コード例 #1
0
ファイル: tst_diskless2.c プロジェクト: halehawk/netcdf-c
int
main() {/* create tst_diskless2.nc */

    int  stat;  /* return status */
    int  ncid;  /* netCDF id */

    /* group ids */
    int root_grp;
    int g_grp;
    int h_grp;

    /* type ids */
    int enum_t_typ;
    int opaque_t_typ;
    int vlen_t_typ;
    int g_cmpd_t_typ;

    /* dimension ids */
    int lat_dim;
    int lon_dim;
    int time_dim;

    /* dimension lengths */
    size_t lat_len = 10;
    size_t lon_len = 5;
    size_t time_len = NC_UNLIMITED;

    /* variable ids */
    int lat_id;
    int lon_id;
    int time_id;
    int Z_id;
    int t_id;
    int p_id;
    int rh_id;
    int country_id;
    int tag_id;
    int h_compoundvar_id;

    /* rank (number of dimensions) for each variable */
#   define RANK_lat 1
#   define RANK_lon 1
#   define RANK_time 1
#   define RANK_Z 3
#   define RANK_t 3
#   define RANK_p 3
#   define RANK_rh 3
#   define RANK_country 3
#   define RANK_tag 0
#   define RANK_h_compoundvar 0

    /* variable shapes */
    int lat_dims[RANK_lat];
    int lon_dims[RANK_lon];
    int time_dims[RANK_time];
    int Z_dims[RANK_Z];
    int t_dims[RANK_t];
    int p_dims[RANK_p];
    int rh_dims[RANK_rh];
    int country_dims[RANK_country];

    /* enter define mode */
    stat = nc_create("tst_diskless2.nc", NC_DISKLESS|NC_WRITE|NC_CLOBBER|NC_NETCDF4, &ncid);
    check_err(stat,__LINE__,__FILE__);
    root_grp = ncid;
    stat = nc_def_grp(root_grp, "g", &g_grp);
    check_err(stat,__LINE__,__FILE__);
    stat = nc_def_grp(root_grp, "h", &h_grp);
    check_err(stat,__LINE__,__FILE__);

    {
        unsigned char econst;
        stat = nc_def_enum(root_grp, NC_UBYTE, "enum_t", &enum_t_typ);
        check_err(stat,__LINE__,__FILE__);
        econst = 0;
        stat = nc_insert_enum(root_grp, enum_t_typ, "Clear", &econst);
        check_err(stat,__LINE__,__FILE__);
        econst = 1;
        stat = nc_insert_enum(root_grp, enum_t_typ, "Cumulonimbus", &econst);
        check_err(stat,__LINE__,__FILE__);
        econst = 2;
        stat = nc_insert_enum(root_grp, enum_t_typ, "Stratus", &econst);
        check_err(stat,__LINE__,__FILE__);
    }

    stat = nc_def_opaque(root_grp, 11, "opaque_t", &opaque_t_typ);
    check_err(stat,__LINE__,__FILE__);

    stat = nc_def_vlen(root_grp, "vlen_t", NC_INT, &vlen_t_typ);
    check_err(stat,__LINE__,__FILE__);

    stat = nc_def_compound(g_grp, sizeof(g_cmpd_t), "cmpd_t", &g_cmpd_t_typ);
    check_err(stat,__LINE__,__FILE__);
    {
        stat = nc_insert_compound(g_grp, g_cmpd_t_typ, "f1", NC_COMPOUND_OFFSET(g_cmpd_t,f1), vlen_t_typ);
        check_err(stat,__LINE__,__FILE__);
        stat = nc_insert_compound(g_grp, g_cmpd_t_typ, "f2", NC_COMPOUND_OFFSET(g_cmpd_t,f2), enum_t_typ);
        check_err(stat,__LINE__,__FILE__);
    }


    /* define dimensions */
    stat = nc_def_dim(root_grp, "lat", lat_len, &lat_dim);
    check_err(stat,__LINE__,__FILE__);
    stat = nc_def_dim(root_grp, "lon", lon_len, &lon_dim);
    check_err(stat,__LINE__,__FILE__);
    stat = nc_def_dim(root_grp, "time", time_len, &time_dim);
    check_err(stat,__LINE__,__FILE__);

    /* define variables */

    lat_dims[0] = lat_dim;
    stat = nc_def_var(root_grp, "lat", NC_INT, RANK_lat, lat_dims, &lat_id);
    check_err(stat,__LINE__,__FILE__);

    lon_dims[0] = lon_dim;
    stat = nc_def_var(root_grp, "lon", NC_INT, RANK_lon, lon_dims, &lon_id);
    check_err(stat,__LINE__,__FILE__);

    time_dims[0] = time_dim;
    stat = nc_def_var(root_grp, "time", NC_INT, RANK_time, time_dims, &time_id);
    check_err(stat,__LINE__,__FILE__);

    Z_dims[0] = time_dim;
    Z_dims[1] = lat_dim;
    Z_dims[2] = lon_dim;
    stat = nc_def_var(root_grp, "Z", NC_FLOAT, RANK_Z, Z_dims, &Z_id);
    check_err(stat,__LINE__,__FILE__);

    t_dims[0] = time_dim;
    t_dims[1] = lat_dim;
    t_dims[2] = lon_dim;
    stat = nc_def_var(root_grp, "t", NC_FLOAT, RANK_t, t_dims, &t_id);
    check_err(stat,__LINE__,__FILE__);

    p_dims[0] = time_dim;
    p_dims[1] = lat_dim;
    p_dims[2] = lon_dim;
    stat = nc_def_var(root_grp, "p", NC_DOUBLE, RANK_p, p_dims, &p_id);
    check_err(stat,__LINE__,__FILE__);

    rh_dims[0] = time_dim;
    rh_dims[1] = lat_dim;
    rh_dims[2] = lon_dim;
    stat = nc_def_var(root_grp, "rh", NC_INT, RANK_rh, rh_dims, &rh_id);
    check_err(stat,__LINE__,__FILE__);

    country_dims[0] = time_dim;
    country_dims[1] = lat_dim;
    country_dims[2] = lon_dim;
    stat = nc_def_var(root_grp, "country", NC_STRING, RANK_country, country_dims, &country_id);
    check_err(stat,__LINE__,__FILE__);

    stat = nc_def_var(root_grp, "tag", NC_UBYTE, RANK_tag, 0, &tag_id);
    check_err(stat,__LINE__,__FILE__);

    stat = nc_def_var(h_grp, "compoundvar", g_cmpd_t_typ, RANK_h_compoundvar, 0, &h_compoundvar_id);
    check_err(stat,__LINE__,__FILE__);

    /* assign global attributes */

    {
        static const int vlen_2[] = {17, 18, 19} ;
        static const vlen_t globalatt_att[1] = {{3, (void*)vlen_2}} ;
        stat = nc_put_att(root_grp, NC_GLOBAL, "globalatt", vlen_t_typ, 1, globalatt_att);
        check_err(stat,__LINE__,__FILE__);
    }


    /* assign per-variable attributes */

    {
        stat = nc_put_att_text(root_grp, lat_id, "long_name", 8, "latitude");
        check_err(stat,__LINE__,__FILE__);
    }

    {
        stat = nc_put_att_text(root_grp, lat_id, "units", 13, "degrees_north");
        check_err(stat,__LINE__,__FILE__);
    }

    {
        stat = nc_put_att_text(root_grp, lon_id, "long_name", 9, "longitude");
        check_err(stat,__LINE__,__FILE__);
    }

    {
        stat = nc_put_att_text(root_grp, lon_id, "units", 12, "degrees_east");
        check_err(stat,__LINE__,__FILE__);
    }

    {
        stat = nc_put_att_text(root_grp, time_id, "units", 31, "seconds since 1992-1-1 00:00:00");
        check_err(stat,__LINE__,__FILE__);
    }

    {
        static const char* Z_units_att[1] = {"geopotential meters"} ;
        stat = nc_put_att_string(root_grp, Z_id, "units", 1, Z_units_att);
        check_err(stat,__LINE__,__FILE__);
    }

    {
        static const float Z_valid_range_att[2] = {((float)0), ((float)5000)} ;
        stat = nc_put_att_float(root_grp, Z_id, "valid_range", NC_FLOAT, 2, Z_valid_range_att);
        check_err(stat,__LINE__,__FILE__);
    }

    {
        static const double p_FillValue_att[1] = {((double)-9999)} ;
        stat = nc_put_att_double(root_grp, p_id, "_FillValue", NC_DOUBLE, 1, p_FillValue_att);
        check_err(stat,__LINE__,__FILE__);
    }

    {
        static const int rh_FillValue_att[1] = {-1} ;
        stat = nc_put_att_int(root_grp, rh_id, "_FillValue", NC_INT, 1, rh_FillValue_att);
        check_err(stat,__LINE__,__FILE__);
    }


    /* leave define mode */
    stat = nc_enddef (root_grp);
    check_err(stat,__LINE__,__FILE__);

    /* assign variable data */

    {
        int lat_data[10] = {0, 10, 20, 30, 40, 50, 60, 70, 80, 90} ;
        size_t lat_startset[1] = {0} ;
        size_t lat_countset[1] = {10};
        stat = nc_put_vara(root_grp, lat_id, lat_startset, lat_countset, lat_data);
        check_err(stat,__LINE__,__FILE__);
    }


    {
        int lon_data[5] = {-140, -118, -96, -84, -52} ;
        size_t lon_startset[1] = {0} ;
        size_t lon_countset[1] = {5};
        stat = nc_put_vara(root_grp, lon_id, lon_startset, lon_countset, lon_data);
        check_err(stat,__LINE__,__FILE__);
    }


    {
        static const int vlen_10[] = {3, 4, 5} ;
        size_t zero = 0;
        static g_cmpd_t h_compoundvar_data[1] = {{{3, (void*)vlen_10}, 2}};
        stat = nc_put_var1(h_grp, h_compoundvar_id, &zero, h_compoundvar_data);
        check_err(stat,__LINE__,__FILE__);
    }


    stat = nc_close(root_grp);
    check_err(stat,__LINE__,__FILE__);
    return 0;
}
コード例 #2
0
ファイル: LoopStatistics.cpp プロジェクト: SeisSol/SeisSol
void seissol::LoopStatistics::writeSamples() {
  std::string loopStatFile = utils::Env::get<std::string>("SEISSOL_LOOP_STAT_PREFIX", "");
  if (!loopStatFile.empty()) {
#if defined(USE_NETCDF) && defined(USE_MPI)
    unsigned nRegions = m_times.size();
    for (unsigned region = 0; region < nRegions; ++region) {
      std::ofstream file;
      std::stringstream ss;
      ss << loopStatFile << m_regions[region] << ".nc";
      std::string fileName = ss.str();
      
      int nSamples = m_times[region].size();
      int sampleOffset;
      MPI_Scan(&nSamples, &sampleOffset, 1, MPI_INT, MPI_SUM, seissol::MPI::mpi.comm());
      
      int ncid, stat;
      stat = nc_create_par(fileName.c_str(), NC_MPIIO | NC_CLOBBER | NC_NETCDF4, seissol::MPI::mpi.comm(), MPI_INFO_NULL, &ncid); check_err(stat,__LINE__,__FILE__);
      
      int sampledim, rankdim, sampletyp, offsetid, sampleid;
      
      stat = nc_def_dim(ncid, "rank", 1+seissol::MPI::mpi.size(), &rankdim);             check_err(stat,__LINE__,__FILE__);
      stat = nc_def_dim(ncid, "sample", NC_UNLIMITED, &sampledim); check_err(stat,__LINE__,__FILE__);
      
      stat = nc_def_compound(ncid, sizeof(Sample), "Sample", &sampletyp); check_err(stat,__LINE__,__FILE__);
      {
        stat = nc_insert_compound(ncid, sampletyp, "time", NC_COMPOUND_OFFSET(Sample,time), NC_DOUBLE);   check_err(stat,__LINE__,__FILE__);
        stat = nc_insert_compound(ncid, sampletyp, "loopLength", NC_COMPOUND_OFFSET(Sample,numIters), NC_UINT); check_err(stat,__LINE__,__FILE__);
      }
      
      stat = nc_def_var(ncid, "offset", NC_INT,   1, &rankdim,   &offsetid); check_err(stat,__LINE__,__FILE__);
      stat = nc_def_var(ncid, "sample", sampletyp, 1, &sampledim, &sampleid); check_err(stat,__LINE__,__FILE__);
      
      stat = nc_enddef(ncid); check_err(stat,__LINE__,__FILE__);
      
      stat = nc_var_par_access(ncid, offsetid, NC_COLLECTIVE); check_err(stat,__LINE__,__FILE__);
      stat = nc_var_par_access(ncid, sampleid, NC_COLLECTIVE); check_err(stat,__LINE__,__FILE__);
  
      size_t start, count;
      int offsetData[2];
      if (seissol::MPI::mpi.rank() == 0) {
        start = 0;
        count = 2;        
        offsetData[0] = 0;
      } else {
        start = 1+seissol::MPI::mpi.rank();
        count = 1;
      }
      offsetData[count-1] = sampleOffset;
      stat = nc_put_vara_int(ncid, offsetid, &start, &count, offsetData);  check_err(stat,__LINE__,__FILE__);
      
      start = sampleOffset-nSamples;
      count = nSamples;
      stat = nc_put_vara(ncid, sampleid, &start, &count, m_times[region].data());  check_err(stat,__LINE__,__FILE__);      
      
      stat = nc_close(ncid); check_err(stat,__LINE__,__FILE__);
    }
#else
    logWarning(seissol::MPI::mpi.rank()) << "Writing loop statistics requires NetCDF and MPI.";
#endif
  }
}