[petsc-users] Understanding log summary

Zou, Ling ling.zou at inl.gov
Fri May 19 09:25:39 CDT 2017


Hi All,

In terms of code performance, sometimes people would ask for info about
total non-linear iteration numbers, total linear iteration numbers, etc. I
suppose all these could be found in the log summary. For the attached log
summary, can I say?
  total non-linear iteration number = 573
  total linear iteration number = 2321

Thank you.

Ling



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Event                Count      Time (sec)     Flops
      --- Global ---  --- Stage ---   Total

                   Max Ratio  Max     Ratio   Max  Ratio  Mess   Avg len
Reduct  %T %F %M %L %R  %T %F %M %L %R Mflop/s

------------------------------------------------------------------------------------------------------------------------


--- Event Stage 0: Main Stage


VecDot               607 1.0 1.8729e-04 1.0 1.95e+05 1.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0  1040

VecMDot             2321 1.0 1.1075e-03 1.0 2.87e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0  5  0  0  0   0  5  0  0  0  2590

VecNorm             5422 1.0 1.2229e-03 1.0 1.74e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0  3  0  0  0   0  3  0  0  0  1423

VecScale            5822 1.0 1.2764e-03 1.0 9.37e+05 1.0 0.0e+00 0.0e+00
0.0e+00  0  2  0  0  0   0  2  0  0  0   734

VecCopy            14334 1.0 1.8302e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

VecSet              1231 1.0 3.0700e-04 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

VecAXPY            14961 1.0 3.3679e-03 1.0 4.82e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0  9  0  0  0   0  9  0  0  0  1430

VecWAXPY           20842 1.0 5.5537e-03 1.0 4.00e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0  8  0  0  0   0  8  0  0  0   721

VecMAXPY            2894 1.0 1.4292e-03 1.0 3.62e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0  7  0  0  0   0  7  0  0  0  2536

VecSetRandom          34 1.0 1.0322e-04 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

VecReduceArith      1146 1.0 2.9907e-04 1.0 3.68e+05 1.0 0.0e+00 0.0e+00
0.0e+00  0  1  0  0  0   0  1  0  0  0  1230

VecReduceComm        573 1.0 9.2384e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

VecNormalize        2894 1.0 1.9604e-03 1.0 1.39e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0  3  0  0  0   0  3  0  0  0   712

SNESJacobianEval     573 1.0 2.2410e+00 1.0 5.60e+06 1.0 0.0e+00 0.0e+00
0.0e+00 62 11  0  0  0  62 11  0  0  0     2

MatMult MF          2928 1.0 5.7922e-01 1.0 2.83e+06 1.0 0.0e+00 0.0e+00
0.0e+00 16  5  0  0  0  16  5  0  0  0     5

MatMult             2928 1.0 5.7963e-01 1.0 2.83e+06 1.0 0.0e+00 0.0e+00
0.0e+00 16  5  0  0  0  16  5  0  0  0     5

MatSolve            2894 1.0 7.3171e-03 1.0 1.76e+07 1.0 0.0e+00 0.0e+00
0.0e+00  0 33  0  0  0   0 33  0  0  0  2405

MatLUFactorNum       573 1.0 1.4733e-02 1.0 1.71e+07 1.0 0.0e+00 0.0e+00
0.0e+00  0 32  0  0  0   0 32  0  0  0  1158

MatILUFactorSym        1 1.0 2.4543e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatAssemblyBegin    1147 1.0 7.9204e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatAssemblyEnd      1147 1.0 2.5825e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatGetRowIJ            2 1.0 6.3280e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatGetOrdering         1 1.0 1.5754e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatZeroEntries       573 1.0 5.7120e-04 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatFDColorCreate       1 1.0 2.0541e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatFDColorSetUp        1 1.0 1.6103e-04 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

MatFDColorApply      573 1.0 2.2386e+00 1.0 5.60e+06 1.0 0.0e+00 0.0e+00
0.0e+00 62 11  0  0  0  62 11  0  0  0     2

MatFDColorFunc     11460 1.0 2.2264e+00 1.0 1.85e+06 1.0 0.0e+00 0.0e+00
0.0e+00 62  3  0  0  0  62  3  0  0  0     1

MatColoringApply       1 1.0 3.9990e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

KSPGMRESOrthog      2321 1.0 2.9685e-03 1.0 5.75e+06 1.0 0.0e+00 0.0e+00
0.0e+00  0 11  0  0  0   0 11  0  0  0  1935

KSPSetUp             573 1.0 2.3291e-04 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
0.0e+00  0  0  0  0  0   0  0  0  0  0     0

KSPSolve             573 1.0 5.0164e-01 1.0 4.50e+07 1.0 0.0e+00 0.0e+00
0.0e+00 14 85  0  0  0  14 85  0  0  0    90

PCSetUp              573 1.0 1.5172e-02 1.0 1.71e+07 1.0 0.0e+00 0.0e+00
0.0e+00  0 32  0  0  0   0 32  0  0  0  1124

PCApply             2894 1.0 7.8614e-03 1.0 1.76e+07 1.0 0.0e+00 0.0e+00
0.0e+00  0 33  0  0  0   0 33  0  0  0  2239

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