Architecture, ergonomics, performances
=====================================


Ergonomic
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**Simplified programming**


* Factorization of finite element catalogs


*Improvement of the performance of reading the mesh in the\*.med format

 **Simplification of post-treatments:**


* Naming of internal variables according to mechanical terminology

**Deleting:**


* Removed command DEFI_PARTITION


* Suppression of printing in CASTEM format


* Removed direct access to keywords NOEUDet MAILLE


Performances
------------

**Upgraded version for tools:**


* Release MUMPS 5.1


* Renumber version METIS: from 4.0 (September 1998) to 5.1.0 (March 2013).


* Version of PETSc (3.7.3)


* Release MED 3.2.1

 **Addition of new features related to** x **solver** s **MUMPS** and PETSc **:**


* Introduction of a new value for the keyword SOLVEUR/POSTTRAITEMENTS =' MINI '


* Introduction of the LowRank method via the new keywords SOLVEUR/LOW_RANK_TAILLE and SOLVEUR/LOW_RANK_SEUIL.


* Automatic thread activation


* Parallel analysis phase in MUMPS


* Second Level Preconditioner LMP.

Parallelism improvement:


* Authorization of the parallelism of elementary calculations for macro elements


* Introduction of a hybrid distribution mode for elementary calculations (SOUS_DOMAINE)