[petsc-users] Bug in log_view printing

[Jared Crean]

Neat, I didn't know about the XML output.


   Jared Crean

On 7/16/2023 11:35 AM, Matthew Knepley wrote:
> On Sun, Jul 16, 2023 at 11:45 AM Jared Crean <jcrean01 at gmail.com> wrote:
>
>     Hello,
>
>        I stumbled upon a small bug in the printing of the data when
>     running
>     Petsc with -log_view.  The entire table is attached, but here is an
>     example row:
>
>
> Yes, we prescribe the exact number of spaces for each output, instead 
> of allowing it to grow,
> so if the number exceeds the size, we lose our space. We wanted to 
> keep the line length fixed.
> We do not recommend this form for processing. We usually use either 
> the XML output for flame
> graphs since it does nesting, or the CSV output for processing with 
> Pandas.
>
>   Thanks,
>
>      Matt
>
>     ------------------------------------------------------------------------------------------------------------------------
>     Event                Count      Time (sec)
>     Flop                              --- Global ---  --- Stage ---- Total
>                         Max Ratio  Max     Ratio   Max  Ratio Mess AvgLen
>     Reduct  %T %F %M %L %R  %T %F %M %L %R Mflop/s
>     ------------------------------------------------------------------------------------------------------------------------
>
>     --- Event Stage 0: Main Stage
>
>     BuildTwoSided          7 1.0 1.3282e-0271.6 0.00e+00 0.0 6.0e+01
>     4.0e+00
>     5.0e+00  0  0  0  0  0   0  0  0  0  0     0
>
>
>        Notice how the Time Max and Time Ratio values are missing a space
>     separator (the other rows have only two digits for the exponents, I
>     think there should be a space after the e-02 and before the 7).
>
>        Configuration details:
>
>          * Petsc 3.17
>
>          * Arm64 architecture (and AWS c7g.xlarge instance, which use the
>     new Graviton3 processor)
>
>          * ubuntu 22.04
>
>          * MPICH MPI (version 4.0, I think, whatever apt-get install
>     mpich
>     gives)
>
>          * clang-15 compiler
>
>
>        Jared Crean
>
>
>
> -- 
> What most experimenters take for granted before they begin their 
> experiments is infinitely more interesting than any results to which 
> their experiments lead.
> -- Norbert Wiener
>
> https://www.cse.buffalo.edu/~knepley/ 
> <http://www.cse.buffalo.edu/~knepley/>
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