1function test136 2%TEST136 GxB_subassign, method 08, 09, 11 3 4% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2021, All Rights Reserved. 5% SPDX-License-Identifier: Apache-2.0 6 7fprintf ('test136: GxB_subassign, special cases\n') ; 8 9rng ('default') ; 10 11m = 1000 ; 12n = 5 ; 13am = 500 ; 14an = n ; 15 16C = sprand (m, n, 0.1) ; 17I = randperm (m, am) ; 18 19M = spones (sprand (am, an, 0.1)) ; 20A = sprand (am, an, 0.1) ; 21I0 = uint64 (I) - 1 ; 22 23M (:,1) = 0 ; 24M (1:2,1) = 1 ; 25A (:,1) = sprand (am, 1, 0.8) ; 26 27A (:,2) = 0 ; 28A (1:2,2) = 1 ; 29M (:,2) = spones (sprand (am, 1, 0.8)) ; 30 31% Method 08: C(I,J)<M> += A 32C2 = GB_mex_subassign (C, M, 'plus', A, I0, [ ], [ ]) ; 33C1 = GB_spec_subassign (C, M, 'plus', A, I , [ ], [ ], false) ; 34GB_spec_compare (C1, C2) ; 35 36% create a Mask with explicit zero entries 37[i j x] = find (M) ; 38nz = length (x) ; 39p = randperm (nz, floor(nz/2)) ; 40x (p) = 0 ; 41i = uint64 (i-1) ; 42j = uint64 (j-1) ; 43Mask = GB_mex_Matrix_build (i,j,x,am,an,[]) ; 44Mask = Mask.matrix ; 45 46% Method 09: C(I,J)<M,repl> = scalar 47scalar = sparse (pi) ; 48desc.outp = 'replace' ; 49C2 = GB_mex_subassign (C, Mask, [ ], scalar, I0, [ ], desc) ; 50C1 = GB_spec_subassign (C, Mask, [ ], scalar, I , [ ], desc, true) ; 51GB_spec_compare (C1, C2) ; 52 53% Method 11: C(I,J)<M,repl> += scalar 54scalar = sparse (pi) ; 55desc.outp = 'replace' ; 56C2 = GB_mex_subassign (C, Mask, 'plus', scalar, I0, [ ], desc) ; 57C1 = GB_spec_subassign (C, Mask, 'plus', scalar, I , [ ], desc, true) ; 58GB_spec_compare (C1, C2) ; 59 60% repeat method 02, subassignment with zombies: 61% subref triggers case 4 with zombies 62% no pending tuples 63clear desc 64d = [ ] ; 65m = 3 ; 66n = 8 ; 67C = sparse (rand (m,n)) ; 68C = tril (C,-1) + triu (C,1) ; 69 70Work (1).A = sparse (m,2) ; 71Work (1).I = [ ] ; 72Work (1).J = [1 2] ; 73Work (1).desc = d ; 74Work (2).A = sparse (m,2) ; 75Work (2).I = [ ] ; 76Work (2).J = [2 3] ; 77Work (2).desc = d ; 78Work (3).A = sparse (m,2) ; 79Work (3).I = [ ] ; 80Work (3).J = [4 8] ; 81Work (3).desc = d ; 82 83Work2 (1).A = sparse (m,2) ; 84Work2 (1).I = [ ] ; 85Work2 (1).J = uint64 ([1 2]) - 1 ; 86Work2 (1).desc = d ; 87Work2 (2).A = sparse (m,2) ; 88Work2 (2).I = [ ] ; 89Work2 (2).J = uint64 ([2 3]) - 1; 90Work2 (2).desc = d ; 91Work2 (3).A = sparse (m,2) ; 92Work2 (3).I = [ ] ; 93Work2 (3).J = uint64 ([4 8]) - 1 ; 94Work2 (3).desc = d ; 95 96C1 = C ; 97for k = 1:length (Work) 98 C1 = GB_spec_subassign (C1, [ ], [ ], ... 99 Work (k).A, Work (k).I, Work (k).J, Work (k).desc, false) ; 100end 101 102C2 = GB_mex_subassign (C, Work2) ; 103GB_spec_compare (C1, C2) ; 104 105C2 = GB_mex_subassign (C, Work2, [2 2]) ; 106GB_spec_compare (C1, C2) ; 107 108fprintf ('test136: all tests passed\n') ; 109