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Data Parallel typified by CMFortran and its generalization - High Performance Fortran which we have discussed separately
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| 2 |
Typical Data Parallel Fortran Statements are full array statements
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B=A1 + A2
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B=EOSHIFT(A,-1)
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Function operations on arrays representing full data domain
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| 3 |
Message Passing typified by later discussion of Laplace Example which specifies specific machine actions i.e. send a message between nodes whereas data parallel model is at higher level as it (tries) to specify a problem feature
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| 4 |
Note: We are always using "data parallelism" at problem level whether software is "message passing" or "data parallel"
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| 5 |
Data parallel software is translated by a compiler into "machine language" which is typically message passing
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