1[0] main(): Mat info on PETSC_COMM_WORLD with no arguments 2[0] main(): Mat info on PETSC_COMM_WORLD with 1 argument equal to 1234: 1234 3[0] main(): Vec info on PETSC_COMM_WORLD with no arguments 4[0] main(): Vec info on PETSC_COMM_WORLD with 1 argument equal to 1234: 1234 5[0] main(): Mat info on PETSC_COMM_SELF with no arguments 6[0] main(): Mat info on PETSC_COMM_SELF with 1 argument equal to 1234: 1234 7[0] main(): Vec info on PETSC_COMM_SELF with no arguments 8[0] main(): Vec info on PETSC_COMM_SELF with 1 argument equal to 1234: 1234 9[0] main(): Mat info is enabled 10[0] main(): Vec info is enabled 11[0] main(): Mat info is enabled again through PetscInfoActivateClass 12[0] main(): Vec info is enabled again through PetscInfoActivateClass 13[0] main(): Sys info is enabled again through PetscInfoActivateClass 14[0] main(): Mat info is enabled again through PetscInfoSetClasses 15[0] main(): Vec info is enabled again through PetscInfoSetClasses 16[0] main(): Sys info is enabled again through PetscInfoSetClasses 17[0] main(): Mat info is enabled again through inverted PetscInfoSetClasses 18