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Re: 19990813: NCSNC problem with netCDF v3.4
- Subject: Re: 19990813: NCSNC problem with netCDF v3.4
- Date: Tue, 17 Aug 1999 08:39:36 -0600
Carlie,
>Date: Mon, 16 Aug 1999 18:30:18 -0400 (EDT)
>From: Carlie Coats <address@hidden>
>Organization: MCNC/NCSC Environmental Programs
>To: address@hidden (Steve Emmerson)
>Subject: Re: 19990813: NCSNC problem with netCDF v3.4
>Keywords: 199908101517.JAA21345
In the above message, you wrote:
> We can also give you the following information:
>
> 1. The problem does not reproduce when the consumer Q runs
> under Solaris (we've checked combinations with NFS and
> locally mounted, and both Solaris and IRIX producers.
That's good to know. I've made my testbed and it worked under Solaris.
I'll be testing it under IRIX64 now.
One of the things I found is that the netCDF file must be created by P
and opened by Q with the NC_SHARE mode-bit turned on; otherwise, it
won't work. Do you know if your P and Q both set that bit?
> 2. The problem does not reproduce with NFS-mounted files:
> a. If the producer P is NFS-mounting the file, which
> is local for the consumer Q, the problem does not
> happen.
> b. Similarly, if the file is local for P and NFS for Q,
> the problem does not happen.
> c. Running producer P and consumer Q on the same machine,
> with file on a NSF-mounted disk, the problem does not
> happen.
> d. Running producer P and consumer Q on the same machine,
> with file on a locally-mounted disk, the problem
> happens.
Good to know. I'll be testing on local disk.
>
> cut below here for partial ncdump for the first file we noticed this
> problem with...
> (Solaris "vi" barfs over "line too long" on some of the trailing
> CHARACTER attributes
>
> ----------------------------------------
> netcdf CHEM_CONC_3D_G1 {
> dimensions:
> TSTEP = UNLIMITED ; // (4 currently)
> DATE-TIME = 2 ;
> LAY = 30 ;
> VAR = 37 ;
> ROW = 47 ;
> COL = 57 ;
> variables:
> int TFLAG(TSTEP, VAR, DATE-TIME) ;
> TFLAG:units = "<YYYYDDD,HHMMSS>" ;
> TFLAG:long_name = "TFLAG " ;
> TFLAG:var_desc = "Timestep-valid flags: (1) YYYYDDD or (2)
> HHMMSS " ;
> float NO(TSTEP, LAY, ROW, COL) ;
> NO:long_name = "NO " ;
> NO:units = "PPMV " ;
> NO:var_desc = "Variable NO output from RT-MAQSIP
> " ;
> float NO2(TSTEP, LAY, ROW, COL) ;
> NO2:long_name = "NO2 " ;
> NO2:units = "PPMV " ;
> NO2:var_desc = "Variable NO2 output from RT-MAQSIP
> " ;
> float NO3(TSTEP, LAY, ROW, COL) ;
> NO3:long_name = "NO3 " ;
> NO3:units = "PPMV " ;
> NO3:var_desc = "Variable NO3 output from RT-MAQSIP
> " ;
> float N2O5(TSTEP, LAY, ROW, COL) ;
> N2O5:long_name = "N2O5 " ;
> N2O5:units = "PPMV " ;
> N2O5:var_desc = "Variable N2O5 output from
> RT-MAQSIP " ;
> float HONO(TSTEP, LAY, ROW, COL) ;
> HONO:long_name = "HONO " ;
> HONO:units = "PPMV " ;
> HONO:var_desc = "Variable HONO output from
> RT-MAQSIP " ;
> float HNO3(TSTEP, LAY, ROW, COL) ;
> HNO3:long_name = "HNO3 " ;
> HNO3:units = "PPMV " ;
> HNO3:var_desc = "Variable HNO3 output from
> RT-MAQSIP " ;
> float HNO4(TSTEP, LAY, ROW, COL) ;
> HNO4:long_name = "HNO4 " ;
> HNO4:units = "PPMV " ;
> HNO4:var_desc = "Variable HNO4 output from
> RT-MAQSIP " ;
> float O1D(TSTEP, LAY, ROW, COL) ;
> O1D:long_name = "O1D " ;
> O1D:units = "PPMV " ;
> O1D:var_desc = "Variable O1D output from RT-MAQSIP
> " ;
> float O3P(TSTEP, LAY, ROW, COL) ;
> O3P:long_name = "O3P " ;
> O3P:units = "PPMV " ;
> O3P:var_desc = "Variable O3P output from RT-MAQSIP
> " ;
> float HO(TSTEP, LAY, ROW, COL) ;
> HO:long_name = "HO " ;
> HO:units = "PPMV " ;
> HO:var_desc = "Variable HO output from RT-MAQSIP
> " ;
> float O3(TSTEP, LAY, ROW, COL) ;
> O3:long_name = "O3 " ;
> O3:units = "PPMV " ;
> O3:var_desc = "Variable O3 output from RT-MAQSIP
> " ;
> float HO2(TSTEP, LAY, ROW, COL) ;
> HO2:long_name = "HO2 " ;
> HO2:units = "PPMV " ;
> HO2:var_desc = "Variable HO2 output from RT-MAQSIP
> " ;
> float H2O2(TSTEP, LAY, ROW, COL) ;
> H2O2:long_name = "H2O2 " ;
> H2O2:units = "PPMV " ;
> H2O2:var_desc = "Variable H2O2 output from
> RT-MAQSIP " ;
> float CO(TSTEP, LAY, ROW, COL) ;
> CO:long_name = "CO " ;
> CO:units = "PPMV " ;
> CO:var_desc = "Variable CO output from RT-MAQSIP
> " ;
> float FORM(TSTEP, LAY, ROW, COL) ;
> FORM:long_name = "FORM " ;
> FORM:units = "PPMV " ;
> FORM:var_desc = "Variable FORM output from
> RT-MAQSIP " ;
> float ALD2(TSTEP, LAY, ROW, COL) ;
> ALD2:long_name = "ALD2 " ;
> ALD2:units = "PPMV " ;
> ALD2:var_desc = "Variable ALD2 output from
> RT-MAQSIP " ;
> float C2O3(TSTEP, LAY, ROW, COL) ;
> C2O3:long_name = "C2O3 " ;
> C2O3:units = "PPMV " ;
> C2O3:var_desc = "Variable C2O3 output from
> RT-MAQSIP " ;
> float PAN(TSTEP, LAY, ROW, COL) ;
> PAN:long_name = "PAN " ;
> PAN:units = "PPMV " ;
> PAN:var_desc = "Variable PAN output from RT-MAQSIP
> " ;
> float PAR(TSTEP, LAY, ROW, COL) ;
> PAR:long_name = "PAR " ;
> PAR:units = "PPMV " ;
> PAR:var_desc = "Variable PAR output from RT-MAQSIP
> " ;
> float ROR(TSTEP, LAY, ROW, COL) ;
> ROR:long_name = "ROR " ;
> ROR:units = "PPMV " ;
> ROR:var_desc = "Variable ROR output from RT-MAQSIP
> " ;
> float OLE(TSTEP, LAY, ROW, COL) ;
> OLE:long_name = "OLE " ;
> OLE:units = "PPMV " ;
> OLE:var_desc = "Variable OLE output from RT-MAQSIP
> " ;
> float ETH(TSTEP, LAY, ROW, COL) ;
> ETH:long_name = "ETH " ;
> ETH:units = "PPMV " ;
> ETH:var_desc = "Variable ETH output from RT-MAQSIP
> " ;
> float TOL(TSTEP, LAY, ROW, COL) ;
> TOL:long_name = "TOL " ;
> TOL:units = "PPMV " ;
> TOL:var_desc = "Variable TOL output from RT-MAQSIP
> " ;
> float CRES(TSTEP, LAY, ROW, COL) ;
> CRES:long_name = "CRES " ;
> CRES:units = "PPMV " ;
> CRES:var_desc = "Variable CRES output from
> RT-MAQSIP " ;
> float TO2(TSTEP, LAY, ROW, COL) ;
> TO2:long_name = "TO2 " ;
> TO2:units = "PPMV " ;
> TO2:var_desc = "Variable TO2 output from RT-MAQSIP
> " ;
> float CRO(TSTEP, LAY, ROW, COL) ;
> CRO:long_name = "CRO " ;
> CRO:units = "PPMV " ;
> CRO:var_desc = "Variable CRO output from RT-MAQSIP
> " ;
> float OPEN(TSTEP, LAY, ROW, COL) ;
> OPEN:long_name = "OPEN " ;
> OPEN:units = "PPMV " ;
> OPEN:var_desc = "Variable OPEN output from
> RT-MAQSIP " ;
> float XYL(TSTEP, LAY, ROW, COL) ;
> XYL:long_name = "XYL " ;
> XYL:units = "PPMV " ;
> XYL:var_desc = "Variable XYL output from RT-MAQSIP
> " ;
> float MGLY(TSTEP, LAY, ROW, COL) ;
> MGLY:long_name = "MGLY " ;
> MGLY:units = "PPMV " ;
> MGLY:var_desc = "Variable MGLY output from
> RT-MAQSIP " ;
> float ISOP(TSTEP, LAY, ROW, COL) ;
> ISOP:long_name = "ISOP " ;
> ISOP:units = "PPMV " ;
> ISOP:var_desc = "Variable ISOP output from
> RT-MAQSIP " ;
> float XO2(TSTEP, LAY, ROW, COL) ;
> XO2:long_name = "XO2 " ;
> XO2:units = "PPMV " ;
> XO2:var_desc = "Variable XO2 output from RT-MAQSIP
> " ;
> float XO2N(TSTEP, LAY, ROW, COL) ;
> XO2N:long_name = "XO2N " ;
> XO2N:units = "PPMV " ;
> XO2N:var_desc = "Variable XO2N output from
> RT-MAQSIP " ;
> float SO2(TSTEP, LAY, ROW, COL) ;
> SO2:long_name = "SO2 " ;
> SO2:units = "PPMV " ;
> SO2:var_desc = "Variable SO2 output from RT-MAQSIP
> " ;
> float SULF(TSTEP, LAY, ROW, COL) ;
> SULF:long_name = "SULF " ;
> SULF:units = "PPMV " ;
> SULF:var_desc = "Variable SULF output from
> RT-MAQSIP " ;
> float NH3(TSTEP, LAY, ROW, COL) ;
> NH3:long_name = "NH3 " ;
> NH3:units = "PPMV " ;
> NH3:var_desc = "Variable NH3 output from RT-MAQSIP
> " ;
> float CH4(TSTEP, LAY, ROW, COL) ;
> CH4:long_name = "CH4 " ;
> CH4:units = "PPMV " ;
> CH4:var_desc = "Variable CH4 output from RT-MAQSIP
> " ;
> float ISPD(TSTEP, LAY, ROW, COL) ;
> ISPD:long_name = "ISPD " ;
> ISPD:units = "PPMV " ;
> ISPD:var_desc = "Variable ISPD output from
> RT-MAQSIP " ;
>
> // global attributes:
> :IOAPI_VERSION = "1.0 1997349 (Dec. 15, 1997)" ;
> :EXEC_ID = "Coats: Private Testing
> " ;
> :FTYPE = 1 ;
> :CDATE = 1999225 ;
> :CTIME = 33021 ;
> :WDATE = 1999225 ;
> :WTIME = 33021 ;
> :SDATE = 1999224 ;
> :STIME = 0 ;
> :TSTEP = 10000 ;
> :NTHIK = 1 ;
> :NCOLS = 57 ;
> :NROWS = 47 ;
> :NLAYS = 30 ;
> :NVARS = 37 ;
> :GDTYP = 2 ;
> :P_ALP = 30. ;
> :P_BET = 60. ;
> :P_GAM = -95. ;
> :XCENT = -95. ;
> :YCENT = 39. ;
> :XORIG = -787500. ;
> :YORIG = -1552500. ;
> :XCELL = 45000. ;
> :YCELL = 45000. ;
> :VGTYP = 2 ;
> :VGTOP = 100.f ;
> :VGLVLS = 1.f, 0.9919998f, 0.9800002f, 0.9659999f, 0.9500001f,
> 0.934f, 0.918f, 0.9019999f, 0.8860001f, 0.8659999f, 0.8420001f, 0.814f,
> 0.78f, 0.7399999f, 0.6940001f, 0.6479999f, 0.6000001f, 0.5559999f,
> 0.5100001f, 0.4639999f, 0.418f, 0.372f, 0.326f, 0.282f, 0.24f, 0.198f,
> 0.156f, 0.114f, 0.074f, 0.036f, 0.f ;
> :GDNAM = "RTIME01T45_CRO " ;
> :UPNAM = "DRIVER " ;
> :VAR-LIST = "NO NO2 NO3
> N2O5 HONO HNO3 HNO4 O1D
> O3P HO O3 HO2 H2O2
> CO FORM ALD2 C2O3 PAN
> PAR ROR OLE ETH TOL
> CRES TO2 CRO OPEN XYL
> MGLY ISOP XO2 XO2N SO2
> SULF NH3 CH4 ISPD "
> ;
--------
Steve Emmerson <http://www.unidata.ucar.edu>
