petsc-3.7.3 2016-07-24
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# MatPreallocatorPreallocate

Preallocates the input matrix, optionally filling it with zeros

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatPreallocatorPreallocate(Mat mat, PetscBool fill, Mat A)

### Input Parameter

| mat | - the preallocator
| fill | - fill the matrix with zeros

### Output Parameter

A -the matrix

### See Also

MATPREALLOCATOR

Level:advanced
Location: src/mat/impls/preallocator/matpreallocator.c
Index of all Mat routines
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Index of all manual pages