nx_swarm_pack.nx

nx_swarm_pack.nx -- SWARM FABRIC heterogeneous MAX-UTILIZATION scheduler (SF-R-PACK): get the MOST out of EVERY participant by exploiting ALL of its resources at once -- RAM, CPU cores, GPU, VRAM -- not routing a job to one class (operator 2026-07-15: "gpu was just an example ... use the ram cpu gpu whatever is available to get the most out of what participates in the supercomputer", the NIST/heterogeneous-compute model). A single participant can host MANY demands using DIFFERENT resources concurrently; work spreads to fill every participant's spare capacity. RESOURCE VECTOR (aligned to the beacon telemetry = the FEED): per participant pcpu = spare CPU milli-cores (beacon: (1000-lpc)*ncpu) · pram = free RAM MB (beacon mem_avail_mb) pgpu = GPU present 0/1 · pvram = free VRAM MB (the axis to wire from a GPU collector) DEMAND VECTOR: per chunk dcpu (milli-cores) · dram (MB) · dgpu (needs GPU 0/1) · dvram (MB) COMPOSES (check-before-build 2026-07-15): nx_resource_arbiter ALREADY models VRAM/RAM/CPU/GPU/net/disk as first-class allocatable kinds with fairness+preempt -- but is "fed by nothing". This packer IS that feed + the placement loop; the fairness/preempt/treaty LAYER wires to nx_resource_arbiter (nx_ra_request/grant) as the allocation policy SSOT. Hard-constraint classify = nx_swarm_coord. Telemetry = nx_node_beacon. ★★THE LIAR-KILLERS (the operator's principle, mechanized): (1) NO participant is ever over-allocated on ANY resource (sum assigned <= supply, per axis). (2) a demand is NEVER placed on a participant that lacks its REQUIRED resource -- a needs-GPU chunk never lands on a GPU-less node (GPU generalized to "whatever it requires"). (3) packing beats naive round-robin on placed-count (measured). (4) HETEROGENEOUS EXPLOITATION proven: one participant hosts DIFFERENT resource-type demands at once; no participant sits idle while a demand it could serve is queued. pack <poolfile> <jobsfile> -- pool line "name cpu_milli ram_mb gpu vram_mb"; job line "id cpu ram gpu vram" [gate] -- self-gate: the heterogeneous scenario + all four liar-killers license_tier: ORIGINAL expect_exit:0