You can download the Verilog RTL (Register Transfer Level) code for the OpenSPARC T2 directly from Oracle's website for free.
The most "useful piece" for developers and researchers is the source code for the processor itself. opensparc t2 buy
For those who want to "run" the open-source code without buying a massive server, FPGAs are the standard route. You can download the Verilog RTL (Register Transfer
These servers house the UltraSPARC T2, which features 8 cores and up to 64 concurrent threads. opensparc t2 buy
If you are a collector or need a running OS, buy a used T5120 server . If you are a hardware engineer, download the Verilog RTL files from Oracle's OpenSPARC page to study the multi-threading architecture.
Import the opensparc t2 core · Issue #628 · enjoy-digital/litex