TFD objects main edit

4 posts / 0 new
Last post
ujd.gov.sk Nucl...
TFD objects main edit

Dear Mods and Users

I would like to ask about reducing the sice and scope of .OUT file. There are the most important settings DTPRIN ISPRIN and  IOPTHC which control production of main edits and outputs (not plot data). However, the output file also contains many main edits for different individual TFD objects at seemingly random times. These objects are usually only the steam generators, not the whole main edit, and not even the whole SG but just some parts of it, all the while only some of the SG's are printed, not all of them. I am not aware of any option to produce a main edit for a single object and/or the criteria to produce such. I have tried setting the controls to a very low level with no success (dtprin>TE, isprin =1E5, inpprn =-1, iopthc =1) - a 100 second simulation ended after 14820 steps producing a 200 MB file!

Please see the attached excerpts from the output file (there are three, separated with ***). I suspect the main edits for individual objects are the largest contributor to the size of the output - standard computational step is at most a few lines (if something important happens). Even if a lot of small steps are required. Notice that two parts of SG1 are printed, while later other parts of other SG's are printed. When the calculation progresses, these main edits are produced at every step.  

Is there some setting I am overlooking? Are those individual object main edits produced because of very small time steps? Or is there a calculation problem that triggers these printouts?

Thank you for any insights!

.

.

T= 1.96225491676D+01 H0= 3.16543D-01 DT= 2.08338D-01 IZS=   1071 LM=   289 LFK=  54 CPU=    292 H0N:  XXML(   818)=SG2-dome  (  1); DT:  XXML(   970)=SG4-dome  (  1)
T= 1.98512935289D+01 H0= 2.28744D-01 DT= 2.28744D-01 IZS=   1072 LM=   289 LFK=   7 CPU=    293 H0N:  XXML(   970)=SG4-dome  (  1); DT:   NO LIMIT.
T= 2.00655275335D+01 H0= 2.14234D-01 DT= 2.14234D-01 IZS=   1073 LM=   289 LFK=   7 CPU=    293 H0N:  XXML(   970)=SG4-dome  (  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  21 (USER PROGR) ,LM=  290,LMPUD=  311,NI=  2440,N-FKT=   42
T= 2.01927595442D+01 H0= 2.01114D-01 DT= 1.27232D-01 IZS=   1074 LM=   290 LFK=  54 CPU=    293 H0N:  XXML(   818)=SG2-dome  (  1); DT:  XXML(   970)=SG4-dome  (  1)
FMAB3B: PARTIAL UPDATE: NNOD-PUD =   1 NEFPUD =     1
FIMP: PARTIAL UPDATE (PUD) OF JACOBIAN: IFTRIX= 3, LM=   290, LMPUD=   312, NI=  2440, N-FKT=    8
T= 2.03323593835D+01 H0= 1.39600D-01 DT= 1.39600D-01 IZS=   1075 LM=   290 LFK=   9 CPU=    294 H0N:  XXML(   970)=SG4-dome  (  1); DT:   NO LIMIT.
1
MAIN EDIT FOR TFD OBJECT SG2-dome 
+___________________________________

TIME= 2.03323593835D+01(S)   H0= 1.39600D-01   DT= 1.39600D-01   IZS=  1075   LM=   290   LFK= 10   CPU=   294

JUNCTIONS
+_________

      K     J GJ          DGJ/DT      GLJ         GVJ         GHJ         GHLJ        GHVJ        WFJ         WSONJ
              (KG/S)      (KG/S*S)    (KG/S)      (KG/S)      (W)         (W)         (W)         (M/S)       (M/S)
    126   715-9.47850D+00-2.52439D+00-9.80349D+00 3.24991D-01-9.36083D+06-1.02716D+07 9.10797D+05-3.82461D-02 2.35949D+02          
    126   716 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00 0.00000D+00        

******************************


T= 3.39737990799D+01 H0= 4.86141D-02 DT= 4.86141D-02 IZS=   2353 LM=   529 LFK=  51 CPU=    621 H0N:  XXML(   701)=SG1-dom-dc(  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  530,LMPUD=  540,NI=  2408,N-FKT=   44
T= 3.40172031779D+01 H0= 4.34041D-02 DT= 4.34041D-02 IZS=   2354 LM=   530 LFK=  51 CPU=    621 H0N:  XXML(   701)=SG1-dom-dc(  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  531,LMPUD=  540,NI=  2408,N-FKT=   44
T= 3.40561180166D+01 H0= 3.89148D-02 DT= 3.89148D-02 IZS=   2355 LM=   531 LFK=  51 CPU=    622 H0N:  XXML(   701)=SG1-dom-dc(  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  532,LMPUD=  540,NI=  2408,N-FKT=   44
T= 3.40911385864D+01 H0= 3.50206D-02 DT= 3.50206D-02 IZS=   2356 LM=   532 LFK=  51 CPU=    622 H0N:  XXML(   701)=SG1-dom-dc(  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  533,LMPUD=  540,NI=  2408,N-FKT=   44
T= 3.41227596507D+01 H0= 3.16211D-02 DT= 3.16211D-02 IZS=   2357 LM=   533 LFK=  51 CPU=    622 H0N:  XXML(   701)=SG1-dom-dc(  1); DT:   NO LIMIT.
1
MAIN EDIT FOR TFD OBJECT SG1-dom-dc
+___________________________________

TIME= 3.41227596507D+01(S)   H0= 3.16211D-02   DT= 3.16211D-02   IZS=  2357   LM=   533   LFK= 52   CPU=   622

CONTROL VOLUMES
+_______________

      K     I GEI         QEI         MLI         DMLI/DT     MVI         DMVI/DT     PRESS       DPRESS/DT   HLI         HVI
              (KG/S)      (W)         (KG)        (KG/S)      (KG)        (KG/S)      (PA)        (PA/S)      (J/KG)      (J/KG)
     98   701 0.00000D+00 0.00000D+00 5.59119D-02-1.00895D+01 0.00000D+00 0.00000D+00 3.50044D+06-5.41527D+01 1.04860D+06 2.80260D+06
     98  1032-2.42863D-04-2.65547D+02 2.48670D-01-3.17472D-01 3.88982D+00 2.25125D-01 3.50044D+06-5.41527D+01 1.04883D+06 2.80257D+06

      K     I XQM         DXQM/DT     XQH         AV          TL          TLS         TV          TVS         DTL/DT      DTV/DT
              (-)         (1/S)       (-)         (-)         (C)         (C)         (C)         (C)         (K/S)       (K/S)
     98   701 0.00000D+00 0.00000D+00-6.06340D-04 0.00000D+00 2.42354D+02 2.42575D+02 2.42575D+02 2.42575D+02 4.84589D-01-1.79837D-06
     98  1032 9.39913D-01 7.53711D-02 9.39869D-01 9.98619D-01 2.42403D+02 2.42574D+02 2.42566D+02 2.42574D+02 4.84589D-01-1.79837D-06

      K     I QI          QLI         QVI         SGHLI       SGHVI       HF          ROF         WI
              (W)         (W)         (W)         (W)         (W)         (J/KG)      (KG/M**3)   (M/S)
     98   701-1.03744D-01-1.03744D-01 0.00000D+00-1.05797D+07 0.00000D+00 1.04860D+06 8.10133D+02-3.73935D-02
     98  1032-3.65650D+02-9.20640D-02-3.65558D+02-3.32964D+05 6.30920D+05 2.69719D+06 1.86225D+01 1.39414D-02

MIXTURE LEVEL DATA
+__________________

      K   IWK VDRP       GLML       VBUB       GVML       GLEML      GVEML      GLCML      WML        ZML        ZCLML      DXXML/DT
              (M/S)      (KG/S)     (M/S)      (KG/S)     (KG/S)     (KG/S)     (KG/S)     (M/S)      (M)        (M)        (1/S)
     98    41 7.0787D-01 2.7089D-01 4.1573D-01 0.0000D+00 0.0000D+00 0.0000D+00 3.7807D-05-3.6415D-02 2.2824D+01 2.2824D+01-2.3731D+00

ML COMES TO BOTTOM OF ML TRACK,CV    701  ML TRACK    41 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
1
MAIN EDIT FOR TFD OBJECT SG1-dc1  
+___________________________________

TIME= 3.41227596507D+01(S)   H0= 3.16211D-02   DT= 3.16211D-02   IZS=  2357   LM=   533   LFK= 52   CPU=   622

JUNCTIONS
+_________

      K     J GJ          DGJ/DT      GLJ         GVJ         GHJ         GHLJ        GHVJ        WFJ         WSONJ
              (KG/S)      (KG/S*S)    (KG/S)      (KG/S)      (W)         (W)         (W)         (M/S)       (M/S)
     99   626 1.03604D+01-3.30360D-02 1.03604D+01 0.00000D+00 1.08639D+07 1.08639D+07 0.00000D+00 3.73935D-02 1.11319D+03          
     99   627 1.05099D+01-2.59217D-02 1.05099D+01 0.00000D+00 1.08122D+07 1.08122D+07 0.00000D+00 3.76474D-02 1.13017D+03          

JUNCTIONS WITH ONE MOMENTUM EQUATION
+____________________________________

      K     J DPJ         DPFRJ       DPMFJ       DPDZJ       DPDRJ       DPWRJ       GVJ/GJ
              (PA)        (PA)        (PA)        (PA)        (PA)        (PA)        (--)
     99   626-2.30785D+03-3.95449D-03 8.52369D-03 2.30782D+03 0.00000D+00 0.00000D+00 0.00000D+00
     99   627-6.51155D+03-1.14296D-02 2.94300D-03 6.51149D+03 0.00000D+00 0.00000D+00 0.00000D+00

      K     J WAVJ        WLJ         WVJ         WRJ         EDJ         AMIJ        DHYJ
              (M/S)       (M/S)       (M/S)       (M/S)       (--)        (M**2)      (M)
     99   626 3.73935D-02 3.73935D-02-3.78340D-01-4.15733D-01 0.00000D+00
     99   627 3.76474D-02 3.76474D-02-3.79948D-01-4.17595D-01 0.00000D+00

CONTROL VOLUMES
+_______________

      K     I GEI         QEI         MLI         DMLI/DT     MVI         DMVI/DT     PRESS       DPRESS/DT   HLI         HVI
              (KG/S)      (W)         (KG)        (KG/S)      (KG)        (KG/S)      (PA)        (PA/S)      (J/KG)      (J/KG)
     99   703 0.00000D+00 0.00000D+00 1.38367D+02-6.06310D-02 0.00000D+00 0.00000D+00 3.50275D+06-2.90028D+02 1.02877D+06 2.80259D+06

      K     I XQM         DXQM/DT     XQH         AV          TL          TLS         TV          TVS         DTL/DT      DTV/DT
              (-)         (1/S)       (-)         (-)         (C)         (C)         (C)         (C)         (K/S)       (K/S)
     99   703 0.00000D+00 0.00000D+00-1.20210D-02 0.00000D+00 2.38202D+02 2.42613D+02 2.42613D+02 2.42613D+02 2.44824D-01-9.62586D-06

      K     I QI          QLI         QVI         SGHLI       SGHVI       HF          ROF         WI
              (W)         (W)         (W)         (W)         (W)         (J/KG)      (KG/M**3)   (M/S)
     99   703 1.98266D+02 1.98266D+02 0.00000D+00 9.86695D+04 0.00000D+00 1.02877D+06 8.16275D+02 3.75205D-02

MIXTURE LEVEL DATA
+__________________

      K   IWK VDRP       GLML       VBUB       GVML       GLEML      GVEML      GLCML      WML        ZML        ZCLML      DXXML/DT
              (M/S)      (KG/S)     (M/S)      (KG/S)     (KG/S)     (KG/S)     (KG/S)     (M/S)      (M)        (M)        (1/S)
     99    42 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 2.2823D+01 2.2823D+01 0.0000D+00

ML SINKS FROM CV   701  DOWN TO CV   703  VIA JUNCTION   626 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
NUMBER OF ODE"S : IAD =  4672
+_________________
FTRIX LINKS GENERATED BY GCSM FOR THIS RUN:    28
TOTAL NUMBER OF FTRIX LINKS:                 2327
NUMBER OF FTRIX LINKS ELIMINATED SINCE DEFINED TWICE:    16
FTAB1: SUBSYSTEM STRUCTURE IS BASED ON FTRIX BLOCKS
FTAB1: FILL-IN OPTIMIZATION OF SUB-SYSTEMS STARTED.
        CURRENT NUMBER OF SUB-SYSTEMS:       1438
        CURRENT NUMBER OF SUB-SYSTEM LINKS:  2311
FTAB1 : SUBSYSTEM STRUCTURE NO.  1 FROM .itab1-FILE DOES NOT MATCH THE CURRRENT NETWORK.
         OLD NUMBER OF SUB-SYSTEMS:       1334
         OLD NUMBER OF SUB-SYSTEM LINKS:  2139
FTAB1 : SUBSYSTEM STRUCTURE NO.  2 FROM .itab1-FILE DOES NOT MATCH THE CURRRENT NETWORK.
         OLD NUMBER OF SUB-SYSTEMS:       1334
         OLD NUMBER OF SUB-SYSTEM LINKS:  2143

(...)


FTAB1 : SUBSYSTEM STRUCTURE NO. 32 FROM .itab1-FILE DOES NOT MATCH THE CURRRENT NETWORK.
         OLD NUMBER OF SUB-SYSTEMS:       1438
         OLD NUMBER OF SUB-SYSTEM LINKS:  2307

FTAB1 : SUBSYSTEM STRUCTURE NO. 33 FROM .itab1-FILE MATCHES THE CURRRENT NETWORK.
         NUMBER OF SUB-SYSTEMS:       1438
         NUMBER OF SUB-SYSTEM LINKS:  2311
FTRIX: DETERMINATION OF BLOCK COLUMNS CALCULATED JOINTLY FINISHED. CPU TIME CONSUMED:     0.000 S
DMLMOV - # OF ML TRACK,NITER =           42           3
D2ET:      1 VAPOUR TEMPERATURE AND QUALITY EQUATION(S) SWITCHED OFF, E.G. IN CV    703
1
MAIN EDIT FOR TFD OBJECT SG1-dom-dc
+___________________________________

TIME= 3.41227596507D+01(S)   H0= 3.16211D-02   DT= 3.16211D-02   IZS=  2357   LM=   533   LFK= 68   CPU=   622
CONTROL VOLUMES
+_______________

      K     I GEI         QEI         MLI         DMLI/DT     MVI         DMVI/DT     PRESS       DPRESS/DT   HLI         HVI
              (KG/S)      (W)         (KG)        (KG/S)      (KG)        (KG/S)      (PA)        (PA/S)      (J/KG)      (J/KG)
     98   701-2.40205D-04-2.55855D+02 2.48747D-01-3.16191D-01 3.89103D+00 6.03236D-03 3.50039D+06-9.50687D+02 1.04883D+06 2.80257D+06
      K     I XQM         DXQM/DT     XQH         AV          TL          TLS         TV          TVS         DTL/DT      DTV/DT
              (-)         (1/S)       (-)         (-)         (C)         (C)         (C)         (C)         (K/S)       (K/S)
     98   701 9.39913D-01 7.18769D-02 9.39869D-01 9.98619D-01 2.42403D+02 2.42574D+02 2.42566D+02 2.42574D+02 2.89570D-03-3.20895D-02

      K     I QI          QLI         QVI         SGHLI       SGHVI       HF          ROF         WI
              (W)         (W)         (W)         (W)         (W)         (J/KG)      (KG/M**3)   (M/S)
     98   701-3.65848D+02-9.12703D-02-3.65757D+02-3.31627D+05 1.68990D+04 2.69719D+06 1.86225D+01 7.10065D-02

MIXTURE LEVEL DATA
+__________________
      K   IWK VDRP       GLML       VBUB       GVML       GLEML      GVEML      GLCML      WML        ZML        ZCLML      DXXML/DT
              (M/S)      (KG/S)     (M/S)      (KG/S)     (KG/S)     (KG/S)     (KG/S)     (M/S)      (M)        (M)        (1/S)
     98    41 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 0.0000D+00 2.2823D+01 2.2824D+01-2.3731D+00
1
MAIN EDIT FOR TFD OBJECT SG1-dc1  
+___________________________________

TIME= 3.41227596507D+01(S)   H0= 3.16211D-02   DT= 3.16211D-02   IZS=  2357   LM=   533   LFK= 68   CPU=   622

JUNCTIONS
+_________

      K     J GJ          DGJ/DT      GLJ         GVJ         GHJ         GHLJ        GHVJ        WFJ         WSONJ
              (KG/S)      (KG/S*S)    (KG/S)      (KG/S)      (W)         (W)         (W)         (M/S)       (M/S)
     99   626 4.88743D-01-8.88058D+02 2.69609D-01 2.19134D-01 8.96912D+05 2.82775D+05 6.14137D+05 7.67391D-02 4.93262D+02          
     99   627 1.05099D+01-1.45369D+00 1.05099D+01 0.00000D+00 1.08122D+07 1.08122D+07 0.00000D+00 3.76474D-02 1.13017D+03          

JUNCTIONS WITH ONE MOMENTUM EQUATION
+____________________________________

      K     J DPJ         DPFRJ       DPMFJ       DPDZJ       DPDRJ       DPWRJ       GVJ/GJ
              (PA)        (PA)        (PA)        (PA)        (PA)        (PA)        (--)
     99   626-6.09754D+01-1.53541D-06-3.15651D-04 5.94578D+01 0.00000D+00 2.17162D-02 4.48362D-01
     99   627-8.81776D+03-1.54797D-02 2.94300D-03 8.81310D+03 0.00000D+00 0.00000D+00 0.00000D+00

      K     J WAVJ        WLJ         WVJ         WRJ         EDJ         AMIJ        DHYJ
              (M/S)       (M/S)       (M/S)       (M/S)       (--)        (M**2)      (M)
     99   626 7.67391D-02 7.04515D-01 3.66064D-02-6.67909D-01 0.00000D+00
     99   627 3.76474D-02 3.76474D-02-3.79948D-01-4.17595D-01 0.00000D+00

CONTROL VOLUMES
+_______________

      K     I GEI         QEI         MLI         DMLI/DT     MVI         DMVI/DT     PRESS       DPRESS/DT   HLI         HVI
              (KG/S)      (W)         (KG)        (KG/S)      (KG)        (KG/S)      (PA)        (PA/S)      (J/KG)      (J/KG)
     99   703 0.00000D+00 0.00000D+00 1.38228D+02-1.01639D+01 0.00000D+00 0.00000D+00 3.50045D+06-2.90028D+02 1.02877D+06 2.80246D+06
     99  1033-2.63945D-08-3.60686D-02 1.80364D-04 1.32671D-02 2.96729D-03 2.18267D-01 3.50045D+06-2.90028D+02 1.04883D+06 2.80257D+06

      K     I XQM         DXQM/DT     XQH         AV          TL          TLS         TV          TVS         DTL/DT      DTV/DT
              (-)         (1/S)       (-)         (-)         (C)         (C)         (C)         (C)         (K/S)       (K/S)
     99   703 0.00000D+00 0.00000D+00-1.20209D-02 0.00000D+00 2.38202D+02 2.42613D+02 2.42575D+02 2.42613D+02-5.74246D-02-9.62587D-06
     99  1033 9.42699D-01 4.42960D-11 9.42656D-01 9.98686D-01 2.42403D+02 2.42575D+02 2.42567D+02 2.42575D+02-5.74246D-02-9.62587D-06

      K     I QI          QLI         QVI         SGHLI       SGHVI       HF          ROF         WI
              (W)         (W)         (W)         (W)         (W)         (J/KG)      (KG/M**3)   (M/S)
     99   703 1.97877D+02 1.97877D+02 0.00000D+00-1.04940D+07 0.00000D+00 1.02877D+06 8.16275D+02 3.76474D-02
     99  1033 0.00000D+00 0.00000D+00 0.00000D+00 1.39150D+04 6.11709D+05 2.70208D+06 1.85690D+01 7.67391D-02

MIXTURE LEVEL DATA
+__________________

      K   IWK VDRP       GLML       VBUB       GVML       GLEML      GVEML      GLCML      WML        ZML        ZCLML      DXXML/DT
              (M/S)      (KG/S)     (M/S)      (KG/S)     (KG/S)     (KG/S)     (KG/S)     (M/S)      (M)        (M)        (1/S)
     99    42 7.0444D-01 2.5634D-01 4.1712D-01 0.0000D+00 0.0000D+00 0.0000D+00 8.6633D-04-3.6459D-02 2.2823D+01 2.2823D+01-1.6766D-03
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  20 (USER PROGR) ,LM=  534,LMPUD=  540,NI=  2408,N-FKT=   46
T= 3.41513985544D+01 H0= 2.86389D-02 DT= 2.86389D-02 IZS=   2358 LM=   534 LFK=  51 CPU=    624 H0N: PRESS(   711)=SG1-dc3   (  3); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  535,LMPUD=  540,NI=  2408,N-FKT=   46
T= 3.41961095624D+01 H0= 4.47110D-02 DT= 4.47110D-02 IZS=   2359 LM=   535 LFK=  53 CPU=    624 H0N:   XQM(   699)=SG1-separa(  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  536,LMPUD=  540,NI=  2408,N-FKT=   46
T= 3.43519509657D+01 H0= 1.55841D-01 DT= 1.55841D-01 IZS=   2360 LM=   536 LFK=  53 CPU=    625 H0N:   XQM(   729)=SG1-tank  (  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  537,LMPUD=  540,NI=  2408,N-FKT=   46
T= 3.46636944437D+01 H0= 3.11743D-01 DT= 3.11743D-01 IZS=   2361 LM=   537 LFK=  53 CPU=    625 H0N:    GJ(   350)=prz-lowpar(  1); DT:   NO LIMIT.
FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  12 (USER PROGR) ,LM=  538,LMPUD=  540,NI=  2408,N-FKT=   46
T= 3.50836944437D+01 H0= 4.20000D-01 DT= 4.20000D-01 IZS=   2362 LM=   538 LFK=  53 CPU=    625 H0N:    GJ(   366)=prz-lowhea(  1); DT:   NO LIMIT.

******************************

FIMP: COMPLETE UPDATE OF JACOBIAN VIA BLOCK-STRUCTURE: IFTRIX= 3 ,KEYJAC=  20 (USER PROGR) ,LM= 1459,LMPUD=  841,NI=  4211,N-FKT=   55
 T= 7.81808782404D+01 H0= 5.30159D-03 DT= 5.30159D-03 IZS=   3778 LM=  1459 LFK=  62 CPU=   1487 H0N:    GJ(   692)=SG2-dc3   (  2); DT:   NO LIMIT.
1
 MAIN EDIT FOR TFD OBJECT SG2-dc3  
+___________________________________

 TIME= 7.81808782404D+01(S)   H0= 5.30159D-03   DT= 5.30159D-03   IZS=  3778   LM=  1459   LFK= 63   CPU=  1487

 JUNCTIONS
+_________

      K     J GJ          DGJ/DT      GLJ         GVJ         GHJ         GHLJ        GHVJ        WFJ         WSONJ
              (KG/S)      (KG/S*S)    (KG/S)      (KG/S)      (W)         (W)         (W)         (M/S)       (M/S)
    117   691 2.58811D-01 5.39631D+00 2.76166D-01-1.73548D-02 1.87168D+05 2.35806D+05-4.86382D+04 4.06814D-02 0.00000D+00      (...)

Athlet-Admin

Dear user,

Thank you for your comment. The outfile shall provide comprehensive information on the simulation run. In order to support e.g. debugging, a certain amount of data is required. However, the file may become very large. So it is a good hint for future code development to better control and limit the amount of output!

At this stage, there are different options to reduce the print output. The most effective ones you already mentioned: INPPRN and IOPTHC. In addition, using PRINT OFF in the first input deck line suppresses the copy of the input file.

Regaring the posted case above: In that case, the printed main-edits are related to mixture level transition from one CV to another. If ML-transition appears, a print for the respective TFO is provided. Unfortunately, in the current code version, these TFO-related main edits cannot be suppressed.

Sometimes, one can observe repeated ML-transitions between two CVs, which is numerically disadvantageous (e.g. small time steps). One can play a little bit with the input parameters below PW MIXLEVEL to partly avoid this behavior (which also avoids the main edits).

One further hint: By crossing a CV border, the ML may also enter another TFO. In cases where the mixture level defined within the downcomer region of a SG with separator-model moves from one TFO to another TFO, the structure of the Jacobian changes, so that a new matrix structure has to be calculated. One can see this in the output snipped above: "FTAB1: FILL-IN OPTIMIZATION ...". If this happens often, you can (slightly) speed-up your simulation by using the option ISFTRX=1 (CW INTEGRAT), so that the matrix structure has not to be recalculated during the transient calculation.

Regards, Philipp

ujd.gov.sk Nucl...

Dear Mr. Schoeffel,

Thank you for your advice. I already found out that it was actually the VMLTO value that was causing trouble. Changing from the default 5e-4 to 5e-2 speeded up the calculation significantly! After some testing I decided to use the value of 5e-3 since it is closer to the default and still acceptably fast:

  • 5.D-4: IZS ~ 19 400, problem time reached -17,1s (I stopped the run there)
  • 5.D-3: IZS ~ 7000, prob. time 200s
  • 5.D-2: IZS ~ 6500, prob. time 200s

In future updates of Athlet, perhaps it can be considered to mention this in the manual - the calculation speed and time step size can be significantly inlfuenced by the VMLTO value, or the default value can be changed. Certainly, a possible option to supress the print output of every ML-transition is very welcome.

I believe I also included a suggestion for a thorough review of the output file controls in the yearly user report that is requested by the GRS from its Athlet licencees - I hope it found its way to the developers. It was proposed that the HTML file that provides the .out overview be expanded to have easier access to different subsections of the output. Also a link to jump to some important times or events could be provided? (or have the user specify the time-based links to jump to in the html file).

Thank you again for the assistance! Best regards

Lubomir Cincala, NRA of the Slovak Republic

Athlet-Admin

Dear Mr. Cincala,

Thank you for the recommendations and your feedback. All feedbacks provided by the users find their way and we try to consider it in the frame of our development projects as far (and soon) as possible. Regarding the VMLT0 parameter we have to update the documentation indeed. Thank you for this hint! 

The upcoming code version will include an improved html output format with a clearer tree structure and more bookmarks. If you have further suggestions regarding the html output (or other issues) please don't hesitate to contact us.

Thank you for your help. Best wishes

Philipp Schoeffel