X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/GMRES2stage.git/blobdiff_plain/877ef102aef5b45478a81fe60764c56a50cbf5f3..90a7d5a4672d8b4883fce5722939a29439b059d2:/code/ex29.c diff --git a/code/ex29.c b/code/ex29.c index 5e21c65..ede2355 100644 --- a/code/ex29.c +++ b/code/ex29.c @@ -1,6 +1,6 @@ -// /home/couturie/work/petsc-3.5.1/arch-linux2-c-debug/bin/mpirun -np 3 ex29 -da_grid_x 900 -da_grid_y 900 +// /home/couturie/work/petsc-3.5.1/arch-linux2-c-debug/bin/mpirun -np 3 ex29 -da_grid_x 900 -da_grid_y 900 -ksp_type fgmres @@ -240,7 +240,7 @@ int KrylovMinimizeLSQR(Mat A, Vec b, Vec x) { PetscScalar alpha, beta; PetscReal norm=20, Eprecision=1e-5, tol=1e-40; - PetscInt giter=0, ColS=12, col=0, Emaxiter=50000000, iter=0, iterations=15, Iiter=0; + PetscInt giter=0, ColS=12, col=0, Emaxiter=50000000, iter=0, iterations=20, Iiter=0; PetscErrorCode ierr; PetscScalar T1, T2; KSP ksp; @@ -428,13 +428,6 @@ int KrylovMinimizeLSQR(Mat A, Vec b, Vec x) { VecAYPX(d,1/rho,zero_short); //d=d/ rho; - if (normar/(norma*normr) <= tol) { // check for convergence in min{|b-A*x|} - break; - } - if (normr <= tolb) { // check for convergence in A*x=b - break; - } - VecAXPY(x_lsqr,phi,d); // x_lsqr=x_lsqr+phi*d normr = abs(s) * normr;