MatDenseCUDAPlaceArray#
Allows one to replace the GPU array in a MATDENSECUDA
matrix with an array provided by the user. This is useful to avoid copying an array into a matrix
Synopsis#
#include "petscmat.h"
PetscErrorCode MatDenseCUDAPlaceArray(Mat mat, const PetscScalar *array)
Not Collective
Input Parameters#
mat - the matrix
array - the array in column major order
Note#
You can return to the original array with a call to MatDenseCUDAResetArray()
. The user is responsible for freeing this array; it will not be
freed when the matrix is destroyed. The array must have been allocated with cudaMalloc().
See Also#
MATDENSECUDA
, MatDenseCUDAGetArray()
, MatDenseCUDAResetArray()
, MatDenseCUDAReplaceArray()
Level#
developer
Location#
Implementations#
MatDenseCUDAPlaceArray_MPIDenseCUDA in src/mat/impls/dense/mpi/mpidense.c
MatDenseCUDAPlaceArray_SeqDenseCUDA in src/mat/impls/dense/seq/cuda/densecuda.cu
Index of all Mat routines
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Index of all manual pages