(input=data, size=10, act='relu')
Notes: The temporary
Program
can be used if the user does not need to construct either of startup program or main program.Examples
import paddle.fluid as fluid main_program = fluid.Program() # does not care about startup program. Just pass a temporary value. with fluid.program_guard(main_program, fluid.Program()): data = fluid.data(name='image', shape=[None, 784, 784], dtype='float32')