!-----------------------------------------------------------------------
&namsol   !   elliptic solver / island / free surface 
!-----------------------------------------------------------------------
   nsolv     =      1         !  type of elliptic solver  
   !                          !     =1 preconditioned conjugate gradient (pcg)
                              !     =2 successive-over-relaxation (sor)
                              !     =3 FETI (fet) (+ "key_feti")
                              !     =4 sor with extra outer halo
   nsol_arp  =      0         !  absolute/relative (0/1) precision convergence test
   nmin      =    300         !  minimum of iterations for the SOR solver
   nmax      =    800         !  maximum of iterations for the SOR solver
   nmod      =     10         !  frequency of test for the SOR solver
   eps       =  1.E-6         !  absolute precision of the solver
   resmax    = 1.E-10         !  absolute precision for the SOR solver
   sor       =   1.92         !  optimal coefficient for SOR solver
   epsisl    = 1.e-10         !  absolute precision on stream function solver
   nmisl     =   4000         !  maximum pcg iterations for island ("key_islands")
   rnu       =     1.         !  strength of the additional force ("key_dynspg_flt)
/