WELCOME to the PRACTICAL EXERCISES - CLM-Community

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The Makefile • You have to set the following variables • LIBPATHpath where the library is written to • INCDIR • AR • FTN • FCFLAGS • F90FLAGS • CC • CCFLAGS path for the include directory archiving utility (usually ar, but sxar for NEC cross-compiler) Call to the Fortran compiler (choose SX-8) Fortran compiler flags Fortran 90 compiler flags Call to the C-compiler C compiler flags • Save the changes, close the text-editor and type: make 07.-11.02.2011 COSMO-CLM Training 2011 14
Big Endian / Little Endian • Most (Unix) supercomputers today use big-endian processors. This means that the most significant (biggest) byte is stored first. • Typical PC (Intel) Processors (with Linux) do it the other way round and store the less significant (smallest) byte first. This is called little endian. • Grib, by definition, is big-endian! • Example: every Grib record starts with 4 bytes, that contain the 4 ASCII signs: G R I B – Representation in big endian: G R I B – Representation in little endian: B I R G • On little endian machines, a byte-swapping has to be done when reading Grib-files. This is implemented in the Grib library and can be switched on by defining –D__linux__ 07.-11.02.2011 COSMO-CLM Training 2011 15
Page 1 and 2: WELCOME to the PRACTICAL EXERCISES
Page 3 and 4: • To do the practical exercises,
Page 5 and 6: Logging in • To the PC - There is
Page 7 and 8: The Computers at DWD • The batch
Page 9 and 10: Files and Data • You should copy
Page 11 and 12: Installing the GRIB1 Library
Page 13: The Directory Structure • tar xvf
Page 17 and 18: Installing the INT2LM
Page 19 and 20: Makefile / Fopts In LOCAL are sever
Page 21 and 22: The Directory Structure • tar xvf
Page 23 and 24: Runscripts • Runscripts take over
Page 25 and 26: Runscript for COSMO • In the refe
Page 27 and 28: Up to now • Now you know how to m
Page 29 and 30: Choosing a domain • You first nee
Page 31 and 32: Choosing a domain • The domain is
Page 33 and 34: About Runscripts • About run-scri
Page 35 and 36: Up to now • When working with the
Page 37 and 38: The Grid Analysis and Display Syste
Page 39 and 40: Some Caveats • Definition of zdef
Page 41 and 42: Helpful Tools • grib2ctl: produce
Page 43 and 44: Troubleshooting • The run-scripts
Page 45 and 46: int2lmrun_2 • Undefined GME value
Page 47 and 48: uneu2de • Error in cuegin • Thi
Page 49 and 50: un_cosmo_test_2 • T_SO missing?

WELCOME to the PRACTICAL EXERCISES - CLM-Community

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