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E4D User Guide

  • Travel-time Run Modes
    • Mesh Generation
    • Forward Modeling
    • Inverse Modeling
  • Files
    • Input
    • Output
    • Syntax Rules
  • Using E4D
    • Running E4D
    • Visualization Utilities
    • Dictionary of Terms

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  1. E4D Website
  2. E4D User Guide

Travel-time Run Log File (fmm.log)

All E4D travel-time modes record execution information to the E4D log file, <fmm.log>. In addition to the date and time of execution, the log file records all information required to reproduce the simulation, including the names of all input files and corresponding summary statistics. The log file also produces summary information concerning the number of processors used for the simulation, and the computational load on each processor. The <fmm.log> file is overwritten with each new execution of E4D. If necessary, users should rename or move <fmm.log> prior to additional E4D computations.

  • Mesh Generation
  • Forward Modeling
  • Inverse Modeling
 ************************ WELCOME TO E4D ************************
 Copyright © 2014, Battelle Memorial Institute
 All rights reserved.
 Current date:  March 12, 2020
 Current time:  09:27:16
 Running on 0000001 processing cores
 ****************************************************************

 ************* RUNNING IN MESH GENERATION MODE (ERT) ************
  Mode:                             001
  Mesh configuration file:          two_blocks.cfg

 ************************ WELCOME TO FMM ************************
 Copyright © 2014, Battelle Memorial Institute
 All rights reserved.
 Current date:  August 30, 2020
 Current time:  04:23:24
 Running on 0000007 processing cores
 ****************************************************************

 ***************** RUNNING IN FMM FORWARD MODE ******************
  Mode:                             002
  Mesh file:                        borehole.1.node
 There was a problem reading the number of zones to include
 in the forward travel time simulation after the mesh file name.
 Using all zones.
  Survey configuration file:        borehole.srv
  Speed file:                borehole.vel
  Output options file:              borehole.out

  SURVEY FILE SUMMARY
  Number of sources:             0000016
  Number of measurements:           0000064

  SPEED FILE SUMMARY 
  Number of speed values:    0000169379

  MESH SUMMARY
  Number of nodes:                  0000027358
  Number of elements:               0000169379
  Number of zones:                  0000000004

  WRITING TRAVEL TIME FILES

  WRITING SIMULATED SURVEY FILE: borehole.vel.srv

  Forward run complete.
Convergence information and other inversion progress parameters at each outer iteration is provided.
 ************************ WELCOME TO FMM ************************
 Copyright © 2014, Battelle Memorial Institute
 All rights reserved.
 Current date:  August 30, 2020
 Current time:  04:23:41
 Running on 0000007 processing cores
 ****************************************************************

 ***************** RUNNING IN FMM INVERSE MODE *******************
  Mode:                             003
  Mesh file:                        borehole.1.node
 There was a problem reading the number of zones to include
 in the forward travel time simulation after the mesh file name.
 Using all zones.
  Survey configuration file:        borehole.srv
  Speed file:                10
  Output options file:              borehole.out
  Inverse options file:             borehole.inv
  Reference model file:             none

  SURVEY FILE SUMMARY
  Number of sources:             0000016
  Number of measurements:           0000064

  MESH SUMMARY
  Number of nodes:                  0000026436
  Number of elements:               0000163564
  Number of zones:                  0000000002

  INVERSION OPTIONS 
  Inversion options file:           borehole.inv
  Number of constraint blocks:      002

            CONSTRAINT BLOCK:          1
                 Zone Number:          1
            Structure Metric:          2
        Reweighting Function:          1
   Reweighting Mean, St.Dev.:          100.0    0.1000E-01
        Number of Zone Links:          1
              Linked to Zone:          2
             Relative Weight:          1.000    

            CONSTRAINT BLOCK:          2
                 Zone Number:          2
            Structure Metric:          2
        Reweighting Function:          1
   Reweighting Mean, St.Dev.:          100.0    0.1000E-01
        Number of Zone Links:          1
              Linked to Zone:          1
             Relative Weight:          1.000    
 Reference model not used in inversion options file.
 The validity of this entry in e4d.inp was not checked.

         Starting beta value:          600.0    
 Minimum objective reduction:          0.5000E-01
    Beta reduction parameter:          0.5000    
    Target chi-squared value:          1.000    
  Minimum # inner iterations:         30
  Maximum # inner iterations:        200
        Maximum conductivity:           5.000    
        Minimum conductivity:          0.1000    
               Update option:          No line search
  Data culling st. deviation:          3.000    

 ********** CONVERGENCE STATISTICS AT STARTING MODEL *******************
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     18464.         0.0000         0.0000         18464.    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           0.0000                   0.0000    
     2            257118           0.0000                   0.0000    

 Chi2 is currently  288.5       Target value is 1.0000    
 Mean error is  15.43    
 RMS error is  16.99    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  288.5    
    Mean error is  15.43    
    RMS error is  16.99    
 ***********************************************************************

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 001 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     7094.2         4496.1         7.4935         11590.    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           54.661                  0.23376E-02
     2            257118           45.339                  0.29799E-02

 Chi2 is currently  110.8       Target value is 1.0000    
 Mean error is  9.091    
 RMS error is  10.53    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  110.8    
    Mean error is  9.091    
    RMS error is  10.53    
 ***********************************************************************
Decrease in objective function is: 0.3723    
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 002 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     6353.2         423.09        0.70515         6776.3    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           71.008                  0.86879E-03
     2            257118           28.992                  0.54513E-03

 Chi2 is currently  99.27       Target value is 1.0000    
 Mean error is  8.539    
 RMS error is  9.963    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  99.27    
    Mean error is  8.539    
    RMS error is  9.963    
 ***********************************************************************
Decrease in objective function is: 0.4154    
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 003 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     417.43         955.75         1.5929         1373.2    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           64.458                  0.12270E-02
     2            257118           35.542                  0.10398E-02

 Chi2 is currently  6.522       Target value is 1.0000    
 Mean error is 0.5089    
 RMS error is  2.554    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  6.522    
    Mean error is 0.5089    
    RMS error is  2.554    
 ***********************************************************************
Decrease in objective function is: 0.7974    
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 004 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     316.98         51.086        0.85144E-01     368.06    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           56.387                  0.24372E-03
     2            257118           43.613                  0.28969E-03

 Chi2 is currently  4.953       Target value is 1.0000    
 Mean error is 0.2700    
 RMS error is  2.225    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  4.953    
    Mean error is 0.2700    
    RMS error is  2.225    
 ***********************************************************************
Decrease in objective function is: 0.7320    
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 005 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     299.80         44.273        0.73788E-01     344.07    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           58.496                  0.22335E-03
     2            257118           41.504                  0.24354E-03

 Chi2 is currently  4.684       Target value is 1.0000    
 Mean error is 0.1479    
 RMS error is  2.164    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  4.684    
    Mean error is 0.1479    
    RMS error is  2.164    
 ***********************************************************************
Decrease in objective function is: 0.6518E-01
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 006 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     280.93         29.607        0.49345E-01     310.54    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           63.446                  0.21235E-03
     2            257118           36.554                  0.18802E-03

 Chi2 is currently  4.390       Target value is 1.0000    
 Mean error is -.1029    
 RMS error is  2.095    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  4.390    
    Mean error is -.1029    
    RMS error is  2.095    
 ***********************************************************************
Decrease in objective function is: 0.9746E-01
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 007 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     263.00         26.223        0.43705E-01     289.23    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           64.986                  0.18915E-03
     2            257118           35.014                  0.15662E-03

 Chi2 is currently  4.109       Target value is 1.0000    
 Mean error is -.1997    
 RMS error is  2.027    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  4.109    
    Mean error is -.1997    
    RMS error is  2.027    
 ***********************************************************************
Decrease in objective function is: 0.6863E-01
Decrease in objective function is sufficient to continue at beta =  600.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 008 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     259.26         23.163        0.38604E-01     282.42    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           65.206                  0.17606E-03
     2            257118           34.794                  0.14438E-03

 Chi2 is currently  4.051       Target value is 1.0000    
 Mean error is -.2312    
 RMS error is  2.013    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  4.051    
    Mean error is -.2312    
    RMS error is  2.013    
 ***********************************************************************
Decrease in objective function is: 0.2353E-01
Solution did not converge at beta =  600.0    
Decreasing beta by 0.5000     from  600.0     to  300.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 009 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     195.23         49.825        0.16608         245.06    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           61.043                  0.35480E-03
     2            257118           38.957                  0.34797E-03

 Chi2 is currently  3.050       Target value is 1.0000    
 Mean error is -.5811    
 RMS error is  1.747    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  3.050    
    Mean error is -.5811    
    RMS error is  1.747    
 ***********************************************************************
Decrease in objective function is: 0.1323    
Decrease in objective function is sufficient to continue at beta =  300.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 010 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     200.41         34.830        0.11610         235.25    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           62.035                  0.28782E-03
     2            257118           37.965                  0.27071E-03

 Chi2 is currently  3.131       Target value is 1.0000    
 Mean error is -.6158    
 RMS error is  1.770    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  3.131    
    Mean error is -.6158    
    RMS error is  1.770    
 ***********************************************************************
Decrease in objective function is: 0.4003E-01
Solution did not converge at beta =  300.0    
Decreasing beta by 0.5000     from  300.0     to  150.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 011 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     146.39         52.928        0.35285         199.32    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           61.253                  0.49687E-03
     2            257118           38.747                  0.48303E-03

 Chi2 is currently  2.287       Target value is 1.0000    
 Mean error is -.8991    
 RMS error is  1.512    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  2.287    
    Mean error is -.8991    
    RMS error is  1.512    
 ***********************************************************************
Decrease in objective function is: 0.1527    
Decrease in objective function is sufficient to continue at beta =  150.0    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 012 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     151.94         45.446        0.30297         197.38    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           64.321                  0.48248E-03
     2            257118           35.679                  0.41129E-03

 Chi2 is currently  2.374       Target value is 1.0000    
 Mean error is -1.006    
 RMS error is  1.541    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  2.374    
    Mean error is -1.006    
    RMS error is  1.541    
 ***********************************************************************
Decrease in objective function is: 0.9706E-02
Solution did not converge at beta =  150.0    
Decreasing beta by 0.5000     from  150.0     to  75.00    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 013 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     110.83         55.095        0.73459         165.92    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           67.721                  0.78641E-03
     2            257118           32.279                  0.57606E-03

 Chi2 is currently  1.732       Target value is 1.0000    
 Mean error is -.9868    
 RMS error is  1.316    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  1.732    
    Mean error is -.9868    
    RMS error is  1.316    
 ***********************************************************************
Decrease in objective function is: 0.1594    
Decrease in objective function is sufficient to continue at beta =  75.00    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 014 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     108.31         55.205        0.73606         163.52    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           66.579                  0.75985E-03
     2            257118           33.421                  0.58618E-03

 Chi2 is currently  1.692       Target value is 1.0000    
 Mean error is -1.007    
 RMS error is  1.301    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  1.692    
    Mean error is -1.007    
    RMS error is  1.301    
 ***********************************************************************
Decrease in objective function is: 0.1448E-01
Solution did not converge at beta =  75.00    
Decreasing beta by 0.5000     from  75.00     to  37.50    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 015 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     69.967         56.973         1.5193         126.94    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           69.605                  0.11333E-02
     2            257118           30.395                  0.76052E-03

 Chi2 is currently  1.093       Target value is 1.0000    
 Mean error is -.9871    
 RMS error is  1.046    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is  1.093    
    Mean error is -.9871    
    RMS error is  1.046    
 ***********************************************************************
Decrease in objective function is: 0.2237    
Decrease in objective function is sufficient to continue at beta =  37.50    

 ********** CONVERGENCE STATISTICS AFTER INVERSE UPDATE # 016 **********
    Phi_dat        Phi_Mod     Phi_Mod/Beta      Phi_Tot    
     61.318         61.805         1.6481         123.12    

 Total Number of Constraint Eqs: 0000652260
 Block     # Constraints     % of Total Error     Error per Constraint
     1            395142           64.619                  0.11035E-02
     2            257118           35.381                  0.92854E-03

 Chi2 is currently 0.9581       Target value is 1.0000    
 Mean error is -1.017    
 RMS error is 0.9788    
 Number of data culled is 0000000
 Prior to data culling ...
    Chi2 is 0.9581    
    Mean error is -1.017    
    RMS error is 0.9788    
 ***********************************************************************
Decrease in objective function is: 0.3007E-01
Solution did not converge at beta =  37.50    
Decreasing beta by 0.5000     from  37.50     to  18.75    


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