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Allow multiple process per device #2916

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merged 3 commits into from
Jul 15, 2024
Merged

Allow multiple process per device #2916

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c9bb0e5
Allow more processes than devices
cifkao Jul 4, 2024
f3b2886
Accept suggestion
cifkao Jul 9, 2024
e280fe1
Merge branch 'main' into more-processes-than-devices
muellerzr Jul 15, 2024
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16 changes: 4 additions & 12 deletions src/accelerate/state.py
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Original file line number Diff line number Diff line change
Expand Up @@ -789,18 +789,10 @@ def set_device(self):
else:
if device == "gpu":
device = "cuda"
self.device = torch.device(device, self.local_process_index)
if self.device is not None:
if device == "xpu":
torch.xpu.set_device(self.device)
elif device == "mlu":
torch.mlu.set_device(self.device)
elif device == "musa":
torch.musa.set_device(self.device)
elif device == "npu":
torch.npu.set_device(self.device)
elif device == "cuda":
torch.cuda.set_device(self.device)
device_module = getattr(torch, device)
device_index = self.local_process_index % device_module.device_count()
self.device = torch.device(device, device_index)
device_module.set_device(self.device)

def __getattr__(self, name: str):
# By this point we know that no attributes of `self` contain `name`,
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