Notable changes:
- StackReq methods no longer returns Result<StackReq, SizeOverflow>
instead, StackReq contains the invalid state.
Now, its when we create a PodBuffer that we can check/catch if the
size req is invalid by catching errors when calling
`PodBuffer::try_new`. Its also possible to manually check that
`stack_req != StackReq::OVERFLOW`
- GlobalaPodBuffer is now PodBuffer
Done to circumvent criterion limitation regarding automatic
truncation of long benchmark ID.
Using a println() call we ensure the complete name is displayed
before benchmark execution to ease manual parsing and debugging.
This backend abstract communication with Hpu Fpga hardware.
It define it's proper entities to prevent circular dependencies with
tfhe-rs.
Object lifetime is handle through Arc<Mutex<T>> wrapper, and enforce
that all objects currently alive in Hpu Hw are also kept valid on the
host side.
It contains the second version of HPU instruction set (HIS_V2.0):
* DOp have following properties:
+ Template as first class citizen
+ Support of Immediate template
+ Direct parser and conversion between Asm/Hex
+ Replace deku (and it's associated endianess limitation) by
+ bitfield_struct and manual parsing
* IOp have following properties:
+ Support various number of Destination
+ Support various number of Sources
+ Support various number of Immediat values
+ Support of multiple bitwidth (Not implemented yet in the Fpga
firmware)
Details could be view in `backends/tfhe-hpu-backend/Readme.md`
