ex1.c: Tests the creation of a PC context
ex2.c: Tests PC and KSP on a tridiagonal matrix
ex3.c: Demonstrates the use of fast Richardson for SOR
ex4.c: Demonstrates the use of fast Richardson for SOR
ex5.c: Tests the multigrid code
ex6.c: Creates a matrix using 9 pt stensil, and uses it to test MatIncreaseOverlap (needed for aditive schwarts preconditioner
ex7.c: Tests MatILUFactorSymbolic() on matrix with missing diagonal
makefile