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This page should describe Validation Tests performed for this stand alone feature and should provide links to all the result pages.

Table of Contents

Summary


We run a 1 degree FC compset, FC5AV1C-L, simulation for 6 years and create 5-year (year 2 to 6) climatologies from it. We plot climatologies vs observations and vs default configuration. The default configuration consists of default hydrostatic dycore with default settings. Preliminary runs are described in /wiki/spaces/COM/pages/780664997 (with preqx dycore) and in /wiki/spaces/COM/pages/941096965 (with theta dycore), each relevant run also has entry for its climatologies.

SL transport was first evaluated in the preqx dycore using the E3SM v1 atmosphere at 1 degree. Results and some technical details are presented in /wiki/spaces/COM/pages/916324466 . The SL transport was shown to be 6x faster than Eulerian transport.

With theta dycore, we only explore the hydrostatic option for now. The preliminary configuration for theta-l dycore and SL transport is Run6 in /wiki/spaces/COM/pages/997752860 and is summarized below. We assess the climatology differences to be small overall, but below we note below specific differences that an expert should evaluate. In this validation test, the transport speedup is over 6x and the overall dycore speedup is approximately 3.7x for an FC compset.

Validation Test 1

Validation Test 1: preqx dycore and SL transport for 1 degree

Date last modified: Sept. 2018

Contributors: 

Provenance: commit 099c4dd, A. Bradley's fork of E3SM

Results: /wiki/spaces/COM/pages/780664997 , Run 19.


We ran FC5AV1C-L for 6 years with preqx dycore and SL transport and made 5-year climatologies. With diagnostics package, we compared climatologies of the new run to the default (preqx dycore, Eulerian transport, default E3SM settings) run from the same compset. Results are in https://portal.nersc.gov/project/acme/onguba/sl/sl-fastest.2369911-latlon-vs-f2/viewer/latitude-longitude/index.html for latlon plots and in https://portal.nersc.gov/project/acme/onguba/sl/sl-fastest.2369911-zonal-vs-f2/viewer/pressure-latitude/index.html for zonal plots. Our understanding from communicating with C. Golaz is that differences are relatively minor and are expected.

This task required new coupling mechanisms between homme and physics (ftypes). Tests for all coupling schemes are now in nightlies with baselines.


Validation Test 2

Validation Test 2: theta-l dycore and SL transport for 1 degree

Date last modified: June 2019

Contributors: 

Provenance: commit a0ff14648bf1f, A. Bradley's fork (PR #3017, now in master)

Results: /wiki/spaces/COM/pages/997752860 , Run6 only


We ran FC5AV1C-L for 6 years with theta-l hydrostatic dycore and SL transport and made 5-year climatologies. With diagnostics package, we compared climatologies of the new run to the default (preqx dycore, Eulerian transport, default E3SM settings) run from the same compset. Results are available here:

...

https://web.lcrc.anl.gov/public/e3sm/diagnostic_output/onguba/theta/theta.freeze.36292-nuq.zonal/viewer/pressure-latitude/index.html .

There are some differences, in particular, for seasonal jets ("U global" pressure-latitude images) and for tropopause T200mb ("is a somewhat large positive temperature bias at approximately 300 to 200 mb near the poles, visible in the "T global" pressure-latitude images and "T-200mb global" latitude-longitude images). An expert should evaluate these. The T200mb difference is a positive temperature bias at approximately 300 to 200 mb near the poles. There is a corresponding negative bias in relative humidity in these same regions.this difference.

Test for theta-l dycore and SL transport was added to nightlies with baselines.

...

Code Block
      "a:CAM_run3"                                         105121   3753.256836
              "a:prim_step_rX"                             105121   3343.381592
*                  "a:ApplyCAMForcing"                      735847      7.524807
                    "a:compute_andor_apply_rhs"           3.2e+06   1101.156738
                      "a:caar_bexchV"                     3.2e+06    337.900726
                    "a:advance_hypervis"                   630726    780.730652
                      "a:biwkdp3d_bexchV"                 1.3e+06    102.427208
                      "a:ahdp_bexchV2"                    1.3e+06    100.035515
                "a:prim_step_advec"                        105121   1439.427490
                  "a:PAT_remap"                            105121   1439.272949
                    "a:Prim_Advec_Tracers_remap_ALE"       105121   1439.108643
                      "a:ALE_RKdss_bexchV"                 105121      8.113382
                      "a:SLMM_v2x"                         105121     14.941418
                      "a:SLMM_csl"                         105121    597.916321
                      "a:advance_hypervis_scalar"          105121    168.496979
                        "a:biwksc_bexchV"                  630726     76.498428
                        "a:ah_scalar_bexchV"               630726     58.095295
                      "a:CEDR"                             105121    269.654694
                      "a:CEDR_local"                       105121    204.295685
                      "a:SL_dss"                           105121    166.422882
                        "a:SLMM_bexchV"                    105121     83.393738
              "a:vertical_remap"                           105121    265.354736
              "a:prim_run_subcyle_diags"                   105121     87.252365
              "a:prim_printstate"                            1316     54.871109

...

Code Block
      "a:CAM_run3"                                         105121  13991.816406
              "a:prim_step_rX"                             630726  13261.229492
 *               "a:ApplyCAMForcing"                        840968      3.469257
                "a:prim_step_dyn"                          630726   3745.105225
                    "a:U3-5stage_timestep"                 630726   1602.538330
                      "a:compute_and_apply_rhs"           3.2e+06   1593.809937
                        "a:caar_bexchV"                   3.2e+06   1155.628540
                    "a:advance_hypervis_dp"                630726   2140.412109
                      "a:biwkdp3d_bexchV"                 1.9e+06    712.871643
                      "a:ahdp_bexchV2"                    1.9e+06    936.731812
                "a:prim_step_advec"                        630726   9497.830078
                  "a:PAT_remap"                            630726   9496.788086
                    "a:prim_advec_tracers_remap_rk2"       630726   9495.913086
                      "a:precomput_divdp"                  630726     17.915401
                      "a:euler_step_0"                     630726   3421.647949
 *                       "a:bihmix_qminmax"                1.9e+06   4816.387207
                          "a:eus_neighbor_minmax1"         630726   1564.957153
                            "a:nmm_bexchV"                 630726   1376.029663
                          "a:nmm_bexchS_start"             630726     97.431732
                          "a:biwksc_bexchV"                630726    889.131531
                          "a:nmm_bexchS_fini"              630726     22.110565
*                        "a:eus_2d_advec"                  1.9e+06   4555.705566
                          "a:eus_bexchV"                  1.9e+06   1869.862549
                      "a:euler_step_1"                     630726   1699.480957
                      "a:euler_step_2"                     630726   4257.039062
                      "a:qdp_tavg"                         630726     96.223808
              "a:vertical_remap"                           210242    498.846558
              "a:prim_run_subcyle_diags"                   210242    156.251953
              "a:prim_printstate"                            1316     68.469025

...