schema_version = "1.1" [task] name = "mle-bench/mixed-precision-gemm-split" description = "INT8 activations break on transformers because a handful of input channels carry values 20x larger than everything else. The fix that actually ships โ€” LLM.int8(), Atom, and every outlier-aware W8A8 stack โ€” is to split the contraction axis: the few high-magnitude channels stay bf16, all the rest go to int8 with per-token and per-channel scales, and the two partial products are summed. Run as two library calls it costs two extra full-size passes over the output; fused it is one mainloop with two operand types and one epilogue." authors = [] keywords = ["mle", "kernel-generation", "int8", "mixed-precision", "llm-int8", "outlier", "quantization", "gemm", "low-precision", "split-k"] [metadata] suite = "mle-bench" group = "kernel-generation" level = "1.0" difficulty = "hard" category = "mle" tags = [ "mle", "kernel-generation", "kernels", "gpu", "real-world",] [verifier] timeout_sec = 1800.0 [agent] timeout_sec = 14400.0 # GPU request: honored by Modal/GKE/Daytona. On the local docker backend set environment.override_gpus: 0 # in the job config and attach a GPU via configs/gpu_overlay_nvidia.yaml (see RUNNING.md ยง5). # Profiling: `ncu` needs GPU performance counters โ€” the runner must add the SYS_ADMIN capability # (docker `--cap-add SYS_ADMIN`) or the host must set NVreg_RestrictProfilingToAdminUsers=0. # Without it ncu exits with ERR_NVGPUCTRPERM. `nsys` works without any extra capability. [environment] build_timeout_sec = 3600.0 cpus = 8 memory_mb = 65536 storage_mb = 40960 gpus = 1 network_mode = "public" mcp_servers = [] [verifier.env] [environment.env] [solution.env]