petsc-3.14.6 2021-03-30

MatDenseCUDARestoreArrayRead

Restore read-only access to the CUDA buffer inside a dense matrix previously obtained with a call to MatDenseCUDAGetArrayRead().

#include "petscmat.h"  
PetscErrorCode MatDenseCUDARestoreArrayRead(Mat A, const PetscScalar **a)

Not Collective

	A	- the matrix
	array	- the GPU array in column major order

Data can be copied to the GPU due to operations done on the CPU. If you need write only access, use MatDenseCUDAGetArrayWrite().

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