Profiling results ----------------- Total cpu time observed: 39798ms (out of 40184ms) Number of samples taken: 182 (once every 219ms) (Hiding functions with self<1.0% and local<2.0%: 1 of 101 hidden) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= ??? [31] 100.0% [1] 38984(98.0%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [9] 100.0% ----------------------------------------------------------------------- ??? [31] 100.0% [2] 11924(30.0%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [10] 81.3% loop [35] 17.0% get-final-combination [15] 1.7% ----------------------------------------------------------------------- loop [66] 2.6% ??? [31] 97.4% [3] 7578(19.0%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 iterate-egraph!5 [17] 67.8% simplify-expr [11] 32.2% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [4] 1180(3.0%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:197:5 loop [66] 100.0% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [5] 820(2.1%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 parse-loop12 [76] 73.2% f6 [12] 26.8% ----------------------------------------------------------------------- loop [66] 100.0% [6] 418(1.1%) 0(0.0%) ??? ...ket/collects/racket/private/list.rkt:323:18 hash-ref! [70] 100.0% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [7] 402(1.0%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:295:23 for-loop [13] 100.0% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [8] 402(1.0%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:392:23 for-loop [14] 100.0% ----------------------------------------------------------------------- profile-thunk14 [1] 100.0% [9] 38984(98.0%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [31] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [10] 9696(24.4%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [16] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [11] 2440(6.1%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [17] 100.0% ----------------------------------------------------------------------- parse-loop12 [76] 24.0% simplify [5] 26.2% hash-ref! [70] 49.8% [12] 840(2.1%) 0(0.0%) f6 ...et/collects/racket/match/compiler.rkt:499:40 map [60] 100.0% ----------------------------------------------------------------------- ??? [7] 100.0% [13] 402(1.0%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:298:27 hash-ref! [70] 100.0% ----------------------------------------------------------------------- ??? [8] 100.0% [14] 402(1.0%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:396:33 for-loop [18] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [15] 200(0.5%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 extract-alt [19] 100.0% ----------------------------------------------------------------------- for-loop [10] 100.0% [16] 9696(24.4%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [20] 76.1% finalize-iter! [22] 11.1% gen-series! [24] 8.5% localize-error [25] 4.3% ----------------------------------------------------------------------- simplify-expr [11] 32.2% simplify [3] 67.8% [17] 7578(19.0%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [21] 89.0% map-enodes [23] 11.0% ----------------------------------------------------------------------- for-loop [14] 100.0% [18] 402(1.0%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:398:39 hash-ref! [70] 100.0% ----------------------------------------------------------------------- get-final-combination [15] 100.0% [19] 200(0.5%) 0(0.0%) extract-alt ...e/ztatlock/herbie/src/glue.rkt:57:0 loop [66] 100.0% ----------------------------------------------------------------------- run-iter! [16] 100.0% [20] 7378(18.5%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [26] 100.0% ----------------------------------------------------------------------- iterate-egraph!5 [17] 100.0% [21] 6744(16.9%) 0(0.0%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [27] 51.7% loop [28] 39.0% apply-match [32] 9.2% ----------------------------------------------------------------------- run-iter! [16] 100.0% [22] 1080(2.7%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [29] 100.0% ----------------------------------------------------------------------- iterate-egraph!5 [17] 100.0% [23] 834(2.1%) 0(0.0%) map-enodes ...ock/herbie/src/core/egraph.rkt:139:0 loop [66] 76.0% for-loop [71] 24.0% ----------------------------------------------------------------------- run-iter! [16] 100.0% [24] 820(2.1%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [30] 100.0% ----------------------------------------------------------------------- run-iter! [16] 100.0% [25] 418(1.1%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [70] 100.0% ----------------------------------------------------------------------- simplify! [20] 100.0% [26] 7378(18.5%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [31] 100.0% ----------------------------------------------------------------------- for-loop [27] 46.8% one-iter [21] 53.2% [27] 3490(8.8%) 842(2.1%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [27] 46.8% match-e [36] 37.9% ----------------------------------------------------------------------- one-iter [21] 100.0% [28] 2632(6.6%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [32] 100.0% ----------------------------------------------------------------------- finalize-iter! [22] 100.0% [29] 1080(2.7%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [33] 100.0% ----------------------------------------------------------------------- gen-series! [24] 100.0% [30] 820(2.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [34] 100.0% ----------------------------------------------------------------------- for-loop [26] 6.3% run [9] 46.2% [31] 39576(99.4%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 46.2% loop [35] 35.4% run-improve58 [2] 12.1% simplify [3] 6.3% ----------------------------------------------------------------------- one-iter [21] 19.1% loop [28] 80.9% [32] 3254(8.2%) 0(0.0%) apply-match .../herbie/src/core/simplify.rkt:122:2 match-e [36] 39.5% for-loop [39] 20.3% merge-egraph-nodes! [44] 14.3% reduce-to-single! [40] 6.8% loop! [74] 6.8% substitute-e [41] 6.2% mk-enode! [47] 6.1% ----------------------------------------------------------------------- ??? [29] 100.0% [33] 1080(2.7%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [37] 100.0% ----------------------------------------------------------------------- for-loop [30] 100.0% [34] 820(2.1%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [38] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 6.8% ??? [31] 93.2% [35] 29680(74.6%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 loop [42] 41.7% make-exacts* [50] 40.8% loop [51] 17.5% ----------------------------------------------------------------------- for-loop [52] 12.3% apply-match [32] 25.7% for-loop [27] 62.0% [36] 3932(9.9%) 2044(5.1%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [43] 52.4% list-cartesian-product [56] 2.5% ----------------------------------------------------------------------- for-loop [33] 100.0% [37] 1080(2.7%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [45] 80.2% loop [49] 19.8% ----------------------------------------------------------------------- taylor-alt [34] 100.0% [38] 820(2.1%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [46] 100.0% ----------------------------------------------------------------------- apply-match [32] 100.0% [39] 662(1.7%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 merge-egraph-nodes! [44] 100.0% ----------------------------------------------------------------------- apply-match [32] 100.0% [40] 222(0.6%) 0(0.0%) reduce-to-single! ...bie/src/core/egraph.rkt:324:0 for-loop [48] 100.0% ----------------------------------------------------------------------- apply-match [32] 100.0% [41] 202(0.5%) 0(0.0%) substitute-e ...ck/herbie/src/core/ematch.rkt:71:0 mk-enode! [47] 100.0% ----------------------------------------------------------------------- loop [35] 100.0% [42] 12384(31.1%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [51] 48.0% make-exacts* [50] 47.7% eval-prog [61] 4.4% ----------------------------------------------------------------------- match-e [36] 100.0% [43] 2350(5.9%) 824(2.1%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [52] 32.9% loop [66] 18.0% list-cartesian-product [56] 9.4% foldl [59] 4.7% ----------------------------------------------------------------------- for-loop [57] 10.7% apply-match [32] 30.5% for-loop [39] 58.8% [44] 1126(2.8%) 220(0.6%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [55] 50.0% for-loop [58] 19.7% for-loop [57] 10.7% ----------------------------------------------------------------------- atab-add-altn [37] 100.0% [45] 866(2.2%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [53] 100.0% ----------------------------------------------------------------------- for-loop [38] 45.2% location-do [46] 54.8% [46] 820(2.1%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 location-do [46] 54.8% approximate9 [54] 45.2% ----------------------------------------------------------------------- apply-match [32] 49.8% substitute-e [41] 50.2% [47] 402(1.0%) 402(1.0%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 ----------------------------------------------------------------------- reduce-to-single! [40] 100.0% [48] 222(0.6%) 222(0.6%) for-loop ...tlock/herbie/src/core/egraph.rkt:325:8 ----------------------------------------------------------------------- atab-add-altn [37] 100.0% [49] 214(0.5%) 0(0.0%) loop ...atlock/herbie/src/core/alt-table.rkt:182:2 loop [66] 100.0% ----------------------------------------------------------------------- loop [42] 32.8% loop [35] 67.2% [50] 18002(45.2%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [60] 52.0% loop [66] 44.4% eval-prog [61] 3.5% ----------------------------------------------------------------------- loop [35] 46.7% loop [42] 53.3% [51] 11136(28.0%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [60] 100.0% ----------------------------------------------------------------------- for-loop [43] 100.0% [52] 884(2.2%) 0(0.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [36] 100.0% ----------------------------------------------------------------------- best-and-tied-at-points [45] 100.0% [53] 866(2.2%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 eval-prog [61] 51.3% for-loop [64] 48.7% ----------------------------------------------------------------------- location-do [46] 100.0% [54] 820(2.1%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [62] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [44] 100.0% [55] 684(1.7%) 220(0.6%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [63] 67.8% ----------------------------------------------------------------------- match-e [36] 23.8% for-loop [43] 26.2% list-cartesian-product [56] 50.0% [56] 420(1.1%) 200(0.5%) list-cartesian-product ...src/core/ematch.rkt:20:0 list-cartesian-product [56] 50.0% for-loop [65] 26.2% ----------------------------------------------------------------------- merge-egraph-nodes! [44] 100.0% [57] 242(0.6%) 0(0.0%) for-loop ...lock/herbie/src/core/egraph.rkt:200:10 merge-egraph-nodes! [44] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [44] 100.0% [58] 222(0.6%) 222(0.6%) for-loop ...tlock/herbie/src/core/egraph.rkt:232:6 ----------------------------------------------------------------------- for-loop [43] 100.0% [59] 222(0.6%) 222(0.6%) foldl ...et/collects/racket/private/list.rkt:229:4 ----------------------------------------------------------------------- parse-loop12 [76] 0.5% f6 [12] 3.4% make-exacts* [50] 43.9% loop [51] 52.2% [60] 21340(53.6%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [66] 98.0% parse-loop12 [76] 2.0% ----------------------------------------------------------------------- errors [53] 27.3% loop [42] 33.4% make-exacts* [50] 39.3% [61] 1624(4.1%) 202(0.5%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 hash-ref! [70] 72.7% go [68] 14.9% ----------------------------------------------------------------------- approximate9 [54] 100.0% [62] 820(2.1%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [70] 100.0% ----------------------------------------------------------------------- update-leader! [55] 100.0% [63] 464(1.2%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [67] 100.0% ----------------------------------------------------------------------- errors [53] 100.0% [64] 422(1.1%) 222(0.6%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [69] 47.4% ----------------------------------------------------------------------- list-cartesian-product [56] 100.0% [65] 220(0.6%) 220(0.6%) for-loop ...atlock/herbie/src/core/ematch.rkt:24:8 ----------------------------------------------------------------------- loop [49] 0.0% make-exacts* [50] 0.4% extract-alt [19] 0.6% parse-loop12 [76] 0.7% loop! [74] 0.7% for-loop [43] 1.0% map-enodes [23] 1.0% map [60] 2.5% ??? [4] 3.7% loop [66] 89.4% [66] 31988(80.4%) 1044(2.6%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [66] 89.4% hash-ref! [70] 3.7% ??? [69] 2.5% for-loop [71] 1.0% loop! [74] 0.7% simplify [3] 0.6% ??? [6] 0.4% ??? [86] 0.4% parse-loop12 [76] 0.3% ->flonum [73] 0.0% ----------------------------------------------------------------------- for-loop [63] 100.0% [67] 464(1.2%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [72] 100.0% ----------------------------------------------------------------------- eval-prog [61] 100.0% [68] 242(0.6%) 242(0.6%) go .../collects/racket/private/qq-and-or.rkt:50:20 ----------------------------------------------------------------------- for-loop [64] 0.7% loop [66] 99.3% [69] 28072(70.5%) 476(1.2%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [75] 95.2% real->bigfloat [81] 1.5% ??? [96] 0.8% ----------------------------------------------------------------------- for-loop [18] 3.0% for-loop [13] 4.4% ??? [6] 8.6% localize-error [25] 8.6% ??? [78] 8.8% ??? [79] 8.8% loop [62] 8.8% eval-prog [61] 22.2% loop [66] 26.6% [70] 2418(6.1%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [4] 26.6% bigfloat-hash [77] 22.2% ??? [79] 8.8% ??? [78] 8.8% simplify [5] 8.8% parse-loop12 [76] 8.6% f6 [12] 8.6% ??? [7] 4.4% ??? [8] 3.0% ----------------------------------------------------------------------- map-enodes [23] 24.0% loop [66] 76.0% [71] 834(2.1%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:161:2 setfindf [82] 49.4% eval-const-expr [83] 26.6% composed [85] 24.0% ----------------------------------------------------------------------- for-loop [67] 100.0% [72] 464(1.2%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [80] 100.0% ----------------------------------------------------------------------- loop [66] 100.0% [73] 220(0.6%) 0(0.0%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [84] 100.0% ----------------------------------------------------------------------- loop [66] 50.0% apply-match [32] 50.0% [74] 220(0.6%) 220(0.6%) loop! .../ztatlock/herbie/src/core/enode.rkt:163:2 loop [66] 50.0% ----------------------------------------------------------------------- ??? [69] 100.0% [75] 26732(67.2%) 302(0.8%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [86] 94.5% ...higher-order.rkt:369:33 [88] 2.6% ...higher-order.rkt:373:33 [90] 1.7% ----------------------------------------------------------------------- loop [66] 4.0% simplify [5] 13.5% map [60] 14.3% hash-ref! [70] 33.8% parse-loop12 [76] 34.4% [76] 1238(3.1%) 820(2.1%) parse-loop12 ...s/racket/match/compiler.rkt:410:15 loop [66] 37.8% parse-loop12 [76] 34.4% f6 [12] 5.4% map [60] 4.4% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [77] 1180(3.0%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 bfcanonicalize [87] 64.1% sig+exp->bigfloat [91] 35.9% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [78] 820(2.1%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:338:33 hash-ref! [70] 100.0% ----------------------------------------------------------------------- hash-ref! [70] 100.0% [79] 820(2.1%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [70] 100.0% ----------------------------------------------------------------------- hash-update! [72] 100.0% [80] 464(1.2%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [89] 100.0% ----------------------------------------------------------------------- ??? [69] 100.0% [81] 434(1.1%) 434(1.1%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ----------------------------------------------------------------------- for-loop [71] 100.0% [82] 412(1.0%) 200(0.5%) setfindf ...e/ztatlock/herbie/src/common.rkt:173:0 for-loop [92] 51.5% ----------------------------------------------------------------------- for-loop [71] 100.0% [83] 222(0.6%) 222(0.6%) eval-const-expr ...k/herbie/src/programs.rkt:180:0 ----------------------------------------------------------------------- ->flonum [73] 100.0% [84] 220(0.6%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:47:15 ??? [97] 100.0% ----------------------------------------------------------------------- for-loop [71] 100.0% [85] 200(0.5%) 200(0.5%) composed ...ollects/racket/private/list.rkt:321:16 ----------------------------------------------------------------------- loop [66] 1.6% ??? [75] 98.4% [86] 25682(64.5%) 21608(54.3%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfneg [93] 8.4% ??? [98] 5.4% bfdiv [94] 2.1% ----------------------------------------------------------------------- bigfloat-hash [77] 100.0% [87] 756(1.9%) 756(1.9%) bfcanonicalize .../private/bigfloat/mpfr.rkt:155:0 ----------------------------------------------------------------------- ??? [75] 100.0% [88] 706(1.8%) 0(0.0%) ...higher-order.rkt:369:33 (unknown source) ??? [96] 64.6% ??? [95] 35.4% ----------------------------------------------------------------------- ??? [80] 100.0% [89] 464(1.2%) 464(1.2%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ----------------------------------------------------------------------- ??? [75] 100.0% [90] 460(1.2%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [96] 52.6% ??? [95] 47.4% ----------------------------------------------------------------------- bigfloat-hash [77] 100.0% [91] 424(1.1%) 424(1.1%) sig+exp->bigfloat ...ivate/bigfloat/mpfr.rkt:385:0 ----------------------------------------------------------------------- setfindf [82] 100.0% [92] 212(0.5%) 212(0.5%) for-loop ...e/ztatlock/herbie/src/common.rkt:174:2 ----------------------------------------------------------------------- ??? [86] 100.0% [93] 2154(5.4%) 1764(4.4%) bfneg ...-lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [97] 18.1% ----------------------------------------------------------------------- ??? [86] 100.0% [94] 532(1.3%) 180(0.5%) bfdiv ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [97] 66.2% ----------------------------------------------------------------------- ...higher-order.rkt:373:33 [90] 46.6% ...higher-order.rkt:369:33 [88] 53.4% [95] 468(1.2%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [96] 100.0% ----------------------------------------------------------------------- ??? [69] 15.5% ...higher-order.rkt:373:33 [90] 17.5% ...higher-order.rkt:369:33 [88] 33.0% ??? [95] 33.9% [96] 1380(3.5%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [98] 100.0% ----------------------------------------------------------------------- ??? [84] 22.9% bfdiv [94] 36.6% bfneg [93] 40.5% [97] 962(2.4%) 962(2.4%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ----------------------------------------------------------------------- ??? [96] 49.9% ??? [86] 50.1% [98] 2768(7.0%) 668(1.7%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ??? [99] 75.9% ----------------------------------------------------------------------- ??? [98] 100.0% [99] 2100(5.3%) 1110(2.8%) ??? ...llects/racket/contract/combinator.rkt:178:4 any-wrap/traverse [100] 47.1% ----------------------------------------------------------------------- ??? [99] 100.0% [100] 990(2.5%) 990(2.5%) any-wrap/traverse ...cket/utils/any-wrap.rkt:106:2 -----------------------------------------------------------------------