VecSetPinnedMemoryMin

Set the minimum data size for which pinned memory will be used for host (CPU) allocations.

Synopsis

#include "petscvec.h"   
PetscErrorCode VecSetPinnedMemoryMin(Vec v, size_t mbytes)

Logically Collective

Input Parameters

• v - the vector

• mbytes - minimum data size in bytes

Options Database Key

• -vec_pinned_memory_min - minimum size (in bytes) for an allocation to use pinned memory on host.

Note

Specifying -1 ensures that pinned memory will never be used.

See Also

Vectors and Parallel Data, Vec, VecGetPinnedMemoryMin()

Level

developer

Location

src/vec/vec/interface/vector.c

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Index of all Vec routines
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