PETSc version 3.16.6
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MatSeqAIJCUSPARSEGetArrayWrite

gives write access to the array where the device data for a MATSEQAIJCUSPARSE matrix is stored

Synopsis

#include "petscmat.h" 
PetscErrorCode MatSeqAIJCUSPARSEGetArrayWrite(Mat A, PetscScalar** a)
Not Collective

Input Parameter

A - a MATSEQAIJCUSPARSE matrix

Output Parameter

a - pointer to the device data

Notes: does not trigger host-device copies and flags data validity on the GPU

See Also

MatSeqAIJCUSPARSEGetArray(), MatSeqAIJCUSPARSEGetArrayRead(), MatSeqAIJCUSPARSERestoreArrayWrite()

Level

developer

Location

src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
Index of all Mat routines
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