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Add deprecated memory optimize doc (#20111)

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* add deprecated memory optimize doc, test=develop, test=document_fix

* merge develop to solve conflict, test=develop, test=document_fix
fix-python-transpose
Zeng Jinle 5 years ago committed by GitHub
parent 5fef859c65
commit 5f2290ab84
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 8 additions and 77 deletions
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8
paddle/fluid/API.spec
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@ -42,8 +42,8 @@ paddle.fluid.DistributeTranspiler.get_pserver_programs (ArgSpec(args=['self', 'e
paddle.fluid.DistributeTranspiler.get_startup_program (ArgSpec(args=['self', 'endpoint', 'pserver_program', 'startup_program'], varargs=None, keywords=None, defaults=(None, None)), ('document', '90a40b80e0106f69262cc08b861c3e39'))
paddle.fluid.DistributeTranspiler.get_trainer_program (ArgSpec(args=['self', 'wait_port'], varargs=None, keywords=None, defaults=(True,)), ('document', '0e47f020304e2b824e87ff03475c17cd'))
paddle.fluid.DistributeTranspiler.transpile (ArgSpec(args=['self', 'trainer_id', 'program', 'pservers', 'trainers', 'sync_mode', 'startup_program', 'current_endpoint'], varargs=None, keywords=None, defaults=(None, '127.0.0.1:6174', 1, True, None, '127.0.0.1:6174')), ('document', '418c7e8b268e9be4104f2809e654c2f7'))
paddle.fluid.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, True)), ('document', '2348247f684bfd5bb9466470f35be064'))
paddle.fluid.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', 'd38c5b8b2b2e0bb19bcf1b581a80a7e4'))
paddle.fluid.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, True)), ('document', '2be29dc8ecdec9baa7728fb0c7f80e24'))
paddle.fluid.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', '2be29dc8ecdec9baa7728fb0c7f80e24'))
paddle.fluid.DistributeTranspilerConfig ('paddle.fluid.transpiler.distribute_transpiler.DistributeTranspilerConfig', ('document', 'beac6f89fe97eb8c66a25de5a09c56d2'))
paddle.fluid.DistributeTranspilerConfig.__init__ (ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))
paddle.fluid.ParallelExecutor ('paddle.fluid.parallel_executor.ParallelExecutor', ('document', '2b4d2e859f2e0c6161f4fed995f7956d'))
@ -891,8 +891,8 @@ paddle.fluid.transpiler.DistributeTranspiler.get_pserver_programs (ArgSpec(args=
paddle.fluid.transpiler.DistributeTranspiler.get_startup_program (ArgSpec(args=['self', 'endpoint', 'pserver_program', 'startup_program'], varargs=None, keywords=None, defaults=(None, None)), ('document', '90a40b80e0106f69262cc08b861c3e39'))
paddle.fluid.transpiler.DistributeTranspiler.get_trainer_program (ArgSpec(args=['self', 'wait_port'], varargs=None, keywords=None, defaults=(True,)), ('document', '0e47f020304e2b824e87ff03475c17cd'))
paddle.fluid.transpiler.DistributeTranspiler.transpile (ArgSpec(args=['self', 'trainer_id', 'program', 'pservers', 'trainers', 'sync_mode', 'startup_program', 'current_endpoint'], varargs=None, keywords=None, defaults=(None, '127.0.0.1:6174', 1, True, None, '127.0.0.1:6174')), ('document', '418c7e8b268e9be4104f2809e654c2f7'))
paddle.fluid.transpiler.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, True)), ('document', '2348247f684bfd5bb9466470f35be064'))
paddle.fluid.transpiler.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', 'd38c5b8b2b2e0bb19bcf1b581a80a7e4'))
paddle.fluid.transpiler.memory_optimize (ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level', 'skip_grads'], varargs=None, keywords=None, defaults=(None, False, 0, True)), ('document', '2be29dc8ecdec9baa7728fb0c7f80e24'))
paddle.fluid.transpiler.release_memory (ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,)), ('document', '2be29dc8ecdec9baa7728fb0c7f80e24'))
paddle.fluid.transpiler.HashName ('paddle.fluid.transpiler.ps_dispatcher.HashName', ('document', '8190ddc66ee412441f5d97fd3f702bdd'))
paddle.fluid.transpiler.HashName.__init__ (ArgSpec(args=['self', 'pserver_endpoints'], varargs=None, keywords=None, defaults=None), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))
paddle.fluid.transpiler.HashName.dispatch (ArgSpec(args=['self', 'varlist'], varargs=None, keywords=None, defaults=None), ('document', '6adf97f83acf6453d4a6a4b1070f3754'))

77
python/paddle/fluid/transpiler/memory_optimization_transpiler.py
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@ -21,56 +21,8 @@ def memory_optimize(input_program,
level=0,
skip_grads=True):
"""
| Legacy memory optimization strategy, reduce total memory consumption by reuse variable memory between different operators.
| Simple sample to explain the algorithm:
.. code-block:: python
c = a + b # assume this is the last time a is used
d = b * c
| since **a** will not be used anymore after **"c = a + b"**, and the size of **a** and **d** are the same,
we can use variable **a** to replace variable **d**, so actually we can optimize the above code to below:
.. code-block:: python
c = a + b
a = b * c
| Please notice that, in this legacy design, we are using variable **a** to replace **d** directly, which means
after you call this API, some variables may disappear, and some variables may hold unexpected values, like
the above case, actually **a** holds the value of **d** after execution.
| So to protect important variables from being reused/removed in the optimization, we provide skip_opt_set
to allow you specify a variable whitelist.
The variables in the skip_opt_set will not be affected by memory_optimize API.
Note:
| **This API is deprecated, please avoid to use it in your new code.**
| Does not support operators which will create sub-block like While, IfElse etc.
Args:
input_program(str): Input Program
skip_opt_set(set): vars wil be skipped in memory optimze
print_log(bool): whether to print debug log.
level(int): 0 or 1, 0 means we replace a with b only when a.size == b.size, 1 means we can replace a with b if a.size <= b.size
Returns:
None
Examples:
.. code-block:: python
import paddle.fluid as fluid
main_prog = fluid.Program()
startup_prog = fluid.Program()
place = fluid.CPUPlace()
exe = fluid.Executor(place)
exe.run(startup_prog)
fluid.memory_optimize(main_prog)
This API is deprecated since 1.6. Please do not use it. The better
memory optimization strategies are enabled by default.
"""
logging.warn(
'Caution! paddle.fluid.memory_optimize() is deprecated '
@ -89,29 +41,8 @@ def memory_optimize(input_program,
def release_memory(input_program, skip_opt_set=None):
"""
Modify the input program and insert :code:`delete_op` to early drop not used
variables. The modification will be performed inplace.
Notes: This is an experimental API and could be removed in next few
releases. Users should not use this API.
Args:
input_program(Program): The program will be inserted :code:`delete_op`.
skip_opt_set(set): vars wil be skipped in memory optimze
Returns:
None
Examples:
.. code-block:: python
import paddle.fluid as fluid
# build network
# ...
# deprecated API
fluid.release_memory(fluid.default_main_program())
This API is deprecated since 1.6. Please do not use it. The better
memory optimization strategies are enabled by default.
"""
logging.warn('paddle.fluid.release_memory() is deprecated, it would not'
' take any memory release on your program')

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