[petsc-dev] odd log behavior

Mark Adams mfadams at lbl.gov
Tue Apr 26 09:39:47 CDT 2022


I'm seeing this on Perlmutter with Kokkos-CUDA. Nans in most log timing
data except the two 'Solve' lines.
Just cg/jacobi on snes/ex56.

Any ideas?

VecTDot                2 1.0   nan nan 1.20e+01 1.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   0  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
100
VecNorm                2 1.0   nan nan 1.00e+01 1.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   0  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
100
VecCopy                2 1.0   nan nan 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   0  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
 0
VecSet                 5 1.0   nan nan 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   0  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
 0
VecAXPY                4 1.0   nan nan 2.40e+01 1.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   1  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
100
VecPointwiseMult       1 1.0   nan nan 3.00e+00 1.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   0  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
100
KSPSetUp               1 1.0   nan nan 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00
 0  0  0  0  0   0  0  0  0  0  -nan    -nan      0 0.00e+00    0 0.00e+00
 0
KSPSolve               1 1.0 4.0514e-04 1.0 5.50e+01 1.0 0.0e+00 0.0e+00
0.0e+00  1  0  0  0  0   2  0  0  0  0     0    -nan      0 0.00e+00    0
0.00e+00 100
SNESSolve              1 1.0 2.2128e-02 1.0 5.55e+05 1.0 0.0e+00 0.0e+00
0.0e+00 72 56  0  0  0 100100  0  0  0    25    -nan      0 0.00e+00    0
0.00e+00  0
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