Speeding up Gurobi LP solver
Ongoing
Dear Gurobi Community,
How can I speed up the running time of Gurobi LP solver? At first the time seems to be okay but since I need to solve lots of LPs of the exact same form, its too much for my application...
Is there any way to achieve this?
I attached the log and some help would be awesome!
Gurobi Optimizer version 9.1.2 build v9.1.2rc0 (mac64)
Thread count: 2 physical cores, 4 logical processors, using up to 4 threads
Optimize a model with 250000 rows, 1248000 columns and 2246000 nonzeros
Model fingerprint: 0xc6edc206
Coefficient statistics:
Matrix range [1e+00, 1e+00]
Objective range [1e+00, 1e+00]
Bounds range [0e+00, 0e+00]
RHS range [2e-06, 5e-01]
Presolve removed 0 rows and 250000 columns
Presolve time: 1.80s
Presolved: 250000 rows, 998000 columns, 1996000 nonzeros
Ordering time: 1.24s
Barrier statistics:
AA' NZ : 4.990e+05
Factor NZ : 8.492e+06 (roughly 600 MBytes of memory)
Factor Ops : 1.334e+09 (less than 1 second per iteration)
Threads : 2
Objective Residual
Iter Primal Dual Primal Dual Compl Time
0 8.11222789e+05 0.00000000e+00 3.61e-01 0.00e+00 1.03e+00 4s
1 4.25192060e+05 2.32155196e+03 3.43e-01 0.00e+00 3.86e-01 4s
2 3.17042791e+05 5.16239958e+03 2.55e-01 0.00e+00 2.87e-01 5s
3 2.46795329e+05 7.71894020e+03 1.98e-01 0.00e+00 2.22e-01 5s
4 2.13619279e+05 1.06218121e+04 1.70e-01 0.00e+00 1.91e-01 6s
5 1.77845078e+05 1.37272114e+04 1.40e-01 0.00e+00 1.58e-01 6s
6 1.58888589e+05 1.64853487e+04 1.24e-01 0.00e+00 1.39e-01 6s
7 1.42060447e+05 1.96880484e+04 1.10e-01 0.00e+00 1.23e-01 7s
8 1.28889097e+05 2.34057369e+04 9.78e-02 0.00e+00 1.09e-01 7s
9 1.18836446e+05 2.62103232e+04 8.85e-02 0.00e+00 9.89e-02 8s
10 1.11763533e+05 2.85013295e+04 8.18e-02 0.00e+00 9.13e-02 8s
11 1.06218745e+05 3.13260634e+04 7.64e-02 0.00e+00 8.51e-02 9s
12 1.00863907e+05 3.33343005e+04 7.10e-02 0.00e+00 7.90e-02 9s
13 9.72788945e+04 3.57002715e+04 6.72e-02 0.00e+00 7.48e-02 10s
14 9.46871472e+04 3.76309748e+04 6.44e-02 0.00e+00 7.17e-02 10s
15 9.22706600e+04 3.92117125e+04 6.17e-02 0.00e+00 6.87e-02 11s
16 8.95594596e+04 4.09635931e+04 5.86e-02 0.00e+00 6.52e-02 11s
17 8.73508036e+04 4.25899233e+04 5.60e-02 0.00e+00 6.22e-02 12s
18 8.54777441e+04 4.41242087e+04 5.37e-02 0.00e+00 5.96e-02 12s
19 8.42066530e+04 4.56642628e+04 5.20e-02 0.00e+00 5.78e-02 13s
20 8.28086215e+04 4.73624629e+04 5.02e-02 0.00e+00 5.57e-02 14s
21 8.13847972e+04 4.90303151e+04 4.82e-02 0.00e+00 5.35e-02 14s
22 8.02986654e+04 5.04997179e+04 4.66e-02 0.00e+00 5.18e-02 15s
23 7.96267356e+04 5.15965009e+04 4.56e-02 0.00e+00 5.07e-02 15s
24 7.84482130e+04 5.31267187e+04 4.37e-02 0.00e+00 4.86e-02 16s
25 7.77130289e+04 5.42896485e+04 4.25e-02 0.00e+00 4.72e-02 16s
26 7.68412535e+04 5.56930631e+04 4.10e-02 0.00e+00 4.55e-02 17s
27 7.65712729e+04 5.70159876e+04 4.05e-02 0.00e+00 4.50e-02 17s
28 7.62571487e+04 5.85439713e+04 3.99e-02 0.00e+00 4.43e-02 18s
29 9.98000000e+08 0.00000000e+00 3.61e-01 0.00e+00 1.00e+06 18s
30 1.98355733e+09 3.16114622e+03 3.07e-01 7.96e-13 1.72e+03 19s
31 2.86371319e+06 3.46752720e+03 1.36e-04 2.27e-13 2.35e+00 19s
32 5.43965170e+05 1.28895880e+05 4.39e-06 5.34e-13 3.39e-01 19s
33 4.12211016e+05 2.26526399e+05 1.26e-06 6.24e-13 1.52e-01 20s
34 3.65685299e+05 2.59316213e+05 5.80e-07 7.43e-13 8.69e-02 20s
35 3.46563086e+05 2.76436859e+05 3.22e-07 8.60e-13 5.73e-02 20s
36 3.38434810e+05 2.85601603e+05 2.20e-07 9.93e-13 4.31e-02 21s
37 3.34409838e+05 2.90948761e+05 1.87e-07 1.04e-12 3.55e-02 21s
38 3.32920487e+05 2.92758679e+05 1.69e-07 1.21e-12 3.28e-02 21s
39 3.28607434e+05 2.95151173e+05 1.34e-07 1.35e-12 2.73e-02 22s
40 3.25695783e+05 2.98414622e+05 1.02e-07 1.48e-12 2.23e-02 22s
41 3.23206834e+05 3.00544197e+05 8.21e-08 1.54e-12 1.85e-02 23s
42 3.20984060e+05 3.02872938e+05 6.33e-08 1.47e-12 1.48e-02 23s
43 3.20012768e+05 3.04091271e+05 5.18e-08 1.57e-12 1.30e-02 23s
44 3.18828221e+05 3.06592762e+05 3.87e-08 1.48e-12 1.00e-02 24s
45 3.17498954e+05 3.07734723e+05 2.83e-08 1.44e-12 7.99e-03 24s
46 3.16878055e+05 3.08798780e+05 2.32e-08 1.40e-12 6.61e-03 25s
47 3.16242854e+05 3.09874783e+05 1.78e-08 1.46e-12 5.21e-03 25s
48 3.15733955e+05 3.10554745e+05 1.33e-08 1.57e-12 4.24e-03 25s
49 3.15420616e+05 3.11178954e+05 1.04e-08 1.59e-12 3.47e-03 26s
50 3.15215736e+05 3.11920291e+05 8.72e-09 1.60e-12 2.70e-03 26s
51 3.15013535e+05 3.12386262e+05 9.85e-09 1.87e-12 2.15e-03 27s
52 3.14845842e+05 3.12863555e+05 1.06e-08 2.04e-12 1.63e-03 27s
53 3.14584943e+05 3.13357740e+05 5.62e-09 2.13e-12 1.00e-03 28s
54 3.14536416e+05 3.13633779e+05 1.65e-08 2.20e-12 7.40e-04 28s
55 3.14463247e+05 3.13874266e+05 1.10e-08 2.23e-12 4.83e-04 28s
56 3.14406205e+05 3.14033715e+05 8.18e-09 2.11e-12 3.04e-04 29s
57 3.14383776e+05 3.14271125e+05 2.98e-07 2.94e-12 9.35e-05 29s
58 3.14360895e+05 3.14348817e+05 1.06e-06 2.34e-12 9.75e-06 30s
59 3.14358386e+05 3.14358051e+05 8.94e-08 1.86e-12 2.82e-07 30s
60 3.14358126e+05 3.14358124e+05 9.64e-09 1.82e-12 2.03e-09 31s
Barrier solved model in 60 iterations and 30.52 seconds
Optimal objective 3.14358126e+05
Crossover log...
44914 DPushes remaining with DInf 0.0000000e+00 31s
0 DPushes remaining with DInf 0.0000000e+00 33s
248998 PPushes remaining with PInf 0.0000000e+00 33s
134942 PPushes remaining with PInf 0.0000000e+00 35s
0 PPushes remaining with PInf 0.0000000e+00 40s
Push phase complete: Pinf 0.0000000e+00, Dinf 0.0000000e+00 40s
Iteration Objective Primal Inf. Dual Inf. Time
2939153.1435812e+05 0.000000e+00 0.000000e+00 40s
Solved in 293915 iterations and 40.25 seconds
Optimal objective 3.143581249e+05
1
-
Hi Tobias,
Given the short solution time. You should definitely try running Gurobi's Parameter Tuning Tool to find good parameters and improve performance.
If your application does not require your optimal solution to be basic, e.g., if you are only interested in the objective value and don't re-optimize, you can turn off the Crossover algorithm.
Best regards,
Jaromił1 -
Hi Jaromił,
actually I already did some "research" before posting here and used the tuning tool, so this are already the tuned parameters. Is it normal that the tool only tests like 10 possible parameter assignments?
Before tuning I had a runtime above 60 seconds, but even 40 seems to be too much since I need to compute thousands of this kind of LPS (only right hand sight change completely).
So is the only way to speed up more computing power?
Best,
Tobias
1 -
Hi Tobias,
Is it normal that the tool only tests like 10 possible parameter assignments?
How long did the tuner run? You can set the TuneTimeLimit to, e.g., 86400, to let the tuner run for one day. It should definitely test more than 10 parameters then.
So is the only way to speed up more computing power?
More computing power, in particular a stronger CPU, would help. You could also search the literature for a possibly more efficient formulation of the problem.
Best regards,
Jaromił0 -
Hi Jaromil,
Tanks for the effort and help!
How long did the tuner run? You can set the TuneTimeLimit to, e.g., 86400, to let the tuner run for one day. It should definitely test more than 10 parameters then.
I seht the parameter to 2 hours but it still only tested 10 parameter sets.. what did I do wrong? I attached the output at the bottom of this comment.
More computing power, in particular a stronger CPU, would help. You could also search the literature for a possibly more efficient formulation of the problem.
Unfortunately getting more computing power is of course not that easy. I already thought about reformulating the problems but can't find any better formulation. Originally its a MinCostFlow problem which I reformulated as a LP problem. I wish I could use the Network Simplex (which should definitely be faster) but this does not seem to be part of Gurobi.
Best,
Tobias
gurobi> m.Params.TuneTimeLimit = 7200.00
Changed value of parameter TuneTimeLimit to 7200.0
Prev: -1.0 Min: -1.0 Max: inf Default: -1.0
gurobi> m.tune()
Solving model using baseline parameter set with TimeLimit=720s
Testing candidate parameter set 1...
Default parameters
Solving model ...
Optimize a model with 250000 rows, 1248000 columns and 2246000 nonzeros
Model fingerprint: 0x45c356f2
Coefficient statistics:
Matrix range [1e+00, 1e+00]
Objective range [1e+00, 1e+00]
Bounds range [0e+00, 0e+00]
RHS range [2e-06, 5e-01]
Concurrent LP optimizer: dual simplex and barrier
Showing barrier log only...
Presolve removed 0 rows and 250000 columns
Presolve time: 3.47s
Presolved: 250000 rows, 998000 columns, 1996000 nonzeros
Ordering time: 1.81s
Barrier statistics:
AA' NZ : 4.990e+05
Factor NZ : 8.492e+06 (roughly 600 MBytes of memory)
Factor Ops : 1.334e+09 (less than 1 second per iteration)
Threads : 1
Objective Residual
Iter Primal Dual Primal Dual Compl Time
0 8.11222789e+05 0.00000000e+00 3.61e-01 0.00e+00 1.03e+00 7s
1 4.25192060e+05 2.32155196e+03 3.43e-01 0.00e+00 3.86e-01 8s
2 3.17042791e+05 5.16239958e+03 2.55e-01 0.00e+00 2.87e-01 8s
3 2.46795329e+05 7.71894020e+03 1.98e-01 0.00e+00 2.22e-01 9s
4 2.13619279e+05 1.06218121e+04 1.70e-01 0.00e+00 1.91e-01 11s
5 1.77845078e+05 1.37272114e+04 1.40e-01 0.00e+00 1.58e-01 12s
6 1.58888589e+05 1.64853487e+04 1.24e-01 0.00e+00 1.39e-01 14s
7 1.42060447e+05 1.96880484e+04 1.10e-01 0.00e+00 1.23e-01 16s
8 1.28889097e+05 2.34057369e+04 9.78e-02 0.00e+00 1.09e-01 17s
9 1.18836446e+05 2.62103232e+04 8.85e-02 0.00e+00 9.89e-02 18s
10 1.11763533e+05 2.85013295e+04 8.18e-02 0.00e+00 9.13e-02 19s
11 1.06218745e+05 3.13260634e+04 7.64e-02 0.00e+00 8.51e-02 20s
12 1.00863907e+05 3.33343005e+04 7.10e-02 0.00e+00 7.90e-02 21s
13 9.72788945e+04 3.57002715e+04 6.72e-02 0.00e+00 7.48e-02 22s
14 9.46871472e+04 3.76309748e+04 6.44e-02 0.00e+00 7.17e-02 23s
15 9.22706600e+04 3.92117125e+04 6.17e-02 0.00e+00 6.87e-02 23s
16 8.95594596e+04 4.09635931e+04 5.86e-02 0.00e+00 6.52e-02 24s
17 8.73508036e+04 4.25899233e+04 5.60e-02 0.00e+00 6.22e-02 25s
18 8.54777441e+04 4.41242087e+04 5.37e-02 0.00e+00 5.96e-02 26s
19 8.42066530e+04 4.56642628e+04 5.20e-02 0.00e+00 5.78e-02 26s
20 8.28086215e+04 4.73624629e+04 5.02e-02 0.00e+00 5.57e-02 27s
21 8.13847972e+04 4.90303151e+04 4.82e-02 0.00e+00 5.35e-02 28s
22 8.02986654e+04 5.04997179e+04 4.66e-02 0.00e+00 5.18e-02 29s
23 7.96267356e+04 5.15965009e+04 4.56e-02 0.00e+00 5.07e-02 30s
24 7.84482130e+04 5.31267187e+04 4.37e-02 0.00e+00 4.86e-02 30s
25 7.77130289e+04 5.42896485e+04 4.25e-02 0.00e+00 4.72e-02 31s
26 7.68412535e+04 5.56930631e+04 4.10e-02 0.00e+00 4.55e-02 32s
27 7.65712729e+04 5.70159876e+04 4.05e-02 0.00e+00 4.50e-02 33s
28 7.62571487e+04 5.85439713e+04 3.99e-02 0.00e+00 4.43e-02 33s
29 9.98000000e+08 0.00000000e+00 3.61e-01 0.00e+00 1.00e+06 35s
30 1.98355733e+09 3.16114622e+03 3.07e-01 7.96e-13 1.72e+03 35s
31 2.86371319e+06 3.46752720e+03 1.36e-04 2.27e-13 2.35e+00 36s
32 5.43965170e+05 1.28895880e+05 4.39e-06 5.30e-13 3.39e-01 36s
33 4.12211016e+05 2.26526399e+05 1.26e-06 6.19e-13 1.52e-01 37s
34 3.65685299e+05 2.59316213e+05 5.80e-07 7.42e-13 8.69e-02 38s
35 3.46563086e+05 2.76436859e+05 3.22e-07 8.24e-13 5.73e-02 38s
36 3.38434810e+05 2.85601603e+05 2.20e-07 9.71e-13 4.31e-02 39s
37 3.34409838e+05 2.90948761e+05 1.87e-07 1.14e-12 3.55e-02 39s
38 3.32920487e+05 2.92758679e+05 1.69e-07 1.27e-12 3.28e-02 40s
39 3.28607434e+05 2.95151173e+05 1.34e-07 1.40e-12 2.73e-02 40s
40 3.25695783e+05 2.98414622e+05 1.02e-07 1.42e-12 2.23e-02 41s
41 3.23206834e+05 3.00544197e+05 8.21e-08 1.57e-12 1.85e-02 42s
42 3.20984060e+05 3.02872938e+05 6.33e-08 1.51e-12 1.48e-02 43s
43 3.20012768e+05 3.04091271e+05 5.18e-08 1.63e-12 1.30e-02 44s
44 3.18828221e+05 3.06592762e+05 3.87e-08 1.41e-12 1.00e-02 44s
45 3.17498954e+05 3.07734723e+05 2.83e-08 1.56e-12 7.99e-03 45s
46 3.16878055e+05 3.08798780e+05 2.32e-08 1.60e-12 6.61e-03 46s
47 3.16242854e+05 3.09874783e+05 1.78e-08 1.42e-12 5.21e-03 47s
48 3.15733955e+05 3.10554745e+05 1.33e-08 1.44e-12 4.24e-03 47s
49 3.15420616e+05 3.11178954e+05 1.04e-08 1.47e-12 3.47e-03 48s
50 3.15215736e+05 3.11920291e+05 9.10e-09 1.68e-12 2.70e-03 49s
51 3.15013535e+05 3.12386262e+05 1.47e-08 1.96e-12 2.15e-03 50s
52 3.14845842e+05 3.12863555e+05 1.09e-08 2.13e-12 1.63e-03 50s
53 3.14584943e+05 3.13357740e+05 6.28e-09 2.18e-12 1.00e-03 51s
54 3.14536416e+05 3.13633779e+05 2.60e-08 2.04e-12 7.40e-04 52s
55 3.14463247e+05 3.13874266e+05 1.62e-08 2.01e-12 4.83e-04 53s
56 3.14406205e+05 3.14033715e+05 6.89e-09 2.05e-12 3.04e-04 53s
57 3.14383776e+05 3.14271126e+05 3.78e-07 2.88e-12 9.35e-05 54s
58 3.14362393e+05 3.14348789e+05 1.27e-06 2.45e-12 1.10e-05 55s
59 3.14358635e+05 3.14358082e+05 3.85e-07 2.05e-12 4.60e-07 56s
60 3.14358140e+05 3.14358123e+05 9.83e-09 1.82e-12 1.42e-08 56s
61 3.14358125e+05 3.14358125e+05 1.15e-10 1.81e-12 2.79e-13 57s
Barrier solved model in 61 iterations and 56.66 seconds
Optimal objective 3.14358125e+05
Crossover log...
44926 DPushes remaining with DInf 0.0000000e+00 58s
0 DPushes remaining with DInf 0.0000000e+00 59s
248999 PPushes remaining with PInf 0.0000000e+00 60s
246440 PPushes remaining with PInf 0.0000000e+00 60s
74861 PPushes remaining with PInf 0.0000000e+00 65s
0 PPushes remaining with PInf 0.0000000e+00 69s
Push phase complete: Pinf 0.0000000e+00, Dinf 0.0000000e+00 69s
Iteration Objective Primal Inf. Dual Inf. Time
293928 3.1435812e+05 0.000000e+00 0.000000e+00 70s
Solved with barrier
Solved in 293928 iterations and 69.74 seconds
Optimal objective 3.143581249e+05
-------------------------------------------------------------------------------
Begin tuning (baseline runtime 69.85s)...
-------------------------------------------------------------------------------
Testing candidate parameter set 2...
Method 2
Solving model ... runtime 40.86s
Improvement found:
baseline: runtime 69.85s
improved: runtime 40.86s
Total elapsed tuning time 111s (7089s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 3...
Method 1
Solving model ... runtime 51.08s+
Progress so far:
baseline: runtime 69.85s
best: runtime 40.86s
Total elapsed tuning time 162s (7038s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 4...
Method 0
Solving model ... runtime 51.17s+
Progress so far:
baseline: runtime 69.85s
best: runtime 40.86s
Total elapsed tuning time 213s (6987s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 5...
Method 2
PreDepRow 0
Solving model ... runtime 40.89s
Progress so far:
baseline: runtime 69.85s
best: runtime 40.86s
Total elapsed tuning time 254s (6946s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 6...
Method 2
AggFill 10
Solving model ... runtime 41.49s
Progress so far:
baseline: runtime 69.85s
best: runtime 40.86s
Total elapsed tuning time 296s (6904s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 7...
Method 0
Presolve 1
Solving model ... runtime 51.08s+
Progress so far:
baseline: runtime 69.85s
best: runtime 40.86s
Total elapsed tuning time 347s (6853s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 8...
NormAdjust 1
Solving model ...
Tuning Interrupted
-------------------------------------------------------------------------------
Tested 7 parameter sets in 398.06s
Baseline parameter set: runtime 69.85s
Default parameters
# Name 0 Avg Std Dev
0 Model_cop 69.85s 69.85s 0.00
Improved parameter set 1 (runtime 40.86s):
Method 2
# Name 0 Avg Std Dev
0 Model_cop 40.86s 40.86s 0.000 -
Hi Tobias,
The line
Tuning Interrupted
indicates that the tuner has been manually interrupted either by the user or by the system. Is it possible that the process is getting killed by the system, e.g., due to time constraints or memory limits on the cluster/machine?
Best regards,
Jaromił0 -
Hi Jaromil,
I definetly didn't interrupt the process but also am not aware of any time constraints for my system (macOS). I just tried the tuning on a smaller instance and it also interrupts after a short amount of time (memory and or time shouldn't be the reason here I guess).
Best Tobias
Solving model using baseline parameter set with TimeLimit=720s
Testing candidate parameter set 1...
Default parameters
Solving model ...
Optimize a model with 65536 rows, 326656 columns and 587776 nonzeros
Model fingerprint: 0xc96b4514
Coefficient statistics:
Matrix range [1e+00, 1e+00]
Objective range [1e+00, 1e+00]
Bounds range [0e+00, 0e+00]
RHS range [1e+01, 4e+03]
Concurrent LP optimizer: dual simplex and barrier
Showing barrier log only...
Presolve removed 0 rows and 65536 columns
Presolve time: 0.72s
Presolved: 65536 rows, 261120 columns, 522240 nonzeros
Ordering time: 0.38s
Barrier statistics:
AA' NZ : 1.306e+05
Factor NZ : 1.986e+06 (roughly 150 MBytes of memory)
Factor Ops : 1.861e+08 (less than 1 second per iteration)
Threads : 1
Objective Residual
Iter Primal Dual Primal Dual Compl Time
0 7.49465855e+08 0.00000000e+00 9.79e+02 0.00e+00 3.65e+03 2s
1 2.05908410e+08 2.32482480e+04 5.35e+02 0.00e+00 7.02e+02 2s
2 6.05163674e+07 6.47378451e+04 1.47e+02 0.00e+00 2.05e+02 2s
Barrier performed 2 iterations in 2.38 seconds
Barrier solve interrupted - model solved by another algorithm
Solved with dual simplex
Solved in 4837 iterations and 2.40 seconds
Optimal objective 3.163225264e+05
-------------------------------------------------------------------------------
Begin tuning (baseline runtime 2.43s)...
-------------------------------------------------------------------------------
Testing candidate parameter set 2...
Method 2
Solving model ... runtime 3.06s+
Total elapsed tuning time 6s (7194s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 3...
Method 1
Solving model ... runtime 1.62s
Improvement found:
baseline: runtime 2.43s
improved: runtime 1.62s
Total elapsed tuning time 7s (7193s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 4...
Method 0
Solving model ... runtime 1.33s
Improvement found:
baseline: runtime 2.43s
improved: runtime 1.33s
Total elapsed tuning time 8s (7192s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 5...
Method 0
SimplexPricing 3
Solving model ... runtime 1.48s
Progress so far:
baseline: runtime 2.43s
best: runtime 1.33s
Total elapsed tuning time 10s (7190s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 6...
Method 0
PreDepRow 0
Solving model ... runtime 1.33s
Progress so far:
baseline: runtime 2.43s
best: runtime 1.33s
Total elapsed tuning time 11s (7189s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 7...
Method 0
AggFill 10
Solving model ... runtime 1.36s
Progress so far:
baseline: runtime 2.43s
best: runtime 1.33s
Total elapsed tuning time 13s (7187s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 8...
Method 0
Presolve 1
Solving model ... runtime 1.47s
Progress so far:
baseline: runtime 2.43s
best: runtime 1.33s
Total elapsed tuning time 14s (7186s remaining)
-------------------------------------------------------------------------------
Testing candidate parameter set 9...
NormAdjust 1
Solving model ...
Tuning Interrupted
-------------------------------------------------------------------------------
Tested 8 parameter sets in 15.90s
Baseline parameter set: runtime 2.43s
Default parameters
# Name 0 Avg Std Dev
0 Model_cop 2.43s 2.43s 0.00
Improved parameter set 1 (runtime 1.33s):
Method 0
# Name 0 Avg Std Dev
0 Model_cop 1.33s 1.33s 0.000 -
Hi Tobias,
The smaller problem still requires a quite considerable amount of memory
roughly 150 MBytes of memoryfor the Barrier algorithm. Could you double check whether memory is indeed not a problem?
Best regards,
Jaromił0 -
Hi Jaromil,
as far as I understand there shouldn't be any memory issues (see picture).
Or am I missing something?
Best,
Tobias
0
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