Device methods that create resources or synchronize now act on that
device’s bound context, even when another device is current. They do not
change which device is current. For example, dev1.sync() synchronizes
device 1’s bound context even when device 0 is current, and no longer
touches other contexts on device 1 (such as a green context). Device.set_current()
now always returns a Context with the correct device ID; passing a
context created on a different device than the receiver now delegates to
that device’s own set_current() instead of raising, so a
context this method returns can always be pushed back through any
Device object.
(#2311)
Stream.wait() given a stream now works when that stream belongs to a
device that is not current. The temporary ordering event is created in the
waited-on stream’s context rather than the current one, which
cuEventRecord rejects when the two differ. The stream ordering applied
when importing foreign arrays and tensors uses the producer stream’s context
the same way.
(#2311)
LegacyPinnedMemoryResource.device_id now returns -1, as
documented for memory that is not bound to a device and as
PinnedMemoryResource already does, instead of raising
RuntimeError. Buffer.device_id on such a buffer returns -1
as well, which also lets a pinned buffer back a linear or pitched texture
resource.
