a2o
The A2O core was a follow-on to A2I, written in Verilog, and supported a lower thread count than A2I, but higher performance per thread, using out-of-order execution (register renaming, reservation stations, completion buffer) and a store queue. It is now being updated for compliancy and integration into open projects. (by OpenPOWERFoundation)
a2i
The A2I core was used as the general purpose processor for BlueGene/Q, the successor to BlueGene/L and BlueGene/P supercomputers (by OpenPOWERFoundation)
| a2o | a2i | |
|---|---|---|
| 2 | 3 | |
| 35 | 27 | |
| - | - | |
| 1.4 | 10.0 | |
| 3 months ago | over 1 year ago | |
| Verilog | VHDL | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
a2o
Posts with mentions or reviews of a2o.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-24.
-
Arm wants to charge dramatically more for chip licenses
Yes, there are open core IPs for POWER:
- https://github.com/OpenPOWERFoundation/a2i
- https://github.com/OpenPOWERFoundation/a2o
- https://github.com/antonblanchard/microwatt
- How long until RISC gets adopted for the desktop?
a2i
Posts with mentions or reviews of a2i.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-24.
-
Arm wants to charge dramatically more for chip licenses
Yes, there are open core IPs for POWER:
- https://github.com/OpenPOWERFoundation/a2i
- https://github.com/OpenPOWERFoundation/a2o
- https://github.com/antonblanchard/microwatt
- How long until RISC gets adopted for the desktop?
- The A2I core was used as the general purpose processor for BlueGene/Q
What are some alternatives?
When comparing a2o and a2i you can also consider the following projects:
ice40_power - Power analysis of the ICE40UP5K-SG48 devices
microwatt - A tiny Open POWER ISA softcore written in VHDL 2008
xcat-core - Code repo for xCAT core packages
kianRiscV - RISC-V Linux SoC, marchID: 0x2b