Step 1 : Are the Fortran Intel programs faster? At a glance.
This chart shows 3 comparisons - Time-used, Memory-used and Code-used.
Each chart bar shows, for one unidentified benchmark, how much the fastest Fortran Intel program used compared to the fastest C++ GNU g++ program.
Step 2 : Are the Fortran Intel programs faster? Approximately.
This table shows 3 comparisons - Time-used, Memory-used and Code-used.
Each table row shows, for one named benchmark, how much the fastest Fortran Intel program used compared to the fastest C++ GNU g++ program.
| Fortran Intel used what fraction? used how many times more? | ||||
|---|---|---|---|---|
| Benchmark | Time | Memory | Code | Reduced N |
| fannkuch | ± | 1/3 | 1/2 | |
| n-body | ± | 1/2 | ± | |
| spectral-norm | ± | ± | 1/2 | |
| mandelbrot | 2× | 7× | ± | 4,000 |
| binary-trees | 3× | 1/2 | ± | |
| fasta | 4× | 1/2 | ± | |
| reverse-complement | 7× | ± | 1/3 | |
| k-nucleotide | 8× | 2× | 1/2 | |
± read the measurements and then read the program source code.
Step 3 : Are the Fortran Intel programs faster? Measurements.
This table shows 5 measurements - CPU Time, Elapsed Time, Memory, Code and ~ CPU Load.
For each named benchmark, measurements of the fastest Fortran Intel program are shown for comparison against measurements of the fastest C++ GNU g++ program.
| Program Source Code | CPU secs | Elapsed secs | Memory KB | Code B | ~ CPU Load |
|---|---|---|---|---|---|
| fannkuch | |||||
| Fortran Intel | 49.20 | 49.20 | 464 | 521 | 0% 0% 0% 100% |
| C++ GNU g++ | 50.34 | 50.34 | 1,260 | 1186 | 0% 0% 0% 100% |
| n-body | |||||
| Fortran Intel | 21.25 | 21.24 | 496 | 1389 | 0% 1% 0% 100% |
| C++ GNU g++ | 20.57 | 20.56 | 932 | 1428 | 0% 0% 0% 100% |
| spectral-norm | |||||
| Fortran Intel | 15.71 | 15.70 | 1,096 | 513 | 0% 0% 0% 100% |
| C++ GNU g++ | 11.90 | 11.89 | 1,156 | 1114 | 0% 0% 0% 100% |
| mandelbrot N = 4,000 reduced workload | |||||
| Fortran Intel | 3.37 | 3.36 | 16,104 | 813 | 0% 1% 0% 100% |
| C++ GNU g++ | 1.58 | 1.58 | 2,420 | 858 | 0% 0% 1% 100% |
| binary-trees | |||||
| Fortran Intel | 46.62 | 46.62 | 131,536 | 826 | 0% 0% 0% 100% |
| C++ GNU g++ | 16.52 | 16.51 | 296,208 | 892 | 0% 1% 0% 100% |
| fasta | |||||
| Fortran Intel | 8.51 | 8.50 | 488 | 1155 | 0% 0% 0% 100% |
| C++ GNU g++ | 2.26 | 2.26 | 964 | 1470 | 1% 1% 0% 100% |
| reverse-complement | |||||
| Fortran Intel | 6.98 | 6.98 | 188,376 | 772 | 0% 0% 0% 100% |
| C++ GNU g++ | 1.03 | 1.03 | 245,640 | 2275 | 1% 0% 1% 100% |
| k-nucleotide | |||||
| Fortran Intel | 86.91 | 86.90 | 229,908 | 2238 | 0% 0% 0% 100% |
| C++ GNU g++ | 11.41 | 11.41 | 142,264 | 3415 | 0% 0% 0% 100% |
| pidigits | |||||
| Fortran Intel | |||||
| chameneos-redux | |||||
| regex-dna | |||||
Measurements for all the accepted programs
Fortran Intel : pioneering numeric and scientific programming
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