Compiler Tests 2 x Intel Xeon Silver 4114 testing with a Dell 0RGP26 (2.4.8 BIOS) and Matrox G200eW3 on CentOS Linux 7 via the Phoronix Test Suite. ICC -march=skylake-avx512 -O3: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: ICC + GCC 8.3.0, File-System: xfs, Screen Resolution: 1280x1024 GCC 8.3 -march=skylake-avx512 -O3: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: GCC 8.3.0 + ICC, File-System: xfs, Screen Resolution: 1280x1024 GCC 7.4 -march=skylake-avx512 -O3: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: GCC 7.4.0 + ICC, File-System: xfs, Screen Resolution: 1280x1024 ICC + GCC 7.4 -march=skylake-avx512 -O3: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: ICC + GCC 7.4.0, File-System: xfs, Screen Resolution: 1280x1024 GCC 8.3 w/o ICC -march=skylake-avx512 -O3: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: GCC 8.3.0, File-System: xfs, Screen Resolution: 1280x1024 GCC 8.3 w/o ICC -O3: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: GCC 8.3.0, File-System: xfs, Screen Resolution: 1280x1024 GCC 8.3 w/o ICC -O3 -mtune=skylake-avx512: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: GCC 8.3.0, File-System: xfs, Screen Resolution: 1280x1024 GCC 8.3 w/o ICC -O3 -march=skylake: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: GCC 8.3.0, File-System: xfs, Screen Resolution: 1280x1024 ICC -O3 -march=skylake: Processor: 2 x Intel Xeon Silver 4114 @ 3.00GHz (20 Cores / 40 Threads), Motherboard: Dell 0RGP26 (2.4.8 BIOS), Chipset: Intel Sky Lake-E DMI3 Registers, Memory: 8 x 16384 MB DDR4-2666MT/s M393A2K43CB2-CTD, Disk: 250GB PERC H730P Mini, Graphics: Matrox G200eW3, Monitor: HP V190, Network: 2 x Broadcom NetXtreme BCM5720 2-port PCIe + 2 x Broadcom BCM57412 NetXtreme-E 10Gb RDMA OS: CentOS Linux 7, Kernel: 3.10.0-1062.12.1.el7.x86_64 (x86_64), Compiler: ICC + GCC 8.3.0, File-System: xfs, Screen Resolution: 1280x1024 LAMMPS Molecular Dynamics Simulator 9Jan2020 Model: Rhodopsin Protein ns/day > Higher Is Better ICC -march=skylake-avx512 -O3 ............. 9.306 |============================ GCC 8.3 -march=skylake-avx512 -O3 ......... 9.337 |============================ GCC 7.4 -march=skylake-avx512 -O3 ......... 7.888 |======================== ICC + GCC 7.4 -march=skylake-avx512 -O3 ... 7.927 |======================== GCC 8.3 w/o ICC -march=skylake-avx512 -O3 . 9.367 |============================ GCC 8.3 w/o ICC -O3 ....................... 8.728 |========================== GCC 8.3 w/o ICC -O3 -mtune=skylake-avx512 . 8.490 |========================= GCC 8.3 w/o ICC -O3 -march=skylake ........ 9.208 |============================