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Feature/switch program #5932

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Merged
merged 13 commits into from
Nov 30, 2017
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reyoung
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@reyoung reyoung commented Nov 27, 2017

Second step of #5929.
Fix #5929.

Please review #5930 first.

Change books just use `import fluid`, not submodules
Use default_main_program/default_startup_program instead
* Two functions: switch_main_program/switch_startup_program
* A guard: program_guard. Users can use the `with` statement change
  default programs
* Change unittests in `test_layers`
@reyoung reyoung added this to the Release 0.11.0 milestone Nov 27, 2017
@reyoung reyoung requested a review from QiJune November 29, 2017 09:24
global _main_program_
prev_program = _main_program_
_main_program_ = program
return prev_program
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Here, why return prev_program, not _main_program_? We are switch to a new program, not previous one

Get default main program. The main program is used for training or testing.

Returns:
Program: main program
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Why we need this default_main_program() function, not use _main_program_ directly?

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LGTM

@reyoung reyoung merged commit ac596a3 into PaddlePaddle:develop Nov 30, 2017
@reyoung reyoung deleted the feature/switch_program branch December 26, 2017 09:26
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2 participants