MatDenseHIPGetArrayWrite

Provides write access to the HIP buffer inside a MATDENSEHIP matrix.

Synopsis

PetscErrorCode MatDenseHIPGetArrayWrite(Mat A, PetscScalar **a)

Not Collective

Input Parameter

• A - the matrix

Output Parameter

• a - the GPU array in column major order

Notes

The data on the GPU may not be updated due to operations done on the CPU. If you need updated data, use MatDenseHIPGetArray().

The array must be restored with MatDenseHIPRestoreArrayWrite() when no longer needed.

See Also

MATDENSEHIP, MatDenseHIPGetArray(), MatDenseHIPRestoreArray(), MatDenseHIPRestoreArrayWrite(), MatDenseHIPGetArrayRead(), MatDenseHIPRestoreArrayRead()

Level

developer

Location

src/mat/impls/dense/mpi/cupm/hip/matmpidensehip.hip.cpp

---

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages