[petsc-users] Condition number of a matrix

Qiyue Lu luqiyue at hotmail.com
Thu Oct 3 21:18:00 CDT 2013


Dear All:

I am solving a linear system Ax=b with about 40 millions DOF in PETSc. The solver is CR/Bjacobi. The driver is modified from source code : 
petsc-3.3-p6/src/ksp/ksp/examples/tutorials/ex10.c 
I am expecting the condition number of matrix A can be included in the output file but it doesn't now. I am wondering, is there any function or option eligible to print its condition number? thanks. 

Qiyue Lu 
 		 	   		  
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