Recent content by cwlam08

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    wrf.exe in dm+sm mode

    Hi Ming Chen, I have AMD Ryzen 9 5900X cpu with the following topology: Package L#0 NUMANode L#0 (P#0 15GB) L3 L#0 (32MB) L2 L#0 (512KB) + L1d L#0 (32KB) + L1i L#0 (32KB) + Core L#0 PU L#0 (P#0) PU L#1 (P#12) L2 L#1 (512KB) + L1d L#1 (32KB) + L1i L#1 (32KB)...
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    accumulated total precipitation

    Many thanks, SRUDY_78 !
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    how to speed up unipost.exe execution on parallel NetCDF?

    Dear colleagues, I use wrf-nmm v4.3 on the cluster, it produces wrf_output files in parallel netcdf format. I also have UPP v3.1.1 for the model outputs postprocessing. The problem is in the very low speed of execution of unipost.exe file (2.5-3 times slower than with ordinary netcdf)! Can...
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    ECMWF Atmospheric Model high resolution 10-day forecast (HRES)

    Many thanks, Ming, I've decoded ECMWF Atmospheric Model high-resolution 10-day forecast grib2 files by g2print.exe tool and found the following: there are 7 parameters in these files: NAME PAR_NUM CAT Description --------------------------------------- UGRD 2 2 U component...
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    ECMWF Atmospheric Model high resolution 10-day forecast (HRES)

    I have WRF-ARW v4.3 and I try to use grib files of ECMWF Atmospheric Model high-resolution 10-day forecast as ICBC. The names of these files are like: D1D09200000092000011 D1D09200000092003001 D1D09200000092006001 D1D09200000092009001 D1D09200000092012001 D1D09200000092015001...
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    arw v3.9.1.1 with dm+sm

    Thanks, kwerner! I'd like to decrease the run time of wrf (it takes more than 2 hours) and only for this reason I've used dm+sm!
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    arw v3.9.1.1 with dm+sm

    I have a server with 2 Intel Xeon Gold 6148 CPUs, in which omp domains distributed in the following mode: CPUs 0-19 in domain 0 CPUs 20-39 in domain 1 I've compiled wrf.exe (arw v3.9.1.1) with Intel compilers (v19.1.3.304) and the option dm+sm, also with support of avx512 instructions set. (see...
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    accumulated total precipitation

    Hi kwerner, When I run the command: $ wgrib -v WRFPRS_d01.27 | grep APCP I receive: 308:7114270:D=2021020500:APCP:sfc:kpds=61,1,0:0-27hr acc:winds in grid direction:"Total precipitation [kg/m^2]
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    accumulated total precipitation

    I use WRF-ARW v4.2 and UPP v4.0.1. I'd like to put in wrfout files accumulated surface precipitation only for the period that indicated in history_interval parameter of namelist.input file. By defalt each output file store precipitation of all previous time period! How to do it? (I put in...
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    wrf.exe in dm+sm mode

    Hi Ming Chen, Can You help me?
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    wrf.exe in dm+sm mode

    Many thanks Ming Chen, in my case I have server with two intel cpus. I want to run 10 threads on each of these cpus. From Your answer I understand that I have to set OMP_NUM_THREADS to 10 and run wrf with command mpirun -n 2 wrf.exe. I did it, but only 2 wrf.exe processes were started! I have...
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    wrf.exe in dm+sm mode

    Dear colleagues, how to run wrf.exe if it is compiled in dm+sm mode?
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    wrf.exe crash on ecmwf data

    Many thanks Dear Ming Chen, I've reduced dt to 12 sec and it's work!
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    wrf.exe crash on ecmwf data

    the same for the wrf.exe version 4.1.3 *** Process received signal *** Signal: Segmentation fault (11) Signal code: Address not mapped (1) Failing at address: 0xfffffffe06930b78 [ 0] /lib64/libpthread.so.0[0x34b900f7e0] [ 1] ./wrf.exe[0x1dec40b] [ 2] ./wrf.exe[0x1dea859] [ 3]...
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    (RESOLVED) ungrib v4.0 error with new gfs data

    Dear Ming Chen, It was my mistake. I downloaded gfs files using incorrect download script (all downloaded files had the same forecast time). I've corrected the script and ungrib.exe started work. Many thanks.
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