.. ******************************************************************************
.. * Copyright 2020 Intel Corporation
.. *
.. * Licensed under the Apache License, Version 2.0 (the "License");
.. * you may not use this file except in compliance with the License.
.. * You may obtain a copy of the License at
.. *
.. *     http://www.apache.org/licenses/LICENSE-2.0
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.. * distributed under the License is distributed on an "AS IS" BASIS,
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.. * See the License for the specific language governing permissions and
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mt2203
======

The engine is based on a set of 6024 Mersenne Twister pseudorandom number generators with period 22203.

MT2203 generators are intended for use in large scale Monte Carlo simulations performed on multi-processor computer systems [Matsumoto2000]_.

.. rubric:: Subsequence selection methods support

skipAhead (nskip)
    Not supported
leapfrog (threadIdx, nThreads)
    Not supported

Batch Processing
****************

Mersenne Twister engine needs the initial condition (``seed``) for state initialization.
The seed can be either an integer scalar or a vector of :math:`p` integer elements, the inputs to the respective engine constructors.

.. rubric:: Algorithm Parameters

MT2203 engine has the following parameters:

.. tabularcolumns::  |\Y{0.2}|\Y{0.2}|\Y{0.6}|

.. list-table:: Algorithm Parameters for mt2203 engine (Batch Processing)
   :header-rows: 1
   :widths: 10 20 30
   :align: left
   :class: longtable

   * - Parameter
     - Default Value
     - Description
   * - ``algorithmFPType``
     - ``float``
     - The floating-point type that the algorithm uses for intermediate computations. Can be ``float`` or ``double``.
   * - ``method``
     - ``defaultDense``
     - Performance-oriented computation method; the only method supported by the algorithm.
   * - ``seed``
     -
       - :math:`777` for a scalar seed
       - NA for a vector seed
     - Initial condition for state initialization, scalar or vector:

       - Scalar, value of ``size_t`` type
       - Vector, pointer to ``HomogenNumericTable`` of size :math:`1 \times p`