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nesl

nesl

 

  1  definition  found 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  NESL 
 
    A  parallel  language  loosely  based  on  {ML}, 
  developed  at  {Carnegie  Mellon  University}  by  the  {SCandAL} 
  project.  NESL  integrates  parallel  {algorithms},  {functional 
  languages}  and  implementation  techniques  from  the  system's 
  community. 
 
  Nested  {data  parallelism}  offers  concise  code  that  is  easy  to 
  understand  and  debug  and  suits  irregular  data  structures  such 
  as  {trees},  {graphs}  or  {sparse  matrices}. 
 
  NESL's  language  based  performance  model  is  a  formal  way  to 
  calculate  the  work"  and  depth"  of  a  program.  These  measures 
  can  be  related  to  running  time  on  a  {parallel  computer}. 
 
  NESL  was  designed  to  make  parallel  programming  easy  and 
  portable.  Algorithms  are  typically  more  concise  in  NESL  than 
  in  most  other  parallel  programming  languages  and  the  code 
  resembles  high-level  {pseudocode}.  This  places  more 
  responsibility  on  the  {compiler}  and  {run-time  system}  for 
  achieving  good  efficiency. 
 
  NESL  currently  runs  on  {Unix}  {workstations},  the  {IBM  SP-2}, 
  the  {Thinking  Machines}  {CM5},  the  {Cray}  {C90}  and  {J90},  the 
  {MasPar}  {MP2},  and  the  {Intel}  {Paragon}.  Work  is  underway 
  (April  1997)  on  a  portable  {MPI}  {back  end},  and  an 
  implementation  for  {symmetric  multiprocessors},  such  as  the 
  {SGI}  {Power  Challenge}  or  the  {DEC}  {AlphaServer}. 
 
  Latest  version:  Release  3.1,  as  of  1995-11-01. 
 
  {Home 
  (http://www.cs.cmu.edu/afs/cs.cmu.edu/project/scandal/public/www/nesl.html)}. 
 
  ["NESL:  A  Nested  Data-Parallel  Language",  Guy  Blelloch 
  CMU-CS-93-129,  April  1993]. 
 
  (1997-04-13)