JTpack90 Attributes

• Full embrace of F90 support for object-based programming:
  • all routines encapsulated in modules
  • derived types for each coefficient storage format
  • overloading of intrinsics (e.g. MatMul)
  • generic procedures
• Support for parallelism via PGSLIB (Robert Ferrell's Portable Gather / Scatter Library)
• Extensible infrastructure that facilitates implementation of:
  • new storage formats
  • new methods
  • new preconditioners
• Matrix-free options provide additional support for:
  • custom preconditioning
  • custom storage formats for coefficient matrix
  • situations where constructing coefficient is undesireable, difficult or impossible
• GUI (Tcl/Tk)