Chapel versus Intel Fortran fastest programs Always look at the source code. These are only the fastest programs. Do some of them use manually vectorized SIMD? Look at the other programs. They may seem more-like a fair comparison to you. reverse-complement source secs mem gz busy cpu load Chapel 1.65 1,882,564 755 3.51 96% 38% 38% 41% Intel Fortran 3.90 985,352 1019 4.11 1% 100% 4% 1% fasta source secs mem gz busy cpu load Chapel 0.93 5,252 1391 3.36 100% 87% 88% 87% Intel Fortran 2.06 12 1351 2.06 0% 0% 0% 100% fannkuch-redux source secs mem gz busy cpu load Chapel 9.35 4,288 731 37.30 100% 100% 100% 100% Intel Fortran 10.16 11,048 1158 40.55 100% 100% 100% 100% pidigits source secs mem gz busy cpu load Chapel 0.75 6,516 512 0.75 99% 1% 0% 0% Intel Fortran 0.74 4,004 981 0.75 0% 0% 100% 1% n-body source secs mem gz busy cpu load Chapel 6.79 5,388 971 7.09 100% 1% 0% 3% Intel Fortran 4.22 12 1524 4.34 100% 1% 1% 2% spectral-norm source secs mem gz busy cpu load Chapel 1.46 5,204 310 5.80 99% 99% 99% 99% Intel Fortran 0.72 1,776 638 2.85 100% 100% 99% 99% mandelbrot source secs mem gz busy cpu load Chapel 3.32 36,104 588 13.13 99% 98% 99% 99% Intel Fortran 1.42 36,184 957 5.63 99% 100% 99% 99% binary-trees source secs mem gz busy cpu load Chapel 7.86 298,696 488 24.18 100% 57% 77% 74% Intel Fortran 2.38 133,752 1148 7.45 100% 70% 70% 73% regex-redux source secs mem gz busy cpu load Chapel 4.29 486,708 493 6.81 99% 21% 21% 17% Intel Fortran 0.99 176,200 2225 3.06 68% 73% 71% 98% k-nucleotide source secs mem gz busy cpu load Chapel 10.43 177,052 996 38.90 100% 90% 91% 92% Intel Fortran Make Error Chapel chpl version 1.23.0 Copyright 2020 Hewlett Packard Enterprise Development LP Copyright (c) 2004-2019, Cray Inc. Intel Fortran Intel(R) Fortran Intel(R) 64 Compiler for applications runn304 Build 20200925_0ing on Intel(R) 64, Version 19.1.3.304 Build 20200925_000000 Copyright (C) 1985-2020 Intel Corporation. All rights reserved. FOR NON-COMMERCIAL USE ONLY all Chapel programs & measurements all Intel Fortran programs & measurements