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 |
| n-body | ± | 1/2 | ± | |
| spectral-norm | ± | ± | 1/2 | |
| fasta | 3× | 1/2 | ± | |
| fannkuch | 4× | 1/3 | 1/2 | |
| binary-trees | 8× | 1/3 | ± | |
| mandelbrot | 9× | ± | 1/2 | |
| reverse-complement | 12× | ± | 1/3 | |
| k-nucleotide | 32× | 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 |
|---|---|---|---|---|---|
| n-body | |||||
| Fortran Intel | 23.99 | 23.99 | 440 | 1389 | 0% 100% 0% 0% |
| C++ GNU g++ | 23.82 | 23.82 | 788 | 1428 | 100% 0% 0% 0% |
| spectral-norm | |||||
| Fortran Intel | 15.82 | 4.00 | 1,140 | 568 | 99% 99% 99% 99% |
| C++ GNU g++ | 11.98 | 3.00 | 1,032 | 1114 | 100% 100% 100% 100% |
| fasta | |||||
| Fortran Intel | 9.98 | 9.98 | 396 | 1155 | 0% 0% 0% 100% |
| C++ GNU g++ | 3.78 | 3.78 | 816 | 1470 | 99% 1% 0% 0% |
| fannkuch | |||||
| Fortran Intel | 52.26 | 52.26 | 408 | 521 | 0% 100% 0% 0% |
| C++ GNU g++ | 49.61 | 13.63 | 1,160 | 1186 | 81% 77% 100% 100% |
| binary-trees | |||||
| Fortran Intel | 48.06 | 48.06 | 65,936 | 826 | 0% 0% 0% 100% |
| C++ GNU g++ | 18.86 | 6.32 | 173,332 | 892 | 60% 74% 74% 71% |
| mandelbrot | |||||
| Fortran Intel | 56.84 | 56.84 | 32,392 | 485 | 0% 0% 0% 100% |
| C++ GNU g++ | 24.67 | 6.17 | 30,436 | 858 | 100% 100% 100% 100% |
| reverse-complement | |||||
| Fortran Intel | 11.26 | 11.26 | 166,568 | 772 | 0% 0% 0% 100% |
| C++ GNU g++ | 1.34 | 0.92 | 245,440 | 2275 | 68% 50% 14% 15% |
| k-nucleotide | |||||
| Fortran Intel | 137.67 | 137.66 | 205,660 | 2238 | 0% 0% 0% 100% |
| C++ GNU g++ | 14.80 | 4.31 | 132,452 | 3415 | 81% 80% 99% 84% |
| pidigits | |||||
| Fortran Intel | |||||
| chameneos-redux | |||||
| regex-dna | |||||
Measurements for all the accepted programs
Fortran Intel : pioneering numeric and scientific programming
Intel(R) Fortran Compiler for applications running on IA-32, Version 10.1 Build 20080801 Package ID: l_fc_p_10.1.018
Home Page: Non-Commercial Software Development