extern "C" magma_int_t
magma_dcumiccsetup(
magma_d_matrix A,
magma_d_preconditioner *precond,
magma_queue_t queue )
{
magma_int_t info = 0;
cusparseHandle_t cusparseHandle=NULL;
cusparseMatDescr_t descrA=NULL;
cusparseMatDescr_t descrL=NULL;
cusparseMatDescr_t descrU=NULL;
#if CUDA_VERSION >= 7000
csric02Info_t info_M=NULL;
void *pBuffer = NULL;
#endif
magma_d_matrix hA={Magma_CSR}, hACSR={Magma_CSR}, U={Magma_CSR};
CHECK( magma_dmtransfer( A, &hA, A.memory_location, Magma_CPU, queue ));
U.diagorder_type = Magma_VALUE;
CHECK( magma_dmconvert( hA, &hACSR, hA.storage_type, Magma_CSR, queue ));
// in case using fill-in
if( precond->levels > 0 ){
magma_d_matrix hAL={Magma_CSR}, hAUt={Magma_CSR};
CHECK( magma_dsymbilu( &hACSR, precond->levels, &hAL, &hAUt, queue ));
magma_dmfree(&hAL, queue);
magma_dmfree(&hAUt, queue);
}
CHECK( magma_dmconvert( hACSR, &U, Magma_CSR, Magma_CSRL, queue ));
magma_dmfree( &hACSR, queue );
CHECK( magma_dmtransfer(U, &(precond->M), Magma_CPU, Magma_DEV, queue ));
// CUSPARSE context //
CHECK_CUSPARSE( cusparseCreate( &cusparseHandle ));
CHECK_CUSPARSE( cusparseSetStream( cusparseHandle, queue->cuda_stream() ));
CHECK_CUSPARSE( cusparseCreateMatDescr( &descrA ));
CHECK_CUSPARSE( cusparseCreateSolveAnalysisInfo( &(precond->cuinfo) ));
// use kernel to manually check for zeros n the diagonal
CHECK( magma_ddiagcheck( precond->M, queue ) );
#if CUDA_VERSION >= 7000
// this version has the bug fixed where a zero on the diagonal causes a crash
CHECK_CUSPARSE( cusparseCreateCsric02Info(&info_M) );
CHECK_CUSPARSE( cusparseSetMatType( descrA, CUSPARSE_MATRIX_TYPE_GENERAL ));
CHECK_CUSPARSE( cusparseSetMatIndexBase( descrA, CUSPARSE_INDEX_BASE_ZERO ));
int buffersize;
int structural_zero;
int numerical_zero;
CHECK_CUSPARSE(
cusparseDcsric02_bufferSize( cusparseHandle,
precond->M.num_rows, precond->M.nnz, descrA,
precond->M.dval, precond->M.drow, precond->M.dcol,
info_M,
&buffersize ) );
CHECK( magma_malloc((void**)&pBuffer, buffersize) );
CHECK_CUSPARSE( cusparseDcsric02_analysis( cusparseHandle,
precond->M.num_rows, precond->M.nnz, descrA,
precond->M.dval, precond->M.drow, precond->M.dcol,
info_M, CUSPARSE_SOLVE_POLICY_NO_LEVEL, pBuffer ));
CHECK_CUSPARSE( cusparseXcsric02_zeroPivot( cusparseHandle, info_M, &numerical_zero ) );
CHECK_CUSPARSE( cusparseXcsric02_zeroPivot( cusparseHandle, info_M, &structural_zero ) );
CHECK_CUSPARSE(
cusparseDcsric02( cusparseHandle,
precond->M.num_rows, precond->M.nnz, descrA,
precond->M.dval, precond->M.drow, precond->M.dcol,
info_M, CUSPARSE_SOLVE_POLICY_NO_LEVEL, pBuffer) );
#else
// this version contains the bug but is needed for backward compability
CHECK_CUSPARSE( cusparseSetMatType( descrA, CUSPARSE_MATRIX_TYPE_SYMMETRIC ));
CHECK_CUSPARSE( cusparseSetMatDiagType( descrA, CUSPARSE_DIAG_TYPE_NON_UNIT ));
CHECK_CUSPARSE( cusparseSetMatIndexBase( descrA, CUSPARSE_INDEX_BASE_ZERO ));
CHECK_CUSPARSE( cusparseSetMatFillMode( descrA, CUSPARSE_FILL_MODE_LOWER ));
CHECK_CUSPARSE( cusparseDcsrsm_analysis( cusparseHandle,
CUSPARSE_OPERATION_NON_TRANSPOSE,
precond->M.num_rows, precond->M.nnz, descrA,
precond->M.dval, precond->M.drow, precond->M.dcol,
precond->cuinfo ));
CHECK_CUSPARSE( cusparseDcsric0( cusparseHandle, CUSPARSE_OPERATION_NON_TRANSPOSE,
precond->M.num_rows, descrA,
precond->M.dval,
precond->M.drow,
precond->M.dcol,
precond->cuinfo ));
#endif
CHECK_CUSPARSE( cusparseCreateMatDescr( &descrL ));
CHECK_CUSPARSE( cusparseSetMatType( descrL, CUSPARSE_MATRIX_TYPE_TRIANGULAR ));
CHECK_CUSPARSE( cusparseSetMatDiagType( descrL, CUSPARSE_DIAG_TYPE_NON_UNIT ));
CHECK_CUSPARSE( cusparseSetMatIndexBase( descrL, CUSPARSE_INDEX_BASE_ZERO ));
CHECK_CUSPARSE( cusparseSetMatFillMode( descrL, CUSPARSE_FILL_MODE_LOWER ));
CHECK_CUSPARSE( cusparseCreateSolveAnalysisInfo( &precond->cuinfoL ));
CHECK_CUSPARSE( cusparseDcsrsm_analysis( cusparseHandle,
CUSPARSE_OPERATION_NON_TRANSPOSE, precond->M.num_rows,
precond->M.nnz, descrL,
precond->M.dval, precond->M.drow, precond->M.dcol, precond->cuinfoL ));
CHECK_CUSPARSE( cusparseCreateMatDescr( &descrU ));
CHECK_CUSPARSE( cusparseSetMatType( descrU, CUSPARSE_MATRIX_TYPE_TRIANGULAR ));
CHECK_CUSPARSE( cusparseSetMatDiagType( descrU, CUSPARSE_DIAG_TYPE_NON_UNIT ));
CHECK_CUSPARSE( cusparseSetMatIndexBase( descrU, CUSPARSE_INDEX_BASE_ZERO ));
CHECK_CUSPARSE( cusparseSetMatFillMode( descrU, CUSPARSE_FILL_MODE_LOWER ));
CHECK_CUSPARSE( cusparseCreateSolveAnalysisInfo( &precond->cuinfoU ));
CHECK_CUSPARSE( cusparseDcsrsm_analysis( cusparseHandle,
CUSPARSE_OPERATION_TRANSPOSE, precond->M.num_rows,
precond->M.nnz, descrU,
precond->M.dval, precond->M.drow, precond->M.dcol, precond->cuinfoU ));
if( precond->maxiter < 50 ){
//prepare for iterative solves
// copy the matrix to precond->L and (transposed) to precond->U
CHECK( magma_dmtransfer(precond->M, &(precond->L), Magma_DEV, Magma_DEV, queue ));
CHECK( magma_dmtranspose( precond->L, &(precond->U), queue ));
// extract the diagonal of L into precond->d
CHECK( magma_djacobisetup_diagscal( precond->L, &precond->d, queue ));
CHECK( magma_dvinit( &precond->work1, Magma_DEV, hA.num_rows, 1, MAGMA_D_ZERO, queue ));
// extract the diagonal of U into precond->d2
CHECK( magma_djacobisetup_diagscal( precond->U, &precond->d2, queue ));
CHECK( magma_dvinit( &precond->work2, Magma_DEV, hA.num_rows, 1, MAGMA_D_ZERO, queue ));
}
/*
// to enable also the block-asynchronous iteration for the triangular solves
CHECK( magma_dmtransfer( precond->M, &hA, Magma_DEV, Magma_CPU, queue ));
hA.storage_type = Magma_CSR;
magma_d_matrix hD, hR, hAt
CHECK( magma_dcsrsplit( 256, hA, &hD, &hR, queue ));
CHECK( magma_dmtransfer( hD, &precond->LD, Magma_CPU, Magma_DEV, queue ));
CHECK( magma_dmtransfer( hR, &precond->L, Magma_CPU, Magma_DEV, queue ));
magma_dmfree(&hD, queue );
magma_dmfree(&hR, queue );
CHECK( magma_d_cucsrtranspose( hA, &hAt, queue ));
CHECK( magma_dcsrsplit( 256, hAt, &hD, &hR, queue ));
CHECK( magma_dmtransfer( hD, &precond->UD, Magma_CPU, Magma_DEV, queue ));
CHECK( magma_dmtransfer( hR, &precond->U, Magma_CPU, Magma_DEV, queue ));
magma_dmfree(&hD, queue );
magma_dmfree(&hR, queue );
magma_dmfree(&hA, queue );
magma_dmfree(&hAt, queue );
*/
cleanup:
#if CUDA_VERSION >= 7000
magma_free( pBuffer );
cusparseDestroyCsric02Info( info_M );
#endif
cusparseDestroySolveAnalysisInfo( precond->cuinfo );
cusparseDestroyMatDescr( descrL );
cusparseDestroyMatDescr( descrU );
cusparseDestroyMatDescr( descrA );
cusparseDestroy( cusparseHandle );
magma_dmfree(&U, queue );
magma_dmfree(&hA, queue );
return info;
}
extern "C" magma_int_t
magma_dcumiccsetup(
magma_d_sparse_matrix A, magma_d_preconditioner *precond,
magma_queue_t queue )
{
magma_d_sparse_matrix hA, hACSR, U, hD, hR, hAt;
magma_d_mtransfer( A, &hA, A.memory_location, Magma_CPU, queue );
U.diagorder_type = Magma_VALUE;
magma_d_mconvert( hA, &hACSR, hA.storage_type, Magma_CSR, queue );
magma_d_mconvert( hACSR, &U, Magma_CSR, Magma_CSRL, queue );
magma_d_mfree( &hACSR, queue );
magma_d_mtransfer(U, &(precond->M), Magma_CPU, Magma_DEV, queue );
// CUSPARSE context //
cusparseHandle_t cusparseHandle;
cusparseStatus_t cusparseStatus;
cusparseStatus = cusparseCreate(&cusparseHandle);
cusparseSetStream( cusparseHandle, queue );
if (cusparseStatus != 0) printf("error in Handle.\n");
cusparseMatDescr_t descrA;
cusparseStatus = cusparseCreateMatDescr(&descrA);
if (cusparseStatus != 0) printf("error in MatrDescr.\n");
cusparseStatus =
cusparseSetMatType(descrA,CUSPARSE_MATRIX_TYPE_SYMMETRIC);
if (cusparseStatus != 0) printf("error in MatrType.\n");
cusparseStatus =
cusparseSetMatDiagType (descrA, CUSPARSE_DIAG_TYPE_NON_UNIT);
if (cusparseStatus != 0) printf("error in DiagType.\n");
cusparseStatus =
cusparseSetMatIndexBase(descrA,CUSPARSE_INDEX_BASE_ZERO);
if (cusparseStatus != 0) printf("error in IndexBase.\n");
cusparseStatus =
cusparseSetMatFillMode(descrA,CUSPARSE_FILL_MODE_LOWER);
if (cusparseStatus != 0) printf("error in fillmode.\n");
cusparseStatus =
cusparseCreateSolveAnalysisInfo( &(precond->cuinfo) );
if (cusparseStatus != 0) printf("error in info.\n");
// end CUSPARSE context //
cusparseStatus =
cusparseDcsrsm_analysis( cusparseHandle,
CUSPARSE_OPERATION_NON_TRANSPOSE,
precond->M.num_rows, precond->M.nnz, descrA,
precond->M.dval, precond->M.drow, precond->M.dcol,
precond->cuinfo);
if (cusparseStatus != 0) printf("error in analysis IC.\n");
cusparseStatus =
cusparseDcsric0( cusparseHandle, CUSPARSE_OPERATION_NON_TRANSPOSE,
precond->M.num_rows, descrA,
precond->M.dval,
precond->M.drow,
precond->M.dcol,
precond->cuinfo);
cusparseStatus =
cusparseDestroySolveAnalysisInfo( precond->cuinfo );
if (cusparseStatus != 0) printf("error in info-free.\n");
if (cusparseStatus != 0) printf("error in ICC.\n");
cusparseMatDescr_t descrL;
cusparseStatus = cusparseCreateMatDescr(&descrL);
if (cusparseStatus != 0) printf("error in MatrDescr.\n");
cusparseStatus =
cusparseSetMatType(descrL,CUSPARSE_MATRIX_TYPE_TRIANGULAR);
if (cusparseStatus != 0) printf("error in MatrType.\n");
cusparseStatus =
cusparseSetMatDiagType (descrL, CUSPARSE_DIAG_TYPE_NON_UNIT);
if (cusparseStatus != 0) printf("error in DiagType.\n");
cusparseStatus =
cusparseSetMatIndexBase(descrL,CUSPARSE_INDEX_BASE_ZERO);
if (cusparseStatus != 0) printf("error in IndexBase.\n");
cusparseStatus =
cusparseSetMatFillMode(descrL,CUSPARSE_FILL_MODE_LOWER);
if (cusparseStatus != 0) printf("error in fillmode.\n");
cusparseStatus = cusparseCreateSolveAnalysisInfo(&precond->cuinfoL);
if (cusparseStatus != 0) printf("error in info.\n");
cusparseStatus =
cusparseDcsrsm_analysis(cusparseHandle,
CUSPARSE_OPERATION_NON_TRANSPOSE, precond->M.num_rows,
precond->M.nnz, descrL,
precond->M.dval, precond->M.drow, precond->M.dcol, precond->cuinfoL );
if (cusparseStatus != 0) printf("error in analysis L.\n");
cusparseDestroyMatDescr( descrL );
cusparseMatDescr_t descrU;
cusparseStatus = cusparseCreateMatDescr(&descrU);
if (cusparseStatus != 0) printf("error in MatrDescr.\n");
cusparseStatus =
cusparseSetMatType(descrU,CUSPARSE_MATRIX_TYPE_TRIANGULAR);
if (cusparseStatus != 0) printf("error in MatrType.\n");
cusparseStatus =
cusparseSetMatDiagType (descrU, CUSPARSE_DIAG_TYPE_NON_UNIT);
if (cusparseStatus != 0) printf("error in DiagType.\n");
cusparseStatus =
cusparseSetMatIndexBase(descrU,CUSPARSE_INDEX_BASE_ZERO);
if (cusparseStatus != 0) printf("error in IndexBase.\n");
cusparseStatus =
cusparseSetMatFillMode(descrU,CUSPARSE_FILL_MODE_LOWER);
if (cusparseStatus != 0) printf("error in fillmode.\n");
cusparseStatus = cusparseCreateSolveAnalysisInfo(&precond->cuinfoU);
if (cusparseStatus != 0) printf("error in info.\n");
cusparseStatus =
cusparseDcsrsm_analysis(cusparseHandle,
CUSPARSE_OPERATION_TRANSPOSE, precond->M.num_rows,
precond->M.nnz, descrU,
precond->M.dval, precond->M.drow, precond->M.dcol, precond->cuinfoU );
if (cusparseStatus != 0) printf("error in analysis U.\n");
cusparseDestroyMatDescr( descrU );
cusparseDestroyMatDescr( descrA );
cusparseDestroy( cusparseHandle );
magma_d_mfree(&U, queue );
magma_d_mfree(&hA, queue );
/*
// to enable also the block-asynchronous iteration for the triangular solves
magma_d_mtransfer( precond->M, &hA, Magma_DEV, Magma_CPU, queue );
hA.storage_type = Magma_CSR;
magma_dcsrsplit( 256, hA, &hD, &hR, queue );
magma_d_mtransfer( hD, &precond->LD, Magma_CPU, Magma_DEV, queue );
magma_d_mtransfer( hR, &precond->L, Magma_CPU, Magma_DEV, queue );
magma_d_mfree(&hD, queue );
magma_d_mfree(&hR, queue );
magma_d_cucsrtranspose( hA, &hAt, queue );
magma_dcsrsplit( 256, hAt, &hD, &hR, queue );
magma_d_mtransfer( hD, &precond->UD, Magma_CPU, Magma_DEV, queue );
magma_d_mtransfer( hR, &precond->U, Magma_CPU, Magma_DEV, queue );
magma_d_mfree(&hD, queue );
magma_d_mfree(&hR, queue );
magma_d_mfree(&hA, queue );
magma_d_mfree(&hAt, queue );
*/
return MAGMA_SUCCESS;
}