* implement TransferTo{Host,Device}Mapper

* do not support transfer to same type

* use {to,from}_numpy

* lint fixes

* add comment

* ruff

* disable spurious pylint warning

* add to docs

* more doc fixes

* datawrapper doc

* more doc fixes

* Improve mapper names

* Bring back numpy actx constructor docs

---------

Co-authored-by: Andreas Kloeckner <inform@tiker.net>

* LazilyPyOpenCLCompilingFunctionCaller: limit arg size for GPUs

* move limit

* also check for SVM presence

* get_target()

* memoize get_target

* UNDO BEFORE MERGE: use dev branches

* Hackety hack: SVM detection in actx constructor

* check whether passed allocator supports SVM

* undo loopy branch

* implement it for the base class

* subclass LoopyPyOpenCLTarget

* set actual limit

* undo pytato branch

* remove unused argument

* add type annotations

* add logging

* Refactor arg size passing to put less logic in the target

* flake8

* add a test

Co-authored-by: Andreas Kloeckner <inform@tiker.net>

Alexandru Fikl authored 2 years ago and Andreas Klöckner committed 2 years ago

* adds an is_available to check is the array context works
* do not create a factory per CL device, since that does not
quite work for non-CL array contexts