barrier synchronization

yschen@ee.ntu.edu.tw (Yeong-Sheng Chen)
Wed, 16 Nov 1994 04:18:05 GMT

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barrier synchronization yschen@ee.ntu.edu.tw (1994-11-16)
Re: barrier synchronization newburn@aslan.ece.cmu.edu (1994-11-18)
Re: barrier synchronization rrogers@cs.washington.edu (1994-11-18)
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Newsgroups: comp.compilers
From: yschen@ee.ntu.edu.tw (Yeong-Sheng Chen)
Keywords: parallel, question
Organization: National Taiwan University
Date: Wed, 16 Nov 1994 04:18:05 GMT

Hi everybody,


        Does anyone know that which machine (or what kind of architecture)
can efficiently execute the following codes with barrier synchronizations.
(For example, machines with VLIW architecture, or others?)


        DoAll 200 I=1,N
              DoSequential 100 J=1,M
                loop body;
    100 Continue
              Barrier;
  200 Continue


          That is, the scenario of execution may look like:


        * * * * * * * * * * * * * * * * * * * * (start)
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | |
        --------------------------------------- (Barrier)
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | | | | | | | |
        | | | | | | | | | | | | | |
        --------------------------------------- (Barrier)
                                              .
                                              .
                                              .
                                              .
                                              .
                                              .




        Thanks!


----------------------------------------------------------------------------
Eric Y.S. Chen Email: yschen@cs.ee.ntu.edu.tw
Computer System Lab. Tel: 886-2-3635251 ext 351
Department of Electrical Engineering. FAX: 886-2-3638247
National Taiwan University, Taipei 106, Taiwan
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