Note: The following are general examples. There may be several versions of the IMSL libraries present on the systems. It is generally best to use the newest version. However, older versions are retained for compatibility. Generic script names may not yet reference the most recent release. For example on the IBM SP in /usr/local/bin there are the following scripts:
> ls /usr/local/bin/imsl*
/usr/local/bin/imsl30.csh /usr/local/bin/imsl77.sh
/usr/local/bin/imsl30.ksh /usr/local/bin/imsl90.csh
/usr/local/bin/imsl3f90.csh /usr/local/bin/imsl90.sh
/usr/local/bin/imsl3f90.ksh /usr/local/bin/imslc.csh
/usr/local/bin/imsl4f90.csh /usr/local/bin/imslc.ksh
/usr/local/bin/imsl4f90.ksh /usr/local/bin/imslc25.csh
/usr/local/bin/imsl77.csh /usr/local/bin/imslc25.ksh

For Fortran 90 programs, imsl4f90 would be the best choice.

To compile F77 fixed-source code with the 4.01 F90 IMSL setup, make sure to add "-qfixed" after $(IMSL4F90).

The International Mathematical and Statistical Library [IMSL] for Fortran 90 has been installed on the STARRS/SP (IBM) and SCAAMP (SGI) systems. The Fortran 77 versions remain available.

Before compiling, linking and running a Fortran program under IMSL, several environment variables must be defined. These are different for Fortran 77 and Fortran 90; you must reconfigure, if you decide to use first one and then the other.

To define the environment variables, C shell users must give the following command:

source /usr/local/bin/imsl77.csh #if you wish to use Fortran 77

or

source /usr/local/bin/imsl90.csh #if you wish to use Fortran 90

Bourne shell users must give the following command:

. /usr/local/bin/imsl77.sh #if you wish to use Fortran 77

or

. /usr/local/bin/imsl90.sh #if you wish to use Fortran 90

Note: to make this work on Lakshmi you must first give the command:

sh

[you don't have to do this on Uma or the STARRS].

Compiling, Linking and Running

To compile and link a program using IMSL on the STARRS, enter:

xlf -o prog $IMSL prog.f #if you wish to use Fortran 77

or

xlf90 -o prog $IMSL prog.f #if you wish to use Fortran 90

Replace "prog.f" with the name of your Fortran command file. The compiled and linked version of the program will be called "prog". The environment variable $IMSL is defined in the files discussed above.

On the SCAAMP systems, to compile your program enter one of the following commands, after setting the environment variables as discussed above:

f90 prog.f -o prog $F90FLAGS $LINK_F90 f77 prog.f -o prog $FFLAGS_MP $LINK_FNL_MP

For more information about IMSL, see the IU IMSL web page.

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Linking with libraries and linker information