Re: [petsc-users] Requesting multi-GPUs

2018-09-13 Thread Matthew Knepley
On Thu, Sep 13, 2018 at 2:33 PM Manuel Valera wrote: > So, from what i get here the round robin assignation to each GPU device is > done automatically by PETSc, from mapping the system? or do i have to pass > a command line argument to do that? > It is automatic. Thanks, Matt > Thanks,

Re: [petsc-users] Requesting multi-GPUs

2018-09-13 Thread Manuel Valera
So, from what i get here the round robin assignation to each GPU device is done automatically by PETSc, from mapping the system? or do i have to pass a command line argument to do that? Thanks, On Wed, Sep 12, 2018 at 2:38 PM, Matthew Knepley wrote: > On Wed, Sep 12, 2018 at 5:31 PM Manuel Val

Re: [petsc-users] Requesting multi-GPUs

2018-09-12 Thread Matthew Knepley
On Wed, Sep 12, 2018 at 5:31 PM Manuel Valera wrote: > Ok then, how can i try getting more than one GPU with the same number of > MPI processes? > I do not believe we handle more than one GPU per MPI process. Is that what you are asking? Thanks, Matt > Thanks, > > On Wed, Sep 12, 2018

Re: [petsc-users] Requesting multi-GPUs

2018-09-12 Thread Manuel Valera
Ok then, how can i try getting more than one GPU with the same number of MPI processes? Thanks, On Wed, Sep 12, 2018 at 2:20 PM, Matthew Knepley wrote: > On Wed, Sep 12, 2018 at 5:13 PM Manuel Valera wrote: > >> Hello guys, >> >> I am working in a multi-gpu cluster and i want to request 2 or m

Re: [petsc-users] Requesting multi-GPUs

2018-09-12 Thread Matthew Knepley
On Wed, Sep 12, 2018 at 5:13 PM Manuel Valera wrote: > Hello guys, > > I am working in a multi-gpu cluster and i want to request 2 or more GPUs, > how can i do that from PETSc? evidently mpirun -n # is for requesting > processors, but what if i want to use one mpi processor but several GPUs > ins

[petsc-users] Requesting multi-GPUs

2018-09-12 Thread Manuel Valera
Hello guys, I am working in a multi-gpu cluster and i want to request 2 or more GPUs, how can i do that from PETSc? evidently mpirun -n # is for requesting processors, but what if i want to use one mpi processor but several GPUs instead? Also, i understand the GPU handles the linear system solver