chibi@1804:~$ cat \/etc\/os-release
\nNAME=”Ubuntu”
\nVERSION=”18.04.1 LTS (Bionic Beaver)”
\nID=ubuntu
\nID_LIKE=debian
\nPRETTY_NAME=”Ubuntu 18.04.1 LTS”
\nVERSION_ID=”18.04″
\nHOME_URL=”https:\/\/www.ubuntu.com\/”
\nSUPPORT_URL=”https:\/\/help.ubuntu.com\/”
\nBUG_REPORT_URL=”https:\/\/bugs.launchpad.net\/ubuntu\/”
\nPRIVACY_POLICY_URL=”https:\/\/www.ubuntu.com\/legal\/terms-and-policies\/privacy-policy”
\nVERSION_CODENAME=bionic
\nUBUNTU_CODENAME=bionic
\nchibi@1804:~$ nvcc -V
\nnvcc: NVIDIA (R) Cuda compiler driver
\nCopyright (c) 2005-2018 NVIDIA Corporation
\nBuilt on Sat_Aug_25_21:08:01_CDT_2018
\nCuda compilation tools, release 10.0, V10.0.130
\nchibi@1804:~$ sudo hddtemp \/dev\/sda
\n[sudo] chibi \u306e\u30d1\u30b9\u30ef\u30fc\u30c9:
\n\/dev\/sda: TS128GSSD370S: 19\u00b0C
\nchibi@1804:~\/NVIDIA_CUDA-10.0_Samples\/5_Simulations\/nbody$ .\/nbody -benchmark -fp64 -numbodies=2
\n56000 -numdevices=2
\nRun “nbody -benchmark [-numbodies=<numBodies>]” to measure performance.
\n-fullscreen (run n-body simulation in fullscreen mode)
\n-fp64 (use double precision floating point values for simulation)
\n-hostmem (stores simulation data in host memory)
\n-benchmark (run benchmark to measure performance)
\n-numbodies=<N> (number of bodies (>= 1) to run in simulation)
\n-device=<d> (where d=0,1,2…. for the CUDA device to use)
\n-numdevices=<i> (where i=(number of CUDA devices > 0) to use for simulation)
\n-compare (compares simulation results running once on the default GPU and once on the CPU)
\n-cpu (run n-body simulation on the CPU)
\n-tipsy=<file.bin> (load a tipsy model file for simulation)<\/p>\n
NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled.<\/p>\n
number of CUDA devices = 2
\n> Windowed mode
\n> Simulation data stored in system memory
\n> Double precision floating point simulation
\n> 2 Devices used for simulation
\nGPU Device 0: “TITAN V” with compute capability 7.0<\/p>\n
> Compute 7.0 CUDA device: [TITAN V] NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled.<\/p>\n number of CUDA devices = 2 > Compute 7.0 CUDA device: [TITAN V] \u30c7\u30fc\u30bf\u8a73\u7d30 Ubuntu18.04.1 TITAN Vx2 CUDA 10.0 Samples nbody benchmark \u500d\u7cbe\u5ea67049.009 GFLOP s \u5358\u7cbe\u5ea617130.392 GFLOP s<\/a><\/p>\n GPU\u6e29\u5ea6\u63a8\u79fb Ubuntu18.04.1 TITAN Vx2 CUDA 10.0 Samples nbody benchmark \u500d\u7cbe\u5ea67049.009 GFLOP s \u5358\u7cbe\u5ea617130.392 GFLOP s nvidia-smi sensors<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" chibi@1804:~$ cat \/etc\/os-release NAME=”Ubuntu” VERSION=”18.04.1 LTS (Bionic Beaver)” … \u7d9a\u304d\u3092\u8aad\u3080
\n> Compute 7.0 CUDA device: [TITAN V]
\nnumber of bodies = 256000
\n256000 bodies, total time for 10 iterations: 2789.158 ms
\n= 234.967 billion interactions per second
\n= 7049.009 double-precision GFLOP\/s at 30 flops per interaction<\/strong>
\nchibi@1804:~\/NVIDIA_CUDA-10.0_Samples\/5_Simulations\/nbody$ .\/nbody -benchmark -numbodies=256000 -numdevices=2
\nRun “nbody -benchmark [-numbodies=<numBodies>]” to measure performance.
\n-fullscreen (run n-body simulation in fullscreen mode)
\n-fp64 (use double precision floating point values for simulation)
\n-hostmem (stores simulation data in host memory)
\n-benchmark (run benchmark to measure performance)
\n-numbodies=<N> (number of bodies (>= 1) to run in simulation)
\n-device=<d> (where d=0,1,2…. for the CUDA device to use)
\n-numdevices=<i> (where i=(number of CUDA devices > 0) to use for simulation)
\n-compare (compares simulation results running once on the default GPU and once on the CPU)
\n-cpu (run n-body simulation on the CPU)
\n-tipsy=<file.bin> (load a tipsy model file for simulation)<\/p>\n
\n> Windowed mode
\n> Simulation data stored in system memory
\n> Single precision floating point simulation
\n> 2 Devices used for simulation
\nGPU Device 0: “TITAN V” with compute capability 7.0<\/p>\n
\n> Compute 7.0 CUDA device: [TITAN V]
\nnumber of bodies = 256000
\n256000 bodies, total time for 10 iterations: 765.143 ms
\n= 856.520 billion interactions per second
\n= 17130.392 single-precision GFLOP\/s at 20 flops per interaction<\/strong><\/p>\n