kitecats

Thank you for explaining the issue and the planned resolution. We understand the current limitations of `copy_if()` and will await the updated version for further testing.

When I run this example, I also fail to get the correct result: ``` ./example23 --split-k-slices=2 --parallel-split-k ERROR - results miscompared. ID,M,N,K,SplitK-Slices,Parallel-SplitK,Runtime gemm_1,1024,1024,1024,2,1,0 ```