main
test-branch
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Last change
on this file since 7d77e64 was ea777aa, checked in by Alex Wilton <awilton@…>, 3 years ago |
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Moved examples, include, build_default.properties, common.xml, and README out from dev.civl.com into the root of the repo.
git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@5704 fb995dde-84ed-4084-dfe6-e5aef3e2452c
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| 1 | Here is some notes for comparing two diffusion1d programs(one in parallel and one in sequential) from FEVS.
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| 2 |
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| 3 | Bugs of original MPI-C program( diffusion1d_par.c ):
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| 4 |
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| 5 | 1. Never try to free "u", which stores the final result, when quit by calling quit().
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| 6 |
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| 7 | 2. Never try to close the file, which provides input data, when quit by calling quit().
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| 8 |
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| 9 | 3. Malloc space to pointer "buf" inside the function "init()" twice without free the space
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| 10 | given by first time malloc.
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| 11 |
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| 12 | 4. Missing "fclose()" in function "init()".
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| 13 |
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| 14 | 5. Missing MPI_Finalize() when root process quits.
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| 15 |
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| 16 | 6. When root process call "quit()" before broadcasting parameters to
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| 17 | other process, other process will keep waiting for broadcasting forever.
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| 18 |
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| 19 | Defects of CIVL:
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| 20 |
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| 21 | 1. CIVL cannot automatically handle system file closing work when the program quit before
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| 22 | reaching the end.
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| 23 |
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| 24 | 2. When comparing 2 programs, CIVL cannot recognize the file both of 2 programs are reading
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| 25 | is same. Thus, CIVL will verify one path that one program quit because of failing on
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| 26 | reading file but the other doesn't fail on it.
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| 27 |
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| 28 | 3. "sprintf()" still not supported
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| 29 |
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| 30 | 4. CIVL pragma cannot support "if" statement.
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