[ET Trac] [Einstein Toolkit] #362: Improve roundoff accuracy of efficient RK4

[Einstein Toolkit]

#362: Improve roundoff accuracy of efficient RK4
--------------------------+-------------------------------------------------
  Reporter:  eschnett     |       Owner:        
      Type:  enhancement  |      Status:  closed
  Priority:  major        |   Milestone:        
 Component:  Cactus       |     Version:        
Resolution:  fixed        |    Keywords:        
--------------------------+-------------------------------------------------

Comment (by eschnett):

 Yes, there are no differences:


 $ diff -u testsuite-old.out testsuite-new.out | less
 --- testsuite-old.out   2011-03-25 22:47:58.000000000 -0400
 +++ testsuite-new.out   2011-03-25 21:35:32.000000000 -0400
 @@ -829,9 +829,9 @@
        GRHydro: GRHydro_test_tov_ppm_ML
           Success: 180 files compared, 54 differ in the last digits
        GRHydro: GRHydro_test_tov_ppm_ML_disable_internal_excision
 -         Success: 180 files compared, 57 differ in the last digits
 +         Success: 180 files compared, 54 differ in the last digits
        GRHydro: GRHydro_test_tov_ppm_no_trp_ML
 -         Success: 180 files compared, 52 differ in the last digits
 +         Success: 180 files compared, 51 differ in the last digits
        Hydro_InitExcision: diag_flip_pugh_eno
           Failure: 72 files missing, 0 files compared, 0 differ
        Hydro_InitExcision: diag_flip_pugh_ppm
 @@ -895,7 +895,7 @@
        ML_BSSN_Test: gw3d_McLachlan_ord4_15
           Failure: 105 files compared, 81 differ, 81 differ significantly
        ML_BSSN_Test: gw3d_McLachlan_ord4_30
 -         Success: 96 files compared, 9 differ in the last digits
 +         Success: 96 files compared, 81 differ in the last digits
        Multipole: test_22
           Success: 9 files compared, 9 differ in the last digits
        Multipole: test_31
 @@ -1020,7 +1020,7 @@

    Summary for configuration sim-debug

 -    Time                     -> Fri Mar 25 22:39:36 EDT 2011
 +    Time                     -> Fri Mar 25 21:32:09 EDT 2011
      Host                     -> erik-schnetters-macbook-pro.local
      User                     -> eschnett

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/362#comment:6>
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