Profiling results ----------------- Total cpu time observed: 33406ms (out of 34088ms) Number of samples taken: 147 (once every 227ms) (Hiding functions with self<1.0% and local<2.0%: 3 of 105 hidden) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= ??? [33] 100.0% [1] 32588(97.6%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [6] 100.0% ----------------------------------------------------------------------- ??? [33] 100.0% [2] 15576(46.6%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [7] 94.7% finalize-table! [10] 4.0% setup-prog [12] 1.3% ----------------------------------------------------------------------- simplify-alt [17] 1.5% ??? [33] 98.5% [3] 13524(40.5%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 simplify-expr [8] 60.2% for-loop [9] 23.4% iterate-egraph!5 [14] 16.5% ----------------------------------------------------------------------- map [77] 35.4% loop [79] 64.6% [4] 622(1.9%) 0(0.0%) ??? ...ket/collects/racket/private/list.rkt:323:18 hash-ref! [69] 48.6% f6 [75] 35.4% map [77] 16.1% ----------------------------------------------------------------------- f6 [75] 100.0% [5] 220(0.7%) 0(0.0%) taylor-invert .../herbie/src/core/taylor.rkt:312:0 simplify [11] 100.0% ----------------------------------------------------------------------- profile-thunk14 [1] 100.0% [6] 32588(97.6%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [33] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [7] 14748(44.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [13] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [8] 8138(24.4%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [14] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [9] 3158(9.5%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [14] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [10] 628(1.9%) 0(0.0%) finalize-table! ...k/herbie/src/mainloop.rkt:264:0 post-process [15] 100.0% ----------------------------------------------------------------------- hash-ref! [69] 47.6% taylor-invert [5] 52.4% [11] 420(1.3%) 200(0.6%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 simplify-node [16] 52.4% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [12] 200(0.6%) 0(0.0%) setup-prog /home/ztatlock/herbie/src/glue.rkt:46:0 simplify-alt [17] 100.0% ----------------------------------------------------------------------- for-loop [7] 100.0% [13] 14748(44.1%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [18] 90.3% finalize-iter! [21] 4.1% gen-series! [22] 2.8% choose-best-alt! [24] 1.4% localize-error [20] 1.4% ----------------------------------------------------------------------- simplify [3] 16.5% for-loop [9] 23.4% simplify-expr [8] 60.2% [14] 13524(40.5%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [19] 98.5% ----------------------------------------------------------------------- finalize-table! [10] 100.0% [15] 628(1.9%) 0(0.0%) post-process .../ztatlock/herbie/src/glue.rkt:95:0 localize-error [20] 65.0% ??? [28] 35.0% ----------------------------------------------------------------------- simplify [11] 100.0% [16] 220(0.7%) 0(0.0%) simplify-node ...k/herbie/src/core/reduce.rkt:41:0 combine-aterms [23] 100.0% ----------------------------------------------------------------------- setup-prog [12] 100.0% [17] 200(0.6%) 0(0.0%) simplify-alt .../ztatlock/herbie/src/glue.rkt:84:0 simplify [3] 100.0% ----------------------------------------------------------------------- run-iter! [13] 100.0% [18] 13324(39.9%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [25] 100.0% ----------------------------------------------------------------------- iterate-egraph!5 [14] 100.0% [19] 13324(39.9%) 0(0.0%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [26] 67.2% loop [27] 26.4% apply-match [34] 3.3% loop [30] 3.0% ----------------------------------------------------------------------- run-iter! [13] 32.9% post-process [15] 67.1% [20] 608(1.8%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [69] 100.0% ----------------------------------------------------------------------- run-iter! [13] 100.0% [21] 604(1.8%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [28] 100.0% ----------------------------------------------------------------------- run-iter! [13] 100.0% [22] 420(1.3%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [29] 100.0% ----------------------------------------------------------------------- simplify-node [16] 100.0% [23] 220(0.7%) 0(0.0%) combine-aterms ...herbie/src/core/reduce.rkt:174:0 for-loop [31] 100.0% ----------------------------------------------------------------------- run-iter! [13] 100.0% [24] 200(0.6%) 0(0.0%) choose-best-alt! .../herbie/src/mainloop.rkt:120:0 debug-print [32] 100.0% ----------------------------------------------------------------------- simplify! [18] 100.0% [25] 13324(39.9%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [33] 100.0% ----------------------------------------------------------------------- for-loop [26] 50.0% one-iter [19] 50.0% [26] 8958(26.8%) 2452(7.3%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [26] 50.0% match-e [40] 35.2% ??? [65] 1.1% ----------------------------------------------------------------------- one-iter [19] 100.0% [27] 3522(10.5%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [34] 100.0% ----------------------------------------------------------------------- post-process [15] 26.7% finalize-iter! [21] 73.3% [28] 824(2.5%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [35] 73.3% atab-add-altns [37] 26.7% ----------------------------------------------------------------------- gen-series! [22] 100.0% [29] 420(1.3%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [36] 100.0% ----------------------------------------------------------------------- one-iter [19] 100.0% [30] 404(1.2%) 404(1.2%) loop ...ket/collects/racket/private/list.rkt:264:4 ----------------------------------------------------------------------- combine-aterms [23] 100.0% [31] 220(0.7%) 0(0.0%) for-loop ...tlock/herbie/src/core/reduce.rkt:176:4 hash-ref! [69] 100.0% ----------------------------------------------------------------------- choose-best-alt! [24] 100.0% [32] 200(0.6%) 0(0.0%) debug-print ...ztatlock/herbie/src/debug.rkt:107:0 for-loop [38] 100.0% ----------------------------------------------------------------------- for-loop [25] 13.6% run [6] 42.4% [33] 33406(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 42.4% loop [39] 27.0% run-improve58 [2] 17.0% simplify [3] 13.6% ----------------------------------------------------------------------- one-iter [19] 11.1% loop [27] 88.9% [34] 3962(11.9%) 424(1.3%) apply-match .../herbie/src/core/simplify.rkt:122:2 match-e [40] 31.5% mk-enode! [49] 20.7% merge-egraph-nodes! [42] 10.7% for-loop [44] 10.1% loop! [50] 6.1% substitute-e [45] 5.1% update-leader! [52] 5.1% ----------------------------------------------------------------------- ??? [28] 100.0% [35] 604(1.8%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [41] 100.0% ----------------------------------------------------------------------- for-loop [29] 100.0% [36] 420(1.3%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [43] 100.0% ----------------------------------------------------------------------- ??? [28] 100.0% [37] 220(0.7%) 0(0.0%) atab-add-altns ...rbie/src/core/alt-table.rkt:50:0 atab-add-altn [41] 100.0% ----------------------------------------------------------------------- debug-print [32] 100.0% [38] 200(0.6%) 0(0.0%) for-loop /home/ztatlock/herbie/src/debug.rkt:113:2 write-proc [46] 100.0% ----------------------------------------------------------------------- ??? [33] 100.0% [39] 17830(53.4%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 make-exacts* [55] 53.3% loop [47] 46.7% ----------------------------------------------------------------------- for-loop [57] 11.6% apply-match [34] 12.4% for-loop [26] 76.0% [40] 7554(22.6%) 2736(8.2%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [48] 42.6% for-loop [57] 12.1% loop [79] 6.8% custom-in-set [54] 2.6% list-cartesian-product [58] 2.6% ----------------------------------------------------------------------- atab-add-altns [37] 26.7% for-loop [35] 73.3% [41] 824(2.5%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [51] 75.5% loop [79] 24.5% ----------------------------------------------------------------------- apply-match [34] 100.0% [42] 422(1.3%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [52] 52.6% loop! [50] 47.4% ----------------------------------------------------------------------- taylor-alt [36] 100.0% [43] 420(1.3%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [53] 100.0% ----------------------------------------------------------------------- apply-match [34] 100.0% [44] 402(1.2%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 loop! [50] 100.0% ----------------------------------------------------------------------- apply-match [34] 100.0% [45] 202(0.6%) 0(0.0%) substitute-e ...ck/herbie/src/core/ematch.rkt:71:0 mk-enode! [49] 100.0% ----------------------------------------------------------------------- for-loop [38] 100.0% [46] 200(0.6%) 200(0.6%) write-proc ...lock/herbie/src/alternative.rkt:22:9 ----------------------------------------------------------------------- loop [39] 100.0% [47] 8328(24.9%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [56] 68.6% make-exacts* [55] 31.4% ----------------------------------------------------------------------- match-e [40] 100.0% [48] 3976(11.9%) 1686(5.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [57] 36.8% list-cartesian-product [58] 15.2% loop [79] 5.6% ----------------------------------------------------------------------- substitute-e [45] 19.7% apply-match [34] 80.3% [49] 1024(3.1%) 822(2.5%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 hash-has-key? [63] 19.7% ----------------------------------------------------------------------- merge-egraph-nodes! [42] 23.8% apply-match [34] 28.5% for-loop [44] 47.7% [50] 842(2.5%) 0(0.0%) loop! .../ztatlock/herbie/src/core/enode.rkt:163:2 custom-set-union [59] 76.2% loop [79] 23.8% ----------------------------------------------------------------------- atab-add-altn [41] 100.0% [51] 622(1.9%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [60] 100.0% ----------------------------------------------------------------------- apply-match [34] 47.6% merge-egraph-nodes! [42] 52.4% [52] 424(1.3%) 0(0.0%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [61] 100.0% ----------------------------------------------------------------------- for-loop [43] 41.3% location-do [53] 58.7% [53] 420(1.3%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 location-do [53] 58.7% approximate9 [62] 41.3% ----------------------------------------------------------------------- match-e [40] 100.0% [54] 200(0.6%) 200(0.6%) custom-in-set ...acket/private/set-types.rkt:578:0 ----------------------------------------------------------------------- loop [47] 21.6% loop [39] 78.4% [55] 12118(36.3%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [77] 53.5% loop [79] 46.5% ----------------------------------------------------------------------- loop [47] 100.0% [56] 5712(17.1%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [77] 100.0% ----------------------------------------------------------------------- for-loop [48] 49.6% match-e [40] 50.4% [57] 2732(8.2%) 620(1.9%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [40] 61.2% ??? [65] 16.1% ----------------------------------------------------------------------- match-e [40] 24.9% for-loop [48] 75.1% [58] 804(2.4%) 804(2.4%) list-cartesian-product ...src/core/ematch.rkt:20:0 ----------------------------------------------------------------------- loop! [50] 100.0% [59] 642(1.9%) 0(0.0%) custom-set-union ...et/private/set-types.rkt:168:0 for-loop [64] 100.0% ----------------------------------------------------------------------- best-and-tied-at-points [51] 100.0% [60] 622(1.9%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [66] 100.0% ----------------------------------------------------------------------- update-leader! [52] 100.0% [61] 424(1.3%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [67] 100.0% ----------------------------------------------------------------------- location-do [53] 100.0% [62] 420(1.3%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 f6 [75] 52.4% loop [68] 47.6% ----------------------------------------------------------------------- mk-enode! [49] 100.0% [63] 202(0.6%) 202(0.6%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ----------------------------------------------------------------------- custom-set-union [59] 100.0% [64] 642(1.9%) 440(1.3%) for-loop ...cts/racket/private/set-types.rkt:174:3 for-loop [71] 31.5% ----------------------------------------------------------------------- for-loop [26] 31.2% for-loop [57] 68.8% [65] 640(1.9%) 440(1.3%) ??? /home/ztatlock/herbie/src/core/ematch.rkt:50:5 for-loop [72] 31.2% ----------------------------------------------------------------------- errors [60] 100.0% [66] 622(1.9%) 220(0.7%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [80] 64.6% ----------------------------------------------------------------------- for-loop [61] 100.0% [67] 424(1.3%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [70] 100.0% ----------------------------------------------------------------------- approximate9 [62] 100.0% [68] 200(0.6%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [69] 100.0% ----------------------------------------------------------------------- ??? [76] 9.7% loop [68] 9.7% ??? [4] 19.6% for-loop [31] 21.4% localize-error [20] 39.6% [69] 1028(3.1%) 220(0.7%) hash-ref! ...racket/private/more-scheme.rkt:373:13 parse-loop12 [73] 49.4% f6 [75] 9.7% ??? [76] 9.7% simplify [11] 9.7% ----------------------------------------------------------------------- for-loop [67] 100.0% [70] 424(1.3%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [74] 100.0% ----------------------------------------------------------------------- for-loop [64] 100.0% [71] 202(0.6%) 202(0.6%) for-loop ...cts/racket/private/set-types.rkt:178:5 ----------------------------------------------------------------------- ??? [65] 100.0% [72] 200(0.6%) 200(0.6%) for-loop ...atlock/herbie/src/core/ematch.rkt:51:7 ----------------------------------------------------------------------- hash-ref! [69] 100.0% [73] 608(1.8%) 0(0.0%) parse-loop12 ...s/racket/match/compiler.rkt:410:15 loop [79] 100.0% ----------------------------------------------------------------------- hash-update! [70] 100.0% [74] 424(1.3%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [78] 100.0% ----------------------------------------------------------------------- map [77] 17.5% ??? [4] 17.5% approximate9 [62] 17.5% hash-ref! [69] 47.6% [75] 420(1.3%) 0(0.0%) f6 ...et/collects/racket/match/compiler.rkt:499:40 map [77] 82.5% taylor-invert [5] 17.5% ----------------------------------------------------------------------- hash-ref! [69] 100.0% [76] 200(0.6%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [69] 100.0% ----------------------------------------------------------------------- ??? [4] 0.8% f6 [75] 2.5% loop [56] 45.3% make-exacts* [55] 51.4% [77] 12614(37.8%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [79] 97.5% ??? [4] 0.9% f6 [75] 0.9% ->flonum [85] 0.8% ----------------------------------------------------------------------- ??? [74] 100.0% [78] 424(1.3%) 424(1.3%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ----------------------------------------------------------------------- make-exacts* [55] 0.2% parse-loop12 [73] 0.3% atab-add-altn [41] 0.5% loop! [50] 1.0% for-loop [48] 1.1% map [77] 1.3% match-e [40] 2.5% loop [79] 93.1% [79] 19888(59.5%) 846(2.5%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [79] 93.1% ??? [80] 1.4% loop [81] 0.5% foldl [82] 0.3% ??? [4] 0.2% bffma [87] 0.1% ??? [92] 0.0% ->flonum [85] 0.0% ----------------------------------------------------------------------- for-loop [66] 2.2% loop [79] 97.8% [80] 17982(53.8%) 326(1.0%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [83] 81.2% real->bigfloat [84] 14.7% ->flonum [85] 2.2% ----------------------------------------------------------------------- loop [79] 2.4% loop [81] 97.6% [81] 202(0.6%) 202(0.6%) loop ...ket/collects/racket/private/list.rkt:82:16 loop [81] 97.6% ----------------------------------------------------------------------- loop [79] 100.0% [82] 202(0.6%) 0(0.0%) foldl ...et/collects/racket/private/list.rkt:229:4 merge2 [86] 100.0% ----------------------------------------------------------------------- ??? [80] 100.0% [83] 14602(43.7%) 0(0.0%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [92] 81.2% bffma [87] 10.9% ...higher-order.rkt:373:33 [88] 6.3% ...ow-val-first.rkt:357:18 [91] 1.6% ----------------------------------------------------------------------- ??? [80] 100.0% [84] 2652(7.9%) 2652(7.9%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ----------------------------------------------------------------------- map [77] 23.5% loop [79] 29.3% ??? [80] 47.2% [85] 852(2.6%) 200(0.6%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [89] 47.2% ??? [97] 29.3% ----------------------------------------------------------------------- foldl [82] 100.0% [86] 202(0.6%) 202(0.6%) merge2 ...ztatlock/herbie/src/core/ematch.rkt:31:0 ----------------------------------------------------------------------- loop [79] 11.3% ??? [83] 88.7% [87] 1790(5.4%) 0(0.0%) bffma ...atlock/herbie/src/syntax/syntax.rkt:122:0 bf* [90] 87.0% ...ow-val-first.rkt:357:18 [91] 13.0% ----------------------------------------------------------------------- ??? [83] 100.0% [88] 914(2.7%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [93] 78.3% ??? [95] 21.7% ----------------------------------------------------------------------- ->flonum [85] 100.0% [89] 402(1.2%) 402(1.2%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ----------------------------------------------------------------------- bffma [87] 100.0% [90] 1558(4.7%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [92] 100.0% ----------------------------------------------------------------------- bffma [87] 49.2% ??? [83] 50.8% [91] 472(1.4%) 0(0.0%) ...ow-val-first.rkt:357:18 (unknown source) ??? [93] 100.0% ----------------------------------------------------------------------- loop [79] 1.5% bf* [90] 11.4% ??? [83] 87.1% [92] 13624(40.8%) 9192(27.5%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfsub [94] 24.1% ??? [97] 6.8% bfexp [96] 1.6% ----------------------------------------------------------------------- ...ow-val-first.rkt:357:18 [91] 39.7% ...higher-order.rkt:373:33 [88] 60.3% [93] 1188(3.6%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [95] 100.0% ----------------------------------------------------------------------- ??? [92] 100.0% [94] 3286(9.8%) 2574(7.7%) bfsub ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [98] 21.7% ----------------------------------------------------------------------- ...higher-order.rkt:373:33 [88] 14.3% ??? [93] 85.7% [95] 1386(4.1%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [97] 100.0% ----------------------------------------------------------------------- ??? [92] 100.0% [96] 214(0.6%) 0(0.0%) bfexp ...-lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [98] 100.0% ----------------------------------------------------------------------- ->flonum [85] 9.7% ??? [92] 36.3% ??? [95] 54.0% [97] 2568(7.7%) 696(2.1%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ??? [99] 55.8% ??? [100] 17.1% ----------------------------------------------------------------------- bfexp [96] 23.1% bfsub [94] 76.9% [98] 926(2.8%) 926(2.8%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ----------------------------------------------------------------------- ??? [97] 100.0% [99] 1432(4.3%) 460(1.4%) ??? ...llects/racket/contract/combinator.rkt:178:4 any-wrap/traverse [101] 67.9% ----------------------------------------------------------------------- ??? [97] 100.0% [100] 440(1.3%) 200(0.6%) ??? ...ects/racket/contract/private/prop.rkt:489:4 ??? [102] 54.5% ----------------------------------------------------------------------- ??? [99] 100.0% [101] 972(2.9%) 972(2.9%) any-wrap/traverse ...cket/utils/any-wrap.rkt:106:2 ----------------------------------------------------------------------- ??? [100] 100.0% [102] 240(0.7%) 240(0.7%) ??? ...lects/racket/contract/private/orc.rkt:73:14 -----------------------------------------------------------------------