MatCreateVecsEmpty#

Get vector(s) compatible with the matrix, i.e. with the same parallel layout, but without internal array.

Synopsis#

#include "slepcsys.h" 
PetscErrorCode MatCreateVecsEmpty(Mat mat,Vec *right,Vec *left)

Collective

Input Parameter#

  • mat - the matrix

Output Parameters#

  • right - (optional) vector that the matrix can be multiplied against

  • left - (optional) vector that the matrix vector product can be stored in

Note#

This is similar to MatCreateVecs(), but the new vectors do not have an internal array, so the intended usage is with VecPlaceArray().

See Also#

VecDuplicateEmpty()

Level#

developer

Location#

src/sys/mat/matutil.c

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