Difference between revisions of "Cs360-2008"
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| + | == Serial C code candidate for OpenMP incremental parallelization == | ||
| + | Link to prose, tarball: [http://www.techfinesse.com/game/sudoku_solver.php] | ||
| + | |||
| + | Why? Many for loops that look ripe for parallelization; lots of array traversing. | ||
| + | |||
== HPL Benchmarking Assignment == | == HPL Benchmarking Assignment == | ||
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{| border="1" | {| border="1" | ||
| − | |+ HPL, tarzan, 4x1 | + | |+ HPL, tarzan, 4x1, ATLAS |
! - !! LAM !! MPICH !! OpenMPI | ! - !! LAM !! MPICH !! OpenMPI | ||
|- | |- | ||
| Line 21: | Line 26: | ||
| '''''4:49.89''''' || '''''4:46.05''''' || '''''4:37.89''''' | | '''''4:49.89''''' || '''''4:46.05''''' || '''''4:37.89''''' | ||
|} | |} | ||
| − | |||
{| border="1" | {| border="1" | ||
Latest revision as of 07:22, 22 April 2008
Serial C code candidate for OpenMP incremental parallelization
Link to prose, tarball: [1]
Why? Many for loops that look ripe for parallelization; lots of array traversing.
HPL Benchmarking Assignment
- HPL.dat reference from NetLib - http://www.netlib.org/benchmark/hpl/tuning.html
- To get a time of 4+ mins on tarzan, change line 6 of the default ATLAS HPL.dat to: 600 700 800 900 Ns
| - | LAM | MPICH | OpenMPI |
|---|---|---|---|
| Run 1 | 4:50.67 | 4:46.91 | 4:35.06 |
| Run 2 | 4:48.69 | 4:46.25 | 4:40.36 |
| Run 3 | 4:50.32 | 4:45.00 | 4:38.26 |
| Avg | 4:49.89 | 4:46.05 | 4:37.89 |
| - | 2 procs | 4 procs |
|---|---|---|
| Run 1 | 68.320s | 67.336s |
| Run 2 | 67.027s | 76.995s |
| Run 3 | 66.053s | 67.117s |
| Avg | 67.133 | 70.483s |
| - | Atlas | Goto |
|---|---|---|
| Run 1 | 5m53.306s | 6m38.663s |
| Run 2 | 5m32.486s | 6m24.253s |
| Run 3 | 5m32.852s | 6m26.475s |
| Avg | 5m39.548s | 6m29.797 |
