File: READ.ME EXAMS Exposure Analysis Modeling System Version 2.97.5 U.S. EPA Release, June 1997 Center for Exposure Assessment Modeling (CEAM) National Exposure Research Lab - Ecosystems Research Division Office of Research and Development (ORD) U.S. Environmental Protection Agency (U.S. EPA) 960 College Station Road Athens, Georgia 30605-2700 706/355-8400 _________________________________________________________________ CONTENTS Introduction Abstract Documentation Distribution File Name and Content Development System Routine Execution Run Time and Performance Minimum File Configuration Modification Technical Help Contact Disclaimer _________________________________________________________________ INTRODUCTION EXAMS, first published in 1982 (epa-600/3-82-023), provides interactive computer software for formulating aquatic ecosystem models and rapidly evaluating the fate, transport, and exposure concentrations of synthetic organic chemicals--pesticides, industrial materials, and leachates from disposal sites. Exams contains an integrated Database Management System (dbms) specifically designed for storage and management of project databases required by the software. User interaction is provided by a full-featured Command Line Interface (cli), context-sensitive help menus, an on-line data dictionary and cli users' guide, and plotting capabilities for review of output data. Exams provides 20 output tables that document the input datasets and provide integrated results summaries for aid in ecological risk assessments. For a list of modifications to the EXAMS model system since its last release (version 2.96, March 1996), refer to the contents of files RELEASE.TXT and UPDATE.TXT (refer to FILE NAME AND CONTENT section). NOTE: For convenience, the terms "EXAMS model system", "EXAMS", and "EXAMSII" will be used in this document to refer to the EXAMS model and all associated support files and programs as a single unit. Therefore, the terms "EXAMS", "EXAMSII", and "EXAMS model system" are synonymous for purposes of this document only. _________________________________________________________________ ABSTRACT Refer to file ABSTRACT.TXT for an abstract of the EXAMS model system (refer to FILE NAME AND CONTENT section). _________________________________________________________________ DOCUMENTATION It is recommended that the user obtain and reference the documents listed below to operate and apply the EXAMS model system. Copies of the following documents are included on the distribution diskette and within the Internet distribution file INSTALEX.EXE. Refer to FILE NAME AND CONTENT and MINIMUM FILE CONFIGURATION sections for further information. Document Name(s) File Name(s) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~ EXAMS model system general execution and READ.ME user support guide EXAMS Model System Release Notes RELEASE.TXT EXAMS Model System Update Notes UPDATE.TXT (Enhancements/updates/additions not covered in user manual file) EXAMS Model System Abstract ABSTRACT.TXT CEAM Software Product User Response Form RESPONSE.TXT EXAMS Documentation and User's Manual EXAMS.WPD "EXPOSURE ANALYSIS MODELING SYSTEM EXAMS.TXT (EXAMS II), User's Guide for Version EXAMS.ASC 2.97" NOTE: The files READ.ME and those ending in .TXT are ANSI text (non-binary) files that can be displayed on the monitor screen by using the DOS TYPE command (e.g., TYPE READ.ME) or printed using the DOS PRINT command (e.g., PRINT READ.ME). File names with a file name extension of .WPD are WordPerfect (binary) document files that can only be viewed and/or printed within WordPerfect version 5.1 or greater. File names with a file name extension of .ASC are ASCII text (non-binary) document files in generic word processor format. These documents should be retained by the requester for reference. _________________________________________________________________ DISTRIBUTION NOTE: k=1,024; m=1,048,576; b=1 byte Included is 1, 3.5 inch (1.44mb, DS/HD) DOS (Disk Operating System) formatted diskette containing the Exposure Analysis Modeling System (EXAMS, Version 2.97.5), U.S. EPA release, dated June 1997. This model system is designed for the IBM PC family of microcomputer or compatible systems running under version 5.00 or higher of the Microsoft or PC Disk Operating Systems (PC or MS DOS--refer to DEVELOPMENT SYSTEM section). Properly configured, this model system and its support files and programs can be executed under PC/MS DOS 5.00 and later versions, or DOS 6.x; a DOS window or a DOS level system start up (i.e., boot) under Microsoft Windows 3.1x, Microsoft Windows for WorkGroups, Windows 95, or NT operating systems. To install the EXAMS model system and/or related support files and programs on a hard disk, insert the distribution diskette in a compatible diskette drive. Type A:\INSTALL or B:\INSTALL at the DOS system prompt and press the key. Then follow instructions and respond to the prompts presented on the monitor screen by the interactive installation program. This is a compressed, self-extracting, interactive installation program-- with on-line, context sensitive help--that contains the EXAMS model system (EXAMS, Version 2.97.5), dated June 1997. NOTE: If the EXAMS model system is being installed from the EXAMS installation file (INSTALEX.EXE) down loaded from the Internet, then the user should type INSTALEX at the DOS system prompt and press the key. This command assumes that the current default drive and sub-directory is the same drive and sub-directory that contain the file INSTALEX.EXE. For further information and to access CEAM software products through the Internet, refer to the TECHNICAL HELP CONTACT section. NOTE: The content of the distribution diskette can be copied to another "backup" diskette using the DOS DISKCOPY command. Refer to the DOS Reference Manual or on-line help for command application and use. The "backup" diskette must be the same size and storage density as the original source diskette. The following FILE NAME AND CONTENT section provides a brief functional description of each file by name or file name extension type. Other sections in this document contain information about o system development tools used to build the microcomputer release of the EXAMS model system o recommended hardware and software configuration for the execution of the model system and all support programs o program execution o sample run time o minimum file configuration o program modification o technical support _________________________________________________________________ FILE NAME AND CONTENT The self-extracting, interactive, installation executable program file exists in a compressed format to save disk space and file transfer time. This document contains a description of each file that can be decompressed from the compressed distribution diskette and/or file. Follow the instructions shown on the interactive installation program screens and menus to install, decompress (extract), and restore file(s) to their original name and size in order to place the EXAMS model system in a usable format on a hard or virtual disk. For comparison purposes, the original date and time of creation are also restored with each file. NOTE: Execution of the INSTALL or INSTALEX command can extract one or more EXAMS model system files. These files are automatically stored into DOS sub-directories on the hard disk. The hard disk and sub-directory structure, under which the sub-directories shown below are stored, is selected (e.g., C:\EXAMS) by the user during execution of the INSTALL or INSTALEX program. The string "InstallationDirectory" will be used to denote the highest level default installation directory structure chosen by the user during execution of INSTALL or INSTALEX. Below the installation directory, all files are grouped and listed by the appropriate DOS sub-directory name into which they will be automatically stored. ** Sub-directory InstallationDirectory\README: NOTE: The following files are ASCII text (non-binary) files that can be displayed on the monitor screen with the DOS TYPE command or printed using the DOS PRINT command. READ.ME - EXAMS model system execution and general support guide. RELEASE.TXT - Summary of corrections and/or changes between release versions. UPDATE.TXT - Summary of enhancements, updates, and additions not covered in the current user's manual. ABSTRACT.TXT - EXAMS Model System Abstract. RESPONSE.TXT - CEAM Software Product User Response Form. ** Sub-directory InstallationDirectory\DOCUMENT NOTE: The files described within this section are NOT required to execute and/or test any model, program, or associated run time support file as provided on the distribution diskette or the Internet installation file. For further information, refer to the MINIMUM FILE CONFIGURATION section. NOTE: The following files are the EXAMS user manual files. The complete documentation is contained within these files. These files should only be viewed and/or printed within the appropriate word processor, generic work processor, text editor, text viewer, or text print program/command. EXAMS.WPD - EXAMS Documentation and User's Manual "EXPOSURE EXAMS.TXT ANALYSIS MODELING SYSTEM (EXAMS II), User's Guide EXAMS.ASC for Version 2.97". The file EXAMS.TXT is an ANSI text (non-binary) file that can be displayed on the monitor screen by using the DOS TYPE command (e.g., TYPE READ.ME) or printed using the DOS PRINT command (e.g., PRINT READ.ME). The file EXAMS.WPD is a WordPerfect (binary) document file that can only be viewed and/or printed within WordPerfect version 5.1 or greater. The file EXAMS.ASC is an ASCII text (non-binary) document file in generic word processor format. ** Sub-directory InstallationDirectory: LF90.EER - Run time error message library file for Lahey FORTRAN (LF90) (refer to DEVELOPMENT SYSTEM section). This file is read automatically during execution of the EXAMS model system executable task image file (*.EXE) if an error is detected during execution. RETURN1.ANS - An empty file containing a single carriage return character used to provide an key or null response to an input prompt in selected DOS batch command files. EXAMOPEN.SCR - Initial welcome and CEAM information screen displayed before the execution of the EXAMS model via the DOS batch command file EXAMS.BAT. This is an ASCII text (non-binary) file that can be displayed on the monitor screen with the DOS TYPE command or printed using the DOS PRINT command. NOTE: To execute a DOS batch command file (*.BAT)--and hence a model or program spawned (i.e., executed) buy a given batch command file--from any sub-directory located on a hard or virtual disk drive, try adding the EXAMS installation sub-directory (e.g., C:\EXAMS) to the DOS search PATH and copy appropriate run time support files to the current default sub-directory. One way to accomplish this is to add or modify the PATH statement in the system start-up file, AUTOEXEC.BAT (located in the root directory on the start-up or boot drive). For example PATH C:\;C:\DOS;C:\UTIL;C:\WP51;C:\EXAMS; Refer to the DOS Reference Manual for PATH command and AUTOEXEC.BAT file application and use. EXAMS.BAT - DOS batch command file used to execute the EXAMS model. To execute, type EXAMS at the DOS system prompt, press the key, then follow the information screens and prompts displayed on the monitor screen. For further information, refer to the ROUTINE EXECUTION section. WARNING: The executable task image file XEXAMSX.EXE should only be executed using the corresponding DOS batch command file provided (EXAMS.BAT). XEXAMSX.EXE - Executable task image file for the EXAMS model. NOTE: EXAMS model input command and output listing files--with the exception of the EXAMS.DAF file, the KINOUT.PLT output file, and the SSOUT.PLT output file-- are ASCII (non-binary) text files that can be displayed on the monitor screen with the DOS TYPE command or printed using the DOS PRINT command. ASCII text files can be viewed or edited using any editor program that can read and save a file to disk in ASCII text (non- binary) format. NOTE: An input or output file name path specification and/or file name, as typed at a run time prompt or specified within an EXAMS "DO" input command file by the user, must be a unique and valid DOS path and/or file name. An input command and/or data file name must also be a valid EXAMS file name--either furnished with the distribution package or created, designated, and named by the user. A file name typed at a run time prompt or specified within an EXAMS "DO" command input file will be processed and executed in the run of the model. Remember, a DOS file name can be from 1 to 8 characters and can have an optional 1 to 3 character file name extension. NOTE: Refer to the explanation of the OUT_TEST\TESTOUT.XMS file for a procedure to compare the contents of an output file produced by the EXAMS model on the users system (REPORT.XMS) to output file TESTOUT.XMS as provided within the distribution package (OUT_TEST\TESTOUT.XMS). For a unique, user defined application and execution of the EXAMS model, the user must first create and enter the necessary input data into input data files. These files should only be created and/or modified using an editor program that can read and save a file to disk in ASCII text (non- binary) format. NOTE: For further explanation, information, and/or listings of example input and output data files, refer to the user's manual. EXAMSDAF.TPL - Unformatted, direct access data and help file. This file has space for 25 chemical data sets, 10 environmental data sets, 5 external chemical load series, and 5 product chemistries. This is a read-only template for the EXAMS.DAF file. It is protected via the DOS ATTRIB +R command and is used to create the file EXAMS.DAF during installation. This file can be used to create a new EXAMS.DAF file via the DOS COPY command. For example, type COPY EXAMSDAF.TPL EXAMS.DAF at the DOS system prompt then press the key. EXAMS.DAF - Unformatted, direct access data and help file read automatically by the EXAMS executable task image file (XEXAMSX.EXE). This file is the "working" copy of the EXAMSDAF.TPL file. TEST.EXA - Example input command file to test the installation and demonstrate application of the EXAMS model. This command file is also furnished to provide instruction by example and can be used as a template for the preparation of a new or modified input command file. To test the installation, execute the EXAMS model and use this file as the name of an EXAMS input command "DO" file. This sample input command file provides an example of input for selected sections and capabilities of the EXAMS model. For further information on executing EXAMS, refer to file EXAMS.BAT in this section or refer to the ROUTINE EXECUTION section. ** Sub-directory InstallationDirectory\OUT_TEST: NOTE: The symbol "" represents pressing the or carriage return key. Responses and key strokes that can be typed by the user are underlined with the hyphen character (-) and/or enclosed by the angle bracket characters (<>). NOTE: Unless specified as a "binary" file, EXAMS model output listing files are ASCII (non-binary) text files that can be displayed on the monitor screen with the DOS TYPE command or printed using the DOS PRINT command. ASCII text files can be viewed or edited using any editor program that can read and save a file to disk in ASCII text (non-binary) format. The following is a file produced by execution of the EXAMS model using the test input command file provided. To test the installation, execute the EXAMS model using the TEST.EXA command file provided with the distribution package. TESTOUT.XMS - EXAMS tabular output listing file produced by execution of the EXAMS model using the test input command file (TEST.EXA) provided with the distribution release. After executing the EXAMS model using the test input command file (TEST.EXA), compare the contents of the tabular output file produced (i.e., REPORT.XMS) with the corresponding output file provided and stored within the sub-directory OUT_TEST (i.e., TESTOUT.XMS). To compare file contents, use the COMP (PC DOS) or FC (MS DOS) file compare command, or print both files then compare contents by hand. For further information on executing the EXAMS model, refer to file EXAMS.BAT in this section or the ROUTINE EXECUTION section. Example EXAMS execution and file comparison sequence: Step Description/Action ~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1) Set the default drive to the disk containing the EXAMS model system sub-directory: A:\> C: -- 2) Change the DOS default sub-directory to the sub-directory designated by the user during the installation program as the installation sub-directory (e.g., EXAMS). Use the DOS CD (change directory) command at the DOS system prompt: C:\> CD \EXAMS --------- 3) Execute the EXAMS model with the test input command file provided: C:\EXAMS> EXAMS ----- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (Initial EXAMS banner/registration screen displayed here...press key to clear screen and continue model execution...) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (Next, the following screen is displayed while the EXAMS program is loaded into memory...) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # #----------------------------------------------------------------------# ## Executing EXAMS DOS command file. #----------------------------------------------------------------------# # # ## Loading EXAMS model task image file...wait. # #------------------------# ## EXAMS run beginning. #------------------------# # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (Screen cleared, then EXAMS version 2.97.5 run time initial information status screen and run-time prompt displayed here...) Welcome to EXAMS Release 2.97.5 Exposure Analysis Modeling System Technical Contact: Lawrence A. Burns, Ph.D. U.S. Environmental Protection Agency 960 College Station Road Athens, GA 30605-2700 USA Phone: (706) 355-8119 (Fax) 355-8104 Internet: burns.lawrence@epamail.epa.gov Latest Maintenance 13 June 1997 Type HELP and press the RETURN key for command names, HELP USER for a summary of command functions, HELP PAGES for a list of information pages, or HELP EXAMS for introductory information. Please stand by while EXAMS checks the computational precision of this computer and initializes the Activity Data Base. EXAMS-> DO TEST ------- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (EXAMS version 2.97.5 run time diagnostic, information status screens, messages, and run-time prompts displayed here while the model executes.) # ## EXAMS program execution complete. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (Compare the output file supplied that produced. For example:) C:\EXAMS> COMP OUT_TEST\TESTOUT.XMS REPORT.XMS ------------------------------------ or, C:\EXAMS> FC OUT_TEST\TESTOUT.XMS REPORT.XMS ---------------------------------- Special Run Time Files ** Sub-directory InstallationDirectory: NOTE: In addition to standard output files, the EXAMS model system also generates a special run time file that does not store scientific results. This file, as noted below and listed by file name (EXAMSRUN.LOG), can be cleaned up (i.e., deleted) at any time by the user. NOTE: The following file(s) are not distributed with the distribution release. They are either created and/or updated (appended to) automatically when the user executes the EXAMS model system DOS batch command file (EXAMS.BAT) to process data interactively or within a run time command file (e.g., TEST.EXA). These files will be stored in the sub-directory (e.g., \EXAMS) selected by the user during the installation of the EXAMS model system. EXAMSRUN.LOG - Run time log file that contains a beginning and ending date and time stamp for each execution of the EXAMS model. Refer to the ROUTINE EXECUTION section for further information. This file can be cleaned up (i.e., deleted) at any time by the user. REPORT.XMS - EXAMS tabular output file (non-binary, ASCII). KINOUT.PLT - EXAMS direct access (binary) output file used to plot results of dynamic simulations. SSOUT.PLT - EXAMS direct access (binary) output file used to plot steady-state results. FGETSEXP.XMS - FGETS exposure and command files (non-binary, FGETSCMD.XMS ASCII) produced by EXAMS. FORTRAN Source Code Files NOTE: FORTRAN source code files that build the U.S. EPA release of the EXAMS model system are not distributed. FORTRAN source code files (e.g., *.INC, *.FOR, etc.) and "make" command files (e.g., MAKEFILE) are NOT required to document, execute and/or test any model, program, or associated run time support file as provided on the distribution diskette or the Internet installation file. For further information, refer to the MINIMUM FILE CONFIGURATION section. EXAMS is a complex model system. The model source code relies on multiple interdependencies. Modification and recompilation of FORTRAN source code files should be attempted only by experienced research personnel with substantial expertise in exposure analysis modeling. Their application is mostly for additional research and development, including comparison to field or laboratory data, other theories, and further enhancements, such as graphical interfaces. THE SEPARATE USE OF THE FORTRAN PROGRAM EXAMS OUTSIDE THE EXAMS SHELL IS NOT RECOMMENDED BY THE U.S. EPA FOR ROUTINE APPLICATIONS OR ENVIRONMENTAL IMPACT STATEMENTS. A copy of the EXAMS model system FORTRAN source code files can be requested in writing under the Freedom of Information Act. Send a written request to Mr. Frank Stancil, CEAM Manager Center for Exposure Assessment Modeling (CEAM) National Exposure Research Laboratory - Ecosystems Research Division U.S. Environmental Protection Agency 960 College Station Road Athens, Georgia 30605-2700 Request must contain: o 1, 3.5 inch (1.44mb, DS/HD) DOS (Disk Operating System) formatted diskette o complete return address o justification for request including reason for code inspection and/or possible manipulation. _________________________________________________________________ DEVELOPMENT SYSTEM The following list describes the language and program development tools used by the U.S. EPA to build version 2.97.5 of the microcomputer implementation of the EXAMS model system. Also shown are the recommended minimum hardware and software configuration and the recommended \CONFIG.SYS configuration/environment file statements for the implementation and execution of this model system and all related support files and programs. Make sure that the IBM PC or compatible system has these statements in the \CONFIG.SYS file, and re-boot the system to implement these changes before attempting to install or use the EXAMS model system. Development System: Hardware System: Fully IBM compatible 80386, 80486, or 80586/Pentium Language: FORTRAN 90 Operating System: DOS version 5.00 or higher. Properly configured, this model system should also work on hardware platforms with PC DOS or MS DOS versions 5.0x, or 6.x., to include a DOS window or box, or boot under Windows 3.x, Windows for WorkGroups, Windows 95, and NT. DOS Extender: Phar Lap DOS Extender. Bound into application EXE file with automatic virtual memory management; distributed royalty free Compiler: Lahey FORTRAN 90 Overlay Structure: None - linked as flat memory model and program Storage Requirements: (k=1,024; m=1,048,576) Random Access Memory: (approximate minimum free bytes needed to execute EXE file for optimum performance within extended, not expanded, memory (i.e., XMS)) 640k base (low end) memory, plus 4.39m bytes of free extended (XMS) memory and 7.13m bytes of free disk space; or, 1m byte of free extended (XMS) memory and 11.5m bytes disk space (non-optimized). Diskette Drive: Required for installation only. Hard Disk Drive: 20m byte drive recommended (minimum) with 11.5m bytes free (minimum) Installation Size: Run Time: Approx. 7.13m bytes max. Run time size: After installation, up to approximately 10m bytes plus space for user input data or command files, output, and temporary files produced by model system (refer to MINIMUM FILE CONFIGURATION section). Numerical Coprocessor: Required. \CONFIG.SYS Statements: BREAK=ON BUFFERS=20 or BUFFERS=32 FILES=20 DEVICE=C:\ANSI.SYS DEVICE=extended memory manager - and - SHELL=C:\COMMAND.COM C:\ /e:512 /p Printer: For *.WPD file only, HP LaserJet III PostScript or compatible printer (minimum). Printer Software: For *.WPD file only, WordPerfect version 5.1 or greater. _________________________________________________________________ ROUTINE EXECUTION NOTE: The symbol "" represents pressing the or carriage return key. Responses and key strokes that can be typed by the user are underlined with the hyphen character (-) and/or enclosed by the angle bracket characters (<>). NOTE: It is possible that execution, not installation, of the EXAMS model system could be incompatible with MS DOS and Windows software cache files SMARTDRV.SYS or SMARTDRV.EXE loaded from the system configuration files \CONFIG.SYS and/or \AUTOEXEC.BAT on the boot drive. If any portion of the EXAMS model system prematurely halts, produces unusual results, and/or causes the host system to halt or hang, remove any SMARTDRV statements on the boot drive \CONFIG.SYS and/or \AUTOEXEC.BAT files, then re-boot the system to implement these changes before attempting to reuse any portion the EXAMS model system. Introduction ~~~~~~~~~~~~ Complete the installation process to make the full or any portion of the EXAMS model system and related files resident on a hard (usually designated as "C:") or virtual disk drive. Then modify the \CONFIG.SYS system environment file and restart the microcomputer system. This needs to be completed only once for a given installation and/or execution of the EXAMS model system. DOS Storage Path ~~~~~~~~~~~~~~~~ Verify that the EXAMS model system executable task image file (XEXAMSX.EXE), DOS batch command file (EXAMS.BAT), other run time support files, and user defined input data and/or command file(s) are in the current default DOS sub-directory. It is convenient but not required to have these files in the same sub-directory. NOTE: To execute a DOS batch command file (*.BAT)--and hence a model or program spawned (i.e., executed) buy a given batch command file--from any sub-directory located on a hard or virtual disk drive, add the EXAMS installation sub-directory (e.g., C:\EXAMS) to the DOS search PATH and copy other appropriate run time support files to the current default sub-directory. One way to accomplish this is to add or modify the PATH statement in the system start-up file, AUTOEXEC.BAT (located in the root directory on the start-up or boot drive). For example PATH C:\;C:\DOS;C:\UTIL;C:\WP51;C:\EXAMS If any portion of the EXAMS model system prematurely halts, produces unusual results, and/or causes the host system to halt or hang, copy all DOS batch and other run time support files from the EXAMS model system installation sub-directory to the current default sub- directory from where the EXAMS model system will be executed via the DOS search PATH statement. Refer to the DOS Reference Manual or on-line help for PATH command and AUTOEXEC.BAT file application and use. Routine Execution Steps ~~~~~~~~~~~~~~~~~~~~~~~ Step Description/Action ~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1) Set the default drive to the disk containing the EXAMS model system sub-directory. For example: A:\> C: -- 2) Change the DOS default sub-directory to the sub-directory designated by the user during the installation program as the installation sub-directory (e.g., EXAMS). Use the DOS CD (change directory) command at the DOS system prompt: C:\> CD \EXAMS --------- NOTE: A common problem is for a DOS executable or batch command file (*.EXE, *.BAT) to be unable to locate a file because it assumes the file is on the default drive and/or sub-directory when it is not. If input and/or other run time support file(s) are not on the default drive and sub-directory, the user can type a drive and/or path name ahead of the file name. For further information refer to the "File Name and Path Specifications" sub-section later in this document or the DOS Reference Manual. 3) To execute the EXAMS model, type: C:\EXAMS> EXAMS ----- After an opening banner/registration screen is displayed on the monitor, press the key to clear the screen and begin model execution. The prompt "EXAMS->" will appear on the monitor screen to prompt the user for information, data, commands, and/or a command file needed for this run of the model. At this prompt, the user can enter valid EXAMS program commands. See the User's Guide for EXAMS Version 2.97.5 for further information. NOTE: The EXAMS program uses logical unit number (LUN) seven (7), writing to device name "PRN", for its "print" command. Support for the print command option can be loaded into Random Access (low-end) Memory (RAM) prior to executing the program. To initialize and make the DOS PRINT command memory resident, type PRINT at the DOS system prompt, then press the key twice. This step needs to be executed only once for each warm () or cold (power off/on) start of the microcomputer system. NOTE: The EXAMS model system is a DOS, not a Windows or WindowsNT, application and should be executed from a DOS command line prompt. However, it can be installed and/or executed within a DOS box or window. When executing in a Windows DOS box or window, reset memory properties: 1) right click mouse on MS DOS icon, 2) click on Properties from menu bar, 3) select Memory tab, 4) select MS DOS protected-mode (DPMI) memory, 5) set DPMI memory value to 65535. NOTE: To execute the EXAMS model, the user may be required to first create and enter the necessary input data into input data and/or command files. These files should only be created and/or modified using an editor program that can read and save a file to disk in ASCII text (non-binary) format. Viewing Output Results ~~~~~~~~~~~~~~~~~~~~~~ After executing a EXAMS model system executable task image file, exiting EXAMS, and returning to the DOS prompt, the user can view an output file (e.g., *.OUT), if any, produced by the execution of a program or model if and only if that file is in ASCII text (non-binary) format. Results can be viewed by scrolling through the output file that was (1) a result of model or program execution and/or (2) named by the user at a run time prompt. A word processor or text editor is convenient for this purpose, or the command TYPE filename | MORE can be used where "filename" is the name of the output file. However, the TYPE command is awkward for a file that exceeds the 80-column screen width. Alternatively, the output file can be printed. A compressed print mode (132 column) should be used to avoid awkward--wrapped around--output from lines that exceed 80 columns. The DOS MODE command can be used for this purpose. For a parallel printer assigned to LPT1, the DOS command MODE LPT1: 132 will cause most printers to print in compressed mode. For further information, refer to the DOS Reference Manual. File Name and Path Specifications ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A file name, path specification, command, and/or parameter file name argument "filename" must be a unique and valid DOS path and/or file name. The user response "filename" must also be a valid EXAMS model system command, input, or output file name -- either furnished with the distribution package (refer to FILE NAME AND CONTENT section) or created, designated, and named by the user. A file name used as input data for a program or model in the EXAMS model system will be processed and executed in that run of the program or model. In general, file names used for input data, command, and/or output listing files (except for the test input and example output cases provided) are arbitrary, but must follow the rules for DOS file names. A file name should assist the user with identifying the contents or purpose of a file (e.g., INPUT.DAT, OUTPUT.LST). However the EXAMS model uses specific file names for input and output data (refer to explanation of files within the installation sub-directory) and a specific file name extension for all input and output files (e.g., *.OUT). NOTE: Any EXAMS model input "DO" command file name can have an optional 1 to 3 character file name extension. However, the file name extension ".EXA" is reserved for "DO" command files. If a file name extension other than ".EXA" is used for a "DO" command file, the extension must be entered with the file name at the EXAMS program prompt. Examples: EXAMS-> DO TEST (file name is actually TEST.EXA) EXAMS-> DO MYDATA.DAT A command file will be processed during the execution of the EXAMS program. Any DOS file name can be from 1 to 8 characters and can have an optional 0 to 3 character file name extension. Any characters beyond 8 in the file name or beyond 3 in the file name extension will be truncated and ignored by the DOS operating system. Refer to the DOS Reference Manual for further information on file names and disk file input/output procedures, rules, and commands. _________________________________________________________________ RUN TIME AND PERFORMANCE The following run time (approximate) was observed using the test input data and files furnished with the distribution version of the EXAMS model system. Remember that this time was obtained using test input data that may not be representative of a "real world" problem and/or data. The test data and files have been furnished for testing the installation of the EXAMS model system and for instruction by example. In general, the input test data is not intended to be representative of full scale model simulations. It was developed to test the installation of significant sections of model code. The run time listed in the table below was produced on a Microway 80486 B2T EISA class microcomputer running under MS DOS 6.0 and using 640k bytes of random access (low end) memory (RAM), 32 megabytes of extended memory, a 32 megabyte virtual (RAM) disk, Microp 1624-15 SCSI 765 megabyte DPT EISA hard disk with a 12K byte cache SCSI controller, a 256K byte memory cache, a 66 megahertz clock, a Number Smasher-860 40 megahertz, 32 megabyte math numerical coprocessor, and an ATI Ultra Graphics 1 megabyte video card. ** EXAMS Model System Test Run Input Command File Name Approx. Run Time (min:sec) ~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~ TEST.EXA 00:11 Program run time and performance can be affected by many microcomputer system and program parameters including o available disk space o available memory o processor/CPU classification o CONFIG.SYS and AUTOEXEC.BAT file options and parameter values o disk and/or file storage and/or fragmentation _________________________________________________________________ MINIMUM FILE CONFIGURATION The following list describes the absolute minimum file configuration needed within the application sub-directory to execute and/or test--not document--the EXAMS model and all support command files and programs. This list assumes that o the EXAMS model system and all support files and programs have been successfully installed from the distribution release o the user has defined and stored all application specific run time files NOTE: Files other than those listed below can be deleted if the user needs to recover disk space. ** Sub-directory InstallationDirectory\README: NOTE: The following files are ASCII text (non-binary) files that can be displayed on the monitor screen with the DOS TYPE command or printed using the DOS PRINT command. READ.ME - EXAMS model system execution and general support guide. RELEASE.TXT - Summary of corrections and/or changes between release versions. UPDATE.TXT - Summary of enhancements, updates, and additions not covered in the current user's manual. ABSTRACT.TXT - EXAMS Model System Abstract. RESPONSE.TXT - CEAM Software Product User Response Form. ** Sub-directory InstallationDirectory: LF90.EER - Run time error message library file for Lahey FORTRAN. RETURN1.ANS - An empty file containing a single carriage return character. EXAMOPEN.SCR - Initial welcome and CEAM information screen. EXAMS.BAT - DOS batch command file used to execute the EXAMS model. WARNING: The executable task image file XEXAMSX.EXE should only be executed using the corresponding DOS batch command file provided (EXAMS.BAT). XEXAMSX.EXE - Executable task image file for the EXAMS model. EXAMSDAF.TPL - Unformatted, direct access data and help file (template). EXAMS.DAF - Unformatted, direct access data and help file. TEST.EXA - Example input command file. ** Sub-directory InstallationDirectory\OUT_TEST: TESTOUT.XMS - EXAMS tabular output listing file. _________________________________________________________________ MODIFICATION Included with the distribution release are o executable task image file for the EXAMS model system A FORTRAN compiler and link editor are NOT required to execute any portion of the EXAMS model system. For further information concerning modification of code, refer to FORTRAN Source Code Files paragraph within the FILE NAME AND CONTENT section. The U.S. EPA CEAM cannot support, maintain, and/or be responsible for modifications that change the function of any executable task image file (*.EXE) or DOS batch command file (*.BAT) supplied with this model package. _________________________________________________________________ TECHNICAL HELP CONTACT NOTE: This section assumes that the user has successfully completed the installation process to make the full or any portion of the EXAMS model system and related files resident and fully operational on a hard (usually designated as "C:") or virtual disk drive. For further information on installation and execution, refer to the DISTRIBUTION DISKETTE and ROUTINE EXECUTION sections. For questions and/or information concerning o installation and/or testing of the EXAMS model system and/or support programs or files, call 706/355-8400 for assistance or send mail via Internet to ceam@epamail.epa.gov o EXAMS model and/or program content, application, and/or theory, contact Lawrence A. Burns, Ph.D., 706/355-8119, (Fax) 355-8104, Internet: burns.lawrence@epamail.epa.gov, or at the address shown below for assistance o use of the CEAM Internet node, or Listserver mailing list system, contact the Web Master at 706/355-8400 o CEAM software and distribution Quality Assurance and Control, call 706/355-8400 o other environmental software products and documentation distributed through CEAM, contact the Model Distribution Coordinator at 706/355-8400 o other support available through CEAM, contact Mr. Frank Stancil, U.S. EPA CEAM Manager - by mail at the following address Center for Exposure Assessment Modeling (CEAM) National Exposure Research Laboratory - Ecosystems Research Division U.S. Environmental Protection Agency (U.S. EPA) 960 College Station Road Athens, Georgia 30605-2700 - by telephone at 706/355-8328 - by fax at 706/355-8104 - by email or Internet at ceam@epamail.epa.gov To help technical staff provide better assistance, write down a response to the following topics before calling or writing. If calling, be at the computer, with the computer on, and in the proper sub-directory (e.g., C:\EXAMS) when the call is placed. o program information: - describe the problem, including the exact wording of any error and/or warning message(s) - list the exact steps, command(s), and/or keyboard key sequence that will reproduce the problem o machine information: - list computer brand and model - list available RAM (as reported by DOS CHKDSK or MEM command) - list extended memory present and free (XMS) - list name and version of extended memory (XMS) manager (i.e., HIMEM, VDISK, RAMDRIVE, etc.) - list available hard disk space (as reported by DOS CHKDSK command) - list the brand and version of DOS (as reported by DOS VER command) - list the name of any memory resident (TSR) program(s) installed - printer brand and model - monitor brand and model NOTE: If contacting CEAM by mail or fax, include responses to the above information within correspondence. CEAM operates a UNIX Listserver mailing list system. The name of the list is CEAM-USERS. Listserver is an automated mailing list system. A user can add him/her-self to a selected mailing list, post messages, and/or review/read messages. Lists can be moderated (owner decides which messages are made public) or un- moderated (all incoming messages are posted). Listserver is best suited for e-mail discussion groups. It is not a file service such as for the distribution of CEAM software products. This listserver broadcasts up-to-date information concerning CEAM software products, activities, and events. This includes announcements for CEAM and/or non-CEAM supported workshops and training sessions; software product version release, updates, and documentation information; hints on software installation, operation, application, problems, and/or enhancements; and the exchange of information quickly among users, and between users and CEAM support personnel. NOTE: The CEAM-USERS list is not moderated. To subscribe, execute a mail service to send the following information: NOTE: The symbol "" represents pressing the or carriage return key. Responses and key strokes that can be typed by the user are underlined with the hyphen character (-) and/or enclosed by the angle bracket characters (<>). mail listserver@unixmail.rtpnc.epa.gov -------------------------------------- Subject: (i.e., leave subject line blank) subscribe CEAM-USERS yourfirstname yourlastname ----------------------------------------------- The user can also check the status of this model system or any other CEAM software product through Internet node ftp.epa.gov or mountain.epa.gov The EXAMS model system and selected other CEAM software products for microcomputer and/or UNIX installation and application can be down loaded through the Internet from the above nodes via "anonymous" ftp (File Transfer Protocol) log in and file transfer commands and options. For further information on this Internet node and ftp, refer to document files USERINFO.TXT, QREF_WWW.TXT, QUICKREF.TXT, and LISTSERV.TXT that are included in the file INTERNET.ZIP that can be down loaded from the Internet node. To access CEAM software products via Internet, start the ftp program from the user's Internet node system (type 'ftp'), establish connection (type 'open ftp.epa.gov'), log onto public access server using anonymous account (type 'anonymous'). Respond to password prompt with users e-mail or Internet address. Then, upon log in completion, type 'cd epa_ceam', read CEAM Internet Welcome Screen, then type 'get CEAMNEWS.TXT -' to view latest news and list of CEAM software products available on the Internet. The same CEAM software products as mentioned above are also available through the World Wide Web (WWW). If the user has access to the World Wide Web through a web browser, selected CEAM software products, including EXAMS, can be accessed at the following Uniform Resource Locator (URL): http://www.epa.gov/CEAM _________________________________________________________________ DISCLAIMER Mention of trade names or use of commercial products does not constitute endorsement or recommendation for use by the United States Environmental Protection Agency. Execution of any portion of the EXAMS model system, and modification to the DOS system configuration files (i.e., \CONFIG.SYS and \AUTOEXEC.BAT) must be used and/or made at the user's own risk. Neither the U.S. EPA nor the program author(s) can assume responsibility for model and/or program modification, content, output, interpretation, or usage. The EXAMS program and files have been extensively tested and verified. However, as for all complex software products, the programs herein may not be completely free of errors and may not be applicable for all cases. In no event will the U.S. EPA be liable for direct, indirect, special, incidental, or consequential damages arising out of the use of the programs and/or associated documentation. CEAM software products are built using FORTRAN-77, FORTRAN-90, assembler, other third and forth generation symbolic reference languages, and operating system interface command languages. The code structure and logic of these products is designed for single-user, single-tasking, non-LAN environment and operating platform for microcomputer installations (i.e., single user on dedicated system). NOTE: FORTRAN source code files are NOT required to document, execute, and/or test any model, program, or associated run time support file as provided on the distribution diskette or the Internet installation file. EXAMS is a large-scale complex model system. The model source code relies on multiple interdependencies. Modification and recompilation of FORTRAN source code files should be attempted only by experienced research personnel with substantial expertise in FORTRAN development tools and the EXAMS modeling system. Their application is mostly for additional research and development, including comparison to field or laboratory data, other theories, and further enhancements, such as graphical interfaces. THE SEPARATE USE OF THE FORTRAN SOURCE CODE OUTSIDE THE EXAMS SHELL IS NOT RECOMMENDED BY THE U.S. EPA FOR ROUTINE APPLICATIONS OR ENVIRONMENTAL IMPACT STATEMENTS. A user will be on their own if he/she attempts to install a CEAM product on a multi-user, multi-tasking, and/or LAN based system (i.e., Windows, DESQview, any LAN). CEAM cannot provide installation, operation, and/or general user support under any combination of these configurations. Instructions and conditions for proper installation and testing are provided with the product in a READ.ME file. While multiuser/multitasking/LAN installations could work, none of the CEAM products have been thoroughly tested under all possible conditions. CEAM can provide selected and/or limited scientific and/or application support for selected products if the user proves that a given product is installed and working correctly using the test input data files provided with the distribution release. o WordPerfect is a registered trademark of WordPerfect Corporation o Microway and Number Smasher are registered trademarks of Microway, Inc. o Intel, 386, 486, and 860 are registered trademarks of Intel Corporation. o F77L is a registered trademark of Lahey Computer Systems, Inc. All other Lahey products are trademarks of Lahey Computer Systems, Inc. o IBM, Personal Computer/XT (PC/XT), Personal Computer/AT (PC/AT), PC DOS, VDISK, and Personal System/2 (PS/2) are registered trademarks of International Business Machines Corporation o PKZIP, PKUNZIP, and PKSFX are registered trademarks and/or trademarks of PKWARE, Incorporated. o DESQview is a trademark of Quarterdeck Office Systems, Inc. o Sun and SunOS are registered trademarks of Sun Microsystems, Inc. o SPARC is a registered trademark of SPARC International, Inc. o UNIX is a registered trademark of American Telephone and Telegraph o SVS FORTRAN-77 is a trademark of Silicon Valley Software o PRIME and PRIMOS are trademarks of Prime Computers, Inc. o Microsoft, RAMDRIVE, HIMEM, MS, and MS-DOS are registered trademarks of Microsoft Corporation o Windows, Windows95, WindowsNT are trademarks of Microsoft Corporation o RM/FORTRAN is a trademark of Language Processors, Inc. o DEC, VAX, VMS, and DCL are trademarks of Digital Equipment Corporation o US Robotics is a registered trademark and Courier HST is a trademark of U.S. Robotics, Inc. o VP-Expert is a registered trade mark of WordTech Systems, Inc. ######################### DWD/dwd - August 1998 - E:\EXAMS297\README\READ.ME