Files
Zordon/lib/utilities/server_helper.py
Brett Williams 76e413c18d Assign frame ranges to servers based on their CPU count (#19)
* Expose renderer availability in status api

* Remove redundant is_available_for_job API call

* New server split logic by cpu and moved to server_helper.py

* Remove old dead code

* Add RenderStatus.WAITING to proxy categories
2023-06-16 00:04:02 -05:00

124 lines
4.8 KiB
Python

import logging
import os
import socket
import subprocess
import threading
import psutil
from lib.server.server_proxy import RenderServerProxy
from lib.utilities.ffmpeg_helper import generate_thumbnail, save_first_frame
logger = logging.getLogger()
def generate_thumbnail_for_job(job, thumb_video_path, thumb_image_path, max_width=320):
# Simple thread to generate thumbs in background
def generate_thumb_thread(source):
in_progress_path = thumb_video_path + '_IN-PROGRESS'
subprocess.run(['touch', in_progress_path])
try:
logger.debug(f"Generating video thumbnail for {source}")
generate_thumbnail(source_path=source, dest_path=thumb_video_path, max_width=max_width)
except subprocess.CalledProcessError as e:
logger.error(f"Error generating video thumbnail for {source}: {e}")
try:
os.remove(in_progress_path)
except FileNotFoundError:
pass
# Determine best source file to use for thumbs
source_files = job.file_list() or [job.input_path]
if source_files:
video_formats = ['.mp4', '.mov', '.avi', '.mpg', '.mpeg', '.mxf', '.m4v', 'mkv']
image_formats = ['.jpg', '.png', '.exr']
image_files = [f for f in source_files if os.path.splitext(f)[-1].lower() in image_formats]
video_files = [f for f in source_files if os.path.splitext(f)[-1].lower() in video_formats]
if (video_files or image_files) and not os.path.exists(thumb_image_path):
try:
path_of_source = image_files[0] if image_files else video_files[0]
logger.debug(f"Generating image thumbnail for {path_of_source}")
save_first_frame(source_path=path_of_source, dest_path=thumb_image_path, max_width=max_width)
except Exception as e:
logger.error(f"Exception saving first frame: {e}")
if video_files and not os.path.exists(thumb_video_path):
x = threading.Thread(target=generate_thumb_thread, args=(video_files[0],))
x.start()
def divide_frames_evenly(start_frame, end_frame, num_servers):
frame_range = end_frame - start_frame + 1
frames_per_server = frame_range // num_servers
leftover_frames = frame_range % num_servers
ranges = []
current_start = start_frame
for i in range(num_servers):
current_end = current_start + frames_per_server - 1
if leftover_frames > 0:
current_end += 1
leftover_frames -= 1
if current_start <= current_end:
ranges.append((current_start, current_end))
current_start = current_end + 1
return ranges
def divide_frames_by_cpu_count(frame_start, frame_end, servers):
total_frames = frame_end - frame_start + 1
total_performance = sum(server['cpu_count'] for server in servers)
frame_ranges = {}
current_frame = frame_start
allocated_frames = 0
for i, server in enumerate(servers):
if i == len(servers) - 1: # if it's the last server
# Give all remaining frames to the last server
num_frames = total_frames - allocated_frames
else:
num_frames = round((server['cpu_count'] / total_performance) * total_frames)
allocated_frames += num_frames
frame_end_for_server = current_frame + num_frames - 1
if current_frame <= frame_end_for_server:
frame_ranges[server['hostname']] = (current_frame, frame_end_for_server)
current_frame = frame_end_for_server + 1
return frame_ranges
def find_available_servers(server_list, renderer, start_frame, end_frame):
local_hostname = socket.gethostname()
subjob_servers = [{'hostname': local_hostname, 'cpu_count': psutil.cpu_count(logical=False)}]
for hostname in server_list:
if hostname != local_hostname:
response = RenderServerProxy(hostname).get_status()
if response and response.get('renderers', {}).get(renderer, {}).get('is_ready', False):
subjob_servers.append({'hostname': hostname, 'cpu_count': int(response['cpu_count'])})
if len(subjob_servers) == 1:
logger.debug("No available servers to split job with. Skipping subjob creation.")
return subjob_servers
# Calculate respective frames for each server
breakdown = divide_frames_by_cpu_count(start_frame, end_frame, subjob_servers)
subjob_servers = [server for server in subjob_servers if breakdown.get(server['hostname']) is not None]
for server in subjob_servers:
server['frame_range'] = breakdown[server['hostname']]
server['total_frames'] = breakdown[server['hostname']][-1] - breakdown[server['hostname']][0] + 1
return subjob_servers
if __name__ == "__main__":
found_servers = ['kamino.local', 'deathstar.local']
print(find_available_servers(found_servers, 'blender', 1, 5))