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local-llm-server/llm_server/cluster/model_choices.py

71 lines
3.0 KiB
Python

import numpy as np
from llm_server import opts
from llm_server.cluster.backend import get_a_cluster_backend, get_backends_from_model, get_running_models
from llm_server.cluster.cluster_config import cluster_config
from llm_server.custom_redis import redis
from llm_server.routes.queue import priority_queue
from llm_server.routes.stats import calculate_wait_time, get_active_gen_workers_model
# TODO: give this a better name!
def get_model_choices(regen: bool = False):
if not regen:
c = redis.getp('model_choices')
if c:
return c
base_client_api = redis.get('base_client_api', dtype=str)
running_models = get_running_models()
model_choices = {}
for model in running_models:
b = get_backends_from_model(model)
context_size = []
avg_gen_per_worker = []
concurrent_gens = 0
for backend_url in b:
backend_info = cluster_config.get_backend(backend_url)
if backend_info.get('model_config'):
context_size.append(backend_info['model_config']['max_position_embeddings'])
if backend_info.get('average_generation_elapsed_sec'):
avg_gen_per_worker.append(backend_info['average_generation_elapsed_sec'])
concurrent_gens += backend_info['concurrent_gens']
active_gen_workers = get_active_gen_workers_model(model)
proompters_in_queue = priority_queue.len(model)
if len(avg_gen_per_worker):
average_generation_elapsed_sec = np.average(avg_gen_per_worker)
else:
average_generation_elapsed_sec = 0
estimated_wait_sec = calculate_wait_time(average_generation_elapsed_sec, proompters_in_queue, concurrent_gens, active_gen_workers)
model_choices[model] = {
'model': model,
'client_api': f'https://{base_client_api}/{model}',
'ws_client_api': f'wss://{base_client_api}/{model}/v1/stream' if opts.enable_streaming else None,
'openai_client_api': f'https://{base_client_api}/openai/{model}' if opts.enable_openi_compatible_backend else 'disabled',
'backend_count': len(b),
'estimated_wait': estimated_wait_sec,
'queued': proompters_in_queue,
'processing': active_gen_workers,
'avg_generation_time': average_generation_elapsed_sec,
'concurrent_gens': concurrent_gens
}
if len(context_size):
model_choices[model]['context_size'] = min(context_size)
# Python wants to sort lowercase vs. uppercase letters differently.
model_choices = dict(sorted(model_choices.items(), key=lambda item: item[0].upper()))
default_backend_url = get_a_cluster_backend()
default_backend_info = cluster_config.get_backend(default_backend_url)
if not default_backend_info.get('model'):
return None, None
default_model = default_backend_info['model']
redis.setp('model_choices', (model_choices, default_model))
return model_choices, default_model