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Intel Paragon
| This data set was obtained on the
smaller Paragon at Sandia National Laboratory as an interactive job. This
machine has a total of 64 nodes, with the compute nodes running the SUNMOS/PUMA
operating system. All nodes have at least 16MB of DRAM, so this problem
should fit (not much paging). Wall-clock time was used in place of "tused" to compute the number of zone-cycles per second because the UNIX etime routine, which returns CPU time, requires some missing system library modules. All routines were compiled with: sif77 -c -O4
GRID: 32 x 32 x 32 per processor(tile) (4 Steps)
Speedup/
Processors Wall Clock tused(s) Zone-Cycles/sec MFLOPS C90s Speedup Processor
1 23.76 ? 5517 4.61 0.05 1.00 1.00
2 23.83 ? 10996 9.19 0.09 2.00 1.00
3 24.31 ? 16170 13.52 0.14 2.93 0.98
4 23.88 ? 21946 18.35 0.18 3.98 0.99
6 24.33 ? 32313 27.01 0.27 5.86 0.98
8 23.89 ? 43875 36.68 0.37 7.95 0.99
9 25.01 ? 47152 39.42 0.39 8.55 0.95
12 24.33 ? 64634 54.03 0.54 11.72 0.98
Another test run in interactive mode:
GRID: 32 x 32 x 32 per processor(tile) (4 Steps)
Speedup/
Processors Wall Clock tused(s) Zone-Cycles/sec MFLOPS C90s Speedup Processor
1 23.76 23.31 5517 4.61 0.05 1.00 1.00
8 23.89 23.45 43865 36.67 0.37 7.95 0.99
27 25.69 24.62 137708 115.12 1.15 24.96 0.92
64 24.31 23.72 344767 288.23 2.88 62.49 0.98
125 27.41 25.81 597431 499.45 4.99 108.29 0.87
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The Computational Astrophysics Data Analysis Center