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Make CuTe and PyCuTe idx2crd Behaviors The Same #1891

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Make CuTe and PyCuTe idx2crd Behaviors The Same #1891

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20 changes: 19 additions & 1 deletion python/pycute/int_tuple.py
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Original file line number Diff line number Diff line change
Expand Up @@ -144,7 +144,25 @@ def prefix_product(a, init=1):
return init


def idx2crd(idx, shape, stride=None):
def idx2crd(idx, shape):

if is_tuple(idx):
if is_tuple(shape): # tuple tuple tuple
assert len(idx) == len(shape)
return tuple(idx2crd(i, s) for i, s in zip(idx,shape))
else: # tuple "int" "int"
assert False # Error
else:
if is_tuple(shape): # "int" tuple tuple
tuple_idx = []
for i in range(len(shape)):
tuple_idx.append(idx2crd(idx // product(shape[:i]), shape[i]))
return tuple(tuple_idx)
else: # "int" "int" "int"
return idx % shape


def idx2crd(idx, shape, stride):
if stride is None:
stride = prefix_product(shape)

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