niketanpansare opened a new pull request #856: [SYSTEMML-540] Improve performance of GPU lstm backward operator by passing the state URL: https://github.com/apache/systemml/pull/856 - The lstm builtin function extended to return `state`: `[out, c, state] = lstm(X, W, b, out0, c0, return_sequences)` - The lstm_backward builtin function extended to accept `state`: `[dX, dW, db, dout0, dc0] = lstm_backward(X, W, b, out0, c0, given_sequences, dout, dc, state)` - Updated the DML documentation to reflect this change. - I will post the performance numbers below. @prithvirajsen @bertholdreinwald please let me know if you have any concerns.
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