Thu 22 Aug 2019 : updated mpi2padcon.c for multi-homogeneous coordinates.

Sat 10 Aug 2019 : updated mpi2padcon.c so the affine system and solutions
  are written to file.

Thu 8 Aug 2019 : adjusted mpi2padcon.c for homogeneous coordinates.

Sun 13 Jan 2019 : improved verbose level in mpi2padcon.c.

Sat 12 Jan 2019 : in parallel_phcpack.c replaced solcon_retrieve_solution
  by solcon_retrieve_next_solution, modified mpi2padcon.c for extra output.

Wed 9 Jan 2019 : added wall clock time to mpi2padcon.  In mpi2padcon,
  initialized the systems container before the broadcast of the start system.

Tue 8 Jan 2019 : added broadcast of start system and parameters to mpi2padcon.
  Extended parallel_phcpack with distribute and collect functions of
  solutions in double double and quad double precision, mpi2padcon
  defines Pade continuation with a static load balancing scheme.

Mon 7 Jan 2019 : new mpi2padcon.c broadcasts the target system.

Sun 6 Jan 2019 : updated mpi2hom.c and parallel_phcpack.c for use_c2phc4c.
  Improved mpi2hom.c to use the proper interface C functions.

Fri 14 Jul 2017 : normalization of function names in witset changed
  parallel_monodromy.c, manage_components.c, monodromyMPI.c, mpi2fac.c,
  mpi2fac_s.c, and mpi2fac_d.c.

Fri 9 Sep 2016 : updates in mpi2cell_d.c and mpi2cell_s.c because of
  renamings of functions in celcon.

Thu 8 Sep 2016 : because of renaming of functions in celcon,
  changes in parallel_cells.c, mpi2cell_d.c and mpi2cell_s.c.

Thu 23 Jun 2016 : instead of store_gamma in parallel_monodromy.c,
  must use store_standard_gamma.

Mon 4 Apr 2016 : added functions to broadcast terms of polynomials in
  double double and quad double precision.

Sun 3 Apr 2016 : added more broadcasts operations to parallel_phcpack
  for the double double and quad double versions.

Sat 2 Apr 2016 : added dimensions_broadcast to parallel_phcpack.

Mon 14 Dec 2015 : name changes in solcon changed parallel_phcpack.c,
  parallel_subsystem.c, mpi2cell_s.c, mpi2cell_d.c, and mpi2fac_s.c.

Tue 10 Nov 2015 : renaming collapse_diagonal into standard_collapse_diagonal
  changed mpi2track.c and parallel_subsystem.c.

Mon 9 Nov 2015 : mpi2track.c changed because of the renaming of
  create_diagonal_homotopy into standard_diagonal_homotopy.
  For the same reason, parallel_subsystem.c changed.

Tue 22 Sep 2015 : name changes in syscon caused changed in mpi2track.c,
  parallel_phcpack.c, parallel_cells.c, and parallel_subsystem.c.

Mon 16 Jun 2014 : fixed compilation errors (due to renaming of functions)
  in parallel_phcpack.c and mpi2track.c.

Tue 12 Feb 2013 : updated mpi2phc_d2, new mpi2phc_dd and mpi2phc_qd has
  the double double and quad double versions of mpi2phc_d2.

Mon 11 Feb 2013 : updated mpi2phc_d2.c so the solutions are written
  to file with a name specified by the user instead of written to screen.
  Started construction of mpi2phc_dd.c, the double double mpi2phc_d2.c.

Tue 5 Feb 2013 : extended mpi2sys.c to broadcast systems with double double
  and quad double precision, did the same for mpi2sol.c.

Mon 28 Jan 2013 : modified mpi2track.c for new jump_track.h,
  after refactoring phcpack once more.

Fri 18 Jan 2013 : updated mpi2track.c for a refactoring of phcpack.h,
  fixed compilation error in mpi2phc_d2.c, updated parallel_subsystem.c
  and parallel_monodromy because of new witset, refactored from phcpack.

Wed 2 Jan 2013 : include stdio.h in merge_components.c for warnings and
  memcpy belongs to string.h, which is now included in merge_components.c.
  For gcc warnings, included stdlib.h in parallel_cells.c and string.h
  in adatest.c.  Also includes in queue.c and parallel_tree.c.

Tue 11 Dec 2012 : include stdlib.h in parallel_pieri.c.

Tue 23 Jun 2009 : updated mpi2cell_d.c so it stays silent when v = 0.

Thu 5 Jun 2008 : new parallel_subsystem.c copied over from Yun's directory.

Wed 11 Jul 2007 : fixed mpi2track.c, writes target system when starting
  the diagonal homotopy.

Sun 14 Jan 2006 : mpi2track.c runs the diagonal homotopy!

Fri 12 Jan 2006 : extended parallel_phcpack.h with homotopy_broadcast
  needed for diagonal homotopy in mpi2track.c.

Fri 5 Jan 2006 : fixed bugs in mpi2track, did not stop for total degree and
  cheater's homotopy; extended with cascade homotopy.

Wed 3 Jan 2006 : fixed bug in mpi2track.c: did not stop!

Tue 2 Jan 2006 : more efficient mpi2track.c for linear-product start systems.

Fri 8 Dec 2006 : removed print_monomials from mpi2phc_d.c, because
  already in parallel_phcpack.h.

Mon 26 Jun 2006 : cleaned up mpi2cell_s.c and mpi2cell_d.c, created 
  "parallel_cells.h" and "parallel_cells.c" for common functions.
  Removed lis.h, stat_cell.c, and mpi2cell.c.  Fixed a spelling mistake
  in "parallel_phcpack.h".

Tue 2 May 2006 : modified parallel_phcpack.c, mpi2track.c works!
   Copied mpi2cell_d.c from Yan's directory.

Mon 1 May 2006 : added one routine to parallel_phcpack for mpi2track.c.

Thu 27 Apr 2006 : prepared mpi2track.c for linear-product start systems.

Tue 18 Apr 2006 : updated mpi2track.c to search for memory leak...

Sun 16 Apr 2006 : modified mpi2track.c for total degree start systems.

Wed 5 Apr 2006 : modified mpi2track.c, no longer reads in the solution
  file separately, thanks to modifications in lib_track.c

Fri 24 Mar 2006 : parallel_phcpack has extra function to write timings
  and path statistics to file, mpi2track.c looks very good now.

Tue 21 Mar 2006 : Yan has created mpi2cell_s.c and mpi2cell_d.c,
  using respectively static and dyanmic load balancing, but crashes...

Sat 11 Mar 2006 : copied stat_cell.c to mpi2cell.c, integrating the code
  of "lis.h" into it -- still needs some cleaning, but works otherwise.

Thu 8 Mar 2006 : provided exception handlers in stat_cell.c, for prs10.

Tue 21 Feb 2006 : removed all _ada_use_c2phc calls from mpi2phc_d.c,
  updated parallel_phcpack.h and parallel_phcpack.c.

Sun 5 Feb 2006 : copied stat_cell.c from /huis/yan/PHCv2/MPI,
  together with lis.h!

Tue 24 Jan 2006 : copied stat_cell.c from /huis/yan/PHCv2/MPI.

Mon 2 Jan 2006 : updates in stat_cell for parallel polyhedral continuation.

Tue 20 Sep 2005 : changes in manage_components.h/c and mpi2phc_d.c by Anton 

Sat 17 Sep 2005 : changed parallel_phcpack.c, parallel_monodromy.c, and
  mpi2fac_d.c, manage_components.h/c is splitted from monodromyMPI.c.

Thu 15 Sep 2005 : moved initialization of sampler from build trace grid
  into the main routine of mpi2fac_d.c.

Tue 13 Sep 2005 : moved routines in mpi2fac_d.c into parallel_monodromy.

Sun 11 Sep 2005 : mpi2fac_d.c works now; made some small changes to
  mpi2fac_s, parallel_phcpack and parallel_monodromy concerning labels.

Sat 10 Sep 2005 : added solutions_broadcast to parallel_phcpack.

Fri 9 Sep 2005 : mpi2phc_d.c writes all target solutions to file.

Thu 8 Sep 2005 : mpi2fac_d.c is now broadcasting all slices.

Tue 6 Sep 2005 : created parallel_phcpack.c, parallel_monodromy, with
  shared routines between mpi2fac_s.c and mpi2fac_d.c.

Mon 5 Sep 2005 : copied stat_cell.h, stat_cell.c from /huis/yan/PHCv2/MPI.
  Created mpi2fac_s.c from mpi2fac.c, for rewriting using Lib.

Thu 31 Mar 2005 : changed mpi2phc.c into mpi2phc_s.c (s for static).

Fri 25 Feb 2005 : mpi2fac seems to get in stable condition.

Sun 7 Nov 2004 : mpi2phc writes solutions to output file.

Tue 21 Sep 2004 : mpi2fac uses sampling machine

Sun 19 Sep 2004 : mpi2fac now also computes one permutation

Thu 16 Sep 2004 : mpi2fac now makes one loop

Wed 15 Sep 2004 : changed mpi2phc so root prints final solutions at the end,
  and updated mpi2fac in the same way.

Mon 13 Sep 2004 : mpi2fac can do the path tracking to new slices.

Tue 20 Apr 2004 : updated parallel pieri code

Wed 21 Jan 2004 : copied "parallel_pieri.c" to this directory.
