Support 0D for paddle.sort/argsort#49501
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zhwesky2010
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Jan 4, 2023
| if (out_grad.numel() == 0) return; | ||
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| if (rank == 0) { | ||
| phi::funcs::set_constant(dev_ctx, in_grad, 1.0); |
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这个是不是得用上面那个函数 int r = xpu::constant( ...
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应该不用，我看有类似文件也是这么直接调用的，比如log_softmax和softmax。
| out1.backward() | ||
| out2.backward() | ||
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| self.assertEqual(out1.shape, []) |
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前反向kernel计算逻辑没问题，可以在单测里面再加一下前反向值的检查，因为值比较固定。XPU也一样
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Support 0D for paddle.sort/argsort