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Default MIOPEN_FIND_MODE=FAST for amd instead of disabling cudnn #10448

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Default MIOPEN_FIND_MODE=FAST for amd instead of disabling cudnn #10448

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9 changes: 5 additions & 4 deletions comfy/model_management.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
import platform
import weakref
import gc
import os

class VRAMState(Enum):
DISABLED = 0 #No vram present: no need to move models to vram
Expand Down Expand Up @@ -335,11 +336,11 @@ def amd_min_version(device=None, min_rdna_version=0):

try:
if is_amd():
arch = torch.cuda.get_device_properties(get_torch_device()).gcnArchName
if not (any((a in arch) for a in AMD_RDNA2_AND_OLDER_ARCH)):
torch.backends.cudnn.enabled = False # Seems to improve things a lot on AMD
logging.info("Set: torch.backends.cudnn.enabled = False for better AMD performance.")
if os.getenv('MIOPEN_FIND_MODE') is None:
os.environ['MIOPEN_FIND_MODE'] = "FAST"
logging.info("Set: MIOPEN_FIND_MODE=FAST for better AMD performance, change by setting MIOPEN_FIND_MODE.")

arch = torch.cuda.get_device_properties(get_torch_device()).gcnArchName
try:
rocm_version = tuple(map(int, str(torch.version.hip).split(".")[:2]))
except:
Expand Down