Profiling results ----------------- Total cpu time observed: 325250ms (out of 327540ms) Number of samples taken: 1359 (once every 239ms) (Hiding functions with self<1.0% and local<2.0%: 3 of 100 hidden) ========================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ========================================================================= ??? [31] 100.0% [1] 320386(98.5%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [7] 100.0% ------------------------------------------------------------------------- ??? [31] 100.0% [2] 14552(4.5%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 loop [8] 40.2% get-final-combination [9] 33.7% for-loop [10] 26.1% ------------------------------------------------------------------------- copying-mergesort [45] 100.0% [3] 1130(0.3%) 0(0.0%) jloop ...et/collects/racket/private/sort.rkt:85:19 ??? [55] 100.0% ------------------------------------------------------------------------- location-do [47] 100.0% [4] 862(0.3%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [11] 100.0% ------------------------------------------------------------------------- hash-ref! [59] 100.0% [5] 218(0.1%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:295:23 for-loop [13] 100.0% ------------------------------------------------------------------------- hash-ref! [59] 100.0% [6] 218(0.1%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:392:23 for-loop [12] 100.0% ------------------------------------------------------------------------- profile-thunk14 [1] 100.0% [7] 320386(98.5%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [31] 100.0% ------------------------------------------------------------------------- run-improve58 [2] 1.9% ??? [31] 98.1% [8] 315260(96.9%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 loop [14] 51.1% make-exacts* [19] 39.4% loop [20] 9.5% ------------------------------------------------------------------------- run-improve58 [2] 100.0% [9] 4902(1.5%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 split-table [15] 95.4% extract-alt [17] 4.6% ------------------------------------------------------------------------- run-improve58 [2] 100.0% [10] 3800(1.2%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [16] 100.0% ------------------------------------------------------------------------- approximate9 [4] 100.0% [11] 862(0.3%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [59] 100.0% ------------------------------------------------------------------------- ??? [6] 100.0% [12] 218(0.1%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:396:33 for-loop [18] 100.0% ------------------------------------------------------------------------- ??? [5] 100.0% [13] 218(0.1%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:298:27 hash-ref! [59] 100.0% ------------------------------------------------------------------------- loop [8] 100.0% [14] 161056(49.5%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [20] 53.6% make-exacts* [19] 40.9% eval-prog [58] 5.5% ------------------------------------------------------------------------- get-final-combination [9] 100.0% [15] 4678(1.4%) 0(0.0%) split-table .../ztatlock/herbie/src/glue.rkt:171:0 infer-splitpoints4 [21] 86.8% ??? [27] 13.2% ------------------------------------------------------------------------- for-loop [10] 100.0% [16] 3800(1.2%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 finalize-iter! [22] 32.4% simplify! [23] 26.9% gen-series! [24] 22.7% localize-error [41] 18.0% ------------------------------------------------------------------------- get-final-combination [9] 100.0% [17] 224(0.1%) 0(0.0%) extract-alt ...e/ztatlock/herbie/src/glue.rkt:57:0 loop [66] 100.0% ------------------------------------------------------------------------- for-loop [12] 100.0% [18] 218(0.1%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:398:39 hash-ref! [59] 100.0% ------------------------------------------------------------------------- loop [14] 34.7% loop [8] 65.3% [19] 189988(58.4%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [25] 49.9% loop [66] 46.6% eval-prog [58] 3.5% ------------------------------------------------------------------------- loop [8] 25.8% loop [14] 74.2% [20] 116440(35.8%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [25] 98.9% loop [66] 1.1% ------------------------------------------------------------------------- split-table [15] 100.0% [21] 4060(1.2%) 0(0.0%) infer-splitpoints4 ...ie/src/core/regimes.rkt:19:0 option-on-expr [26] 63.2% loop [66] 26.4% exprs-to-branch-on [30] 10.4% ------------------------------------------------------------------------- run-iter! [16] 100.0% [22] 1230(0.4%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [27] 100.0% ------------------------------------------------------------------------- run-iter! [16] 100.0% [23] 1024(0.3%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [28] 100.0% ------------------------------------------------------------------------- run-iter! [16] 100.0% [24] 862(0.3%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [29] 100.0% ------------------------------------------------------------------------- parse-loop12 [63] 0.0% f6 [69] 0.9% make-exacts* [19] 44.7% loop [20] 54.4% [25] 211816(65.1%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [66] 97.9% ??? [70] 1.5% parse-loop12 [63] 0.4% ??? [36] 0.3% f6 [69] 0.0% ------------------------------------------------------------------------- loop [66] 29.5% infer-splitpoints4 [21] 70.5% [26] 3636(1.1%) 0(0.0%) option-on-expr ...erbie/src/core/regimes.rkt:106:0 sort-context-on-expr [32] 81.1% pick-errors [35] 18.9% ------------------------------------------------------------------------- split-table [15] 33.4% finalize-iter! [22] 66.6% [27] 1848(0.6%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [33] 66.6% split-atab [37] 33.4% ------------------------------------------------------------------------- simplify! [23] 100.0% [28] 1024(0.3%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [31] 100.0% ------------------------------------------------------------------------- gen-series! [24] 100.0% [29] 862(0.3%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [34] 100.0% ------------------------------------------------------------------------- infer-splitpoints4 [21] 100.0% [30] 424(0.1%) 0(0.0%) exprs-to-branch-on ...ie/src/core/regimes.rkt:41:0 critical-subexpression [38] 100.0% ------------------------------------------------------------------------- for-loop [28] 0.1% run [7] 49.4% [31] 323962(99.6%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 49.4% loop [8] 48.3% run-improve58 [2] 2.2% simplify [71] 0.1% ------------------------------------------------------------------------- option-on-expr [26] 100.0% [32] 2948(0.9%) 0(0.0%) sort-context-on-expr ...herbie/src/points.rkt:50:0 sort [39] 100.0% ------------------------------------------------------------------------- ??? [27] 100.0% [33] 1230(0.4%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [40] 100.0% ------------------------------------------------------------------------- for-loop [29] 100.0% [34] 862(0.3%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [42] 100.0% ------------------------------------------------------------------------- option-on-expr [26] 100.0% [35] 688(0.2%) 0(0.0%) pick-errors ...k/herbie/src/core/regimes.rkt:173:0 for-loop [43] 100.0% ------------------------------------------------------------------------- loop [66] 17.2% map [25] 82.8% [36] 646(0.2%) 0(0.0%) ??? ...ket/collects/racket/private/list.rkt:323:18 hash-ref! [59] 100.0% ------------------------------------------------------------------------- ??? [27] 100.0% [37] 618(0.2%) 0(0.0%) split-atab ...k/herbie/src/core/alt-table.rkt:74:0 for-loop [44] 100.0% ------------------------------------------------------------------------- exprs-to-branch-on [30] 100.0% [38] 424(0.1%) 0(0.0%) critical-subexpression ...rc/core/regimes.rkt:49:0 localize-error [41] 100.0% ------------------------------------------------------------------------- sort-context-on-expr [32] 100.0% [39] 2948(0.9%) 0(0.0%) sort ...ket/collects/racket/private/sort.rkt:213:0 copying-mergesort [45] 68.7% loop [51] 31.3% ------------------------------------------------------------------------- for-loop [33] 100.0% [40] 1230(0.4%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [46] 83.6% loop [50] 16.4% ------------------------------------------------------------------------- critical-subexpression [38] 38.3% run-iter! [16] 61.7% [41] 1108(0.3%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [59] 100.0% ------------------------------------------------------------------------- taylor-alt [34] 100.0% [42] 862(0.3%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [47] 100.0% ------------------------------------------------------------------------- pick-errors [35] 100.0% [43] 688(0.2%) 0(0.0%) for-loop ...lock/herbie/src/core/regimes.rkt:176:4 eval-prog [58] 100.0% ------------------------------------------------------------------------- split-atab [37] 100.0% [44] 618(0.2%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:75:2 for-loop [48] 67.0% for-loop [49] 33.0% ------------------------------------------------------------------------- sort [39] 37.8% copying-mergesort [45] 62.2% [45] 2024(0.6%) 0(0.0%) copying-mergesort .../racket/private/sort.rkt:91:4 copying-mergesort [45] 62.2% loop [51] 23.8% jloop [3] 14.0% ------------------------------------------------------------------------- atab-add-altn [40] 100.0% [46] 1028(0.3%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [52] 80.5% for-loop [54] 19.5% ------------------------------------------------------------------------- for-loop [42] 27.2% location-do [47] 72.8% [47] 862(0.3%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 location-do [47] 72.8% approximate9 [4] 27.2% ------------------------------------------------------------------------- for-loop [44] 100.0% [48] 414(0.1%) 0(0.0%) for-loop ...ck/herbie/src/core/alt-table.rkt:80:53 loop [53] 100.0% ------------------------------------------------------------------------- for-loop [44] 100.0% [49] 204(0.1%) 0(0.0%) for-loop ...ck/herbie/src/core/alt-table.rkt:86:30 ??? [56] 100.0% ------------------------------------------------------------------------- atab-add-altn [40] 100.0% [50] 202(0.1%) 0(0.0%) loop ...atlock/herbie/src/core/alt-table.rkt:182:2 loop [66] 100.0% ------------------------------------------------------------------------- copying-mergesort [45] 49.2% sort [39] 50.8% [51] 1818(0.6%) 0(0.0%) loop ...cket/collects/racket/private/sort.rkt:64:8 ??? [55] 100.0% ------------------------------------------------------------------------- best-and-tied-at-points [46] 100.0% [52] 828(0.3%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [57] 73.2% eval-prog [58] 26.8% ------------------------------------------------------------------------- for-loop [48] 100.0% [53] 414(0.1%) 0(0.0%) loop ...ket/collects/racket/private/list.rkt:264:4 ??? [56] 100.0% ------------------------------------------------------------------------- best-and-tied-at-points [46] 100.0% [54] 200(0.1%) 200(0.1%) for-loop ...k/herbie/src/core/alt-table.rkt:124:16 ------------------------------------------------------------------------- jloop [3] 38.3% loop [51] 61.7% [55] 2948(0.9%) 0(0.0%) ??? /home/ztatlock/herbie/src/points.rkt:52:27 eval-prog [58] 100.0% ------------------------------------------------------------------------- for-loop [49] 33.0% loop [53] 67.0% [56] 618(0.2%) 0(0.0%) ??? .../ztatlock/herbie/src/core/regimes.rkt:291:8 eval-prog [58] 100.0% ------------------------------------------------------------------------- errors [52] 100.0% [57] 606(0.2%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [70] 100.0% ------------------------------------------------------------------------- errors [52] 1.1% ??? [56] 3.1% for-loop [43] 3.4% ??? [55] 14.7% make-exacts* [19] 33.5% loop [14] 44.2% [58] 20000(6.1%) 3786(1.2%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 hash-ref! [59] 77.6% new-lambda [60] 2.2% ------------------------------------------------------------------------- for-loop [13] 0.3% for-loop [18] 0.3% ??? [36] 2.1% ??? [65] 2.2% loop [11] 2.2% localize-error [41] 4.3% eval-prog [58] 29.8% loop [66] 59.0% [59] 17494(5.4%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [62] 59.0% bigfloat-hash [61] 29.8% f6 [69] 4.7% ??? [65] 2.2% simplify [64] 2.2% parse-loop12 [63] 1.6% ??? [6] 0.3% ??? [5] 0.3% ------------------------------------------------------------------------- eval-prog [58] 100.0% [60] 450(0.1%) 450(0.1%) new-lambda ...ollects/racket/private/kw.rkt:631:11 ------------------------------------------------------------------------- hash-ref! [59] 100.0% [61] 15524(4.8%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 bfcanonicalize [67] 77.8% sig+exp->bigfloat [68] 22.2% ------------------------------------------------------------------------- hash-ref! [59] 100.0% [62] 15104(4.6%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:197:5 loop [66] 100.0% ------------------------------------------------------------------------- parse-loop12 [63] 23.7% map [25] 33.4% hash-ref! [59] 42.8% [63] 1508(0.5%) 640(0.2%) parse-loop12 ...s/racket/match/compiler.rkt:410:15 loop [66] 42.8% parse-loop12 [63] 23.7% f6 [69] 17.0% map [25] 3.3% ------------------------------------------------------------------------- hash-ref! [59] 100.0% [64] 862(0.3%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 f6 [69] 100.0% ------------------------------------------------------------------------- hash-ref! [59] 100.0% [65] 862(0.3%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [59] 100.0% ------------------------------------------------------------------------- loop [50] 0.0% parse-loop12 [63] 0.0% extract-alt [17] 0.1% loop [20] 0.1% infer-splitpoints4 [21] 0.3% make-exacts* [19] 0.5% map [25] 2.3% ??? [62] 3.7% loop [66] 92.9% [66] 315436(97.0%) 202(0.1%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [66] 92.9% hash-ref! [59] 3.7% ??? [70] 2.8% option-on-expr [26] 0.3% simplify [71] 0.1% ->flonum [76] 0.1% ??? [85] 0.0% ??? [36] 0.0% ------------------------------------------------------------------------- bigfloat-hash [61] 100.0% [67] 12076(3.7%) 12076(3.7%) bfcanonicalize .../private/bigfloat/mpfr.rkt:155:0 ------------------------------------------------------------------------- bigfloat-hash [61] 100.0% [68] 3448(1.1%) 3448(1.1%) sig+exp->bigfloat ...ivate/bigfloat/mpfr.rkt:385:0 ------------------------------------------------------------------------- map [25] 3.7% parse-loop12 [63] 14.9% simplify [64] 25.2% hash-ref! [59] 56.2% [69] 1970(0.6%) 0(0.0%) f6 ...et/collects/racket/match/compiler.rkt:499:40 map [25] 94.4% gather-multiplicative-terms [72] 5.6% ------------------------------------------------------------------------- for-loop [57] 0.2% map [25] 1.0% loop [66] 98.8% [70] 301186(92.6%) 1778(0.5%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [73] 96.4% real->bigfloat [74] 2.6% ??? [90] 0.3% ->flonum [76] 0.1% ------------------------------------------------------------------------- loop [66] 17.9% ??? [31] 82.1% [71] 1248(0.4%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 simplify-expr [75] 66.0% iterate-egraph!5 [79] 34.0% ------------------------------------------------------------------------- gather-multiplicative-terms [72] 50.0% f6 [69] 50.0% [72] 222(0.1%) 222(0.1%) gather-multiplicative-terms ...re/reduce.rkt:107:0 gather-multiplicative-terms [72] 50.0% ------------------------------------------------------------------------- ??? [70] 100.0% [73] 290204(89.2%) 422(0.1%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [85] 93.2% bffmod [77] 3.2% bf* [82] 1.6% bfcube [78] 0.9% ...ow-val-first.rkt:357:18 [83] 0.6% ...higher-order.rkt:373:33 [80] 0.2% ------------------------------------------------------------------------- ??? [70] 100.0% [74] 7872(2.4%) 6786(2.1%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ??? [94] 13.8% ------------------------------------------------------------------------- simplify [71] 100.0% [75] 824(0.3%) 200(0.1%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [79] 75.7% ------------------------------------------------------------------------- loop [66] 35.5% ??? [70] 64.5% [76] 626(0.2%) 0(0.0%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [81] 64.5% ??? [93] 35.5% ------------------------------------------------------------------------- ??? [73] 100.0% [77] 9312(2.9%) 0(0.0%) bffmod ...tlock/herbie/src/syntax/syntax.rkt:128:0 ??? [85] 45.9% bf* [82] 34.8% ...ow-val-first.rkt:357:18 [83] 19.3% ------------------------------------------------------------------------- ??? [73] 100.0% [78] 2724(0.8%) 0(0.0%) bfcube ...tlock/herbie/src/syntax/syntax.rkt:119:0 bf* [82] 83.9% ...ow-val-first.rkt:357:18 [83] 16.1% ------------------------------------------------------------------------- simplify [71] 40.5% simplify-expr [75] 59.5% [79] 1048(0.3%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [84] 100.0% ------------------------------------------------------------------------- ??? [73] 100.0% [80] 462(0.1%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [86] 51.9% ??? [90] 48.1% ------------------------------------------------------------------------- ->flonum [76] 100.0% [81] 404(0.1%) 404(0.1%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ------------------------------------------------------------------------- bfcube [78] 22.6% bffmod [77] 31.9% ??? [73] 45.5% [82] 10136(3.1%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [85] 100.0% ------------------------------------------------------------------------- bfcube [78] 11.4% ??? [73] 41.7% bffmod [77] 46.9% [83] 3834(1.2%) 0(0.0%) ...ow-val-first.rkt:357:18 (unknown source) ??? [86] 88.1% ??? [90] 11.9% ------------------------------------------------------------------------- iterate-egraph!5 [79] 100.0% [84] 1048(0.3%) 0(0.0%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [87] 100.0% ------------------------------------------------------------------------- loop [66] 0.4% bffmod [77] 1.5% bf* [82] 3.5% ??? [73] 94.6% [85] 286116(88.0%) 257030(79.0%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfmul [88] 5.3% ??? [93] 2.5% bfcosh [89] 2.1% bffloor [91] 0.3% ------------------------------------------------------------------------- ...higher-order.rkt:373:33 [80] 6.6% ...ow-val-first.rkt:357:18 [83] 93.4% [86] 3618(1.1%) 202(0.1%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [90] 94.4% ------------------------------------------------------------------------- for-loop [87] 50.0% one-iter [84] 50.0% [87] 1048(0.3%) 422(0.1%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [87] 50.0% match-e [92] 29.9% ------------------------------------------------------------------------- ??? [85] 100.0% [88] 15106(4.6%) 12122(3.7%) bfmul ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [94] 19.8% ------------------------------------------------------------------------- ??? [85] 100.0% [89] 5896(1.8%) 4792(1.5%) bfcosh ...lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [94] 18.7% ------------------------------------------------------------------------- ...higher-order.rkt:373:33 [80] 4.4% ...ow-val-first.rkt:357:18 [83] 9.1% ??? [70] 18.5% ??? [86] 68.0% [90] 5022(1.5%) 202(0.1%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [93] 96.0% ------------------------------------------------------------------------- ??? [85] 100.0% [91] 940(0.3%) 700(0.2%) bffloor ...ib/math/private/bigfloat/mpfr.rkt:714:4 ??? [94] 25.5% ------------------------------------------------------------------------- for-loop [87] 100.0% [92] 626(0.2%) 626(0.2%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 ------------------------------------------------------------------------- ->flonum [76] 1.8% ??? [90] 38.8% ??? [85] 57.5% [93] 12424(3.8%) 5188(1.6%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ??? [95] 52.8% ??? [96] 5.5% ------------------------------------------------------------------------- bffloor [91] 4.4% real->bigfloat [74] 20.1% bfcosh [89] 20.4% bfmul [88] 55.1% [94] 5414(1.7%) 5414(1.7%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ------------------------------------------------------------------------- ??? [93] 100.0% [95] 6556(2.0%) 4140(1.3%) ??? ...llects/racket/contract/combinator.rkt:178:4 any-wrap/traverse [97] 36.9% ------------------------------------------------------------------------- ??? [93] 100.0% [96] 680(0.2%) 680(0.2%) ??? ...ects/racket/contract/private/prop.rkt:489:4 ------------------------------------------------------------------------- ??? [95] 100.0% [97] 2416(0.7%) 2416(0.7%) any-wrap/traverse ...cket/utils/any-wrap.rkt:106:2 -------------------------------------------------------------------------