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improve the compatibility with non-CUDA environments #124

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YuHengjie
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Many thanks to the author for proposing this amazing KAN. I modified the KANLayer.py file for better compatibility in non-CUDA environments. BTW, it is my first pull request. I would appreciate it if you could accept this request. @KindXiaoming

Before:
line 126 in KANLayer.py
self.scale_base = torch.nn.Parameter(torch.FloatTensor(scale_base)).requires_grad_(sb_trainable)
After:
if torch.cuda.is_available(): self.scale_base = torch.nn.Parameter(torch.FloatTensor(scale_base).cuda()).requires_grad_(sb_trainable) else: self.scale_base = torch.nn.Parameter(torch.FloatTensor(scale_base)).requires_grad_(sb_trainable)

@@ -123,7 +123,10 @@ def __init__(self, in_dim=3, out_dim=2, num=5, k=3, noise_scale=0.1, scale_base=
if isinstance(scale_base, float):
self.scale_base = torch.nn.Parameter(torch.ones(size, device=device) * scale_base).requires_grad_(sb_trainable) # make scale trainable
else:
self.scale_base = torch.nn.Parameter(torch.FloatTensor(scale_base).to(device)).requires_grad_(sb_trainable)
if torch.cuda.is_available():
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This could potentially lead to errors for users who have CUDA device but intend to run on CPU.

@AlessandroFlati
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I do agree with @Jim137. BTW, if you already set device in the calling function there's no need to do so. If you want it to be transparent, even if I don't agree with this approach, you should modify EVERY method that regards cuda vs cpu.

@carlguo866
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Was gonna make a pull request about this and then saw this - 100% agree!

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4 participants