June 2, 1997 NCALC - Version: 2.6 1995/03/30 Verification of Manning's Roughness Coefficient in Channels For assistance, enhancement requests, or bug reports contact the Hydrologic Analysis Software Support Team via email at h2osoft@usgs.gov. See the file doc/ncalc.txt for descriptions, references, and additional contacts for this software. Instructions for installation, execution, and testing are provided below. TABLE OF CONTENTS A. FILES B. EXTRACTING FILES C. COMPILING D. INSTALLING E. RUNNING THE SOFTWARE F. TESTING A. FILES The following distribution packages (containing the software, test data sets, and information files) are currently available for UNIX systems: ncalc_2.6.DGUX.tar.gz - Compiled for Data General AViiON under DG/UX 5.4 ncalc_2.6.Solaris.tar.gz - Compiled for Sun UltraSPARC 2 under Solaris 2.5 ncalc_2.6.source.tar.gz - Source code For use on Data General workstations, the program source code consists of the following files (found in the ncalc_2.6/src directory): ncalc.f xsect.f cncalc.f opnfil.f calc.f errprt.f opfile.f sys_dgux.f sys_lf90.f sys_sun.f sys_sgi.f sys_ms.f sys_lah.f sys_prim.f Makefile -- input instructions to the UNIX "make" utility for compiling NCALC B. EXTRACTING FILES The compressed tar file, named ncalc_2.6.OS.tar.gz, contains all the files needed to install and test NCALC on a computer with a particular operating system, where OS is a string indicating the operating system the distribution is intended for. If a version is not available for your operating system, the file ncalc_2.6.source.tar.gz contains the source code and all other files needed to compile, install, and test the software on a UNIX-based computer. For either type of distribution, the directory ncalc_2.6 is created (or overwritten) when the files are extracted from the tar file. If the ncalc_2.6 directory already exists, you may want to delete or rename it before extracting the files. The following are the steps to extract the files from a distribution tar file. 1. If the tar file is not already in the directory under which you want the distribution installed, move it there. For example: mv ncalc_2.6.____.tar.gz /usr/opt/wrdapp 2. If you are not in the directory where the tar file is located, go there. For example: cd /usr/opt/wrdapp 3. Uncompress the distribution file. For example: gunzip ncalc_2.6.____.tar.gz 4. Extract the distribution files from the tar file. For example: tar -xof ncalc_2.6.___.tar This creates the following directory structure (the contents of each directory are shown to the right): ncalc_2.6 ; copy of this README file `-----bin ; compiled executable `-----doc ; documentation files `-----src ; Makefile and source code `-----test ; scripts to run verification tests `-----data ; standard data sets used in verification tests Notes: a) The bin directory is not included in the ncalc_2.6.source.tar.gz distribution (it is created during compilation). b) Source code is included only with the ncalc_2.6.source.tar.gz distribution. c) It is recommended that no user files be kept in the ncalc_2.6 directory structure. If you do plan to put files in the ncalc_2.6 directory structure, do so only by creating subdirectories of ncalc_2.6. C. COMPILING If a compiled version of the software is not available for your computer, or if you want to build the executable yourself, follow the instructions in this section. If you have retrieved a pre-compiled distribution of the software, skip to the Installing section below. The source code is provided in the ncalc_2.6.source.tar.gz distribution so that users can generate the executable themselves. No support can be provided for users generating their own versions of the software. In general, the requirements are a Fortran compiler and a minimal level of knowledge of the compiler and the UNIX operating system. As provided, the Makefile and source code are set up for use on Data General AViiON workstations running the DG/UX operating system. To generate a new executable, do the following: 1. Change directory to the source directory: cd ncalc_2.6/src 2. Modify the beginning of the file named Makefile to correctly specify system-dependent variables: F77 Fortran compiler name FFLAGS Fortran compiler flags OS Operating system name 3. Provide a file syssubs.xx.f, where xx is the string that the operating system variable (OS) is set to in the Makefile. Versions of syssubs.f are included for Data General, Silicon Graphics, and Sun workstations. The syssubs.f file contains subroutines that query the computer for the current date and time. 4. Use the make program to initiate compilation of the source code and installation of the software: make [BINDIR=directory_for_links] See the Installing instructions below for an explanation of BINDIR. The make will: a. create the directories ncalc_2.6/bin and BINDIR if they do not already exist, b. compile the source code, c. place the executable (ncalc) in ncalc_2.6/bin, and d. place a link to the executable in BINDIR if specified. D. INSTALLING To make the executable (ncalc) easy to use, it should be installed in a directory included in the user's search path. The Makefile (input instructions to the UNIX make program--located in ncalc_2.6/src) contains instructions to optionally place a link in a specified directory to the executable contained in ncalc_2.6/bin. Use the following two commands to do this: cd ncalc_2.6/src make install [BINDIR=directory_for_links] If BINDIR is specified, a link to the executable is placed in the specified directory. For example, if your search path consists of: /usr/bin:/usr/opt/bin:/usr/local/bin use the command: make install BINDIR=/usr/local/bin to make the executable accessible from any directory without requiring the full pathname of the software's location. Notes: a) Brackets "[xxx]" are used to indicate optional arguments to commands. b) To create and delete a link to the NCALC executable file, the installer must have sufficient rights in the directory that BINDIR is set to. E. RUNNING THE SOFTWARE After NCALC is properly installed in a directory that is included in your PATH, the program is initiated using the command: ncalc. NCALC prompts for the input file name (default name=ncalc.inp) and then for the output file name (default name based on input file name). F. TESTING Test data sets are provided to verify that the program is correctly installed and running on the system. The tests may also be looked at as examples of how to use the program. The directory ncalc_2.6/test contains the scripts to run the tests. The directory ncalc_2.6/data contains the input data and expected results for each test. Tests are usually run in the directory ncalc_2.6/test, but they can be run in any user directory if the installation procedure was completed (make install performed). Run the tests using any of the commands in the table below. To test the installation, change to the ncalc_2.6/test directory and type the command: ./test.sh [m [n]] If running from another directory, specify the full path to the script; for example: /usr/opt/wrdapp/ncalc_2.6/test/test.sh [m [n]] where: m = the number of the first test to perform, default=1 n = the number of the last test to perform, default=4 For example: command what happens ------------------ ------------------------------------ ./test.sh runs all of the tests ./test.sh n runs test 'n' through the last test ./test.sh n m runs test 'n' through 'm' After the tests are completed, the results are compared to the expected results. If all goes well, the only differences will be due to different processing times or pathnames. To clean up after the tests, type the command: ./clean.sh NOTE: the standard data sets were created on a Data General AViiON workstation. You may notice slight numeric differences in the results on other computers. These are generally due to different round-off algorithms and the different architecture of the central processing unit chip. The tests are described in the table below. Test is the test number, program is the program used to run the test, and the usage column indicates how a file is used, with i for input, o for output, and i/o for both input and output. test program description of test and files file name & usage ---- ------- --------------------------------- ----------------- 1 ncalc Compute Manning's roughness for three cross sections with water-surface slope computations for: White River above Coal Creek near Meeker NCALC input data test01.inp i Program output test01.out o 2 ncalc Compute Manning's roughness for three cross sections without water- surface slope computations for: Crystal River above Avalanche Creek, near Redstone, Co. NCALC input data test02.inp i Program output test02.out o 3 ncalc Compute Manning's roughness for three cross sections without water- surface slope computations for: Eagle River at Gypsum NCALC input data test03.inp i Program output test03.out o 4 ncalc Compute Manning's roughness for four cross sections without water- surface slope computations for: Roaring Fork at Glenwood Springs, Co. NCALC input data test04.inp i Program output test04.out o * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Good Luck! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *