Contents

• Introduction
• Description of routines used for multi-block transport
  • Routine issnddhs
  • Routine isrcddhs
  • Routine isrcddnd
  • Routine issnddnd
  • Routine ismblk
  • Routine isddbnd
  • Routine isddput
  • Routine isddget
  • Routine isddvput
  • Routine isddvget
  • Routine isddvlen
• Routines used for initializing the virtual coordinates
  • Routine isfilv
  • Routine istrco
  • Routine isexco
  • Routine iscoget
  • Routine iscoput
• Multi-block messages
  • Multi-block messages from host to node
  • Multi-block messages from node to host
• Description of relevant data structures
  • virt
  • itopol
  • smsg
    • Canonical form of a submessage
  • itrans
• Description of relevant common blocks
• About this document ...