Debian Linux GCC OPM Performance Compilers Testing Open Porous Media (OPM) performance on different GCC compiler releases under Debian stable and Debian testing. Benchmarks by Michael Larabel. Same system under all tests. Debian 8.4 - GCC 4.8.4: Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Haswell-E DMI2, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Intel Wellsburg HD Audio, Monitor: ASUS PB278, Network: Intel Connection OS: Debian 8.4, Kernel: 3.16.0-4-amd64 (x86_64), Desktop: GNOME Shell 3.14.4, Display Server: X Server 1.16.4, Display Driver: radeon 7.5.0, OpenGL: 3.3 Mesa 10.3.2 Gallium 0.4, Compiler: GCC 4.8.4, File-System: ext4, Screen Resolution: 2560x1440 Debian 8.4 - GCC 4.9.2: Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Haswell-E DMI2, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Intel Wellsburg HD Audio, Monitor: ASUS PB278, Network: Intel Connection OS: Debian 8.4, Kernel: 3.16.0-4-amd64 (x86_64), Desktop: GNOME Shell 3.14.4, Display Server: X Server 1.16.4, Display Driver: radeon 7.5.0, OpenGL: 3.3 Mesa 10.3.2 Gallium 0.4, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 2560x1440 Debian Testing - GCC 5.3.1: Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Debian testing, Kernel: 4.5.0-1-amd64 (x86_64), Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.1.3 Gallium 0.4, Compiler: GCC 5.3.1 20160409, File-System: ext4, Screen Resolution: 2560x1440 Debian Testing - GCC 6.1.0: Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Debian testing, Kernel: 4.5.0-1-amd64 (x86_64), Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.1.3 Gallium 0.4, Compiler: GCC 6.1.0, File-System: ext4, Screen Resolution: 2560x1440 Open Porous Media Git OPM Benchmark: Flow MPI Norne - Threads: 1 Seconds < Lower Is Better Debian 8.4 - GCC 4.8.4 ..... 1584.44 |========================================= Debian 8.4 - GCC 4.9.2 ..... 1573.00 |========================================= Debian Testing - GCC 5.3.1 . 1572.18 |========================================= Debian Testing - GCC 6.1.0 . 1516.35 |======================================= Open Porous Media Git OPM Benchmark: Flow MPI Norne - Threads: 2 Seconds < Lower Is Better Debian 8.4 - GCC 4.8.4 ..... 925.67 |========================================= Debian 8.4 - GCC 4.9.2 ..... 925.53 |========================================= Debian Testing - GCC 5.3.1 . 956.80 |========================================== Debian Testing - GCC 6.1.0 . 913.22 |======================================== Open Porous Media Git OPM Benchmark: Flow MPI Norne - Threads: 4 Seconds < Lower Is Better Debian 8.4 - GCC 4.8.4 ..... 725.19 |========================================== Debian 8.4 - GCC 4.9.2 ..... 675.05 |======================================= Debian Testing - GCC 5.3.1 . 650.87 |====================================== Debian Testing - GCC 6.1.0 . 651.32 |====================================== Open Porous Media Git OPM Benchmark: Flow MPI Norne - Threads: 8 Seconds < Lower Is Better Debian 8.4 - GCC 4.8.4 ..... 599.25 |========================================== Debian 8.4 - GCC 4.9.2 ..... 537.27 |====================================== Debian Testing - GCC 5.3.1 . 483.25 |================================== Debian Testing - GCC 6.1.0 . 481.49 |================================== Open Porous Media Git OPM Benchmark: Flow MPI Norne - Threads: 16 Seconds < Lower Is Better Debian 8.4 - GCC 4.8.4 ..... 527.67 |========================================== Debian 8.4 - GCC 4.9.2 ..... 527.83 |========================================== Debian Testing - GCC 5.3.1 . 503.54 |======================================== Debian Testing - GCC 6.1.0 . 497.62 |========================================