== HMI Pipeline Module - PotentialFeildLocal ==
Provide local potential field approximation in high resolution from HMI vector field data

===== Module Inputs =====
 . Local magnetic field map at time and position of interest that will be probably determined by an active region recognition program.
===== Module Outputs =====
 . 1) Three-dimensional volume data : all 3 components of magnetic field in the volume of interest.
 . 2) Plot, visualization
 . 2-a) Field-line projected onto the solar surface or viewed from the Earth and other directions.
 . 2-b) Map at the base (photosphere) about whether field be open or closed. (?)
===== Cadence =====
 . Once or a few times per day
===== Archive =====
 . 3D data will be archive
===== Options =====
 . Sizes in both horizontal and vertical directions be determined in accordance with those of input data
===== Overall Status of Module =====
 . 1-a) Iterative solver for Laplace equation : almost done, including OpenMP parallelism
 . 1-b) Green function method  : almost done, including OpenMP parallelism, 256x256(x256) be finished in 20 min. or shorter.
 . 1-c) efficient methods such as Fourier methods : 30 % or less
 . 2) Drawer / plotter : 50 %
 . 1-a) and 1-b) are being tested in DRMS/JSOC context.
===== Status of Code =====
 . 90 % in total
===== Status of DRMS module =====
 . Tested as stand-alone : done
 . Run as DRMS or JSOC module: mostly done for iterative method and Green function method
===== Issues needing resolution =====
 * So far, "patch"-data prepared by hand is used for test.
 * Preparation of input data in a atutomated and timely manner remaining
===== Responsible scientist =====
 . K.Hayashi
===== Remarks =====
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