[petsc-dev] Scotch 6.0.1 unifies _esmumps versions

[Satish Balay]

Hm - should this go into maint?

I get the following diff with testexamples_PTSCOTCH

[I could update the output file with the changed partitioning - assuming its correct. Matt?]

I have my current changes in branch "balay/update-scotch_6.0.3/maint"

Satish

>>>>>>>>>>>
testexamples_PTSCOTCH in: /home/balay/petsc/src/mat/examples/tutorials
4,7c4,7
< [0] 0 1
< [0] 1 1
< [0] 2 1
< [0] 3 1
---
> [0] 0 2
> [0] 1 2
> [0] 2 2
> [0] 3 0
11c11
< [1] 2 0
---
> [1] 2 1
13,15c13,15
< [2] 0 2
< [2] 1 2
< [2] 2 2
---
> [2] 0 1
> [2] 1 1
> [2] 2 1
/home/balay/petsc/src/mat/examples/tutorials
Possible problem with ex15_2, diffs above
<<<<<<<<<

balay at asterix /home/balay/petsc/src/mat/examples/tutorials (balay/update-scotch_6.0.3/maint)
$ mpiexec -n 3 ./ex15 -mat_partitioning_type ptscotch  -mat_view
Mat Object: 3 MPI processes
  type: mpiaij
row 0: (0, 1)  (1, 1) 
row 1: (0, 1)  (1, 1)  (2, 1) 
row 2: (1, 1)  (2, 1)  (3, 1) 
row 3: (2, 1)  (3, 1)  (4, 1) 
row 4: (3, 1)  (4, 1)  (5, 1) 
row 5: (4, 1)  (5, 1)  (6, 1) 
row 6: (5, 1)  (6, 1)  (7, 1) 
row 7: (6, 1)  (7, 1)  (8, 1) 
row 8: (7, 1)  (8, 1)  (9, 1) 
row 9: (8, 1)  (9, 1) 
Mat Object: 3 MPI processes
  type: mpiadj
row 0: 1 
row 1: 0  2 
row 2: 1  3 
row 3: 2  4 
row 4: 3  5 
row 5: 4  6 
row 6: 5  7 
row 7: 6  8 
row 8: 7  9 
row 9: 8 
IS Object: 3 MPI processes
  type: general
[0] Number of indices in set 4
[0] 0 2
[0] 1 2
[0] 2 2
[0] 3 0
[1] Number of indices in set 3
[1] 0 0
[1] 1 0
[1] 2 1
[2] Number of indices in set 3
[2] 0 1
[2] 1 1
[2] 2 1


On Sun, 15 Feb 2015, Pierre Jolivet wrote:

> Hello,
> Is there a reason why SCOTCH 6.0.0 is still downloaded by PETSc, while 6.0.3 is out and fixes an issue with MUMPS, cf. http://lists.mcs.anl.gov/pipermail/petsc-users/2014-September/022795.html <http://lists.mcs.anl.gov/pipermail/petsc-users/2014-September/022795.html> ?
> This simple patch seems to work out of the box.
> 
> -- a/config/BuildSystem/config/packages/PTScotch.py
> +++ b/config/BuildSystem/config/packages/PTScotch.py
> @@ -3,8 +3,7 @@ import config.package
>  class Configure(config.package.Package):
>    def __init__(self, framework):
>      config.package.Package.__init__(self, framework)
> -    self.download     = ['https://gforge.inria.fr/frs/download.php/31832/scotch_6.0.0_esmumps.tar.gz',
> -                         'http://ftp.mcs.anl.gov/pub/petsc/externalpackages/scotch_6.0.0_esmumps.tar.gz']
> +    self.download     = ['http://gforge.inria.fr/frs/download.php/file/34099/scotch_6.0.3.tar.gz']
> 
> $ cd src/ksp/ksp/examples/tutorials
> $ mpirun -np 8 ./ex52 -use_mumps_lu -mat_mumps_icntl_7 5 -m 400 -n 400
> $ echo $?
> 0
> 
> (this fails with SCOTCH 6.0.0, cf. http://mumps.enseeiht.fr/index.php?page=faq#19 <http://mumps.enseeiht.fr/index.php?page=faq#19>)
> 
> Thank you,
> Pierre
> 
> > On Sep 25, 2014, at 6:38 PM, Jed Brown <jed at jedbrown.org> wrote:
> > 
> > From na-digest:
> > 
> >> From: François Pellegrini francois.pellegrini at labri.fr
> >> Date: September 20, 2014
> >> Subject: Revision 6.0.1 of Scotch is out
> >> 
> >> We announce the release, as libre/free software, of revision 6.0.1 of
> >> the SCOTCH and PT-SCOTCH software package and library for sequential
> >> and parallel graph partitioning, sequential and parallel graph
> >> clustering, sequential mesh/hypergraph partitioning and static
> >> mapping, and sequential and parallel sparse matrix block ordering.
> >> 
> >> While revision 6.0.1 is technically a bugfix release, with no apparent
> >> new features, much has changed "under the hood".
> >> - Sequential algorithms for repartitioning and (re)partitioning with
> >>  fixed vertices have been improved.
> >> - Multithreading issues have been solved.
> >> - From now on, there is no separate "*_esmumps" version for
> >>  interfacing with the MUMPS solver. The additional libraries can be
> >>  generated by running "make esmumps" for the sequential libraries and
> >>  "make ptesmumps" for the parallel libraries.
> >> 
> >> Parallel static mapping and parallel direct k-way graph repartitioning
> >> with fixed vertices will be available in release 6.1.
> >> 
> >> Scotch can be freely downloaded, under the terms of the CeCILL-C free
> >> software license. To ease the development, diffusion, and circulation
> >> of information regarding the SCOTCH project, most of its resources are
> >> hosted on the InriaGforge platform provided by INRIA. Please refer to
> >> the SCOTCH web pages at:
> >> 
> >> https://gforge.inria.fr/projects/scotch/
> >> http://www.labri.fr/~pelegrin/scotch/
> 
>