Shared memory array API and optional tight integration with numpy
#338
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
14 tasks
goodboy
changed the title
numpynumpy
|
See issue regarding OSX support here: #340 |
goodboy
force-pushed
the
shm_apis
branch
2 times, most recently
from
d3e1722 to
8d12858
Compare
More or less a verbatim copy-paste minus some edgy variable naming and internal `piker` module imports. There is a bunch of OHLC related defaults that need to be dropped and we need to adjust to an optional dependence on `numpy` by supporting shared lists as per the mp docs.
First attempt at getting `multiprocessing.shared_memory.ShareableList` working; we wrap the stdlib type with a readonly attr and a `.key` for cross-actor lookup. Also, rename all `numpy` specific routines to have a `ndarray` suffix in the func names.
Demonstrates fixed size frame-oriented reads by the child where the parent only transmits a "read" stream msg on "frame fill events" such that the child incrementally reads the shm list data (much like in a real-time-buffered streaming system).
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Initial module import from
piker.data._sharememand first implementation of the system(s) discussed in #339.Would like to have done for this to land:
OSError: [Errno 63] File name too long:pikers/piker#306 andOSError: too many files openon linux pikers/piker#332ShareableListnumpy.ndarraysupportnptypingto getmypyhappy (as possible)numpyandShmListtype