On 05/19/2018 05:58 PM, Blair Bethwaite wrote:
G'day Jay,
On 20 May 2018 at 08:37, Jay Pipes <jaypi...@gmail.com> wrote:
If it's not the VM or baremetal machine that is using the accelerator, what
is?
It will be a VM or BM, but I don't think accelerators should be tied
to the life of a single instance if that isn't technically necessary
(i.e., they are hot-pluggable devices). I can see plenty of scope for
use-cases where Cyborg is managing devices that are accessible to
compute infrastructure via network/fabric (e.g. rCUDA or dedicated
PCIe fabric). And even in the simple pci passthrough case (vfio or
mdev) it isn't hard to imagine use-cases for workloads that only need
an accelerator sometimes.
Currently nova only supports attach/detach of volumes and network interfaces.
Is Cyborg looking to implement new Compute API operations to support hot
attach/detach of various types of accelerators?
Chris
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