1! This is part of the netCDF package. Copyright 2006-2019 2! University Corporation for Atmospheric Research/Unidata. See 3! COPYRIGHT file for conditions of use. 4 5! This program tests netCDF-4 variable functions from fortran. 6 7! $Id: f90tst_vars2.f90,v 1.7 2010/01/25 21:01:07 ed Exp $ 8 9program f90tst_vars2 10 use typeSizes 11 use netcdf 12 implicit none 13 14 ! This is the name of the data file we will create. 15 character (len = *), parameter :: FILE_NAME = "f90tst_vars2.nc" 16 17 ! We are writing 2D data, a 6 x 12 grid. 18 integer, parameter :: MAX_DIMS = 2 19 integer, parameter :: NX = 6, NY = 12 20 integer :: data_out(NY, NX), data_in(NY, NX) 21 integer :: data_out_1d(NX), data_in_1d(NX) 22 23 ! We need these ids and other gunk for netcdf. 24 integer :: ncid, varid1, varid2, varid3, varid4, varid5, dimids(MAX_DIMS) 25 integer :: chunksizes(MAX_DIMS), chunksizes_in(MAX_DIMS) 26 integer :: x_dimid, y_dimid 27 integer :: nvars, ngatts, ndims, unlimdimid, file_format 28 integer :: x, y 29 integer, parameter :: DEFLATE_LEVEL = 4 30 integer (kind = EightByteInt), parameter :: TOE_SAN_VALUE = 2147483648_EightByteInt 31 character (len = *), parameter :: VAR1_NAME = "Chon-Ji" 32 character (len = *), parameter :: VAR2_NAME = "Tan-Gun" 33 character (len = *), parameter :: VAR3_NAME = "Toe-San" 34 character (len = *), parameter :: VAR4_NAME = "Won-Hyo" 35 character (len = *), parameter :: VAR5_NAME = "Yul-Guk" 36 integer, parameter :: CACHE_SIZE = 8, CACHE_NELEMS = 571 37 integer, parameter :: CACHE_PREEMPTION = 66 38 39 ! Information read back from the file to check correctness. 40 integer :: varid1_in, varid2_in, varid3_in, varid4_in, varid5_in 41 integer :: xtype_in, ndims_in, natts_in, dimids_in(MAX_DIMS) 42 character (len = nf90_max_name) :: name_in 43 integer :: endianness_in, deflate_level_in 44 logical :: shuffle_in, fletcher32_in, contiguous_in 45 integer (kind = EightByteInt) :: toe_san_in 46 integer :: cache_size_in, cache_nelems_in, cache_preemption_in 47 48 print *, '' 49 print *,'*** Testing definition of netCDF-4 vars from Fortran 90.' 50 51 ! Create some pretend data. 52 do x = 1, NX 53 do y = 1, NY 54 data_out(y, x) = (x - 1) * NY + (y - 1) 55 end do 56 end do 57 do x = 1, NX 58 data_out_1d(x) = x 59 end do 60 61 ! Create the netCDF file. 62 call check(nf90_create(FILE_NAME, nf90_netcdf4, ncid, cache_nelems = CACHE_NELEMS, & 63 cache_size = CACHE_SIZE)) 64 65 ! Define the dimensions. 66 call check(nf90_def_dim(ncid, "x", NX, x_dimid)) 67 call check(nf90_def_dim(ncid, "y", NY, y_dimid)) 68 dimids = (/ y_dimid, x_dimid /) 69 70 ! Define some variables. 71 chunksizes = (/ NY, NX /) 72 call check(nf90_def_var(ncid, VAR1_NAME, NF90_INT, dimids, varid1, chunksizes = chunksizes, & 73 shuffle = .TRUE., fletcher32 = .TRUE., endianness = nf90_endian_big, deflate_level = DEFLATE_LEVEL)) 74 call check(nf90_def_var(ncid, VAR2_NAME, NF90_INT, dimids, varid2, contiguous = .TRUE.)) 75 call check(nf90_def_var(ncid, VAR3_NAME, NF90_INT64, varid3)) 76 call check(nf90_def_var(ncid, VAR4_NAME, NF90_INT, x_dimid, varid4, contiguous = .TRUE.)) 77 call check(nf90_def_var(ncid, VAR5_NAME, NF90_INT, dimids, varid5, chunksizes = chunksizes)) 78 79 ! Write the pretend data to the file. 80 call check(nf90_put_var(ncid, varid1, data_out)) 81 call check(nf90_put_var(ncid, varid2, data_out)) 82 call check(nf90_put_var(ncid, varid3, TOE_SAN_VALUE)) 83 call check(nf90_put_var(ncid, varid4, data_out_1d)) 84 call check(nf90_put_var(ncid, varid5, data_out)) 85 86 ! Close the file. 87 call check(nf90_close(ncid)) 88 89 ! Reopen the file. 90 call check(nf90_open(FILE_NAME, nf90_nowrite, ncid)) 91 92 ! Check some stuff out. 93 call check(nf90_inquire(ncid, ndims, nvars, ngatts, unlimdimid, file_format)) 94 if (ndims /= 2 .or. nvars /= 5 .or. ngatts /= 0 .or. unlimdimid /= -1 .or. & 95 file_format /= nf90_format_netcdf4) stop 2 96 97 ! Get varids. 98 call check(nf90_inq_varid(ncid, VAR1_NAME, varid1_in)) 99 call check(nf90_inq_varid(ncid, VAR2_NAME, varid2_in)) 100 call check(nf90_inq_varid(ncid, VAR3_NAME, varid3_in)) 101 call check(nf90_inq_varid(ncid, VAR4_NAME, varid4_in)) 102 call check(nf90_inq_varid(ncid, VAR5_NAME, varid5_in)) 103 104 ! Check variable 1. 105 call check(nf90_inquire_variable(ncid, varid1_in, name_in, xtype_in, ndims_in, dimids_in, & 106 natts_in, chunksizes = chunksizes_in, endianness = endianness_in, fletcher32 = fletcher32_in, & 107 deflate_level = deflate_level_in, shuffle = shuffle_in, cache_size = cache_size_in, & 108 cache_nelems = cache_nelems_in, cache_preemption = cache_preemption_in)) 109 if (name_in .ne. VAR1_NAME .or. xtype_in .ne. NF90_INT .or. ndims_in .ne. MAX_DIMS .or. & 110 natts_in .ne. 0 .or. dimids_in(1) .ne. dimids(1) .or. dimids_in(2) .ne. dimids(2)) stop 3 111 if (chunksizes_in(1) /= chunksizes(1) .or. chunksizes_in(2) /= chunksizes(2)) & 112 stop 4 113 if (endianness_in .ne. nf90_endian_big) stop 5 114 115 ! This test code commented out because it fails parallel builds, 116 ! which don't use the cache, so don't get the same size 117 ! settings. Since we are not (yet) using a preprocessor on the 118 ! fortran code, there's no way to ifdef out these tests. 119 ! print *, cache_size_in, cache_nelems_in, cache_preemption 120 ! if (cache_size_in .ne. 16 .or. cache_nelems_in .ne. 4133 .or. & 121 ! cache_preemption .ne. CACHE_PREEMPTION) stop 555 122 123 ! Check variable 2. 124 call check(nf90_inquire_variable(ncid, varid2_in, name_in, xtype_in, ndims_in, dimids_in, & 125 natts_in, contiguous = contiguous_in, endianness = endianness_in, fletcher32 = fletcher32_in, & 126 deflate_level = deflate_level_in, shuffle = shuffle_in)) 127 if (name_in .ne. VAR2_NAME .or. xtype_in .ne. NF90_INT .or. ndims_in .ne. MAX_DIMS .or. & 128 natts_in .ne. 0 .or. dimids_in(1) .ne. dimids(1) .or. dimids_in(2) .ne. dimids(2)) stop 6 129 if (deflate_level_in .ne. 0 .or. .not. contiguous_in .or. fletcher32_in .or. shuffle_in) stop 7 130 131 ! Check variable 3. 132 call check(nf90_inquire_variable(ncid, varid3_in, name_in, xtype_in, ndims_in, dimids_in, & 133 natts_in, contiguous = contiguous_in, endianness = endianness_in, fletcher32 = fletcher32_in, & 134 deflate_level = deflate_level_in, shuffle = shuffle_in)) 135 if (name_in .ne. VAR3_NAME .or. xtype_in .ne. NF90_INT64 .or. ndims_in .ne. 0 .or. & 136 natts_in .ne. 0) stop 8 137 if (deflate_level_in .ne. 0 .or. .not. contiguous_in .or. fletcher32_in .or. shuffle_in) stop 9 138 139 ! Check variable 4. 140 call check(nf90_inquire_variable(ncid, varid4_in, name_in, xtype_in, ndims_in, dimids_in, & 141 natts_in, contiguous = contiguous_in, endianness = endianness_in, fletcher32 = fletcher32_in, & 142 deflate_level = deflate_level_in, shuffle = shuffle_in)) 143 if (name_in .ne. VAR4_NAME .or. xtype_in .ne. NF90_INT .or. ndims_in .ne. 1 .or. & 144 natts_in .ne. 0 .or. dimids_in(1) .ne. x_dimid) stop 10 145 if (deflate_level_in .ne. 0 .or. .not. contiguous_in .or. fletcher32_in .or. shuffle_in) stop 11 146 147 ! Check the data. 148 call check(nf90_get_var(ncid, varid1_in, data_in)) 149 do x = 1, NX 150 do y = 1, NY 151 if (data_out(y, x) .ne. data_in(y, x)) stop 12 152 end do 153 end do 154 call check(nf90_get_var(ncid, varid2_in, data_in)) 155 do x = 1, NX 156 do y = 1, NY 157 if (data_out(y, x) .ne. data_in(y, x)) stop 13 158 end do 159 end do 160 call check(nf90_get_var(ncid, varid3_in, toe_san_in)) 161 if (toe_san_in .ne. TOE_SAN_VALUE) stop 14 162 call check(nf90_get_var(ncid, varid4_in, data_in_1d)) 163 do x = 1, NX 164 if (data_out_1d(x) .ne. data_in_1d(x)) stop 15 165 end do 166 call check(nf90_get_var(ncid, varid5_in, data_in)) 167 do x = 1, NX 168 do y = 1, NY 169 if (data_out(y, x) .ne. data_in(y, x)) stop 12 170 end do 171 end do 172 173 ! Close the file. 174 call check(nf90_close(ncid)) 175 176 print *,'*** SUCCESS!' 177 178contains 179! This subroutine handles errors by printing an error message and 180! exiting with a non-zero status. 181 subroutine check(errcode) 182 use netcdf 183 implicit none 184 integer, intent(in) :: errcode 185 186 if(errcode /= nf90_noerr) then 187 print *, 'Error: ', trim(nf90_strerror(errcode)) 188 stop 2 189 endif 190 end subroutine check 191end program f90tst_vars2 192 193