v7: explicit Flux model download with progress, no pipe to prevent timeout kill

job_ml.sh

@@ -268,29 +268,32 @@ if [ "$EMB_COUNT" -gt 0 ]; then
     log "  Already computed ($EMB_COUNT)"
 else
     # Download Flux model first (separate step so we see if it fails)
-    log "  Downloading Flux model..."
+    log "  Downloading Flux model (~33GB, may take 5-10 min)..."
     python3 -u << PYEOF
+import os
+os.environ["HF_HUB_ENABLE_HF_TRANSFER"] = "0"
 from huggingface_hub import snapshot_download
+
 snapshot_download(
     repo_id="black-forest-labs/FLUX.1-schnell",
     cache_dir="$DATA0/models",
 )
-print("    Flux model cached")
+print("    Flux model cached OK")
 PYEOF
+    log "  Flux model ready"
 
-    log "  Computing embeddings..."
+    log "  Computing embeddings (this takes a while, printing progress)..."
     python3 -u "$PROJECT_DIR/scripts/training/precompute_embeddings.py" \
         --data-dir "$SHARD_DIR" \
         --output-dir "$EMB_DIR" \
         --batch-size 4 \
         --cache-dir "$DATA0/models" \
-        --device cuda:0 2>&1 | tee "$DATA1/logs/precompute.log" | tail -30
+        --device cuda:0
 
     EMB_COUNT=$(find "$EMB_DIR" -name "shard-*.pt" 2>/dev/null | wc -l | tr -d '[:space:]')
     EMB_COUNT=${EMB_COUNT:-0}
     if [ "$EMB_COUNT" -eq 0 ]; then
-        log "  FATAL: No embeddings. Last 20 lines of log:"
-        tail -20 "$DATA1/logs/precompute.log" 2>/dev/null || true
+        log "  FATAL: No embeddings produced"
         exit 1
     fi
 fi