Number of threads in MPI paralellization

[bitelaum]

Hi,rnrnI was trying to run some of the examples of OpenLB, and found that I only have 1 thread per program.rnrnWhen I try to run, for example cylinder3d, I get:rnrn

Code:

bitz@bitz-desk:~/Documents/IC/Pacotes/olb-0.7r1/examples/cylinder3d$ ./cylinder3drn[MpiManager] sucessfully initialized, numThreads=1

rnrnI tried to pass the number of threads as an argument too like:rnrn

Code:

bitz@bitz-desk:~/Documents/IC/Pacotes/olb-0.7r1/examples/cylinder3d$ ./cylinder3d 4rn[MpiManager] sucessfully initialized, numThreads=1rn

rnrnbut I was unsuccessful.rnrnMy processor has 4 cores, how can I run a program with 4 threads for example.rnrnThanks,rnHenrique.rn

[kulka]

To use 4 cores you should run mpirun(or mpiexec) -np=4 ./cylinder3d

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