[petsc-users] Understanding log summary
Zhang, Hong
hongzhang at anl.gov
Fri May 19 13:53:47 CDT 2017
On May 19, 2017, at 9:25 AM, Zou, Ling <ling.zou at inl.gov<mailto:ling.zou at inl.gov>> wrote:
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
Usually SNESSolve corresponds to the number of nonlinear iterations in the summary. It seems that you are solving some linear systems with GMRES. And there are 573 linear solves with 2321 GMRES iterations in total.
Hong (Mr.)
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
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--- 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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