Introduction to IMSL and VNI

1
Introduction to IMSL and VNI

• Welcome to ITs seminar on Visual Numerics Inc
  (VNI) package
• Sam Gordji, ccsam_at_olemiss.edu
• Weir 107

2
List of Statistical Packages

• SPSS
• SAS
• Mathematica
• MathWorks (Matlab)
• VNI (IMSL, PV-WAVE)

3
General Information

• SAS performs statistical analysis
• SPSS performs statistical analysis and is similar
  to SAS
• Mathematicas main function is to perform
  mathematical operations including statistics
• MathWorks is similar to Mathematica and is
  available on willow and sweetgum

4
Statistical PackageSAS/PC (cont.)

• 50 copies are available for faculty use
• For each copy purchased, a faculty member can get
  a free copy (to be installed on a student PC)
• The cost is 100 per copy per year
• To obtain a copy of SAS please email
• ccsam_at_olemiss.edu
• assist_at_mcsr.olemiss.edu

5
List of Statistical Packages

• Mathematica
• Mathematica (free copy for faculty, staff, and
  students). To obtain a copy of Mathematica please
  visit
• http//www.mcsr.olemiss.edu/appssubpage.php?pagen
  amemathematica.inc

6
List of Statistical Packages

• Matlab
• Matlab (available on willow and sweetgum)
• VNI is the parent company of JMSL, IMSL, PV-WAVE
  etc.

7
List of VNI Packages

• IMSL
• IMSL for Fortran is a comprehensive package
  containing Math, stat., and special functions
• IMSL for C is a comprehensive package
  containing Math, stat., and special functions
• IMSL is available only on sweetgum
• IMSL is a set of subroutines called by a Fortran,
  c or a Java program

8
General Information

• Email contact
• Email your questions to assist_at_mcsr.olemiss.edu
• To download this and other materials visit
• http//www.mcsr.olemiss.edu/educationsubpage.php?
  pagenamesepcamp08.inc
• Please fill out the performance report and leave
  your email address so we may contact you for
  follow up questions

9
General Information

• This seminar covers IMSL and Fortran
• Well look at a few short IMSL examples

10
General Information

• IT staff will assist users to access these
  packages. We also assist users to find the proper
  procedure to analyze their data. If you need
  assistance please send an email to Sam Gordji at
  ccsam_at_olemiss.edu,
• assist_at_mcsr.olemiss.edu , or
• mathadm_at_olemiss.edu

11
Accessing Fortran on willow and on sweetgum

• Willow and sweetgum are Unix server housed in the
  data center building
• Willows operating system is Sun Solaris (Solaris
  10)
• Willow and sweetgum are the primarily used by
  researchers that have large number crunching
  programs
• Limited knowledge of Unix system is needed to run
  Fortran and IMSL

12
Accessing Fortran on Willow

• Fortran on willow may be accessed from the
  network.
• Steps to access willow from a Windows PC
• Request a willow account from the IT Helpdesk.
• Download/Install SSH Secure Shell Client from
  http//www.mcsr.olemiss.edu/appssubpage.php?pagena
  messh2.inc
• Click Secure Shell Client

13
Accessing Fortran on Willow (Cont.)

• Click Quick Connect

14
Accessing Fortran on Willow (Cont.)

• For this workshop, everyone can login as student
• Fill in Host Name and User Name as above
• Click Connect

15
A Few Useful Unix Commands

• cat --- for displaying a file
• cd --- change directory
• cd 1--- to move to sub-directory 1 so on
• cp --- for copying files
• ls --- see what files you have
• pwd --- find out what directory you are in
• rm --- remove a file
• pico --- a Unix editor
• sas --- to activate and run SAS programs
• To attend a Unix seminar, please contact
  assist_at_mcsr.olemiss.edu

16
Running Fortran on Willow and sweetgum

• Willow is ready to execute Fortran jobs
• cd to the numbered directory assigned to you,
  e.g. cd 5
• pwd to print working directory
• ls to list files in working directory
• To view a program, enter
• cat file-name.f
• To launch a SAS program, enter
• f77 file-name.f

17
Accessing Fortran on Willow

• To run a Fortran job on willow or sweetgum enter
  
• F77 my.f, where my.f is the name of your
  Fortran program
• To obtain an account for willow contact Helpdesk
  at 915-5222

18
Topics of the Day

• Creating a simple Fortran Program
• Running a few Fortran Program with and without
  IMSL (nonlin.f,eign.f, test.f, newton.f)
• Looking at some aspects of Fortran IMSL
• Download Fortran programs form sweetgum
  /usr/local/apple/examples

19
Running Fortran on sweetgum

• To create executable on sweetgum enter
• f90 F90FLAGS -o nonlin nonlin.f LINK_F90
• To run an script called "nonlin", simply enter
• nonlin
• Please note that the executable in this case is
  called "nonlin"

20
JMSL

• JMSL Numerical Library is the collections of
  Mathematical, statistical and financial routines
• Combines the power of IMSL and uses Java
• Link below explains IMSL Libraries ( Math, Stat.
  and Special Functions)
• http//www.vni.com/products/imsl/jmsl/jmsl.php