Files
GPU-Recource-Manager-and-pr…/GPU Resource Manager Proxy for Ollama (Designed for Proxmox).py
T

433 lines
17 KiB
Python

#!/usr/bin/env python3
import http.server
import socketserver
import requests
import json
import time
import threading
import subprocess
from datetime import datetime, time as dt_time
from urllib.parse import urlparse, parse_qs
import logging
import socket
# Configuration
OLLAMA_HOST = "" # Your Ollama LXC IP
OLLAMA_PORT = 11434 # Your Ollama LXC Port
PROXY_PORT = 11435 # Port Of This Proxy
OLLAMA_BASE_URL = f"http://{OLLAMA_HOST}:{OLLAMA_PORT}" # Fixed formatting
# GPU monitoring
GPU_CHECK_INTERVAL = 10 # seconds it waits to check for other process apart from known/compute processes
# process process patterns (from your nvidia-smi output)
IDLE_NvGPU_PROCESSES = ['t-rex', 'trex', 'miner', 'xmrig', 'lolminer', 'nbminer']
KNOWN_NvGPU_PROCESSES = ['Xorg'] # Processes that are allowed when "idle" compute process is running
IDLE_CONTAINER_ID = "" # running Idle GPU Container ID, example: COMPUTE_CONTAINER_ID ="120"
# Maintenance window (dt_time objects)
Blackout_schedule_Start = dt_time(2, 15) # 2:15 AM
Blackout_schedule_End = dt_time(3, 30) # 3:30 AM
# ----------------------------------------------------------active-code--------------------------------------------------------------#
logging.basicConfig(
level=logging.INFO,
format='%(asctime)s - %(levelname)s - %(message)s',
handlers=[
logging.FileHandler('/var/log/gpu_proxy.log'),
logging.StreamHandler()
]
)
class GPUResourceManager:
def __init__(self):
self.idle_compute_running = False
self.ollama_active = False
self.last_ollama_activity = 0
self.ollama_activity_timeout = 120 # seconds of no activity before considering Ollama done
self.last_gpu_check = 0
self.gpu_processes = []
self.lock = threading.Lock()
self.operation_in_progress = False
def run_command(self, cmd):
try:
result = subprocess.run(cmd, shell=True, capture_output=True, text=True, check=True)
return result.stdout.strip()
except subprocess.CalledProcessError as e:
logging.error(f"Command failed: {cmd}, error: {e.stderr}")
return None
def is_container_running(self, container_id):
output = self.run_command(f"pct list | grep \"^{container_id}\"")
if output and "running" in output:
return True
return False
def stop_container(self, container_id):
if self.is_container_running(container_id):
logging.info(f"Stopping container {container_id}")
result = self.run_command(f"pct stop {container_id}")
if result is not None:
max_wait = 15
waited = 0
while self.is_container_running(container_id) and waited < max_wait:
time.sleep(1)
waited += 1
if not self.is_container_running(container_id):
logging.info(f"Container {container_id} stopped successfully")
return True
else:
logging.warning(f"Container {container_id} still running after {max_wait} seconds")
return False
else:
logging.error(f"Failed to stop container {container_id}")
else:
logging.debug(f"Container {container_id} already stopped, no action needed")
return True
return False
def start_container(self, container_id):
if not self.is_container_running(container_id):
logging.info(f"Starting container {container_id}")
result = self.run_command(f"pct start {container_id}")
if result is not None:
max_wait = 15
waited = 0
while not self.is_container_running(container_id) and waited < max_wait:
time.sleep(1)
waited += 1
if self.is_container_running(container_id):
logging.info(f"Container {container_id} started successfully")
return True
else:
logging.error(f"Container {container_id} failed to start within {max_wait} seconds")
else:
logging.error(f"Failed to start container {container_id}")
else:
logging.debug(f"Container {container_id} already running, no action needed")
return True
return False
def get_gpu_processes(self):
try:
output = self.run_command(
"nvidia-smi --query-compute-apps=pid,process_name,used_memory --format=csv,noheader,nounits"
)
processes = []
if output:
for line in output.split('\n'):
if line.strip():
parts = line.split(', ')
if len(parts) >= 3:
processes.append({
'pid': parts[0],
'name': parts[1].strip(),
'memory': parts[2] + ' MiB'
})
return processes
except Exception as e:
logging.error(f"Error getting GPU processes: {e}")
return []
def is_compute_process(self, process_name):
process_lower = process_name.lower()
for pattern in IDLE_NvGPU_PROCESSES:
if pattern in process_lower:
return True
return False
def is_known_system_process(self, process_name):
return any(sys_proc in process_name for sys_proc in KNOWN_NvGPU_PROCESSES)
def is_gpu_idle(self):
processes = self.get_gpu_processes()
non_mining_processes = []
for process in processes:
if not self.is_compute_process(process['name']) and not self.is_known_system_process(process['name']):
memory_usage = int(process['memory'].split()[0])
if memory_usage > 100: #MB
non_mining_processes.append(process)
is_idle = len(non_mining_processes) == 0
if is_idle:
mining_count = len([p for p in processes if self.is_compute_process(p['name'])])
if mining_count > 0:
logging.debug("GPU is running idle NvGPU task (acceptable idle state)")
else:
logging.debug("GPU is truly idle (no significant processes)")
else:
logging.debug(f"GPU is active with non-mining processes: {[p['name'] for p in non_mining_processes]}")
return is_idle
def is_Idle_NvGPU_process_active(self):
processes = self.get_gpu_processes()
mining_processes = [p for p in processes if self.is_compute_process(p['name'])]
return len(mining_processes) > 0
def is_ollama_still_active(self):
if not self.ollama_active:
return False
time_since_last_activity = time.time() - self.last_ollama_activity
return time_since_last_activity < self.ollama_activity_timeout
def should_stop_for_schedule(self):
now = datetime.now().time()
stop_start = Blackout_schedule_Start
stop_end = Blackout_schedule_End
in_window = stop_start <= now <= stop_end
if in_window:
logging.debug("Within scheduled maintenance window (2:15am-3:30am)")
return in_window
def manage_idle_NvGPU_process(self):
with self.lock:
if self.operation_in_progress:
return
self.operation_in_progress = True
try:
current_idle_NvGPU_process_state = self.is_container_running(IDLE_CONTAINER_ID)
mining_active_on_gpu = self.is_Idle_NvGPU_process_active()
self.idle_compute_running = current_idle_NvGPU_process_state
if self.should_stop_for_schedule():
if current_idle_NvGPU_process_state:
logging.info("Stopping idle NvGPU container due to scheduled maintenance window")
self.stop_container(IDLE_CONTAINER_ID)
self.idle_compute_running = False
return
ollama_still_active = self.is_ollama_still_active()
if ollama_still_active:
if current_idle_NvGPU_process_state or mining_active_on_gpu:
logging.info("Ollama still active, keeping idle NvGPU container stopped")
if current_idle_NvGPU_process_state:
self.stop_container(IDLE_CONTAINER_ID)
self.idle_compute_running = False
return
else:
if self.ollama_active:
self.ollama_active = False
logging.info("Ollama activity timeout reached")
if self.is_gpu_idle():
if not current_idle_NvGPU_process_state and not mining_active_on_gpu:
logging.info("GPU idle, starting idle NvGPU container")
if self.start_container(IDLE_CONTAINER_ID):
self.idle_compute_running = True
elif mining_active_on_gpu and not current_idle_NvGPU_process_state:
self.idle_compute_running = True
logging.debug("Mining active on GPU, updating state")
else:
if current_idle_NvGPU_process_state:
logging.info("GPU in use by other process, stopping idle NvGPU container")
self.stop_container(IDLE_CONTAINER_ID)
self.idle_compute_running = False
finally:
self.operation_in_progress = False
def force_stop_idle_NvGPU_process_for_ollama(self):
with self.lock:
self.ollama_active = True
self.last_ollama_activity = time.time()
current_idle_NvGPU_process_state = self.is_container_running(IDLE_CONTAINER_ID)
mining_active_on_gpu = self.is_Idle_NvGPU_process_active()
if current_idle_NvGPU_process_state or mining_active_on_gpu:
logging.info("Force stopping idle NvGPU container for Ollama GPU operation")
if current_idle_NvGPU_process_state:
self.stop_container(IDLE_CONTAINER_ID)
if mining_active_on_gpu:
max_wait = 10
waited = 0
while self.is_Idle_NvGPU_process_active() and waited < max_wait:
time.sleep(1)
waited += 1
if self.is_Idle_NvGPU_process_active():
logging.warning("Mining processes still active after container stop")
else:
logging.debug("idle NvGPU container already stopped, no action needed")
self.idle_compute_running = False
def start_monitoring(self):
def monitor_loop():
while True:
try:
self.manage_idle_NvGPU_process()
except Exception as e:
logging.error(f"Error in monitor loop: {e}")
time.sleep(GPU_CHECK_INTERVAL)
monitor_thread = threading.Thread(target=monitor_loop, daemon=True)
monitor_thread.start()
logging.info("GPU monitoring thread started")
class OllamaProxyHandler(http.server.SimpleHTTPRequestHandler):
def __init__(self, *args, **kwargs):
self.gpu_manager = kwargs.pop('gpu_manager')
super().__init__(*args, **kwargs)
def do_GET(self):
if self._is_gpu_intensive_operation(self.path, {}):
self.gpu_manager.force_stop_idle_NvGPU_process_for_ollama()
time.sleep(2)
self._forward_request('GET')
def do_HEAD(self):
if self._is_gpu_intensive_operation(self.path, {}):
self.gpu_manager.force_stop_idle_NvGPU_process_for_ollama()
time.sleep(2)
self._forward_request('HEAD')
def do_POST(self):
content_length = int(self.headers.get('Content-Length', 0))
post_data = self.rfile.read(content_length) if content_length > 0 else b''
try:
request_data = {}
try:
request_data = json.loads(post_data.decode('utf-8')) if post_data else {}
except Exception:
request_data = {}
is_gpu_intensive = self._is_gpu_intensive_operation(self.path, request_data)
if is_gpu_intensive:
logging.info(f"GPU-intensive operation detected: {self.path}")
self.gpu_manager.force_stop_idle_NvGPU_process_for_ollama()
time.sleep(3.5)
self._forward_request('POST', post_data)
if is_gpu_intensive:
with self.gpu_manager.lock:
self.gpu_manager.last_ollama_activity = time.time()
logging.info("Ollama request completed, activity timestamp updated")
except Exception as e:
logging.error(f"Error processing request: {e}")
self.send_error(500, f"Internal server error: {e}")
def _is_gpu_intensive_operation(self, path, request_data):
if path in ['/api/generate', '/api/chat', '/api/embeddings']:
return True
if path == '/api/load':
return True
if path == '/api/pull':
return request_data.get('stream', True)
return False
def _forward_request(self, method, data=None):
url = f"{OLLAMA_BASE_URL}{self.path}"
headers = {key: value for key, value in self.headers.items()}
hop_headers = {
'connection', 'keep-alive', 'proxy-authenticate',
'proxy-authorization', 'te', 'trailers', 'upgrade',
'transfer-encoding'
}
for header in list(headers.keys()):
if header.lower() in hop_headers:
headers.pop(header, None)
headers.pop('Host', None)
timeout = (10, None)
try:
if method.upper() in ('GET', 'HEAD'):
resp = requests.request(method, url, headers=headers, stream=True, timeout=timeout)
else:
resp = requests.request(method, url, headers=headers, data=data, stream=True, timeout=timeout)
self.send_response(resp.status_code)
for key, value in resp.headers.items():
k_lower = key.lower()
if k_lower in hop_headers:
continue
try:
self.send_header(key, value)
except Exception:
logging.debug(f"Skipping header {key} due to send_header error")
self.end_headers()
try:
for chunk in resp.iter_content(chunk_size=4096):
if not chunk:
continue
try:
self.wfile.write(chunk)
self.wfile.flush()
except (BrokenPipeError, ConnectionResetError, socket.error) as e:
logging.info(f"Client connection closed during streaming: {e}")
break
finally:
resp.close()
except requests.exceptions.RequestException as e:
logging.error(f"Error forwarding to Ollama: {e}")
try:
if hasattr(self, '_headers_buffer') and getattr(self, 'wfile', None):
try:
err_msg = f"\n\n[proxy error] upstream request failed: {e}\n"
self.wfile.write(err_msg.encode('utf-8'))
self.wfile.flush()
except Exception:
pass
else:
self.send_error(502, f"Bad gateway: {e}")
except Exception:
pass
def log_message(self, format, *args):
logging.info(f"{self.address_string()} - {format % args}")
class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
daemon_threads = True
allow_reuse_address = True
def main():
logging.info("Starting GPU Resource Manager Proxy on Proxmox Host")
manager = GPUResourceManager()
test_output = manager.run_command("pct list > /dev/null && echo 'pct available'")
if test_output:
logging.info("pct command available")
else:
logging.error("pct command not available! Running on wrong system?")
gpu_processes = manager.get_gpu_processes()
logging.info(f"Current GPU processes: {gpu_processes}")
idle_NvGPU_process_status = manager.is_container_running(IDLE_CONTAINER_ID)
logging.info(f"idle NvGPU {IDLE_CONTAINER_ID} running: {idle_NvGPU_process_status}")
gpu_manager = GPUResourceManager()
gpu_manager.start_monitoring()
handler = lambda *args, **kwargs: OllamaProxyHandler(*args, gpu_manager=gpu_manager, **kwargs)
with ThreadedTCPServer(("", PROXY_PORT), handler) as httpd:
logging.info(f"Proxy server running on port {PROXY_PORT}")
logging.info(f"Forwarding to Ollama at {OLLAMA_HOST}:{OLLAMA_PORT}")
logging.info(f"Managing idle NvGPU process: {IDLE_CONTAINER_ID}")
logging.info("Monitoring GPU usage and scheduled maintenance windows")
logging.info(f"Mining process patterns: {IDLE_NvGPU_PROCESSES}")
try:
httpd.serve_forever()
except KeyboardInterrupt:
logging.info("Shutting down proxy server")
except Exception as e:
logging.error(f"Server error: {e}")
if __name__ == "__main__":
main()