home.md

@@ -1029,6 +1029,80 @@ You can see from the output that we have **3 GPU's: Cuda devices: 0,1,2**
 
 #### Compiling and running GPU programs
 
+```
+module purge
+module add library/cuda/10.1/gcc.8.3.1
+
+cd
+git clone https://github.com/NVIDIA/cuda-samples.git
+cd cuda-samples/Samples/UnifiedMemoryPerf/
+make
+
+cat gpu-test.slurm
+#!/bin/bash
+#
+#SBATCH --partition=gpu
+#SBATCH --gres=gpu:1
+#SBATCH --ntasks=1
+#SBATCH --cpus-per-task=1
+#SBATCH --time=3:00
+
+module purge
+module add library/cuda/10.2/gcc.8.3.1
+
+hostname
+echo "Cuda devices: $CUDA_VISIBLE_DEVICES"
+$HOME/cuda-samples/Samples/UnifiedMemoryPerf/UnifiedMemoryPerf
+
+
+[user@res-hpc-gpu01 GPU]$ nvidia-smi 
+Tue Apr 14 16:06:06 2020       
++-----------------------------------------------------------------------------+
+| NVIDIA-SMI 440.33.01    Driver Version: 440.33.01    CUDA Version: 10.2     |
+|-------------------------------+----------------------+----------------------+
+| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
+| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
+|===============================+======================+======================|
+|   0  TITAN Xp            Off  | 00000000:3B:00.0 Off |                  N/A |
+| 17%   31C    P0    61W / 250W |      0MiB / 12196MiB |      0%      Default |
++-------------------------------+----------------------+----------------------+
+|   1  TITAN Xp            Off  | 00000000:AF:00.0 Off |                  N/A |
+| 23%   34C    P2    69W / 250W |    259MiB / 12196MiB |      2%      Default |
++-------------------------------+----------------------+----------------------+
+|   2  TITAN Xp            Off  | 00000000:D8:00.0 Off |                  N/A |
+| 18%   31C    P0    61W / 250W |      0MiB / 12196MiB |      0%      Default |
++-------------------------------+----------------------+----------------------+
+                                                                               
++-----------------------------------------------------------------------------+
+| Processes:                                                       GPU Memory |
+|  GPU       PID   Type   Process name                             Usage      |
+|=============================================================================|
+|    1     29726      C   ...les/UnifiedMemoryPerf/UnifiedMemoryPerf   145MiB |
++-----------------------------------------------------------------------------+
+
+
+cat slurm-206625.out 
+res-hpc-gpu01.researchlumc.nl
+Cuda devices: 0
+GPU Device 0: "Pascal" with compute capability 6.1
+
+Running ........................................................
+
+Overall Time For matrixMultiplyPerf 
+
+Printing Average of 100 measurements in (ms)
+Size_KB	 UMhint	UMhntAs	 UMeasy	  0Copy	MemCopy	CpAsync	CpHpglk	CpPglAs
+4	 10.879	 23.178	  0.222	  0.014	  0.031	  0.026	  0.035	  0.026
+16	 10.657	 25.849	  0.580	  0.030	  0.051	  0.046	  0.052	  0.039
+64	 21.117	 37.351	  0.852	  0.103	  0.124	  0.116	  0.095	  0.081
+256	 21.184	 38.074	  1.387	  0.587	  0.450	  0.415	  0.313	  0.302
+1024	 24.174	 33.124	  3.032	  3.650	  1.741	  1.649	  1.211	  1.199
+4096	 21.668	 35.167	 11.067	 25.803	  7.119	  7.104	  5.329	  5.333
+16384	 51.674	 62.263	 49.300	191.051	 34.179	 34.632	 28.582	 28.054
+
+NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled.
+```
+
 ### Slurm Environment Variables
 
 Available environment variables include: