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Added env var TORCH_BACKENDS_CUDNN_ENABLED, defaults to 1.

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Christopher Anderson 2025-08-25 08:56:48 +10:00
parent 972495d95b
commit 7eda4587be
1 changed files with 6 additions and 1 deletions
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7
comfy/customzluda/zluda.py
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@ -519,7 +519,7 @@ MEM_BUS_WIDTH = {
"AMD Radeon PRO W6600": 128, "AMD Radeon PRO W6600": 128,
"AMD Radeon PRO W6400": 64, "AMD Radeon PRO W6400": 64,
"AMD Radeon PRO W5700": 256, "AMD Radeon PRO W5700": 256,
"AMD Radeon PRO W5500": 128, "AMD Radeon PRO W5500": 128,
} }
# ------------------- Device Properties Implementation ------------------- # ------------------- Device Properties Implementation -------------------
@ -678,6 +678,11 @@ def do_hijack():
torch.backends.cuda.enable_mem_efficient_sdp = do_nothing torch.backends.cuda.enable_mem_efficient_sdp = do_nothing
torch.backends.cudnn.enabled = False torch.backends.cudnn.enabled = False
torch.backends.cudnn.benchmark = False torch.backends.cudnn.benchmark = False
torch.backends.cudnn.enabled = os.environ.get("TORCH_BACKENDS_CUDNN_ENABLED", "1").strip().lower() not in {"0", "off", "false", "disable", "disabled", "no"}
if torch.backends.cudnn.enabled:
print(" :: Enabled cuDNN")
else:
print(" :: Disabled cuDNN")
if hasattr(torch.backends.cuda, "enable_flash_sdp"): if hasattr(torch.backends.cuda, "enable_flash_sdp"):
torch.backends.cuda.enable_flash_sdp(True) torch.backends.cuda.enable_flash_sdp(True)
print(" :: Disabled CUDA flash attention") print(" :: Disabled CUDA flash attention")