7/31/2020 · osu_bw. This is a point to point benchmark. This micro-benchmarks runs on two cores only. Please use the local core to the adapter, in this case core 80. HPC-X MPI version 2.7.0 was used. 10000 iteration were used per test. OSU 5.6.2. Set NPS=1 (or 2) on the BIOS to reach line rate (more memory channels). Command example:, The osu_ bw benchmark measures the maximum rate that you can move data between two nodes. This benchmark also uses a ping-pong mechanism, similar to the osu_ latency code. In this case, the originator of the messages sends a number of pings in succession using the non-blocking MPI_ Isend function, while the receiving node consumes them as quickly …
Users can modify the number of communicating threads being used by using the -t runtime option. Examples : -t 4 // receiver threads = 4 and sender threads = 1 -t 4:6 // sender threads = 4 and receiver threads = 6 -t 2: // not defined osu_latency_mp – Multi-process Latency Test, Another benchmark you might want to run is the OSU Bandwidth. cat > c5n_osu_ bw .sbatch bw -job #SBATCH –ntasks=72 –nodes=2 #SBATCH –output=osu_ bw .out module load intelmpi srun –mpi=pmi2 /shared/osu-micro-benchmarks-5.6.2/mpi/pt2pt/osu_mbw_mr EOF sbatch c5n_osu_ bw .sbatch.
Intra-Node-Intra-Container latency and bandwidth. $ mpirun_rsh -np 2 node1-cont1 node1-cont1 ./osu_latency $ mpirun_rsh -np 2 node1-cont1 node1-cont1 ./osu_bw. The following example will measure the latency and bandwidth of communication between two Docker containers (node1-cont1 and node2-cont1) on two hosts.
MVAPICH :: Benchmarks, OSU Micro-benchmarks – UL HPC Tutorials, Benchmark Tests – NVIDIA Mellanox GPUDirect RDMA …
MVAPICH :: Benchmarks, 6/23/2017 · Examples: – mpirun_rsh -np 2 -hostfile hostfile MV2_USE_CUDA=1 osu_latency D D In this run, the latency test allocates buffers at both rank 0 and rank 1 on the GPU devices. – mpirun_rsh -np 2 -hostfile hostfile MV2_USE_CUDA=1 osu_bw D H In this run, the bandwidth test allocates buffers at rank 0 on the GPU device and buffers at rank 1 on the host.
MVAPICH-GDR v2.1, can be downloaded from: GPUDirect RDMA can be tested by running the micro-benchmarks from Ohio State University (OSU). Below is an example of running one of the OSU benchmark, which is already bundled with MVAPICH2-GDR v2.1, with GPUDirect RDMA.
2/9/2020 · For this purpose, all examples that I referred use a TCP socket. Before processing RDMA operations, a server and a client establish a TCP connection and exchange their local ID and QP number. This is why step 5 includes exchange identifier information. The TCP connection is also used in step 8, to let the counterpart know about its memory regions.
OnContentChangedListener (Java) IntByRef (Java) tsGetPixelValues (Python) Intrade (Python) Example #1. 0. Show file. File: device_cuda.cpp Project: baysmith/blender. CUDADevice( DeviceInfo & info, Stats & stats, bool background_) : Device( stats) { background = background_ cuDevId = info. num cuDevice = 0 cuContext = 0 if(cuda_error(cuInit(0))) …
