Zapp

2 definitions found

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

  ZAPP
       Zero Assignment Parallel Processor
       
       

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:



  ZAPP
       
          Zero Assignment Parallel Processor.  A virtual tree machine
          architecture in which a process tree is dynamically mapped
          onto a fixed, strongly connected network of processors
          communicating by message passing.  The basic operation of each
          node is to apply a divide and conquer function which takes
          four arguments: (1) a function 'primitive' which takes a
          problem description (PD) and returns true if it can be solved
          without division, (2) a function 'solve' which takes a
          primitive PD and returns its solution, (3) a function 'divide'
          which takes a PD and returns a list of PDs of smaller problems
          and (4) a function 'combine' which returns the solution to a
          problem by combining a list of solutions of subproblems.
       
          Each node has a copy of the code and one is given the initial
          problem description.  Task distribution is by process stealing
          in which a process constructs a descriptor for each subtask
          and idle (lightly loaded) processors can steal a descriptor
          from a physically connected neighbour.