Description

The IMSL libraries are a comprehensive set of mathematical and statistical functions that programmers can embed into their software applications. IMSL provides high-performance computing software and expertise needed to develop and execute sophisticated numerical analysis applications. These libraries free you from developing your own internal code by providing pre-written mathematical and statistical algorithms that you can embed into your Fortran applications.

Version

6.0

How to Use

The IMSL libraries are installed on Helix using 64-bit Portland Group Compilers. Compiled programs can be run on the Biowulf cluster, but they must be statically linked against the IMSL libraries, as the libraries are not accessible to the cluster nodes.

Here is a very simple Fortran 90 program named test.f90 with a call to the IMSL function TDATE (remember to indent!):

      INTEGER IDAY, IYEAR, MONTH
      EXTERNAL TDATE
      CALL TDATE(IDAY, MONTH, IYEAR)
      WRITE(*,*)'Day-Month-Year = ', IDAY, '-', MONTH, '-', IYEAR
      END

The IMSL Fortran libraries are built for use with the Portland Group Compilers, so environment variables must be set up for both PGI and IMSL:

bash shell:

source /usr/local/pgi/pgivars.sh
source /local/bin/fnlsetup.sh

csh/tcsh shell:

source /usr/local/pgi/pgivars.csh
source /local/bin/fnlsetup.csh

Last, compile test.f90:

$F90 -o test $F90FLAGS test.f90 $LINK_F90

There are several sets of options for the compiler and library links:

VARIABLE	SYNONYMS	USE
$F90	$FC	pgf90
$MPIF90		mpif90
$F90FLAGS	$FFLAGS	default set of options for compilation
$LINK_F90	$LINK_F90_SHARED $LINK_FNL $LINK_FNL_SHARED	default set of options for linking
$LINK_F90_HPC	$LINK_F90_SHARED_HPC	uses external high-performance BLAS and LAPACK libraries
$LINK_F90_STATIC		statically links libraries, allows executable to be run on the 64-bit Biowulf cluster nodes
$LINK_F90_STATIC_HPC		combines $LINK_F90_STATIC and $LINK_F90_HPC
$LINK_MPI		statically links libraries and uses parallel IMSL error handler, allows compilation in an MPI environment ($MPIF90 required instead of $F90)
$LINK_MPI_HPC		combines $LINK_MPI and $LINK_F90_HPC
$LINK_MPIS		see the gruesome README file below
$LINK_MPIS_HPC		see the gruesome README file below

To compile using MPI, you must add the correct MPI path to your $PATH variable. See Here for more information about using MPI on Helix Systems.

There are a set of example programs in /local/IMSL_6.0_RHL/imsl/fnl600/rdhpg714x64/examples on Helix. The environment variable $FNL_EXAMPLES also points to this directory.

Documentation

Visual Numerics

gruesome README file for the very desperate

Math.pdf

SFUN.pdf

Stat.pdf

donlp2doc.pdf

imsl.pdf