Process finished with exit code 137

[lahlou aziz]

Hi, 

I am getting a log that I am not able to understand. The inputs of my model are a network represented as a graph and a request which is also a graph, I am kind of adapting the assignment problem. 

The size of the graph is as follow : number of nodes of the graph is set to 1000 and the number of links is 744184. The request is composed of 4 nodes and 3 links with a linear topology i.e (V1-->V2-->V3-->V4).

I am getting this output :

Academic license - for non-commercial use only

Changed value of parameter MIPGap to 0.0

   Prev: 0.0001  Min: 0.0  Max: 1e+100  Default: 0.0001

Optimize a model with 9683402 rows, 6709656 columns and 44695040 nonzeros

Variable types: 0 continuous, 6709656 integer (6709656 binary)

Coefficient statistics:

  Matrix range     [3e-02, 5e+02]

  Objective range  [1e-02, 3e+00]

  Bounds range     [1e+00, 1e+00]

  RHS range        [2e-01, 1e+04]

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

Multi-objectives: starting optimization with 3 objectives (1 combined) ...

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

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

Multi-objectives: optimize objective 1 (weighted) ...

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

Optimize a model with 9683402 rows, 6709656 columns and 44695040 nonzeros

Variable types: 0 continuous, 6709656 integer (6709656 binary)

Coefficient statistics:

  Matrix range     [3e-02, 5e+02]

  Objective range  [1e+00, 3e+00]

  Bounds range     [1e+00, 1e+00]

  RHS range        [2e-01, 1e+04]

Found heuristic solution: objective -26.5376

Presolve removed 0 rows and 0 columns (presolve time = 425s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 472s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 476s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 786s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 795s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 799s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 804s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 813s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 823s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 825s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 843s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 845s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 856s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 867s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 871s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 875s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 880s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 885s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 890s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 895s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 900s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 905s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 910s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 915s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 920s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 925s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 930s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 935s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 940s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 945s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 950s) ...

Presolve removed 746184 rows and 2236552 columns (presolve time = 955s) ...

Process finished with exit code 137 (interrupted by signal 9: SIGKILL)

Could anyone please explain me why this is happening and what is the way to look at it in order to fix this ? 

Best, 

Aziz

[Michael Winkler]

If the process was not killed by yourself or a system administrator the most likely option is that the problem was killed the kernel because of high memory usage. You might want to check /var/log/kern.log if it gives you some information on this.

Best,
Michael

[lahlou aziz]

Hi,

Sorry for the late reply. I tried again the same model with the same size of the input and got this output : I removed all the information related to my network adresses... I am not supposed to post the networking informations by th way. Hope this output helps to figure out the issue where it comes from. But it seems that there is nothing related to gurobi processes !

May 14 07:35:02 localhost kernel: [944478.061293] audit: type=1400 audit(1526297702.164:490): apparmor="DENIED" operation="open" profile="/usr/sbin/cups-browsed" name="/usr/local/lib/libgmp.so.10.3.2" pid=30363 comm="cups-browsed" requested_mask="r" denied_mask="r" fsuid=0 ouid=0