SIMINDEX: A FORTRAN 77 program for converting sort data into similarity matrices

Experience converting a large Fortran-77 program to C++

RESOLVE is a widely used program for statistical density modification, local pattern matching, automated model-building, automated ligand-fitting, and prime-and-switch minimum bias phasing (Terwilliger 2000, Terwilliger 2003). In recent years it has been developed primarily in the context of PHENIX, which is a rapidly growing software suite for the automated determination of macromolecular stru...

Fortran 77 Program Message P . Program ADAPTOR CM Fortran Program SIMD MIMD CMAX

A Translation of a Fortran Program into a Fortress Program

This report shows a strategy for program translation from Fortran to Fortress, and points out some issues about the translation, through an example translation of a practical Fortran program into a Fortress program, which implements the BiCGSTAB method.

Derivatives By-Address for Fortran 77

FIXME Automatic differentiation tools use 1 of 2 strategies to access derivative values. These strategies are: 1. By-address 2. By-name The by-address method is typically implemented by introducing structured types for each active scalar type. For example, scalar type ’real’ will have an associated structure type ’active-real’. Using this strategy, all active variables types are changed to the ...

Fortran 77 Subroutines for Computing the Eigenvalues of Hamiltonian Matrices I: the Square Reduced Method

This paper describes LAPACK-based Fortran 77 subroutines for the reduction of a Hamiltonian matrix to square-reduced form and the approximation of all its eigenvalues using the implicit version of Van Loan's method. The transformation of the Hamiltonian matrix to a square-reduced form transforms a Hamiltonian eigenvalue problem of order 2n to a Hessenberg eigenvalue problem of order n. The eige...