[petsc-users] Execution time of the code

[Fazlul Huq]

Hello PETSc Developers,

I know that to know the execution time of code I have to run code with
-log_view and I also read chapter 13 (Profiling) of the user-manual, but I
can't figure out what is the total execution time of my code from the
information printed on the screen. I got Time (sec) there but there exist
sub-categories like Max, Max/Min, Avg and Total.
My simple question (and may be stupid question!) is, what is the total
execution time of the code here?
(Following is the part of the information printed on the screen)

jimmy at dave:~/projects/petsc/src/ksp/ksp/examples/tutorials$ mpiexec -n 4
./ex10 -f0 medium -f1 arco6 -ksp_gmres_classicalgramschmidt -log_view
-mat_type baij -matload_block_size 3 -pc_type bjacobi -options_left
Number of iterations = 19
Residual norm 1.088292e-05
Number of iterations = 59
Residual norm 3.871022e-02
************************************************************************************************************************
***             WIDEN YOUR WINDOW TO 120 CHARACTERS.  Use 'enscript -r
-fCourier9' to print this document            ***
************************************************************************************************************************

---------------------------------------------- PETSc Performance Summary:
----------------------------------------------

./ex10 on a arch-linux2-c-debug named dave with 4 processors, by jimmy Sat
Sep  1 13:41:14 2018
Using Petsc Release Version 3.9.2, unknown

                         Max       Max/Min        Avg      Total
Time (sec):           6.196e-01      1.00002   6.196e-01
Objects:              1.060e+02      1.00000   1.060e+02
Flop:                 2.361e+08      1.00684   2.353e+08  9.413e+08
Flop/sec:            3.811e+08      1.00682   3.798e+08  1.519e+09
MPI Messages:         2.360e+02      1.34857   2.061e+02  8.245e+02
MPI Message Lengths:  1.256e+07      2.24620   4.071e+04  3.357e+07
MPI Reductions:       2.160e+02      1.00000

Thanks.

Sincerely,
Huq
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