<div dir="ltr">Hi, <div><br></div><div>I tried to run the example in ksp/examples/tutorials/ex2.</div><div>I run the code with : mpiexec -n 2 ./ex2 -ksp_monitor_short -m 5 -n 5 -ksp_gmres_cgs_refinement_type refine_always</div><div><br></div><div>the output is :</div><div> 0 KSP Residual norm 3.21109 <br> 1 KSP Residual norm 0.93268 <br> 2 KSP Residual norm 0.103515 <br> 3 KSP Residual norm 0.00787798 <br> 4 KSP Residual norm 0.000387275 <br>Norm of error 0.000392701 iterations 4<br> 0 KSP Residual norm 3.21109 <br> 1 KSP Residual norm 0.93268 <br> 2 KSP Residual norm 0.103515 <br> 3 KSP Residual norm 0.00787798 <br> 4 KSP Residual norm 0.000387275 <br>Norm of error 0.000392701 iterations 4<br></div><div><br></div><div>My output(above) is twice as the ksp/examples/tutorials/output/ex2_4.out.</div><div>Is this the right answer that should come out?</div><div><br></div><div>Thanks in advance,</div><div><br></div><div>Tsung-Hsing Chen</div></div>