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//------------------------------------------------------------------------------
// GB_bitmap_assign_noM_accum_whole: assign to C bitmap, mask M is not present
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// C<> += A assign
// C<> += A subassign
// C<repl> += A assign
// C<repl> += A subassign
// C<!> += A assign: no work to do
// C<!> += A subassign: no work to do
// C<!,repl> += A assign: just clear C of all entries, not done here
// C<!,repl> += A subassign: just clear C of all entries, not done here
//------------------------------------------------------------------------------
// C: bitmap
// M: none
// Mask_comp: true or false
// Mask_struct: true or false
// C_replace: true or false
// accum: present
// A: matrix (hyper, sparse, bitmap, or full), or scalar
// kind: assign or subassign (same action)
// If Mask_comp is true, then an empty mask is complemented. This case has
// already been handled by GB_assign_prep, which calls GB_clear, and thus
// Mask_comp is always false in this method.
#include "GB_bitmap_assign_methods.h"
#define GB_FREE_ALL ;
GrB_Info GB_bitmap_assign_noM_accum_whole
(
// input/output:
GrB_Matrix C, // input/output matrix in bitmap format
// inputs:
const bool C_replace, // descriptor for C
// const GrB_Matrix M, // mask matrix, not present here
const bool Mask_comp, // true for !M, false for M
const bool Mask_struct, // true if M is structural, false if valued
const GrB_BinaryOp accum, // present
const GrB_Matrix A, // input matrix, not transposed
const void *scalar, // input scalar
const GrB_Type scalar_type, // type of input scalar
GB_Context Context
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GBURBLE_BITMAP_ASSIGN ("bit5:whole", NULL, Mask_comp, accum,
GB_ALL, GB_ALL, GB_ASSIGN) ;
ASSERT_MATRIX_OK (C, "C for bitmap assign, no M, accum", GB0) ;
ASSERT_MATRIX_OK_OR_NULL (A, "A for bitmap assign, no M, accum", GB0) ;
//--------------------------------------------------------------------------
// get inputs
//--------------------------------------------------------------------------
GB_GET_C_BITMAP ; // C must be bitmap
GB_GET_A_AND_SCALAR
GB_GET_ACCUM_FOR_BITMAP
//--------------------------------------------------------------------------
// do the assignment
//--------------------------------------------------------------------------
if (!Mask_comp)
{
//----------------------------------------------------------------------
// C += A or += scalar
//----------------------------------------------------------------------
if (A == NULL)
{
//------------------------------------------------------------------
// scalar assignment: C += scalar
//------------------------------------------------------------------
// TODO: can skip the test for C_iso in the macros below
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
int8_t cb = Cb [pC] ; \
if (cb == 0) \
{ \
/* Cx [pC] = scalar */ \
GB_ASSIGN_SCALAR (pC) ; \
} \
else \
{ \
/* Cx [pC] += scalar */ \
GB_ACCUM_SCALAR (pC) ; \
} \
}
if (!C_iso)
{
#include "GB_bitmap_assign_C_whole_template.c"
}
// free the bitmap or set it to all ones
GB_bitmap_assign_to_full (C, nthreads_max) ;
}
else
{
//------------------------------------------------------------------
// matrix assignment: C += A
//------------------------------------------------------------------
if (GB_IS_FULL (A))
{
//--------------------------------------------------------------
// C += A where C is bitmap and A is full
//--------------------------------------------------------------
// TODO: can skip the test for C_iso in the macros below
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
int8_t cb = Cb [pC] ; \
if (cb == 0) \
{ \
/* Cx [pC] = Ax [pC] */ \
GB_ASSIGN_AIJ (pC, pC) ; \
} \
else \
{ \
/* Cx [pC] += Ax [pC] */ \
GB_ACCUM_AIJ (pC, pC) ; \
} \
}
if (!C_iso)
{
#include "GB_bitmap_assign_C_whole_template.c"
}
// free the bitmap or set it to all ones
GB_bitmap_assign_to_full (C, nthreads_max) ;
}
else if (GB_IS_BITMAP (A))
{
//--------------------------------------------------------------
// C += A where C and A are bitmap
//--------------------------------------------------------------
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
if (Ab [pC]) \
{ \
int8_t cb = Cb [pC] ; \
if (cb == 0) \
{ \
/* Cx [pC] = Ax [pC] */ \
GB_ASSIGN_AIJ (pC, pC) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
} \
else \
{ \
/* Cx [pC] += Ax [pC] */ \
GB_ACCUM_AIJ (pC, pC) ; \
} \
} \
}
#include "GB_bitmap_assign_C_whole_template.c"
C->nvals = cnvals ;
}
else
{
//--------------------------------------------------------------
// C += A where C is bitmap and A is sparse or hyper
//--------------------------------------------------------------
#undef GB_AIJ_WORK
#define GB_AIJ_WORK(pC,pA) \
{ \
int8_t cb = Cb [pC] ; \
if (cb == 0) \
{ \
/* Cx [pC] = Ax [pA] */ \
GB_ASSIGN_AIJ (pC, pA) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
} \
else \
{ \
/* Cx [pC] += Ax [pA] */ \
GB_ACCUM_AIJ (pC, pA) ; \
} \
}
#include "GB_bitmap_assign_A_whole_template.c"
C->nvals = cnvals ;
}
}
}
#if 0
else if (C_replace)
{
// The mask is not present yet complemented: C_replace phase only. all
// entries are deleted. This is done by GB_clear in GB_assign_prep
// and is thus not needed here.
GB_memset (Cb, 0, cnzmax, nthreads_max) ;
cnvals = 0 ;
}
#endif
//--------------------------------------------------------------------------
// return result
//--------------------------------------------------------------------------
ASSERT_MATRIX_OK (C, "C for bitmap assign, no M, accum, whole", GB0) ;
return (GrB_SUCCESS) ;
}
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