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//------------------------------------------------------------------------------
// GB_AxB_saxpy4: compute C+=A*B: C full, A sparse/hyper, B bitmap/full
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// GB_AxB_saxpy4 computes C+=A*B where C is as-if-full, A is
// sparse/hypersparse, and B is bitmap/full (or as-if-full). No mask is
// present, C_replace is false, the accum matches the monoid, no typecasting is
// needed, and no user-defined types or operators are used.
// The ANY monoid is not supported, since its use as accum would be unusual.
// The monoid must have an atomic implementation, so the TIMES monoid for
// complex types is not supported.
//------------------------------------------------------------------------------
#include "GB_mxm.h"
#include "GB_control.h"
#ifndef GBCUDA_DEV
#include "GB_AxB__include2.h"
#endif
#define GB_FREE_WORKSPACE \
{ \
GB_WERK_POP (A_slice, int64_t) ; \
}
#define GB_FREE_ALL \
{ \
GB_FREE_WORKSPACE ; \
GB_phybix_free (C) ; \
}
//------------------------------------------------------------------------------
// GB_AxB_saxpy4: compute C+=A*B: C full, A sparse/hyper, B bitmap/full
//------------------------------------------------------------------------------
GrB_Info GB_AxB_saxpy4 // C += A*B
(
GrB_Matrix C, // users input/output matrix
const GrB_Matrix A, // input matrix A
const GrB_Matrix B, // input matrix B
const GrB_Semiring semiring, // semiring that defines C=A*B and accum
const bool flipxy, // if true, do z=fmult(b,a) vs fmult(a,b)
bool *done_in_place, // if true, saxpy4 has computed the result
GB_Context Context
)
{
//--------------------------------------------------------------------------
// saxpy4 is disabled if GraphBLAS is compiled as compact
//--------------------------------------------------------------------------
#ifdef GBCUDA_DEV
return (GrB_NO_VALUE) ;
#else
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GrB_Info info ;
GB_WERK_DECLARE (A_slice, int64_t) ;
ASSERT_MATRIX_OK (C, "C for saxpy4 C+=A*B", GB0) ;
ASSERT (GB_as_if_full (C)) ;
ASSERT (!GB_PENDING (C)) ;
ASSERT (!GB_JUMBLED (C)) ;
ASSERT (!GB_ZOMBIES (C)) ;
ASSERT_MATRIX_OK (A, "A for saxpy4 C+=A*B", GB0) ;
ASSERT (GB_IS_SPARSE (A) || GB_IS_HYPERSPARSE (A)) ;
ASSERT (!GB_PENDING (A)) ;
ASSERT (GB_JUMBLED_OK (A)) ;
ASSERT (!GB_ZOMBIES (A)) ;
ASSERT_MATRIX_OK (B, "B for saxpy4 C+=A*B", GB0) ;
ASSERT (GB_IS_BITMAP (B) || GB_as_if_full (B)) ;
ASSERT (!GB_PENDING (B)) ;
ASSERT (!GB_JUMBLED (B)) ;
ASSERT (!GB_ZOMBIES (B)) ;
ASSERT_SEMIRING_OK (semiring, "semiring for saxpy4 C+=A*B", GB0) ;
ASSERT (A->vdim == B->vlen) ;
//--------------------------------------------------------------------------
// get the semiring operators
//--------------------------------------------------------------------------
GrB_BinaryOp mult = semiring->multiply ;
// GrB_Monoid add = semiring->add ;
ASSERT (mult->ztype == semiring->add->op->ztype) ;
bool A_is_pattern, B_is_pattern ;
GB_binop_pattern (&A_is_pattern, &B_is_pattern, flipxy, mult->opcode) ;
GB_Opcode mult_binop_code, add_binop_code ;
GB_Type_code xcode, ycode, zcode ;
bool builtin_semiring = GB_AxB_semiring_builtin (A, A_is_pattern, B,
B_is_pattern, semiring, flipxy, &mult_binop_code, &add_binop_code,
&xcode, &ycode, &zcode) ;
if (!builtin_semiring || (add_binop_code == GB_ANY_binop_code)
|| (add_binop_code == GB_TIMES_binop_code && (zcode >= GB_FC32_code)))
{
// The semiring must be built-in, and cannot use the ANY monoid.
// In addition, the TIMES monoid for complex types is not supported,
// since it cannot be done atomically.
return (GrB_NO_VALUE) ;
}
GBURBLE ("(saxpy4: %s += %s*%s) ",
GB_sparsity_char_matrix (C),
GB_sparsity_char_matrix (A),
GB_sparsity_char_matrix (B)) ;
//--------------------------------------------------------------------------
// ensure C is non-iso
//--------------------------------------------------------------------------
GB_OK (GB_convert_any_to_non_iso (C, true, Context)) ;
//--------------------------------------------------------------------------
// determine the # of threads to use and the parallel tasks
//--------------------------------------------------------------------------
int nthreads, ntasks, nfine_tasks_per_vector ;
bool use_coarse_tasks, use_atomics ;
GB_AxB_saxpy4_tasks (&ntasks, &nthreads, &nfine_tasks_per_vector,
&use_coarse_tasks, &use_atomics, GB_nnz (A), GB_nnz_held (B),
B->vdim, C->vlen, Context) ;
if (!use_coarse_tasks)
{
// slice the matrix A for each team of fine tasks
GB_WERK_PUSH (A_slice, nfine_tasks_per_vector + 1, int64_t) ;
if (A_slice == NULL)
{
// out of memory
GB_FREE_ALL ;
return (GrB_OUT_OF_MEMORY) ;
}
GB_pslice (A_slice, A->p, A->nvec, nfine_tasks_per_vector, true) ;
}
//--------------------------------------------------------------------------
// define the worker for the switch factory
//--------------------------------------------------------------------------
info = GrB_NO_VALUE ;
#define GB_Asaxpy4B(add,mult,xname) GB (_Asaxpy4B_ ## add ## mult ## xname)
#define GB_AxB_WORKER(add,mult,xname) \
{ \
info = GB_Asaxpy4B (add,mult,xname) (C, A, \
B, ntasks, nthreads, nfine_tasks_per_vector, \
use_coarse_tasks, use_atomics, A_slice, Context) ; \
} \
break ;
//--------------------------------------------------------------------------
// launch the switch factory
//--------------------------------------------------------------------------
// disabled the ANY monoid, and the TIMES monoid for complex types
#define GB_NO_ANY_MONOID
#define GB_NO_NONATOMIC_MONOID
#include "GB_AxB_factory.c"
//--------------------------------------------------------------------------
// free workspace and return result
//--------------------------------------------------------------------------
GB_FREE_WORKSPACE ;
if (info == GrB_NO_VALUE)
{
// saxpy4 doesn't handle this case; punt to saxpy3, bitmap saxpy, etc
GBURBLE ("(punt) ") ;
return (info) ;
}
else if (info != GrB_SUCCESS)
{
// out of memory
GB_FREE_ALL ;
return (GrB_OUT_OF_MEMORY) ;
}
else
{
ASSERT_MATRIX_OK (C, "saxpy4: output", GB0) ;
(*done_in_place) = true ;
return (GrB_SUCCESS) ;
}
#endif
}
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