Mojo function
warpgroup_reg_dealloc
warpgroup_reg_dealloc[count: Int]()
Deallocates additional registers for the executing warp group.
Hints to the system to decrease per-thread registers owned by the executing warp. Releases extra registers to reduce the absolute per-thread maximum register count from its current value to the specified count.
Note:
- Only supported on NVIDIA SM90+ GPUs.
- Performance optimization hint that may be ignored by the hardware.
- Pair with warpgroup_reg_alloc()
when extra registers are needed.
Parameters:
- count (
Int
): The desired number of registers per thread. Must be: - A multiple of 8. - Between 24 and 256 (inclusive).
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