petsc-3.4.5 2014-06-29

MatCUSPSetFormat

 Sets the storage format of CUSP matrices for a particular operation. Only the MatMult operation can use different GPU storage formats for AIJCUSP matrices. This requires the txpetscgpu package. Use --download-txpetscgpu to build/install PETSc to use these capabilities. If txpetscgpu is not enabled, this function simply passes through leaving the matrix in the original CSR format for usage on the GPU.

Synopsis

#include "petscmat.h" 
#undef __FUNCT__
#define __FUNCT__ "MatCUSPSetFormat"
PetscErrorCode MatCUSPSetFormat(Mat A,MatCUSPFormatOperation op,MatCUSPStorageFormat format)
Not Collective

Input Parameters

A - Matrix of type SEQAIJCUSP
op - MatCUSPFormatOperation. SEQAIJCUSP matrices support MAT_CUSP_MULT and MAT_CUSP_ALL. MPIAIJCUSP matrices support MAT_CUSP_MULT_DIAG, MAT_CUSP_MULT_OFFDIAG, and MAT_CUSP_ALL.
format - MatCUSPStorageFormat (one of MAT_CUSP_CSR, MAT_CUSP_DIA, MAT_CUSP_ELL)

Output Parameter

See Also

MatCUSPStorageFormat, MatCUSPFormatOperation

Level:intermediate
Location:src/mat/impls/aij/seq/seqcusp/aijcusp.cu
Index of all Mat routines
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Index of all manual pages