aGiant removed a comment on issue #6333: Automatic context to select CPU or GPU(s) URL: https://github.com/apache/incubator-mxnet/issues/6333#issuecomment-594112031 Almost 3 years, the error remains the same: MXNetError: [19:56:15] src/imperative/./imperative_utils.h:71: Check failed: inputs[i]->ctx().dev_mask() == ctx.dev_mask() (1 vs. 2) : Operator broadcast_sub require all inputs live on the same context. But the first argument is on gpu(0) while the 2-th argument is on cpu(0) Even with gpu(): 12 with mx.gpu(): 13 half = nd.ones(y_true.shape)*0.5 ---> 14 right = nd.lesser(nd.abs(y_pred - y_true), half) 15 wrong = nd.greater(nd.abs(y_pred - y_true), half) 16 take_opt = nd.greater(nd.abs(y_pred), half)
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