1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
//------------------------------------------------------------------------------
// GB_apply_unop_ijp_template: C = op (A), depending j
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// A can be jumbled. If A is jumbled, so is C.
// if A and C are bitmap, C->b is copied from A->b in the caller.
{
const int64_t *restrict kfirst_Aslice = A_ek_slicing ;
const int64_t *restrict klast_Aslice = A_ek_slicing + A_ntasks ;
const int64_t *restrict pstart_Aslice = A_ek_slicing + A_ntasks * 2 ;
//--------------------------------------------------------------------------
// Cx = positional_op (A)
//--------------------------------------------------------------------------
int tid ;
#pragma omp parallel for num_threads(A_nthreads) schedule(dynamic,1)
for (tid = 0 ; tid < A_ntasks ; tid++)
{
// if kfirst > klast then task tid does no work at all
int64_t kfirst = kfirst_Aslice [tid] ;
int64_t klast = klast_Aslice [tid] ;
//----------------------------------------------------------------------
// C(:,kfirst:klast) = op (A(:,kfirst:klast))
//----------------------------------------------------------------------
for (int64_t k = kfirst ; k <= klast ; k++)
{
//------------------------------------------------------------------
// find the part of A(:,k) and Cx to be operated on by this task
//------------------------------------------------------------------
int64_t j = GBh_A (Ah, k) ;
GB_GET_PA (pA_start, pA_end, tid, k, kfirst, klast, pstart_Aslice,
GBp_A (Ap, k, avlen), GBp_A (Ap, k+1, avlen)) ;
//------------------------------------------------------------------
// C(:,j) = op (A(:,j))
//------------------------------------------------------------------
for (int64_t p = pA_start ; p < pA_end ; p++)
{
if (!GBb_A (Ab, p)) continue ;
// Cx [p] = op (A (i,j))
GB_APPLY_OP (p, p) ;
}
}
}
}
#undef GB_APPLY_OP
|
