[SCIP] Interpreting output

[Marc Pfetsch]

Hi Marco,

you can type "display display" in the interactive shell to get a 
description of the different columns.

Each line of output, except for the first that corresponds to the output 
of a heuristic, corresponds to one LP solve. In this case, they seem to 
come from the fact that one cut is added after each solve (see "rows" 
column).

Best

Marc

On 03/08/2021 14.55, Marco Correia wrote:
> Hi,
> 
> I'm currently solving a problem where I get this output:
> 
>   time | node  | left  |LP iter|LP it/n|mem/heur|mdpt |vars |cons |rows 
> |cuts |sepa|confs|strbr|  dualbound   | primalbound  |  gap   | compl.
> t 0.7s|     1 |     0 |     0 |     - | trivial|   0 |1580 |8299 |   0 | 
>    0 |  0 |   0 |   0 | 2.443041e+00 | 0.000000e+00 |    Inf | unknown
>   0.8s|     1 |     0 |  1326 |     - |    47M |   0 |1580 |8300 |8298 | 
>    0 |  0 |   1 |   0 | 1.708672e-02 | 0.000000e+00 |    Inf | unknown
>   0.8s|     1 |     0 |  1326 |     - |    47M |   0 |1580 |8300 |8295 | 
>    0 |  0 |   1 |   0 | 1.708672e-02 | 0.000000e+00 |    Inf | unknown
>   0.8s|     1 |     0 |  1328 |     - |    49M |   0 |1580 |8300 |8287 | 
>    0 |  1 |   1 |   0 | 1.460359e-02 | 0.000000e+00 |    Inf | unknown
>   0.9s|     1 |     0 |  1328 |     - |    50M |   0 |1580 |8297 |8287 | 
>    0 |  2 |   1 |   0 | 1.460359e-02 | 0.000000e+00 |    Inf | unknown
>   0.9s|     1 |     0 |  1328 |     - |    50M |   0 |1580 |8297 |8287 | 
>    0 |  2 |   1 |   0 | 1.460359e-02 | 0.000000e+00 |    Inf | unknown
>   0.9s|     1 |     0 |  1328 |     - |    50M |   0 |1580 |8277 |8287 | 
>    0 |  4 |   1 |   0 | 1.460359e-02 | 0.000000e+00 |    Inf | unknown
>   1.0s|     1 |     0 |  1333 |     - |    50M |   0 |1580 |8277 |8289 | 
>    2 |  5 |   1 |   0 | 1.319712e-02 | 0.000000e+00 |    Inf | unknown
>   1.0s|     1 |     0 |  1368 |     - |    51M |   0 |1580 |8277 |8293 | 
>    6 |  6 |   1 |   0 | 1.158039e-02 | 0.000000e+00 |    Inf | unknown
>   1.5s|     1 |     0 |  1864 |     - |    52M |   0 |1580 |8278 |8293 | 
>    6 etc...
> 
> Since the column node shows 0 and 1, does this mean SCIP spent 1.5 
> seconds on solving 2 LPs ?
> 
> Is there any detailed docs about what each column mean, in particular 
> the "sepa", "confs"  and "strbr" (the other ones I have no doubts).
> 
> Thanks!
> 
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