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This chart shows 3 comparisons - Time-used, Memory-used and Code-used ~ speed and size.
Each chart bar shows, for one unidentified benchmark, how much the fastest Fortran Intel program used compared to the fastest C++ GNU g++ program.
Look at speed another way - look at a box plot of Time-used data.
This table shows 3 comparisons - Time-used, Memory-used and Code-used ~ speed and size.
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 | |
| fasta | 1/2 | ± | ± | |
| mandelbrot | 1/2 | ± | ± | |
| n-body | ± | ± | ± | |
| spectral-norm | ± | 3× | 1/2 | |
| binary-trees | ± | 1/2 | ± | |
| pidigits | ± | ± | ± | |
| fannkuch-redux | ± | 7× | ± | |
| reverse-complement | 2× | 1/2 | 1/2 | |
| k-nucleotide | 9× | ± | 1/2 | |
| Fortran Intel used what fraction? used how many times more? | |||||||
|---|---|---|---|---|---|---|---|
| Time-used | |- | |--- | 25% | median | 75% | ---| | -| |
| (Elapsed secs) | 1/2 | 1/2 | ± | ± | ± | ± | 9× |
± read the measurements and then read the program source code.
This table shows 5 measurements - CPU Time, Elapsed Time, Memory, Code and ≈ CPU Load ~ speed and size.
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 |
|---|---|---|---|---|---|
| fasta | |||||
| Fortran Intel | 2.72 | 2.72 | 248 | 1327 | 0% 0% 1% 100% |
| C++ GNU g++ | 6.16 | 6.17 | 356 | 1266 | 0% 100% 0% 0% |
| mandelbrot | |||||
| Fortran Intel | 14.24 | 3.61 | 29,172 | 967 | 99% 99% 99% 99% |
| C++ GNU g++ | 24.31 | 6.11 | 32,296 | 1017 | 100% 100% 100% 100% |
| n-body | |||||
| Fortran Intel | 14.09 | 14.09 | 508 | 1172 | 0% 0% 0% 100% |
| C++ GNU g++ | 19.30 | 19.31 | 428 | 1659 | 0% 100% 0% 0% |
| spectral-norm | |||||
| Fortran Intel | 7.91 | 2.00 | 1,300 | 638 | 99% 100% 99% 99% |
| C++ GNU g++ | 10.02 | 2.52 | 504 | 1044 | 100% 100% 100% 100% |
| binary-trees | |||||
| Fortran Intel | 22.25 | 7.34 | 182,180 | 1199 | 95% 76% 69% 66% |
| C++ GNU g++ | 27.33 | 8.93 | 360,432 | 892 | 64% 87% 62% 96% |
| pidigits | |||||
| Fortran Intel | 1.91 | 1.92 | 1,512 | 975 | 0% 0% 100% 1% |
| C++ GNU g++ | 2.29 | 2.30 | 1,644 | 682 | 0% 0% 0% 100% |
| fannkuch-redux | |||||
| Fortran Intel | 50.06 | 12.64 | 8,512 | 1148 | 99% 99% 99% 99% |
| C++ GNU g++ | 50.35 | 12.87 | 1,240 | 1440 | 100% 94% 100% 98% |
| reverse-complement | |||||
| Fortran Intel | 1.26 | 1.27 | 152,504 | 1013 | 0% 100% 3% 2% |
| C++ GNU g++ | 1.06 | 0.68 | 245,712 | 2275 | 54% 50% 18% 37% |
| k-nucleotide | |||||
| Fortran Intel | 65.38 | 26.22 | 191,500 | 2079 | 71% 35% 100% 45% |
| C++ GNU g++ | 10.32 | 2.97 | 139,016 | 3415 | 84% 99% 85% 82% |
| fasta-redux | |||||
| C++ GNU g++ | 0.02 | 0.03 | ? | 1474 | 0% 100% 0% 0% |
| regex-dna | |||||
| C++ GNU g++ | 0.06 | 0.06 | ? | 695 | 14% 60% 40% 0% |
Remember - those are just the fastest Fortran Intel and C++ GNU g++ programs measured on this OS/machine. Check if there are other implementations of these benchmark programs for Fortran Intel.
Maybe one of those other Fortran Intel programs is fastest on a different OS/machine.
Remember - those are just the fastest Fortran Intel and C++ GNU g++ programs measured on this OS/machine. Check if there are faster implementations of these benchmark programs for other programming languages.
Maybe one of those other programs is fastest on a different OS/machine.
Intel(R) Fortran Intel(R) 64 Compiler XE for applications running on Intel(R) 64, Version 12.1 Build 20111128
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