PETSc version 3.16.6
PetscOmpCtrlOmpRegionOnMasterBegin
Mark the beginning of an OpenMP library call on master ranks
Synopsis
#include "petscsys.h"
PetscErrorCode PetscOmpCtrlOmpRegionOnMasterBegin(PetscOmpCtrl ctrl)
Input Parameter
| ctrl | - a PETSc OMP controller
|
Notes
Only master ranks can call this function. Call PetscOmpCtrlGetOmpComms() to know if this is a master rank.
This function changes CPU binding of master ranks and nthreads-var of OpenMP runtime
See Also
PetscOmpCtrlOmpRegionOnMasterEnd()
Level
developer
Location
src/sys/utils/mpishm.c
Index of all Sys routines
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Index of all manual pages