Search found 566 matches

by mvk
Sun Mar 13, 2016 10:05 am
Forum: Computer Chess Club: General Topics
Topic: Lee Sedol vs. AlphaGo [link to live feed]
Replies: 121
Views: 35597

Re: Lee Sedol vs. AlphaGo [link to live feed]

Dirt wrote:
peter wrote:Hi!
Lee Sedol has won his first game in the match.
3-1
With the match victory in hand AlphaGo probably got lazy. :-)
It calculated the probability of winning the match by losing this game as 100% and then lost the game.
by mvk
Sun Mar 13, 2016 9:43 am
Forum: Computer Chess Club: General Topics
Topic: Xboard sluggish on OSX
Replies: 57
Views: 15607

Re: Xboard sluggish on OSX

I've made a screen recording containing fragments of two games: https://marcelk.net/2016-03-13/xslug.mov At 1:24 you can observe a "long move" (Ra1xa8) with the arrow being drawn square by square for example, with the previous arrow still partially drawn. Perhaps it is some setting of some kind some...
by mvk
Sun Mar 13, 2016 8:41 am
Forum: Computer Chess Club: General Topics
Topic: Xboard sluggish on OSX
Replies: 57
Views: 15607

Re: Xboard sluggish on OSX

As I said I have done all that. I was thinking of some XQuartz or widget kit issue, but there is no slowdown in other apps as far as I'm aware of.
by mvk
Sat Mar 12, 2016 11:26 pm
Forum: Computer Chess Club: General Topics
Topic: Xboard sluggish on OSX
Replies: 57
Views: 15607

Xboard sluggish on OSX

Since about a week or so I found that Xboard has become unbearably slow on OSX. I'm normally using the installation from macports, because that allows me to use multiple boards simultaneously. (eg. being able to be on FICS as well as running a local game in another window, and being able to launch d...
by mvk
Thu Mar 10, 2016 9:29 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Crafty c questions
Replies: 41
Views: 7679

Re: Crafty c questions

Implicit casting to and from void pointers is sane in standard C, and quite useful as it eliminates almost any need for ugly explicit pointer casts. It is not ok in C++ as I understand. (Personally I like C here better.)

Arithmetic on void pointers is a gcc extension and not valid in standard C.
by mvk
Wed Mar 02, 2016 9:22 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Raspberry Pi 3 Model B: 64 bit quad core, US$35
Replies: 21
Views: 8583

Re: Raspberry Pi 3 Model B: 64 bit quad core, US$35

The RPI3 I ordered will be delivered today, unfortunately I cannot use it because (it seems) there is no 64 bit OS available for it yet. This is really very stupid, it means I have to compile something myself (which probably takes a lot of time to get everything working) or I just have to be patien...
by mvk
Sun Feb 28, 2016 7:49 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: all the old tools are vanishing...
Replies: 9
Views: 4114

Re: all the old tools are vanishing...

also, building polyglot from the source you mentioned yields the error: $ ./configure && make ... book_make.c:20:10: fatal error: 'pgheader.h' file not found #include "pgheader.h" You have to add pgheader.h manually for some reason. Here is the one Michel once shared with me: #ifndef PGHEADER_H #de...
by mvk
Sat Feb 13, 2016 4:28 pm
Forum: Computer Chess Club: General Topics
Topic: Moore's Law is dead.
Replies: 37
Views: 5802

Re: Moore's Law is dead.

Once again, everything is a capacitor, even your hair, or my blanket, but electrical characteristics between discrete capacitor, my blanket, your hair and trenched DRAM capacitor are totally different in pretty much same degree. I agree. One can't really unify the operating principles of bipolars a...
by mvk
Fri Feb 12, 2016 12:52 am
Forum: Computer Chess Club: General Topics
Topic: Moore's Law is dead.
Replies: 37
Views: 5802

Re: Moore's Law is dead.

To my knowledge this is the first time the mainstream tech media are starting to pick up on this. In fact it has been over after roughly what is called the "28nm" technology node (those "nm" numbers are marketing-driven misnomers btw). Beyond that, yes, density continued to shrink, however at increa...
by mvk
Tue Jan 19, 2016 6:07 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: C programming style question
Replies: 30
Views: 4841

Re: C programming style question

Both methods are equivalent. Note that *(a + i) is the same as a , so you can write dirXX[m][s] or *(dirxx[m] + s) anywhere in your code. And as pointer addition is commutative in C, you can also conveniently write dirXX[m][s] as s[m[dirXX]] and get exactly the same result. P.S.: for (int i=0; ...