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15 lines
472 B
15 lines
472 B
from tinygrad import Tensor, Device, GlobalCounters
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from tinygrad.helpers import Timing
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N = 512
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GPUS = 5
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ds = tuple([f"{Device.DEFAULT}:{i+1}" for i in range(GPUS)])
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t = [Tensor.ones(N, N, N, device=d).contiguous().realize() for d in ds]
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for _ in range(10):
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GlobalCounters.reset()
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with Timing():
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for ti in t:
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ti.to_(ds[(ds.index(ti.device)+1+len(ds))%len(ds)])
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# ti.to_(ds[(ds.index(ti.device)-1+len(ds))%len(ds)]) # reversed order
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ti.realize() |