  OpenVMS VAX to OpenVMS Alpha migration (take IV)? 
 The Question is:
 
We have a Microvax cluster of 3100 model 90's and our software (we are told)
 will not run on Alpha,s. Is it possible to bring our existing software across
 to an Alpha cluster and it run without any modifications to the software? Could
you explain "porting"? It has been suggested to us that porting would be a
 solution.
 
Look forward to hearing from you and thankyou in anticipation.
 
Roy
 
 The Answer is:
 
  OpenVMS VAX and OpenVMS Alpha platforms have a high-level of source code
  compatibility, but these platforms have different object and executable
  code.  In other words, you can generally rebuild (recompile and relink)
  correctly-written OpenVMS VAX application code for use on OpenVMS Alpha
  but you cannot transfer over and use VAX binaries on an Alpha system.
 
  Relevent OpenVMS manuals include:
 
    http://www.openvms.compaq.com:8000/72final/6459/6459PRO.HTML
    http://www.openvms.compaq.com:8000/72final/6466/6466pro.html
    http://www.openvms.compaq.com:8000/72final/5601/5601pro.html
 
  Other topics of interest here in Ask The Wizard include: 44, 131, 2055,
  2091, 3036, 4061, and 4673.
 
