NCCL all_reduce is always attempted when 2+ GPUs are selected; a failure leaves InterconnectScore=0 (no bonus, no penalty) and OverallStatus unaffected. Exposing the checkbox implied NCCL is optional and made a failed run look like a deliberate skip. - Remove benchmark-run-nccl checkbox and its change listener from pages.go - Client sends run_nccl: selected.length > 1 (automatic) - api.go default runNCCL=true is unchanged - Selection note now mentions NCCL automatically for multi-GPU runs Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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152 KiB