Date: 2013-07-02T14:41:52+00:00

Actual source code: cuspmatimpl.h
petsc-3.4.2 2013-07-02
4: #include <../src/vec/vec/impls/seq/seqcusp/cuspvecimpl.h> 6: /*for MatCreateSeqAIJCUSPFromTriple*/ 7: #include <cusp/coo_matrix.h> 8: /* for everything else */ 9: #include <cusp/csr_matrix.h> 10: #include <cusp/multiply.h> 12: /* need the thrust version */ 13: #include <thrust/version.h> 15: /* Old way */ 16: #define CUSPMATRIX cusp::csr_matrix<PetscInt,PetscScalar,cusp::device_memory> 18: /* New Way */ 19: #if defined(PETSC_HAVE_TXPETSCGPU) 20: #include "tx_sparse_interface.h" 22: struct Mat_SeqAIJCUSP { 23: GPU_Matrix_Ifc *mat; /* pointer to the matrix on the GPU */ 24: CUSPARRAY *tempvec; /*pointer to a workvector to which we can copy the relevant indices of a vector we want to multiply */ 25: PetscInt nonzerorow; /* number of nonzero rows ... used in the flop calculations */ 26: MatCUSPStorageFormat format; /* the storage format for the matrix on the device */ 27: }; 29: #else /* PETSC_HAVE_TXPETSCGPU not defined! */ 31: struct Mat_SeqAIJCUSP { 32: CUSPMATRIX *mat; /* pointer to the matrix on the GPU */ 33: CUSPINTARRAYGPU *indices; /*pointer to an array containing the nonzero row indices, should usecprow be true*/ 34: CUSPARRAY *tempvec; /*pointer to a workvector to which we can copy the relevant indices of a vector we want to multiply */ 35: PetscInt nonzerorow; /* number of nonzero rows ... used in the flop calculations */ 36: }; 37: #endif 40: PETSC_INTERN PetscErrorCode MatCUSPCopyToGPU(Mat); 41: PETSC_INTERN PetscErrorCode MatCUSPCopyFromGPU(Mat, CUSPMATRIX*); 42: #endif