/* -------------------------------------------
 * PARAVT - PARALLEL VORONOI TESSELLATION
 *
 * COMPUTE VT ON LARGE PARTICLE DISTRIBUTIOINS 
 * USING QHULL LIBRARY AND MPI.
 * ALSO COMPUTE SEVERAL QUANTITIES AND OUTPUTS
 * FOR ASTROPHYSICAL PURPOSES.
 * Roberto Gonzalez -- regonzar@astro.puc.cl
 * https://github.com/regonzar/paravt
--------------------------------------------*/
Version 1.1

Check Changelog.txt for version changes.

Check userguide.pdf for detailed code parameters.


1-Download

 https://github.com/regonzar/paravt

2-Compile

 Requeriments:
 Platform: Any linux compatible. Tested on RHEL 6, Centos 6.4, Centos 7.
 Should work in any MPI implementation, tested with OpenMPI-1.6.5+
 
 Set config.h parameters
 >make
 
 After change config.h you should "make clean", then "make".

3-Run

 mpirun -np <Ntask> paravt <Input_File> <Format>
 
 <Ntask> = number of tasks, should be a power of 2 (i.e. 2,4,8,16,32...)
           Code run only under MPI and with Ntask >= 2
 <Input_File> = file name of input data

 <Format> = Input file format. 
            0 = Ascii
            1 = Binary
            2 = Gadget 
            3 = Rockstar

4-Output

 Files with names <Input_File>.<EXT> where, <EXT> can be:
 den = density file
 vol = voronoi cell volumes
 nb  = neighbor number and indices
 nb2 = neighbor data
 VT.<Task> = Qhull raw output of voronoi structure, one file per each <Task>
 grid = density grid
 vtk  = VTK file of density grid for visualization porpuses
 grad = density gradient vectors

5-Questions/Bugs

please contact me at regonzar@astro.puc.cl.