Fortran Intel programs versus C++ g++ by benchmark task performance spectral-norm source secs mem gz cpu cpu load Fortran Intel 1.98 2,944 638 7.88 100% 100% 100% 99% C++ g++ 2.02 1,332 1044 7.91 99% 99% 99% 99% n-body source secs mem gz cpu cpu load Fortran Intel 8.21 8 1524 8.21 0% 100% 1% 0% C++ g++ 8.23 1,856 1763 8.23 100% 1% 1% 0% fannkuch-redux source secs mem gz cpu cpu load Fortran Intel 12.93 10,848 1158 51.60 100% 100% 100% 100% C++ g++ 10.61 2,044 980 41.90 100% 96% 100% 100% fasta source secs mem gz cpu cpu load Fortran Intel 2.91 8 1351 2.90 100% 0% 1% 2% C++ g++ 1.35 1,952 2711 4.18 79% 78% 78% 79% binary-trees source secs mem gz cpu cpu load Fortran Intel 5.84 115,892 1148 17.30 63% 68% 66% 100% C++ g++ 2.55 135,568 809 7.99 85% 96% 69% 66% mandelbrot source secs mem gz cpu cpu load Fortran Intel 6.16 59,724 661 20.76 79% 80% 79% 100% C++ g++ 1.51 25,704 1791 5.99 99% 100% 100% 100% regex-redux source secs mem gz cpu cpu load No program contribute your program C++ g++ 0.02 ? 1315 0.06 100% 50% 67% 100% k-nucleotide source secs mem gz cpu cpu load Fortran Intel Failed C++ g++ 0.41 740 1276 0.73 30% 38% 93% 28% pidigits source secs mem gz cpu cpu load Fortran Intel Failed C++ g++ 0.07 ? 513 0.07 0% 0% 86% 13% reverse-complement source secs mem gz cpu cpu load Fortran Intel Make Error C++ g++ 0.03 ? 2280 0.04 100% 25% 33% 75% Fortran Intel Intel(R) Fortran Intel(R) 64 Compiler for applications running on Intel(R) 64, Version 18.0.0.128 Build 20170811 Copyright (C) 1985-2017 Intel Corporation. All rights reserved. FOR NON-COMMERCIAL USE ONLY C++ g++ g++ (Ubuntu 7.2.0-8ubuntu3) 7.2.0 vs C vs C++