Summary:
Advantages of cloning the tasks/execution_steps at runtime:
- Less complexity on the python side: no need to clone nets and add prefixes to blob names
- Faster start-up: we had cases of complex plans that took up to 30min to be created.
- Better isolation: each task cloned at runtime has its own child workspace, preventing false sharing of blobs.
- Opens up possibility for dynamic scheduling: Number of threads per task can be increased on the fly, at runtime.
Reviewed By: dzhulgakov
Differential Revision: D5100730
fbshipit-source-id: 71b83193b135da4e6eaf2536d8fc266528e1fdcc
Summary: These return views in Python 3 which would not do anything in a lot of usages currently present in Caffe2. This diff simply removes (almost) all usages of these two in Caffe2 and sub projects in favor of comprehensions which are also easier to read/understand
Reviewed By: akyrola
Differential Revision: D5142049
fbshipit-source-id: e800631d2df7d0823fed698cae46c486038007dc
Summary:
These are all essentially no-op changes which allow for nose-style (or pytest-style) test discovery.
With this patch, you can use any of these methods to discover and run tests under `caffe2/python`:
```
python -m unittest discover -p '*test*.py' caffe2/python/
python -m nose caffe2/python/
python -m pytest caffe2/python/
```
Future work:
* Get all of the tests to pass
* Some seem to be testing operations which don't have GPU implementations
* I get a segfault unless I set `CUDA_VISIBLE_DEVICES=0`
* Some tests are flaky
* Allow test discovery throughout the whole project (e.g. the `experiments/` dir)
Closes https://github.com/caffe2/caffe2/pull/199
Reviewed By: pietern
Differential Revision: D4704504
Pulled By: Yangqing
fbshipit-source-id: 8f5687ec9c8aa873dfaff30dbf44272bc38a206b
