To use this product you should be familiar with the Fortran 90 language as well as the withdrawn Fortran 77 language, which is, in practice, a subset of Fortran 90. A summary of the ISO and ANSI standard language is found in Metcalf and Reid (1990). A more comprehensive illustration is given in Adams et al. (1992).
Those routines implemented in the IMSL Fortran Numerical Library provide a simpler, more reliable user interface than was possible with Fortran 77. Features of the IMSL Fortran Numerical Library include the use of descriptive names, short required argument lists, packaged user-interface blocks, a suite of testing and benchmark software, and a collection of examples. Source code is provided for the benchmark software and examples.
Some of the routines in the IMSL Fortran Numerical Library can take advantage of a standard (MPI) Message Passing Interface environment but do not require an MPI environment if the user chooses to not take advantage of MPI.
The MPI logo shown below cues the reader when this is the case:
Routines documented with the MPI Capable logo can be called in a scalar or one computer environment.
Other routines in the IMSL Library take advantage of MPI and require that an MPI environment be present in order to use them. The MPI Required logo shown below clues the reader when this is the case:
NOTE: It is recommended that users considering using the MPI capabilities of the product read the following sections of the MATH Library documentation:
Introduction: Using MPI Routines,
Introduction: Using ScaLAPACK Enhanced Routines,
Chapter 10, Linear Algebra Operators and Generic Functions – see Dense Matrix Parallelism Using MPI.
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