Running Netfabb Simulation

Thermal Analysis

To run the original thermal model, from a command line run:

$ pan -b ht_bench_t

After the analysis completes, the last few lines of the output file ht_bench_t.out should be similar to the following:

Heat treatment step # 6
Heat treatment time = 21600.000
Furnace temperature = 25.000000
 inc =      58 time =    149724.69     iter =    1 eps =    0.32805E+01
 inc =      58 time =    149724.69     iter =    2 eps =    0.12222E+00
 inc =      58 time =    149724.69     iter =    3 eps =    0.23352E-02
Finished writing file results\ ht_bench_t_58.case
Writing record:         6,   time: 149724.687500000
Increment end
CPU wall for increment 58 = 00:00:00.38, since start = 00:00:23.64

Mesh preview volume  =   9347.00000000000
Activated volume     =   9347.00000000000
Activated percentage =   100.000000000000

Finished writing file .\ht_bench_t.case

Analysis completed

****************************
   1 Warning
****************************

****************************
   1 Critical warning
****************************

CPU wall for heat treatment = 00:00:02.00
CPU wall  = 00:00:23.70
CPU total = 00:00:55.09

Peak RAM used for this process = 118,608 kB

END Autodesk Netfabb Local Simulation
Actual CPU times will differ.

Quasi-static Mechanical Analysis

Run the original mechanical analysis from the command line:

$ pan -b ht_bench_m

After the analysis completes, the last few lines of the output file ht_bench_mechanical.out should be similar to the following:

Heat treatment step # 6
Heat treatment time = 21600.000
Furnace temperature = 25.000000
 inc =      60 time =    149724.69    iter =    1 eps =    0.20353E+07
 inc =      60 time =    149724.69    iter =    2 eps =    0.39157E-08
Finished writing file results\ ht_bench_m_60_f.case
Finished writing file results\ ht_bench_m_60.case
Increment end
CPU wall for increment 60 = 00:00:01.39, since start = 00:01:06.94
CPU wall for heat treatment = 00:00:10.38

----------------------------------
Substrate removal time increment
----------------------------------
 inc =      61 time =    199724.69    iter =    1 eps =    0.82766E+05
 inc =      61 time =    199724.69    iter =    2 eps =    0.66979E-09

Optimizing rigid body motion...
Initial RMS displacement          =    1.530203E-01
Optimized RMS displacement        =    1.433539E-01
Number of optimization iterations =         216
Rotation matrix =
   1.000000E+000    1.198705E-007   -7.517468E-008
  -1.198704E-007    1.000000E+000    1.899292E-006
   7.517491E-008   -1.899292E-006    1.000000E+000
Translation =    -1.369874E-003    6.043220E-004    5.347694E-002


Finished writing file results\ ht_bench_m_61_f.case
Finished writing file results\ ht_bench_m_61.case
Increment end
CPU wall for increment 61 = 00:00:00.86, since start = 00:01:07.80

------------------------------------------------------
Total number of equilibrium iterations: 138

Mesh preview volume  =   9347.00000000000
Activated volume     =   9347.00000000000
Activated percentage =   100.000000000000

Finished writing file .\ ht_bench_m_f.case
Finished writing file .\ ht_bench_m.case

Analysis completed

****************************
   1 Warning
****************************

****************************
   1 Critical warning
****************************

CPU wall for substrate removal = 00:00:01.13
CPU wall  = 00:01:08.07
CPU total = 00:02:42.67

Peak RAM used for this process = 379,880 kB

END Autodesk Netfabb Local Simulation

Actual CPU times may differ. Now the restart simulations are performed. First the thermal model is rerun:

$ pan -b ht_bench_t_restart

After the analysis completes, the last few lines of the output file ht_bench_t_restart.out should be similar to the following:

Heat treatment step # 5
Heat treatment time = 41600.000
Furnace temperature = 25.000000
 inc =     57 time =    169724.69    iter =    1 eps =    0.26334E+01
 inc =     57 time =    169724.69    iter =    2 eps =    0.42881E-01
 inc =     57 time =    169724.69    iter =    3 eps =    0.46977E-03
Finished writing file results\ ht_bench_t_restart_57.case
Writing record:        5 , time:       169724.687500000
Increment end
CPU wall for increment 57 = 00:00:00.39, since start = 00:00:09.45

Mesh preview volume  =   9347.00000000000
Activated volume     =   9347.00000000000
Activated percentage =   100.000000000000

Finished writing file .\ ht_bench_t_restart.case

Analysis completed

****************************
   1 Critical warning
****************************

CPU wall for heat treatment = 00:00:01.83
CPU wall = 00:00:09.50
CPU total = 00:00:11.80

Peak RAM used for this process = 111,936 kB

END Autodesk Netfabb Local Simulation

Actual CPU times will differ, but note the restart Wall time is about 1/3 of the original thermal simulation Wall time. Now run the new heat treatment mechanical simulation:

$ pan -b ht_bench_m_restart

After the analysis completes, the last few lines of the output file ht_bench_mechanical.out should be similar to the following:

Heat treatment step # 5
Heat treatment time = 41600.000
Furnace temperature = 25.000000
inc = 59 time = 169724.69 iter = 1 eps = 0.18048E+07
inc = 59 time = 169724.69 iter = 2 eps = 0.37577E+03
inc = 59 time = 169724.69 iter = 3 eps = 0.11876E+03
inc = 59 time = 169724.69 iter = 4 eps = 0.21538E+00
inc = 59 time = 169724.69 iter = 5 eps = 0.16486E-05
Finished writing file results\ ht_bench_m_restart_59_f.case
Finished writing file results\ ht_bench_m_restart_59.case
Increment end
CPU wall for increment 59 = 00:00:01.69, since start = 00:00:18.16
CPU wall for heat treatment = 00:00:07.33

----------------------------------
Substrate removal time increment
----------------------------------
 inc =     60 time =     219724.69    iter =   1 eps =   0.37665E+05
 inc =     60 time =     219724.69    iter =   2 eps =   0.35710E-09

Optimizing rigid body motion...
Initial RMS displacement          =     1.610442E-01
Optimized RMS displacement        =     1.518741E-01
Number of optimization iterations =         269
Rotation matrix =
   1.000000E+000    1.348451E-006    1.130048E-006
  -1.348452E-006    1.000000E+000    1.115458E-006
  -1.130047E-006   -1.115459E-006    1.000000E+000
Translation =   -2.702220E-003    8.078157E-004    5.346423E-002

Finished writing file results\ ht_bench_m_restart_60_f.case
Finished writing file results\ ht_bench_m_restart_60.case
Increment end
CPU wall for increment 60 = 00:00:00.55, since start = 00:00:18.72

------------------------------------------------------
Total number of equilibrium iterations: 36

Mesh preview volume  =    9347.00000000000
Activated volume     =    9347.00000000000
Activated percentage =    100.000000000000

Finished writing file .\ ht_bench_m_restart_f.case
Finished writing file .\ ht_bench_m_restart.case

Analysis completed

****************************
   1 Warning
****************************

****************************
   2 Critical warnings
****************************

CPU wall for substrate removal = 00:00:00.61
CPU wall  = 00:00:18.78
CPU total = 00:00:49.06

Peak RAM used for this process = 366,032 kB

END Autodesk Netfabb Local Simulation

Actual simulation times will differ, but again note the simulation time using the restarted input file is about 1/3 of the original simulation.