zqb-all wrote:

> Regarding accessing these cores, are kernel changes needed to support thread 
> scheduling described in the doc?

Yes, kernel modifications are required to support thread scheduling for the SMP 
X100/A100 cores as described. However, the specific kernel patches implementing 
this support are not yet open-sourced.
The BSP team is currently exploring whether better approaches exist to enable 
scheduling for X100/A100 cores. Consequently, the implementation may undergo 
further adjustments before its final open-source release.
For the current method of scheduling processes onto A100 cores (already 
implemented in some internal/test kernels), you can refer to community notes 
from users who participated in the K3 tests:
https://github.com/sanderjo/SpacemiT-K3-X100-A100/tree/main
It remains unclear whether the final upstream kernel will support this scenario 
of asymmetric vlen heterogeneity.



https://github.com/llvm/llvm-project/pull/174052
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