About Nvidia's MPs execution

MPs ' implementation: Main reading manual, Https://docs.nvidia.com/deploy/pdf/CUDA_Multi_Process_Service_Overview.pdf

Here's the command I need:

Start Mps-control

Export Cuda_visible_devices=0

Export Cuda_mps_pipe_directory=/tmp/nvidia-mps

Export Cuda_mps_log_directory=/tmp/nvidia-log

Nvidia-cuda-mps-control-d

Close Mps-control

echo Quit | Nvidia-cuda-mps-control

When you're done, you can view the log file.

The procedure for verifying MPs from this link

Http://stackoverflow.com/questions/34709749/how-do-i-use-nvidia-multi-process-service-mps-to-run-multiple-non-mpi-cuda-app

$ cat T1034.cu#include<stdio.h>#include<stdlib.h>#defineMax_delay 30#defineCudacheckerrors (msg) Do{cudaerror_t __err=Cudagetlasterror (); if(__err! =cudasuccess) {fprintf (stderr,"Fatal Error:%s (%s at%s:%d) \ n", MSG, cudageterrorstring (__err), __file__, __line__); fprintf (stderr,"* * * failed-aborting\n"); Exit (1); }   }  while(0) #include<time.h>#include<sys/time.h>#defineUsecpsec 1000000ULLunsignedLong LongDtime_usec (unsignedLong Longstart)  {Timeval TV; Gettimeofday (&AMP;TV,0); return((TV.TV_SEC*USECPSEC) +tv.tv_usec)-start;}#defineApprx_clks_per_sec 1000000000ULL__global__voidDelay_kernel (unsigned seconds) {unsignedLong LongDT =clock64 ();  while(Clock64 () < (DT + (seconds*APPRX_CLKS_PER_SEC))) ;}intMainintargcChar*argv[]) {unsigned delay_t=5;//seconds, approximatelyunsigned delay_t_r; if(Argc >1) Delay_t_r = Atoi (argv[1]); if((Delay_t_r >0) && (Delay_t_r < max_delay)) delay_t =Delay_t_r; unsignedLong LongDifft = Dtime_usec (0); Delay_kernel<<<1,1>>>(delay_t);  Cudadevicesynchronize (); Cudacheckerrors ("Kernel fail"); Difft=dtime_usec (DIFFT); printf ("kernel Duration:%fs\n", difft/(float) usecpsec); return 0;} $ NVCC-arch=sm_35-o t1034 t1034.cu$./T1034kernel Duration:6. 528574s$

$ cat start_as_root.bash#!/bin/bash# The following must be performed with root Privilegeexport cuda_visible_ DEVICES="0"nvidia-smi-i 0-C exclusive_processnvidia- Cuda-mps-control-d

$ cat mps_run#!/bin/bash. /t1034 &. /t1034$

$ cat stop_as_root.bash#!/bin/| nvidia-cuda-mps-controlnvidia2 -c default$

$./6. 078304s$

$./Start_as_root.bash$. /66. 263062s

About Nvidia's MPs execution