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ie. without the 1 2013-02-16T10:47:01 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T10:47:28 *** AlliedEnvy has joined #aichallenge 2013-02-16T11:05:39 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T11:05:41 *** mleise1 has joined #aichallenge 2013-02-16T11:05:48 mcstar: yes, 11 'moves' after the 1 so not including the 1 2013-02-16T11:06:27 *** AlliedEnvy has joined #aichallenge 2013-02-16T11:06:28 a1k0n: i have to check(i dont think i made a mistake) but i think i have a lower one 2013-02-16T11:07:04 i only prove existence, i dont have a construction atm 2013-02-16T11:07:49 i'm pretty sure you don't, since i generated all length-10 SLPs exhaustively 2013-02-16T11:08:04 we will see :) 2013-02-16T11:08:17 *** mleise has quit IRC (Read error: Operation timed out) 2013-02-16T11:08:33 a1k0n: do you know anything about this Al Zimmermann guy? 2013-02-16T11:08:40 nope 2013-02-16T11:09:13 maybe he didnt like my letters and he chose not to respond anymore 2013-02-16T11:09:43 but really, is it so unreasonable that i wanted to use a pseudonyme? 2013-02-16T11:09:48 are you writing tirades about real names? 2013-02-16T11:10:40 * mcstar is looking up tirade 2013-02-16T11:10:57 tell it to vic gundotra 2013-02-16T11:12:19 im not writing tirades, but i argued, that nowhere does the registration say i need to supply my real name, he cant ascertain it anyway, and there should at least be an option to display a screen name 2013-02-16T11:12:42 real name/address is only necessary for shipping the prizes 2013-02-16T11:12:46 that can be arranged later anyway 2013-02-16T11:13:21 i used the name Dexter Filmore, which is an alias of MacGyver 2013-02-16T11:13:41 he either googled the name, or watched the show thoroughly 2013-02-16T11:15:17 a1k0n: i see, VG is the SVP of google, but why should i tell this to him? 2013-02-16T11:15:25 i dont get the jest 2013-02-16T11:16:51 he's the driving force behind google+, and eventually by extension all google and youtube accounts requiring real names 2013-02-16T11:17:25 then im going to live on another planet 2013-02-16T11:25:27 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T11:25:58 *** AlliedEnvy has joined #aichallenge 2013-02-16T11:38:18 i have an error, indeed 2013-02-16T11:39:20 "youre just too good to be true, cant take my eyes off of you.." 2013-02-16T11:45:22 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T11:46:03 *** AlliedEnvy has joined #aichallenge 2013-02-16T12:06:21 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T12:07:04 *** AlliedEnvy has joined #aichallenge 2013-02-16T12:24:20 a1k0n: can you comfirm that there are 88 slps for 5! of raw score 6? 2013-02-16T12:24:39 confirm* 2013-02-16T12:26:50 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T12:27:38 *** AlliedEnvy has joined #aichallenge 2013-02-16T12:27:58 btw, if you think i harass you too much just say so 2013-02-16T12:44:33 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T12:45:10 *** AlliedEnvy has joined #aichallenge 2013-02-16T13:00:17 *** Garf has joined #aichallenge 2013-02-16T13:13:35 well, 155 if i cound multiple indices for a given set of operators 2013-02-16T13:13:43 count* 2013-02-16T13:13:55 not really a set, it is ordered 2013-02-16T13:14:07 list of operators 2013-02-16T13:15:06 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T13:15:46 *** AlliedEnvy has joined #aichallenge 2013-02-16T13:29:39 *** Accoun has quit IRC () 2013-02-16T13:37:18 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T13:37:50 *** AlliedEnvy has joined #aichallenge 2013-02-16T13:40:18 *** Accoun has joined #aichallenge 2013-02-16T13:51:47 wtf, gcc iostream cannot handle __int128 2013-02-16T13:57:20 *** epicmonkey has joined #aichallenge 2013-02-16T13:58:18 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T13:58:47 *** AlliedEnvy has joined #aichallenge 2013-02-16T14:11:00 *** rofer has joined #aichallenge 2013-02-16T14:17:38 wtf, my emacs is as slow as if i were using it over a very slow ssh tunnel 2013-02-16T14:25:37 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T14:26:17 *** AlliedEnvy has joined #aichallenge 2013-02-16T14:29:27 now i just need to mpi-ize this code 2013-02-16T14:30:53 ofc i will need to gmp-ize it too, soon 2013-02-16T14:33:00 bleh, the cluster is busy just when i need it 2013-02-16T14:33:58 *** Chris_0076 has quit IRC (Remote host closed the connection) 2013-02-16T14:34:20 cluster? :( 2013-02-16T14:34:46 yeah 2013-02-16T14:34:55 there are a couple 2013-02-16T14:35:27 im usually using the gpu cluster, thats like 25 gpus, but they are busy now, and a gpu thread keeps a cpu thread busy too 2013-02-16T14:35:41 and i dont want to interfere, if someone else is using them 2013-02-16T14:36:08 (this code is for the cpu ofc, but those have pretty good cpus) 2013-02-16T14:36:55 i figured running this on a google datacenter would be sorta cheating so didn't 2013-02-16T14:37:07 a1k0n: is the ':(' because your code is so fast, you dont need multiple cores? 2013-02-16T14:37:16 heh no, i definitely use multiple cores 2013-02-16T14:37:38 it's basically a big series of mapreduces 2013-02-16T14:37:50 my home machine is very slow, so at the very least, i need to run it on a 8core at work 2013-02-16T14:38:06 but pretty inefficient since my shuffle step is just unix sort, so it's all text files 2013-02-16T14:38:17 heh, well, that's waht i did. 12 cores. 2013-02-16T14:38:39 it is 110 lines of c++ for me 2013-02-16T14:38:39 i need to get me one of those 6-core hyperthreaded sandy bridges 2013-02-16T14:38:48 that's pretty short 2013-02-16T14:39:01 if you #include you can have bignums with just as little code 2013-02-16T14:39:05 a1k0n: does that have integrated gpu's? 2013-02-16T14:39:06 gmpxx.h i mean 2013-02-16T14:39:10 use mpz_class instead of int or whatever 2013-02-16T14:39:12 yeah, i used it before 2013-02-16T14:39:16 it might 2013-02-16T14:39:38 gmpxx is sorta shitty though... it does a lot of alloc/freeing 2013-02-16T14:39:54 most of my time was spent in free() until i fixed some stuff 2013-02-16T14:40:21 my code is long, cause i have nested loops, which gets bigger and bigger with each raw score 2013-02-16T14:40:29 -s 2013-02-16T14:40:55 a1k0n: what do you shuffle? 2013-02-16T14:41:08 i dont really get why you would use a utility like sort 2013-02-16T14:41:48 well, i can't search all possible length-11 or longer SLPs so i have to decide which to throw out 2013-02-16T14:42:08 it's a heuristic breadth-first-search 2013-02-16T14:42:20 i dont do bfs, only dfs 2013-02-16T14:42:27 so i dont need to store intermediats 2013-02-16T14:42:30 you should at least branch and bound 2013-02-16T14:42:33 intermediates 2013-02-16T14:42:45 and then... you find out that your upper bound is shrinking by 1 every so often 2013-02-16T14:43:01 and then realize that you should be doing it the other way round 2013-02-16T14:43:12 im not even sure if you search the same way, ie. use the same representation for the SLP 2013-02-16T14:43:18 i did actually write a randomized dfs 2013-02-16T14:43:28 you->we 2013-02-16T14:43:32 i threw away a lot of code 2013-02-16T14:43:53 well, representation doesn't matter as long as you ensure you aren't searching the same one different ways 2013-02-16T14:44:03 how long does it take for you to search through raw 10? 2013-02-16T14:44:18 you mean, how long to find a solution to 10!? 2013-02-16T14:44:35 no, for raw length 10 go through all SLPs 2013-02-16T14:44:50 for example, 12! has raw length 10 2013-02-16T14:45:02 oh. a.. long time. that was a mapreduce. 2013-02-16T14:45:04 and im searching for 13! of raw lenght 10 2013-02-16T14:45:09 (which will fail) 2013-02-16T14:45:13 and i eliminated everything that had a shorter SLP 2013-02-16T14:45:29 e.g. if the last number can be generated by a shorter SLP i skip it 2013-02-16T14:45:42 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T14:45:44 with that constraint i can enumerate all of them in about 6gb 2013-02-16T14:46:15 im using 0% memory :( 2013-02-16T14:46:24 *** AlliedEnvy has joined #aichallenge 2013-02-16T14:46:34 i wonder when will it finish though 2013-02-16T14:46:43 im running it on 1 core of an old amd x2 2013-02-16T14:46:49 so far, 20 minutes 2013-02-16T14:50:12 jesus, the latest centos has only gcc 4.4.6 2013-02-16T14:50:16 i cant compile my code 2013-02-16T14:51:59 *** AlliedEnvy has quit IRC (Read error: Operation timed out) 2013-02-16T14:52:45 i just copied a static exe to the server 2013-02-16T14:52:54 *** AlliedEnvy has joined #aichallenge 2013-02-16T14:55:13 also, i can reduce the number of operators from 4 to 3 2013-02-16T14:55:29 since the flipped (-) didnt appear so far 2013-02-16T15:07:34 *** antimatroidl has quit IRC (Read error: Connection reset by peer) 2013-02-16T15:11:44 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T15:12:24 *** AlliedEnvy has joined #aichallenge 2013-02-16T15:36:44 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T15:37:28 *** AlliedEnvy has joined #aichallenge 2013-02-16T15:37:54 *** epicmonkey has quit IRC (Ping timeout: 264 seconds) 2013-02-16T16:00:22 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T16:00:57 *** AlliedEnvy has joined #aichallenge 2013-02-16T16:05:07 *** thestinger has joined #aichallenge 2013-02-16T16:05:22 *** Areks has quit IRC (Read error: Connection reset by peer) 2013-02-16T16:05:57 *** Areks has joined #aichallenge 2013-02-16T16:14:26 thestinger: is it possible wtih c++ to catch an exception, and then continue from the point where it was thrown? 2013-02-16T16:14:38 mcstar: no 2013-02-16T16:14:43 no tricks? 2013-02-16T16:14:47 btw, hi 2013-02-16T16:14:49 not afaik 2013-02-16T16:14:51 mcstar: hi 2013-02-16T16:15:00 rust has conditions (which do that) instead of catchable exceptions 2013-02-16T16:15:04 thatd be awesome though 2013-02-16T16:15:32 then i need to save the state of a function and re-enter it somehow 2013-02-16T16:15:47 im not sure i can do that with static vars 2013-02-16T16:16:40 mcstar: have them pass in the state as a param? 2013-02-16T16:16:54 no 2013-02-16T16:17:03 by-ref I mean 2013-02-16T16:17:08 yea, but no 2013-02-16T16:17:12 oh 2013-02-16T16:17:14 by-pointer 2013-02-16T16:17:26 nullptr for the first go 2013-02-16T16:17:30 and it saves the state in there 2013-02-16T16:17:32 ;p 2013-02-16T16:17:34 i want to implement something, that looks like a stream 2013-02-16T16:17:58 i have a deeply nested loop, that is like taking an N-dimensional descartes product of a list 2013-02-16T16:18:05 and i want to produce these values 2013-02-16T16:18:17 and i dont want to abandon my for loops 2013-02-16T16:18:35 mcstar: can you just have them pass in a lambda 2013-02-16T16:19:05 well, it needs to be async too 2013-02-16T16:19:12 and have it handle an error or throw 2013-02-16T16:19:22 this master thread will run slaves, running for different times 2013-02-16T16:20:03 ill figure it out.. 2013-02-16T16:21:41 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T16:22:27 oh no 2013-02-16T16:22:29 "Stack unwinding" means that all scopes between throw and the matching catch clause are left, calling destructors for all automatic objects in those scopes, pretty much in the same way function scopes are left when you return from a function. 2013-02-16T16:22:30 *** AlliedEnvy has joined #aichallenge 2013-02-16T16:22:42 c++ automatically unwinds the stack it seems 2013-02-16T16:22:53 common lisp is much more forgiving 2013-02-16T16:28:14 another possibility, is to really get rid of the nested fors and turn them inside out 2013-02-16T16:32:02 fuck, broken pipe, i should have run the code in a screen session 2013-02-16T16:32:14 reptyr! :P 2013-02-16T16:32:36 i think i used it before 2013-02-16T16:32:42 but now i forgot what it is 2013-02-16T16:32:57 ah right, it is useful 2013-02-16T16:33:03 but it wont help now 2013-02-16T16:43:54 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T16:44:31 *** AlliedEnvy has joined #aichallenge 2013-02-16T17:11:16 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T17:12:06 *** AlliedEnvy has joined #aichallenge 2013-02-16T17:13:22 thestinger: how do i check if a boost optional is empty? 2013-02-16T17:13:51 mcstar: it coerces to a bool 2013-02-16T17:14:06 ic 2013-02-16T17:14:28 mcstar: https://github.com/thestinger/util/blob/master/maybe.hh :P 2013-02-16T17:14:30 so it is either some value or false 2013-02-16T17:14:43 mcstar: well it acts like a ptr 2013-02-16T17:14:44 thx but i have to use optional 2013-02-16T17:14:50 aww :P 2013-02-16T17:14:58 and https://github.com/thestinger/util/blob/master/either.hh :] 2013-02-16T17:15:03 with ghetto pattern matching 2013-02-16T17:28:45 mpi version is 160 locs long 2013-02-16T17:29:49 *** foRei has quit IRC (Quit: Bye) 2013-02-16T17:29:58 a1k0n: on 1 core of an intel xeon e5530 2.5ghz, searching through all raw score 10 took 3266.56s 2013-02-16T17:33:44 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T17:34:11 *** AlliedEnvy has joined #aichallenge 2013-02-16T17:41:15 mcstar: wow not bd 2013-02-16T17:41:51 now i just have to remember how to mix dynamic and static linking 2013-02-16T17:42:39 *** bluecookies has joined #aichallenge 2013-02-16T17:52:53 *** Scooper has quit IRC (Quit: Leaving) 2013-02-16T17:55:29 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T17:56:15 *** AlliedEnvy has joined #aichallenge 2013-02-16T18:09:00 *** wentam has quit IRC (Read error: Operation timed out) 2013-02-16T18:20:00 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T18:20:47 *** AlliedEnvy has joined #aichallenge 2013-02-16T18:26:01 *** wentam has joined #aichallenge 2013-02-16T18:39:46 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T18:40:14 *** AlliedEnvy has joined #aichallenge 2013-02-16T18:43:37 *** bluecookies has quit IRC (Quit: Page closed) 2013-02-16T19:03:12 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T19:03:48 *** AlliedEnvy has joined #aichallenge 2013-02-16T19:22:24 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T19:22:53 *** AlliedEnvy has joined #aichallenge 2013-02-16T19:52:26 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T19:52:54 *** AlliedEnvy has joined #aichallenge 2013-02-16T20:20:57 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T20:21:29 *** AlliedEnvy has joined #aichallenge 2013-02-16T20:34:34 *** Garf has quit IRC (Quit: Make a new plan, Stan!) 2013-02-16T20:41:18 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T20:42:02 *** AlliedEnvy has joined #aichallenge 2013-02-16T20:47:13 *** _flag <_flag!~flag@69-165-173-172.dsl.teksavvy.com> has joined #aichallenge 2013-02-16T20:47:22 <_flag> a1k0n: ping 2013-02-16T20:51:32 i built a static openmpi, lets see if i can use it on the server 2013-02-16T20:51:50 btw, hi flag, its been a long time 2013-02-16T20:52:06 <_flag> hey, been checking irc logs for another contest but haven't been on in awhile 2013-02-16T20:52:16 <_flag> have you tried that factorial contest a1k0n posted a few days ago? 2013-02-16T20:52:23 doing it atm 2013-02-16T20:52:44 <_flag> do you have one for 13!? I'm curious how my solution compares step-wise 2013-02-16T20:52:52 <_flag> I got it in 17 2013-02-16T20:52:58 thats too much 2013-02-16T20:53:03 <_flag> Figured 2013-02-16T20:53:09 you can get it in raw score 11 2013-02-16T20:53:12 <_flag> wow 2013-02-16T20:53:28 i can do a 15 with hand :) 2013-02-16T20:53:54 just go with an almost equal product representation 2013-02-16T20:54:08 but the computer will find much better ones than that 2013-02-16T20:55:02 <_flag> oh well, just started writing it an hour ago 2013-02-16T20:55:08 <_flag> It'll improve 2013-02-16T20:55:11 sure 2013-02-16T20:56:00 ive been doing this today mostly 2013-02-16T20:56:09 and been thinking about it yesterday too 2013-02-16T20:56:17 but i havent programmed yesterday 2013-02-16T20:56:28 <_flag> does your code produce any results yet? 2013-02-16T20:56:46 yes, checked it for 5! to 12! 2013-02-16T20:57:06 and checked raw score 10 for 13!, no luck 2013-02-16T20:57:12 so it must be of RS 11 2013-02-16T20:57:25 a1k0n has already told me so, but i checked nevertheless 2013-02-16T20:57:51 now i have a version with mpi and 128bit integers 2013-02-16T20:58:05 im trying to get it working on an 8 core machine 2013-02-16T20:58:18 but its very late, im going to bed soon 2013-02-16T20:58:36 <_flag> not even sure you need 128 bit integers, unless you plan on searching for addition combinations in numbers that high 2013-02-16T20:58:44 <_flag> you can just represent it as prime factors 2013-02-16T20:59:04 this is easier 2013-02-16T20:59:17 primes didnt help me so far 2013-02-16T20:59:22 <_flag> and 37! > 2^128 2013-02-16T20:59:41 well, that doesnt matter now 2013-02-16T20:59:54 i cant reach high numbers with this program anyway 2013-02-16T20:59:57 it would take too much time 2013-02-16T21:00:01 <_flag> you brute forcing? 2013-02-16T21:00:05 <_flag> or something like it? 2013-02-16T21:00:14 this is a search, yes 2013-02-16T21:00:56 <_flag> yeah, I thought about that but figured it would only be useful for low numbers 2013-02-16T21:01:55 i failed so far from theoretical directions 2013-02-16T21:02:11 im using only a very limited kind of assumption for the search 2013-02-16T21:02:41 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T21:03:33 *** AlliedEnvy has joined #aichallenge 2013-02-16T21:05:37 mcstar: gcc has 128-bit ints as an extension btw 2013-02-16T21:06:15 yeah 2013-02-16T21:06:20 but not 4.4.6 2013-02-16T21:06:26 anyway, fuck centos 2013-02-16T21:06:29 how fast is your code compared to gmp's factorial? 2013-02-16T21:06:42 factorial? 2013-02-16T21:06:51 idk, i dont use factorial 2013-02-16T21:06:51 isn't that what you're doing ;p 2013-02-16T21:06:54 no 2013-02-16T21:07:09 thestinger: thats just an input number 2013-02-16T21:07:13 oh 2013-02-16T21:07:38 mcstar: so what is this thing you're actually doing then? 2013-02-16T21:07:51 thestinger: iostream is not overloaded for __int128 however 2013-02-16T21:07:59 <_flag> oh, I think I know why my code sucks, I'm assuming negative numbers are a waste of time 2013-02-16T21:08:09 they are, mostly 2013-02-16T21:08:13 <_flag> or, maybe not 2013-02-16T21:08:17 <_flag> because it's the same backwards 2013-02-16T21:08:19 <_flag> nevermind 2013-02-16T21:08:27 <_flag> In that case, I can't see how you can possible get 13! in 11 2013-02-16T21:08:28 thestinger: al zimmermann's programming contest 2013-02-16T21:08:31 <_flag> possibly* 2013-02-16T21:08:41 search for it 2013-02-16T21:08:46 also, i cant participate 2013-02-16T21:08:51 i think he is mad at me 2013-02-16T21:09:07 mcstar: lol, why? 2013-02-16T21:09:21 i gave an alias when i registered 2013-02-16T21:09:28 he wrote back, he needs my real name 2013-02-16T21:09:41 i said, fuck off, i dont want to tell you 2013-02-16T21:10:03 i didnt say fo, but im a bit annoyed 2013-02-16T21:10:22 im going to sleep, ill compile this static mpi shit tomorrow 2013-02-16T21:10:28 bb 2013-02-16T21:10:29 <_flag> search for it where? 2013-02-16T21:10:30 *** mcstar has quit IRC (Quit: mcstar) 2013-02-16T21:10:36 <_flag> There's just a yahoo discussion group on the site 2013-02-16T21:10:42 <_flag> And I don't want to join yahoo 2013-02-16T21:24:34 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T21:25:04 *** AlliedEnvy has joined #aichallenge 2013-02-16T21:38:18 *** AlliedEnvy has quit IRC (Read error: Operation timed out) 2013-02-16T21:39:03 *** AlliedEnvy has joined #aichallenge 2013-02-16T22:02:02 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T22:02:38 *** AlliedEnvy has joined #aichallenge 2013-02-16T22:26:06 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T22:26:38 *** AlliedEnvy has joined #aichallenge 2013-02-16T23:08:53 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T23:09:42 *** AlliedEnvy has joined #aichallenge 2013-02-16T23:40:29 *** AlliedEnvy has quit IRC (Read error: Connection timed out) 2013-02-16T23:41:16 *** AlliedEnvy has joined #aichallenge 2013-02-16T23:53:35 _flag: the prime factor representation is somewhat efficient, except when you bring in addition and subtraction and then you have to re-factorize 2013-02-16T23:57:32 then you can easily end up with a mersenne prime or something