Returns the size of the buffer in bytes.

Returns a pointer to the extents data array. This is useful for passing the extents data to OpenCL APIs which expect an array of \c size_t.

Inserts \p value at the end of the vector (resizing if neccessary). Note that calling \c push_back() to insert data values one at a time is inefficie

Resizes the vector to \p size.

Returns the result of the computation. This will block until the result is ready.

where to put merged sequence

Blocks until all outstanding computations on the default command queue are complete. This is equivalent to: \code system::default_queue().finish(); \

Sets all of the bits in the bitset to zero.

Add a booster to _CVBooster.

Sets the argument at \p index to \p value with \p size. \see_opencl_ref{clSetKernelArg}

Make a prediction. Parameters ---------- data : string, numpy array, pandas DataFrame, H2O DataTable's Frame or scipy.sparse

Returns the format for the image.

parses command line arguments and sets the corresponding perf variables

Returns the function name for the kernel.

Check the return value from C API call. Parameters ---------- ret : int The return value from C API calls.

Returns the device for the context. If the context contains multiple devices, the first is returned.

Convenience method which calls enqueue_nd_range_kernel() with a one-dimensional range.

Returns the context for the command queue.

! \brief Get current leaf index */

! \brief Get current leaf index */

Build a gradient boosting model from the training set (X, y). Parameters ---------- X : array-like or sparse matrix of shape

Returns the context for the image sampler object.

! \brief Get number of leaves */

! \brief Get number of leaves */

For CPU devices on Apple platform local memory can not be used when work group size is not [1;1;1]. If work group size is greater "Invalid Work Group

Returns a cl_event pointer to the first event in the wait-list. Returns \c 0 if the wait-list is empty. This can be used to pass the wait-list to Ope

! \brief Get numer of data in current leaf */

! \brief Get numer of data in current leaf */

! \brief Get Number of used features */

! \brief Get Number of used features */

Builds the program with \p options. If the program fails to compile, this function will throw an opencl_error exception. \code try { // attempt to co

Lazy init. Returns ------- self : Dataset Constructed Dataset object.

Returns the context for the kernel.

Convert a Python string to C string.

Enqueues a command to write data from host memory to \p buffer. The copy is performed asynchronously. \see_opencl_ref{clEnqueueWriteBuffer} \see cop

Get split value histogram for the specified feature. Parameters ---------- feature : int or string The feature na