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#
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#
src/mat/impls/dense/mpi/cupm/cuda/matmpidensecuda.cu
Index of all Mat routines
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Index of all manual pages