! * \brief Get feature names of this model * \return Feature names of this model */

! * \brief Get feature names of this model * \return Feature names of this model */

! * \brief Restore histogram from memory */

! * \brief Restore histogram from memory */

! * \brief Set label for one record * \param idx Index of this record * \param value Label value of this record */

! * \brief Set label for one record * \param idx Index of this record * \param value Label value of this record */

! * \brief Set Query Id for one record * \param idx Index of this record * \param value Query Id value of this record */

! * \brief Set Query Id for one record * \param idx Index of this record * \param value Query Id value of this record */

! * \brief Set Weight for one record * \param idx Index of this record * \param value Weight value of this record */

! * \brief Set Weight for one record * \param idx Index of this record * \param value Weight value of this record */

! * \brief Do inplace softmax transformation on p_rec * \param p_rec The input/output vector of the values. */

! * \brief Do inplace softmax transformation on p_rec * \param p_rec The input/output vector of the values. */

To-do: reduce the communication cost by using bitset to communicate.

To-do: reduce the communication cost by using bitset to communicate.

Evaluate training or validation data.

Predict for training and validation dataset.

Predict for a CSR data.

Predict for a 2-D numpy matrix.

Format metric string.

Set predictor for continued training. It is not recommended for user to call this function. Please use init_model argument in engine.

Returns the number of arguments for the kernel.

Given a total number of values (count), a number of values to process per thread (vtp), and a number of threads to execute per block (tpb), this funct

copy the string 's' with length 'n' to 'result' (just like strncpy())

Decode C bytestring to ordinary string.

Enqueues a command to copy data from \p src_buffer to \p dst_buffer. \see_opencl_ref{clEnqueueCopyBuffer} \see copy()

Enqueues a command to copy data from \p src_image to \p dst_image. \see_opencl_ref{clEnqueueCopyImage}

Enqueues a command to fill \p image with \p fill_color. \see_opencl_ref{clEnqueueFillImage} \opencl_version_warning{1,2}

Enqueues a command to map \p buffer into the host address space. Map operation is performed asynchronously. The pointer to the mapped region cannot be

Enqueues a marker in the queue and returns an event that can be used to track its progress.

Enqueues a command to read data from \p buffer to host memory. The copy will be performed asynchronously. \see_opencl_ref{clEnqueueReadBuffer} \see

Enqueues a command to copy \p size bytes of data from \p src_ptr to \p dst_ptr. The operation is performed asynchronously. \opencl_version_warning{2,

Enqueues a command to write data from host memory to \p image. \see_opencl_ref{clEnqueueWriteImage}

Evaluate for validation data. Parameters ---------- feval : callable or None, optional (default=None) Customized

! * \brief return first line of data */

! * \brief return first line of data */

Returns the program object with \p key. Returns a null optional if no program with \p key exists in the cache.

Returns the address of the \p function_name extension function. Returns \c 0 if \p function_name is invalid.

Get the feature penalty of the Dataset. Returns ------- feature_penalty : numpy array or None Feature penalty for