Uploaded sanitized BC250/ROCm Repository.
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Fabian
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"""Remove --cpu-vae: Let VAE run on GPU (only 320MB, easily fits). Restart ComfyUI and test."""
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import paramiko, time, json, textwrap
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k = paramiko.Ed25519Key.from_private_key_file(r'C:\Users\fabia\.ssh\id_ed25519')
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c = paramiko.SSHClient()
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c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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c.connect('192.168.178.150', username='fabian', pkey=k, timeout=15)
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def sh(cmd, timeout=60):
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chan = c.get_transport().open_session()
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chan.settimeout(timeout)
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chan.exec_command('/bin/bash -l -c ' + "'" + cmd.replace("'", "'\\''") + "'")
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out = b""
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while True:
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try:
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chunk = chan.recv(65536)
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if not chunk: break
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out += chunk
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except: break
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chan.close()
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return out.decode(errors='replace').strip()
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def sftp_write(path, content):
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sftp = c.open_sftp()
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with sftp.open(path, 'w') as f:
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f.write(content)
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sftp.close()
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def sftp_read(path):
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sftp = c.open_sftp()
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with sftp.open(path, 'r') as f:
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data = f.read().decode(errors='replace')
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sftp.close()
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return data
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# Kill old
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print("Killing ComfyUI...")
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sh('pkill -9 -f "python3.*main.py" 2>/dev/null; sleep 2')
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# New launcher WITHOUT --cpu-vae
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launcher = textwrap.dedent("""\
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#!/bin/bash
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export HSA_OVERRIDE_GFX_VERSION=10.1.0
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export HIP_VISIBLE_DEVICES=0
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export HSA_ENABLE_SDMA=0
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export HSA_TOOLS_LIB=""
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export HSA_TOOLS_REPORT_LOAD_FAILURE=0
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export PYTORCH_HIP_ALLOC_CONF=expandable_segments:False
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export OMP_NUM_THREADS=12
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export MKL_NUM_THREADS=12
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export OPENBLAS_NUM_THREADS=12
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export MIOPEN_FIND_MODE=1
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cd ~/ComfyUI
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source ~/comfyui-env/bin/activate
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# --novram: model weights on CPU, GPU computes (correct for shared-memory APU)
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# --force-fp16: half precision
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# NO --cpu-vae: VAE is only 320MB, runs fine on GPU and much faster
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exec python3 main.py \\
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--listen 0.0.0.0 --port 8188 \\
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--novram \\
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--force-fp16 \\
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--disable-smart-memory
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""")
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sftp_write('/tmp/run_comfyui.sh', launcher)
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sh('chmod +x /tmp/run_comfyui.sh')
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print("Launcher updated: --novram --force-fp16 (NO --cpu-vae)")
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# Start
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sh('rm -f /tmp/comfyui.log; touch /tmp/comfyui.log')
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sh('nohup /tmp/run_comfyui.sh > /tmp/comfyui.log 2>&1 &')
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time.sleep(3)
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pid = sh('pgrep -f "python3.*main.py"')
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print(f"PID: {pid}")
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# Wait for ready
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print("Waiting for server...", end='', flush=True)
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for i in range(120):
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code = sh('curl -s -o /dev/null -w "%{http_code}" http://127.0.0.1:8188/ 2>/dev/null', timeout=5)
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if '200' in code:
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print(f" READY ({i*2}s)")
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break
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if i % 10 == 0 and i > 0:
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log = sftp_read('/tmp/comfyui.log')
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lines = [l for l in log.split('\n') if l.strip()]
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print(f"\n [{i*2}s] {lines[-1][:80] if lines else '...'}", end='', flush=True)
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else:
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print('.', end='', flush=True)
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time.sleep(2)
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# Submit workflow
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print("\nSubmitting workflow...")
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workflow = {
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"prompt": {
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"1": {"class_type": "UnetLoaderGGUF", "inputs": {"unet_name": "z_image_turbo-Q5_K_S.gguf"}},
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"2": {"class_type": "CLIPLoaderGGUF", "inputs": {"clip_name": "Qwen3-4B.i1-Q5_K_S.gguf", "type": "qwen_image"}},
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"3": {"class_type": "VAELoader", "inputs": {"vae_name": "ae.safetensors"}},
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"4": {"class_type": "CLIPTextEncode", "inputs": {"text": "A red fox in a snowy forest, photorealistic", "clip": ["2", 0]}},
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"9": {"class_type": "CLIPTextEncode", "inputs": {"text": "", "clip": ["2", 0]}},
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"5": {"class_type": "EmptyLatentImage", "inputs": {"width": 512, "height": 512, "batch_size": 1}},
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"6": {"class_type": "KSampler", "inputs": {
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"model": ["1", 0], "positive": ["4", 0], "negative": ["9", 0],
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"latent_image": ["5", 0], "seed": 42, "steps": 8, "cfg": 1.0,
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"sampler_name": "euler", "scheduler": "simple", "denoise": 1.0
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}},
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"7": {"class_type": "VAEDecode", "inputs": {"samples": ["6", 0], "vae": ["3", 0]}},
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"8": {"class_type": "SaveImage", "inputs": {"images": ["7", 0], "filename_prefix": "ZImageTurbo_v2"}}
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}
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}
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sftp_write('/tmp/wf.json', json.dumps(workflow))
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resp = sh('curl -s -X POST http://127.0.0.1:8188/prompt -H "Content-Type: application/json" -d @/tmp/wf.json', timeout=10)
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print(f"Response: {resp[:150]}")
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# Monitor
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print("\nMonitoring...")
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t0 = time.time()
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for i in range(120):
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elapsed = int(time.time() - t0)
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gpu_temp = sh('cat /sys/class/drm/card0/device/hwmon/hwmon*/temp1_input 2>/dev/null', timeout=5)
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temp_c = int(gpu_temp) // 1000 if gpu_temp.isdigit() else '?'
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try:
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log = sftp_read('/tmp/comfyui.log')
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except:
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log = ''
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# Find last meaningful line
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last = ''
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sampling = ''
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for line in log.split('\n'):
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s = line.strip()
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if '/8' in s and ('it/s' in s or 's/it' in s):
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sampling = s
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if s and 'FETCH' not in s and 'startup tasks' not in s and 'DEPRECATION' not in s:
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last = s
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display = sampling if sampling else last[-100:]
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print(f" [{elapsed:>4}s] {temp_c}C | {display}")
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# Check output
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imgs = sh('ls ~/ComfyUI/output/ZImageTurbo_v2*.png 2>/dev/null', timeout=5)
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if imgs:
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print(f"\n*** IMAGE GENERATED! ***")
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print(f"File: {imgs}")
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print(f"Total time: {elapsed}s")
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# Show timing from log
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for line in log.split('\n')[-15:]:
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s = line.strip()
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if s and 'FETCH' not in s and 'startup' not in s:
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print(f" {s}")
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break
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# Queue check
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q = sh('curl -s http://127.0.0.1:8188/queue 2>/dev/null', timeout=5)
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try:
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qd = json.loads(q)
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if not qd.get('queue_running') and not qd.get('queue_pending') and elapsed > 30:
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time.sleep(3)
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imgs = sh('ls ~/ComfyUI/output/ZImageTurbo_v2*.png 2>/dev/null', timeout=5)
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if imgs:
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print(f"\n*** IMAGE GENERATED! ***")
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print(f"File: {imgs}")
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print(f"Total time: {elapsed}s")
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else:
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print(f"\nQueue empty, no image:")
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for line in log.split('\n')[-20:]:
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if line.strip():
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print(f" {line.strip()}")
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break
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except:
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pass
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alive = sh('pgrep -f "python3.*main.py" >/dev/null && echo Y || echo N', timeout=5)
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if alive == 'N':
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print("\n*** CRASHED ***")
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for line in log.split('\n')[-30:]:
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if line.strip():
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print(f" {line.strip()}")
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break
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time.sleep(15)
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c.close()
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print("\nDone.")
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