Profiling results ----------------- Total cpu time observed: 27860ms (out of 28308ms) Number of samples taken: 78 (once every 357ms) ========================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ========================================================================== ??? [29] 100.0% [1] 24668(88.5%) 0(0.0%) profile-thunk16 ...t/pkgs/profile-lib/main.rkt:9:0 run [5] 100.0% -------------------------------------------------------------------------- ??? [56] 100.0% [2] 20778(74.6%) 0(0.0%) iterate-egraph!13 ...p/src/core/simplify.rkt:105:0 one-iter [6] 100.0% -------------------------------------------------------------------------- ??? [29] 100.0% [3] 19194(68.9%) 0(0.0%) run-improve50 ...ie/develop/src/mainloop.rkt:234:0 for-loop [7] 98.5% setup-alt-simplified [9] 1.5% -------------------------------------------------------------------------- ??? [56] 100.0% [4] 642(2.3%) 0(0.0%) loop ...herbie/develop/src/core/simplify.rkt:237:2 pass [8] 100.0% -------------------------------------------------------------------------- profile-thunk16 [1] 100.0% [5] 24668(88.5%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:39:2 ??? [29] 100.0% -------------------------------------------------------------------------- iterate-egraph!13 [2] 100.0% [6] 20778(74.6%) 0(0.0%) one-iter ...ie/develop/src/core/simplify.rkt:116:0 for-loop [11] 87.6% for-loop [12] 10.9% filter [14] 1.5% -------------------------------------------------------------------------- run-improve50 [3] 100.0% [7] 18902(67.8%) 0(0.0%) for-loop ...herbie/develop/src/mainloop.rkt:249:10 run-iter! [10] 100.0% -------------------------------------------------------------------------- loop [4] 100.0% [8] 642(2.3%) 0(0.0%) pass ...herbie/develop/src/core/simplify.rkt:227:2 for-loop [13] 100.0% -------------------------------------------------------------------------- run-improve50 [3] 100.0% [9] 292(1.0%) 0(0.0%) setup-alt-simplified .../develop/src/glue.rkt:49:0 simplify-alt [15] 100.0% -------------------------------------------------------------------------- for-loop [7] 100.0% [10] 18902(67.8%) 0(0.0%) run-iter! ...herbie/develop/src/mainloop.rkt:215:0 simplify! [16] 96.4% finalize-iter! [19] 3.6% -------------------------------------------------------------------------- one-iter [6] 100.0% [11] 18210(65.4%) 0(0.0%) for-loop ...ie/develop/src/core/simplify.rkt:166:2 for-loop [17] 86.9% match-e [18] 7.4% update-leader! [30] 5.7% -------------------------------------------------------------------------- for-loop [12] 50.0% one-iter [6] 50.0% [12] 2266(8.1%) 644(2.3%) for-loop ...e/develop/src/core/simplify.rkt:126:12 for-loop [12] 50.0% match-e [18] 35.8% -------------------------------------------------------------------------- pass [8] 100.0% [13] 642(2.3%) 0(0.0%) for-loop ...e/develop/src/core/simplify.rkt:230:29 for-loop [20] 51.7% argmin [21] 48.3% -------------------------------------------------------------------------- one-iter [6] 100.0% [14] 302(1.1%) 302(1.1%) filter ...t/collects/racket/private/list.rkt:256:2 -------------------------------------------------------------------------- setup-alt-simplified [9] 100.0% [15] 292(1.0%) 0(0.0%) simplify-alt ...s/herbie/develop/src/glue.rkt:76:0 ??? [56] 100.0% -------------------------------------------------------------------------- run-iter! [10] 100.0% [16] 18228(65.4%) 0(0.0%) simplify! ...herbie/develop/src/mainloop.rkt:155:0 for-loop [22] 100.0% -------------------------------------------------------------------------- for-loop [11] 100.0% [17] 15826(56.8%) 358(1.3%) for-loop ...e/develop/src/core/simplify.rkt:148:10 merge-egraph-nodes! [23] 49.6% mk-enode! [31] 18.9% loop! [65] 14.8% substitute-e [25] 14.5% -------------------------------------------------------------------------- for-loop [11] 24.4% for-loop [12] 30.5% for-loop [33] 45.1% [18] 2974(10.7%) 292(1.0%) match-e ...herbie/develop/src/core/ematch.rkt:46:0 for-loop [24] 66.1% for-loop [33] 11.3% ??? [26] 8.0% list-cartesian-product [35] 5.6% variable? [27] 4.0% -------------------------------------------------------------------------- run-iter! [10] 100.0% [19] 674(2.4%) 0(0.0%) finalize-iter! ...e/develop/src/mainloop.rkt:169:0 ??? [26] 100.0% -------------------------------------------------------------------------- for-loop [13] 100.0% [20] 332(1.2%) 332(1.2%) for-loop ...e/develop/src/core/simplify.rkt:217:13 -------------------------------------------------------------------------- for-loop [13] 100.0% [21] 310(1.1%) 0(0.0%) argmin ...re/racket/collects/racket/list.rkt:743:0 for-loop [28] 100.0% -------------------------------------------------------------------------- simplify! [16] 100.0% [22] 18228(65.4%) 0(0.0%) for-loop .../herbie/develop/src/mainloop.rkt:159:6 ??? [29] 100.0% -------------------------------------------------------------------------- merge-egraph-nodes! [23] 7.2% for-loop [32] 13.6% for-loop [17] 79.2% [23] 7842(28.1%) 0(0.0%) merge-egraph-nodes! ...p/src/core/egraph.rkt:153:0 update-leader! [30] 49.1% for-loop [32] 21.9% loop! [65] 13.5% for-loop [36] 8.4% merge-egraph-nodes! [23] 7.2% -------------------------------------------------------------------------- match-e [18] 100.0% [24] 2638(9.5%) 612(2.2%) for-loop ...rbie/develop/src/core/ematch.rkt:59:11 for-loop [33] 76.4% list-cartesian-product [35] 6.1% -------------------------------------------------------------------------- for-loop [17] 100.0% [25] 2294(8.2%) 326(1.2%) substitute-e ...e/develop/src/core/ematch.rkt:71:0 mk-enode! [31] 85.8% -------------------------------------------------------------------------- finalize-iter! [19] 48.4% match-e [18] 51.6% [26] 1392(5.0%) 718(2.6%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [34] 48.4% -------------------------------------------------------------------------- match-e [18] 100.0% [27] 360(1.3%) 360(1.3%) variable? ...e/develop/src/syntax/syntax.rkt:665:0 -------------------------------------------------------------------------- argmin [21] 100.0% [28] 310(1.1%) 0(0.0%) for-loop .../herbie/develop/src/programs.rkt:210:2 ??? [56] 100.0% -------------------------------------------------------------------------- for-loop [22] 21.8% run [5] 33.4% [29] 27860(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk16 [1] 33.4% ??? [56] 32.2% run-improve50 [3] 24.1% prepare-points [39] 7.9% loop [40] 2.4% -------------------------------------------------------------------------- for-loop [11] 17.8% merge-egraph-nodes! [23] 82.2% [30] 5786(20.8%) 0(0.0%) update-leader! ...evelop/src/core/egraph.rkt:218:0 for-loop [37] 100.0% -------------------------------------------------------------------------- substitute-e [25] 39.7% for-loop [17] 60.3% [31] 4952(17.8%) 0(0.0%) mk-enode! ...bie/develop/src/core/egraph.rkt:102:0 new-enode [38] 100.0% -------------------------------------------------------------------------- merge-egraph-nodes! [23] 100.0% [32] 2784(10.0%) 0(0.0%) for-loop ...bie/develop/src/core/egraph.rkt:201:10 merge-egraph-nodes! [23] 76.9% loop! [65] 23.1% -------------------------------------------------------------------------- match-e [18] 12.6% for-loop [24] 87.4% [33] 2662(9.6%) 336(1.2%) for-loop ...rbie/develop/src/core/ematch.rkt:65:37 match-e [18] 87.4% -------------------------------------------------------------------------- ??? [26] 100.0% [34] 674(2.4%) 0(0.0%) for-loop ...ie/develop/src/core/alt-table.rkt:51:2 atab-add-altn [41] 100.0% -------------------------------------------------------------------------- list-cartesian-product [35] 24.5% for-loop [24] 24.5% match-e [18] 50.9% [35] 656(2.4%) 322(1.2%) list-cartesian-product ...src/core/ematch.rkt:20:0 for-loop [42] 50.9% list-cartesian-product [35] 24.5% -------------------------------------------------------------------------- merge-egraph-nodes! [23] 100.0% [36] 656(2.4%) 0(0.0%) for-loop ...rbie/develop/src/core/egraph.rkt:233:6 update-en-expr [72] 100.0% -------------------------------------------------------------------------- update-leader! [30] 100.0% [37] 5786(20.8%) 338(1.2%) for-loop ...rbie/develop/src/core/egraph.rkt:223:6 for-loop [43] 94.2% -------------------------------------------------------------------------- mk-enode! [31] 100.0% [38] 4952(17.8%) 0(0.0%) new-enode ...erbie/develop/src/core/enode.rkt:97:0 type-of-enode-expr [44] 100.0% -------------------------------------------------------------------------- ??? [29] 100.0% [39] 4404(15.8%) 0(0.0%) prepare-points ...bie/develop/src/points.rkt:214:0 make-exacts* [52] 33.2% loop [45] 31.0% loop [53] 27.7% for-loop [46] 8.1% -------------------------------------------------------------------------- ??? [29] 100.0% [40] 1362(4.9%) 0(0.0%) loop ...htlies/herbie/develop/src/points.rkt:238:2 loop [45] 49.6% loop [47] 25.6% make-exacts* [52] 24.8% -------------------------------------------------------------------------- for-loop [34] 100.0% [41] 674(2.4%) 0(0.0%) atab-add-altn ...elop/src/core/alt-table.rkt:208:0 best-and-tied-at-points [48] 51.3% override-at-pnts [49] 48.7% -------------------------------------------------------------------------- list-cartesian-product [35] 100.0% [42] 334(1.2%) 334(1.2%) for-loop ...erbie/develop/src/core/ematch.rkt:24:8 -------------------------------------------------------------------------- for-loop [37] 100.0% [43] 5448(19.6%) 0(0.0%) for-loop ...rbie/develop/src/core/egraph.rkt:224:8 hash-update! [50] 100.0% -------------------------------------------------------------------------- new-enode [38] 100.0% [44] 4952(17.8%) 332(1.2%) type-of-enode-expr ...elop/src/core/enode.rkt:68:0 get-sigs [51] 93.3% -------------------------------------------------------------------------- loop [40] 33.1% prepare-points [39] 66.9% [45] 2040(7.3%) 0(0.0%) loop ...htlies/herbie/develop/src/points.rkt:158:2 make-exacts* [52] 68.9% loop [53] 31.1% -------------------------------------------------------------------------- prepare-points [39] 100.0% [46] 356(1.3%) 0(0.0%) for-loop ...s/herbie/develop/src/points.rkt:255:26 ??? [55] 100.0% -------------------------------------------------------------------------- loop [40] 0.1% loop [47] 99.9% [47] 348(1.2%) 348(1.2%) loop ...hare/racket/collects/racket/list.rkt:154:2 loop [47] 99.9% -------------------------------------------------------------------------- atab-add-altn [41] 100.0% [48] 346(1.2%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [54] 100.0% -------------------------------------------------------------------------- atab-add-altn [41] 100.0% [49] 328(1.2%) 0(0.0%) override-at-pnts ...p/src/core/alt-table.rkt:145:0 errors [54] 100.0% -------------------------------------------------------------------------- for-loop [43] 100.0% [50] 5448(19.6%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [58] 100.0% -------------------------------------------------------------------------- type-of-enode-expr [44] 100.0% [51] 4620(16.6%) 0(0.0%) get-sigs .../herbie/develop/src/type-check.rkt:5:0 ??? [59] 51.8% ??? [56] 48.2% -------------------------------------------------------------------------- loop [40] 10.5% loop [45] 43.8% prepare-points [39] 45.6% [52] 3208(11.5%) 0(0.0%) make-exacts* ...erbie/develop/src/points.rkt:138:0 loop [57] 100.0% -------------------------------------------------------------------------- loop [45] 34.2% prepare-points [39] 65.8% [53] 1854(6.7%) 0(0.0%) loop ...htlies/herbie/develop/src/points.rkt:141:4 loop [57] 100.0% -------------------------------------------------------------------------- override-at-pnts [49] 48.7% best-and-tied-at-points [48] 51.3% [54] 674(2.4%) 0(0.0%) errors ...lies/herbie/develop/src/points.rkt:271:0 for-loop [60] 100.0% -------------------------------------------------------------------------- for-loop [46] 100.0% [55] 356(1.3%) 0(0.0%) ??? ...ghtlies/herbie/develop/src/points.rkt:230:7 ??? [61] 100.0% -------------------------------------------------------------------------- for-loop [28] 0.5% ??? [56] 0.7% simplify-alt [15] 0.7% get-sigs [51] 3.5% for-loop [62] 47.3% ??? [29] 47.3% [56] 21420(76.9%) 1246(4.5%) ??? ...llects/racket/private/norm-define.rkt:53:83 for-loop [62] 47.3% iterate-egraph!13 [2] 46.8% ??? [67] 1.5% loop [4] 1.3% ??? [56] 0.7% return/no-unsupplied [69] 0.5% -------------------------------------------------------------------------- loop [53] 0.2% make-exacts* [52] 1.1% loop! [65] 18.7% loop [57] 79.9% [57] 8570(30.8%) 322(1.2%) loop ...cket/collects/racket/private/map.rkt:25:19 loop [57] 79.9% loop! [65] 18.7% ??? [64] 1.1% -------------------------------------------------------------------------- hash-update! [50] 100.0% [58] 5448(19.6%) 0(0.0%) ??? ...s/herbie/develop/src/core/egraph.rkt:226:24 for-loop [63] 100.0% -------------------------------------------------------------------------- get-sigs [51] 100.0% [59] 2394(8.6%) 0(0.0%) ??? ...ts/racket/contract/private/arr-i.rkt:804:10 for-loop [66] 57.6% ??? [68] 28.9% get/build-late-neg-projection [95] 13.5% -------------------------------------------------------------------------- errors [54] 100.0% [60] 674(2.4%) 0(0.0%) for-loop ...es/herbie/develop/src/points.rkt:274:4 ??? [64] 100.0% -------------------------------------------------------------------------- ??? [55] 100.0% [61] 356(1.3%) 356(1.3%) ??? ...tract/private/arrow-higher-order.rkt:342:33 -------------------------------------------------------------------------- ??? [56] 100.0% [62] 21128(75.8%) 0(0.0%) for-loop ...ie/develop/src/core/simplify.rkt:66:12 ??? [56] 100.0% -------------------------------------------------------------------------- ??? [58] 100.0% [63] 5448(19.6%) 3278(11.8%) for-loop ...bie/develop/src/core/egraph.rkt:227:26 update-en-expr [72] 39.8% -------------------------------------------------------------------------- for-loop [60] 12.4% loop [57] 87.6% [64] 5414(19.4%) 0(0.0%) ??? ...tlies/herbie/develop/src/programs.rkt:156:4 ??? [70] 58.4% ??? [73] 33.4% ??? [77] 8.2% -------------------------------------------------------------------------- for-loop [32] 10.1% merge-egraph-nodes! [23] 22.1% for-loop [17] 31.1% loop [57] 36.7% [65] 4780(17.2%) 676(2.4%) loop! ...s/herbie/develop/src/core/enode.rkt:192:2 custom-set-union [71] 45.4% loop [57] 36.7% set [74] 10.8% -------------------------------------------------------------------------- ??? [59] 100.0% [66] 1380(5.0%) 0(0.0%) for-loop ...racket/contract/private/hash.rkt:239:6 ??? [88] 100.0% -------------------------------------------------------------------------- ??? [56] 100.0% [67] 956(3.4%) 310(1.1%) ??? ...ects/racket/contract/private/list.rkt:737:4 for-loop [76] 67.6% -------------------------------------------------------------------------- ??? [59] 100.0% [68] 692(2.5%) 0(0.0%) ??? ...ects/racket/contract/private/hash.rkt:217:4 ??? [75] 100.0% -------------------------------------------------------------------------- ??? [56] 100.0% [69] 334(1.2%) 334(1.2%) return/no-unsupplied ...ct/private/arr-i.rkt:533:0 -------------------------------------------------------------------------- ??? [64] 100.0% [70] 3160(11.3%) 742(2.7%) ??? ...acket/collects/racket/private/kw.rkt:444:14 for-loop [79] 32.3% ??? [99] 11.7% ...higher-order.rkt:346:33 [83] 11.4% bf* [84] 10.7% ??? [86] 10.4% -------------------------------------------------------------------------- loop! [65] 100.0% [71] 3070(11.0%) 1798(6.5%) custom-set-union ...et/private/set-types.rkt:168:0 for-loop [80] 31.6% for-loop [87] 9.8% -------------------------------------------------------------------------- for-loop [36] 23.2% for-loop [63] 76.8% [72] 2826(10.1%) 2152(7.7%) update-en-expr ...evelop/src/core/egraph.rkt:212:0 for-loop [82] 23.8% -------------------------------------------------------------------------- ??? [64] 100.0% [73] 1810(6.5%) 0(0.0%) ??? ...contract/private/../../private/kw.rkt:761:9 real->bigfloat [78] 100.0% -------------------------------------------------------------------------- loop! [65] 100.0% [74] 1034(3.7%) 1034(3.7%) set ...collects/racket/private/set-types.rkt:981:0 -------------------------------------------------------------------------- ??? [68] 100.0% [75] 692(2.5%) 0(0.0%) ??? ...ects/racket/contract/private/list.rkt:169:2 ??? [81] 100.0% -------------------------------------------------------------------------- ??? [67] 100.0% [76] 646(2.3%) 312(1.1%) for-loop ...acket/contract/private/list.rkt:743:12 ??? [85] 51.7% -------------------------------------------------------------------------- ??? [64] 100.0% [77] 444(1.6%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:145:21 ??? [98] 100.0% -------------------------------------------------------------------------- ??? [73] 100.0% [78] 1810(6.5%) 1810(6.5%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 -------------------------------------------------------------------------- ??? [70] 100.0% [79] 1022(3.7%) 1022(3.7%) for-loop ...ie/develop/src/syntax/syntax.rkt:531:2 -------------------------------------------------------------------------- custom-set-union [71] 100.0% [80] 970(3.5%) 0(0.0%) for-loop ...cts/racket/private/set-types.rkt:174:3 for-loop [89] 100.0% -------------------------------------------------------------------------- ??? [75] 100.0% [81] 692(2.5%) 0(0.0%) ??? ...ects/racket/contract/private/list.rkt:678:5 for-loop [90] 100.0% -------------------------------------------------------------------------- update-en-expr [72] 100.0% [82] 674(2.4%) 674(2.4%) for-loop ...rbie/develop/src/core/egraph.rkt:214:6 -------------------------------------------------------------------------- ??? [70] 100.0% [83] 360(1.3%) 0(0.0%) ...higher-order.rkt:346:33 (unknown source) ??? [88] 100.0% -------------------------------------------------------------------------- ??? [70] 100.0% [84] 338(1.2%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [91] 100.0% -------------------------------------------------------------------------- for-loop [76] 100.0% [85] 334(1.2%) 0(0.0%) ??? ...private/unconstrained-domain-arrow.rkt:74:4 make-keyword-procedure [92] 100.0% -------------------------------------------------------------------------- ??? [70] 100.0% [86] 328(1.2%) 0(0.0%) ??? ...herbie/develop/src/syntax/syntax.rkt:156:17 ??? [93] 100.0% -------------------------------------------------------------------------- custom-set-union [71] 100.0% [87] 302(1.1%) 302(1.1%) for-loop ...cts/racket/private/set-types.rkt:152:2 -------------------------------------------------------------------------- ...higher-order.rkt:346:33 [83] 20.7% for-loop [66] 79.3% [88] 1740(6.2%) 360(1.3%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [94] 79.3% -------------------------------------------------------------------------- for-loop [80] 100.0% [89] 970(3.5%) 970(3.5%) for-loop ...cts/racket/private/set-types.rkt:178:5 -------------------------------------------------------------------------- ??? [81] 100.0% [90] 692(2.5%) 0(0.0%) for-loop ...racket/contract/private/list.rkt:680:9 get/build-late-neg-projection [95]100.0% -------------------------------------------------------------------------- bf* [84] 100.0% [91] 338(1.2%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:39:12 bfmul [96] 100.0% -------------------------------------------------------------------------- ??? [85] 100.0% [92] 334(1.2%) 334(1.2%) make-keyword-procedure ...ket/private/kw.rkt:260:4 -------------------------------------------------------------------------- ??? [86] 100.0% [93] 328(1.2%) 0(0.0%) ??? ...racket/collects/racket/private/kw.rkt:761:9 ??? [97] 100.0% -------------------------------------------------------------------------- ??? [88] 100.0% [94] 1380(5.0%) 0(0.0%) ??? ...ects/racket/contract/private/list.rkt:686:7 ??? [98] 74.2% ??? [99] 25.8% -------------------------------------------------------------------------- listof-late-neg-projection [103] 10.6% ??? [102] 10.6% ??? [59] 10.6% for-loop [90] 68.2% [95] 1014(3.6%) 322(1.2%) get/build-late-neg-projection ...te/guts.rkt:691:0 ??? [100] 68.2% ??? [102] 10.6% listof-late-neg-projection [103] 10.6% -------------------------------------------------------------------------- ??? [91] 100.0% [96] 338(1.2%) 0(0.0%) bfmul ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [101] 100.0% -------------------------------------------------------------------------- ??? [93] 100.0% [97] 328(1.2%) 328(1.2%) ??? ...s/racket/contract/private/arr-i.rkt:1233:27 -------------------------------------------------------------------------- ??? [77] 30.2% ??? [94] 69.8% [98] 1468(5.3%) 1468(5.3%) ??? ...ects/racket/contract/private/guts.rkt:644:8 -------------------------------------------------------------------------- ??? [94] 49.0% ??? [70] 51.0% [99] 726(2.6%) 370(1.3%) ??? ...ects/racket/contract/private/prop.rkt:493:4 ??? [105] 49.0% -------------------------------------------------------------------------- get/build-late-neg-projection [95]100.0% [100] 692(2.5%) 0(0.0%) ??? ...cts/racket/contract/private/prop.rkt:314:12 build-compound-type-name [104] 100.0% -------------------------------------------------------------------------- bfmul [96] 100.0% [101] 338(1.2%) 338(1.2%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 -------------------------------------------------------------------------- get/build-late-neg-projection [95]100.0% [102] 322(1.2%) 0(0.0%) ??? ...ects/racket/contract/private/hash.rkt:211:2 get/build-late-neg-projection [95]100.0% -------------------------------------------------------------------------- get/build-late-neg-projection [95]100.0% [103] 322(1.2%) 0(0.0%) listof-late-neg-projection ...ivate/list.rkt:162:0 get/build-late-neg-projection [95]100.0% -------------------------------------------------------------------------- contract-struct-name [106] 50.0% ??? [100] 50.0% [104] 692(2.5%) 360(1.3%) build-compound-type-name ...private/guts.rkt:448:0 contract-struct-name [106] 74.0% -------------------------------------------------------------------------- ??? [99] 100.0% [105] 356(1.3%) 0(0.0%) ??? ...lects/racket/contract/private/orc.rkt:83:14 ??? [107] 100.0% -------------------------------------------------------------------------- build-compound-type-name [104] 100.0% [106] 692(2.5%) 332(1.2%) contract-struct-name ...ract/private/prop.rkt:89:0 build-compound-type-name [104] 76.0% -------------------------------------------------------------------------- ??? [105] 100.0% [107] 356(1.3%) 356(1.3%) ??? ...ects/racket/contract/private/list.rkt:141:5 --------------------------------------------------------------------------