[Gurobi] error code 10001: NodefileStart set to 0.1 but the Nodefile was not generated

[Bird]

Hi,

I ran a MIP problem with 20024 Rows, 16080 Columns and 48826
NonZeros. It was terminated with error code 10001.

Part of the output is

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
142657 93968 1.1258e+07 46 1849 1.1281e+07 1.1249e+07 0.28% 45.2
13693s
142859 94164 1.1273e+07 147 1266 1.1281e+07 1.1249e+07 0.28% 45.1
13702s
143035 94319 1.1278e+07 248 1068 1.1281e+07 1.1249e+07 0.28% 45.1
13708s
143114 94385 1.1257e+07 40 2126 1.1281e+07 1.1249e+07 0.28% 45.1
13710s
143118 94389 1.1260e+07 42 2077 1.1281e+07 1.1249e+07 0.28% 45.1
13716s
143126 94397 1.1262e+07 46 1858 1.1281e+07 1.1249e+07 0.28% 45.1
13722s
143141 94413 1.1267e+07 54 1685 1.1281e+07 1.1249e+07 0.28% 45.1
13738s

Cutting planes:
Gomory: 295
Implied bound: 1397
Clique: 1
MIR: 462
Flow cover: 26746
Zero half: 80

Explored 143263 nodes (6535399 simplex iterations) in 13741.60 seconds
Thread count was 2 (of 2 available processors)

Solve interrupted (error code 10001)
Best objective 1.1280847020e+07, best bound 1.1248789213e+07, gap
0.2842%
ERROR: Out of memory
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

My options settings in the gurobi.env files are:
NodefileDir .
ResultFile solution.sol
Threads 2

I added "NodefileStart 0.1" to the gurobi.env file, but the
Nodefile was not generated when the consumed memory exceeded 0.1GB.

By the way I ran Gurobi from command line ">gurobi_cl data.lp" on a
Windows machine with Dual Core 3.0GHz and 3.00 GB memory.

Could you please give me some suggestion on how to avoid the out of
memory issue?

Thank you!

[Greg Glockner]

You should try a few things:

1) Ensure that your gurobi.env file is in the working directory

2) If the parameters are set correctly, you will see something like the following in the output:

Set parameter NodefileStart to value 0.1

3) Try setting the parameters via the command line as explained in the last section of:

http://www.gurobi.com/doc/30/quickstart/node3.html

4) Try setting NodefileStart to an even smaller value such as 0.01

[Bird]

Greg, thank you for your reply!

It saved the node files to disk after I changed parameter
NodefileStart to value 0.05.