petsc-3.11.3 2019-06-26
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PetscOmpCtrlCreate

create a PETSc OpenMP controler, which manages PETSc's interaction with third party libraries using OpenMP

Synopsis

#include "petscsys.h"  
PetscErrorCode PetscOmpCtrlCreate(MPI_Comm petsc_comm,PetscInt nthreads,PetscOmpCtrl *pctrl)

Input Parameter

Output Parameter

See Also

PetscOmpCtrlDestroy()

Level

developer

Location

src/sys/utils/mpishm.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages
petsc_comm - a communicator some PETSc object (for example, a matrix) lives in
nthreads - number of threads per MPI rank to spawn in a library using OpenMP. If nthreads = -1, let PETSc decide a suitable value
pctrl - a PETSc OpenMP controler