# Test the heat_petsc example:
# cd  ~/PETSC/#nr
 
mpirun -np 4  ./heat_petsc
mpirun -np 4  ./heat_petsc -wrong_option -options_left
mpirun -np 4  ./heat_petsc -ksp_monitor -view_mat_x -draw_pause 3 -options_left
mpirun -np 4  ./heat_petsc -sles_view -view_sol -view_sol_x -draw_pause 3 -options_left  
 
# Which is default KSP?    /    Compare the execution time:
 
mpirun -np 4  ./heat_petsc -m 300 -n 300 -log_summary   -options_left
mpirun -np 4  ./heat_petsc -m 300 -n 300 -ksp_type cg   -log_summary -options_left
mpirun -np 4  ./heat_petsc -m 300 -n 300 -ksp_type cr   -log_summary -options_left
mpirun -np 4  ./heat_petsc -m 300 -n 300 -ksp_type bcgs -log_summary -options_left
 
# Calculate Speedup of CG:
 
mpirun -np 1  ./heat_petsc -m 300 -n 300 -ksp_type cg   -log_summary -options_left
mpirun -np 16 ./heat_petsc -m 300 -n 300 -ksp_type cg   -log_summary -options_left
 
### If you want to compile:
#
# cp  ../source/heat_petsc.c  ../source/Makefile  ./
# setenv PETSC_DIR ...  or export PETSC_DIR=...
# setenv PETSC_ARCH  ...  or export PETSC_ARCH=...
# make  BOPT=O  heat_petsc