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Ashwin GopinathandAnirudh B. Vangara 19ebecbc4d SpectralQuant v2: calibrated eigenbasis rotation with water-filled bit allocation
Upgrades SpectralQuant from uniform bit allocation to greedy water-filling
inside the semantic subspace, with per-dimension Lloyd-Max codebooks fit to
the empirical scalar marginal. Adds full three-way evaluation harness
(perplexity, generation, latency, LongBench) on Modal H200 GPUs, comprehensive
documentation, and the consolidated arxiv-ready manuscript.

v1 is preserved on the 'v1' branch.

Co-Authored-By: Anirudh B. Vangara <anirudh@sentra.app>
2026-05-15 12:24:05 -07:00

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#!/usr/bin/env bash
# Polls the LongBench relaunch on Modal volume, snapshots status & partials
# into the repo, and emits a stdout line on each poll plus a terminal line.
# Designed for use with the harness Monitor tool (each line is an event).
set -uo pipefail
VOL="spectralquant-v2-results"
STATUS_DIR_REMOTE="/status/longbench/longbench__Qwen2.5-7B__b3_seed42_subsetdeterministic_n50_in8192_out128_fp16+spectralquant_v2+turboquant"
SNAP_DIR="results/v3/modal/longbench_relaunch_2026-04-30/snapshots"
CALL_ID="fc-01KQFKCFNP61M33NMBN7CQ4DQB"
SLEEP_S="${WATCH_SLEEP:-1500}" # 25 min default; pass WATCH_SLEEP=60 for fast tests
DEADLINE_S="${WATCH_DEADLINE:-46800}" # 13h hard cutoff (12h + 1h buffer)
mkdir -p "$SNAP_DIR"
START=$(date +%s)
while :; do
NOW_S=$(date +%s)
ELAPSED=$((NOW_S - START))
TS=$(date -u +"%Y%m%dT%H%M%SZ")
TMP="$SNAP_DIR/$TS"
mkdir -p "$TMP/partial"
# Pull status.json and partial dir; ignore failures (files may not yet exist)
modal volume get "$VOL" "$STATUS_DIR_REMOTE/status.json" "$TMP/status.json" >/dev/null 2>&1 || true
modal volume get "$VOL" "$STATUS_DIR_REMOTE/partial" "$TMP/partial" >/dev/null 2>&1 || true
# Build a one-line summary
if [[ -f "$TMP/status.json" ]]; then
STAGE=$(python3 -c "import json,sys
try:
b=json.load(open('$TMP/status.json'))
print(b.get('stage','?'),'|',b.get('message','?'),'|ts=',b.get('timestamp','?'))
except Exception as e:
print('parse_err',e)" 2>/dev/null)
else
STAGE="no-status-yet"
fi
# Count method__*.json shards (paper-valid recovery indicator)
METHOD_RECS=$(ls "$TMP/partial/partial/method__"*.json 2>/dev/null | wc -l)
PROGRESS_RECS=$(ls "$TMP/partial/partial/"*.json 2>/dev/null | grep -v "/method__" | grep -v "partial_status.json" | wc -l)
echo "[watch] elapsed=${ELAPSED}s method_recs=${METHOD_RECS} progress_recs=${PROGRESS_RECS} | $STAGE"
# Check if function call finished (modal CLI: best-effort)
if python3 -c "import modal,sys
try:
fc=modal.FunctionCall.from_id('$CALL_ID')
r=fc.get(timeout=0)
print('CALL_DONE')
except Exception:
sys.exit(1)
" 2>/dev/null | grep -q CALL_DONE; then
echo "[watch] terminal: function call completed"
break
fi
# 3 method records => paper-valid achievable; harness should still be writing canonical JSON
if [[ "$METHOD_RECS" -ge 3 ]]; then
echo "[watch] terminal: all 3 method records present (paper-valid recoverable)"
break
fi
if (( ELAPSED > DEADLINE_S )); then
echo "[watch] terminal: deadline ${DEADLINE_S}s exceeded"
break
fi
sleep "$SLEEP_S"
done