File size: 5,086 Bytes
b2c626c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | import torch
import gc
import psutil
import os
import ctypes
import comfy.model_management as mm
class FreeMemoryBase:
def free_memory(self, aggressive=False):
print("Attempting to free GPU VRAM and system RAM...")
self.free_gpu_vram(aggressive)
self.free_system_ram(aggressive)
def free_gpu_vram(self, aggressive):
if torch.cuda.is_available():
initial_memory = torch.cuda.memory_allocated()
if aggressive:
mm.unload_all_models()
mm.soft_empty_cache()
torch.cuda.empty_cache()
final_memory = torch.cuda.memory_allocated()
memory_freed = initial_memory - final_memory
print(f"GPU VRAM: Initial usage: {initial_memory/1e9:.2f} GB, "
f"Final usage: {final_memory/1e9:.2f} GB, "
f"Freed: {memory_freed/1e9:.2f} GB")
else:
print("CUDA is not available. No GPU VRAM to free.")
def free_system_ram(self, aggressive):
initial_memory = psutil.virtual_memory().percent
collected = gc.collect()
print(f"Garbage collector: collected {collected} objects.")
if aggressive:
if os.name == 'posix': # Unix/Linux
try:
os.system('sync')
with open('/proc/sys/vm/drop_caches', 'w') as f:
f.write('3')
print("Cleared system caches on Linux.")
except Exception as e:
print(f"Failed to clear system caches on Linux: {str(e)}")
elif os.name == 'nt': # Windows
try:
ctypes.windll.psapi.EmptyWorkingSet(ctypes.windll.kernel32.GetCurrentProcess())
print("Attempted to clear working set on Windows.")
except Exception as e:
print(f"Failed to clear working set on Windows: {str(e)}")
final_memory = psutil.virtual_memory().percent
memory_freed = initial_memory - final_memory
print(f"System RAM: Initial usage: {initial_memory:.2f}%, "
f"Final usage: {final_memory:.2f}%, "
f"Freed: {memory_freed:.2f}%")
class FreeMemoryImage(FreeMemoryBase):
@classmethod
def INPUT_TYPES(s):
return {"required": {
"image": ("IMAGE",),
"aggressive": ("BOOLEAN", {"default": False})
}}
RETURN_TYPES = ("IMAGE",)
FUNCTION = "free_memory_image"
CATEGORY = "Memory Management"
def free_memory_image(self, image, aggressive):
self.free_memory(aggressive)
return (image,)
class FreeMemoryLatent(FreeMemoryBase):
@classmethod
def INPUT_TYPES(s):
return {"required": {
"latent": ("LATENT",),
"aggressive": ("BOOLEAN", {"default": False})
}}
RETURN_TYPES = ("LATENT",)
FUNCTION = "free_memory_latent"
CATEGORY = "Memory Management"
def free_memory_latent(self, latent, aggressive):
self.free_memory(aggressive)
return (latent,)
class FreeMemoryModel(FreeMemoryBase):
@classmethod
def INPUT_TYPES(s):
return {"required": {
"model": ("MODEL",),
"aggressive": ("BOOLEAN", {"default": False})
}}
RETURN_TYPES = ("MODEL",)
FUNCTION = "free_memory_model"
CATEGORY = "Memory Management"
def free_memory_model(self, model, aggressive):
self.free_memory(aggressive)
return (model,)
class FreeMemoryCLIP(FreeMemoryBase):
@classmethod
def INPUT_TYPES(s):
return {"required": {
"clip": ("CLIP",),
"aggressive": ("BOOLEAN", {"default": False})
}}
RETURN_TYPES = ("CLIP",)
FUNCTION = "free_memory_clip"
CATEGORY = "Memory Management"
def free_memory_clip(self, clip, aggressive):
self.free_memory(aggressive)
return (clip,)
class FreeMemoryString(FreeMemoryBase):
@classmethod
def INPUT_TYPES(s):
return {"required": {
"string": ("STRING",),
"aggressive": ("BOOLEAN", {"default": False})
}}
RETURN_TYPES = ("STRING",)
FUNCTION = "free_memory_string"
CATEGORY = "Memory Management"
def free_memory_string(self, string, aggressive):
self.free_memory(aggressive)
return (string,)
NODE_CLASS_MAPPINGS = {
"FreeMemoryImage": FreeMemoryImage,
"FreeMemoryLatent": FreeMemoryLatent,
"FreeMemoryModel": FreeMemoryModel,
"FreeMemoryCLIP": FreeMemoryCLIP,
"FreeMemoryString": FreeMemoryString,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"FreeMemoryImage": "Free Memory (Image)",
"FreeMemoryLatent": "Free Memory (Latent)",
"FreeMemoryModel": "Free Memory (Model)",
"FreeMemoryCLIP": "Free Memory (CLIP)",
"FreeMemoryString": "Free Memory (String)",
} |