Comments for Homepage of Mate Soos http://www.msoos.org A blog about SAT solving and cryptography Fri, 18 May 2012 09:04:00 +0000 hourly 1 http://wordpress.org/?v=3.3.2 Comment on ANF to CNF conversion by Lynn http://www.msoos.org/2010/07/anf-to-cnf-conversion/#comment-116 Lynn Fri, 18 May 2012 09:04:00 +0000 http://www.msoos.org/wordpress/?p=11#comment-116 Hi, I have tried this tool and I got an incorrect result as follow: B.<a> = BooleanPolynomialRing() solver = ANFSatSolver(B) print solver.cnf([a*b + b*c + b + d, b*c + c + a]) p cnf 6 14 c ------------------------------ c Next definition: a*b + b*c + b + d -3 -5 -2 -6 0 3 5 -2 -6 0 3 -5 2 -6 0 3 -5 -2 6 0 -3 5 2 -6 0 -3 5 -2 6 0 -3 -5 2 6 0 3 5 2 6 0 c ------------------------------ c Next definition: a + b*c + c c ------------------------------ c Next definition: monomial a*b 1 -3 0 2 -3 0 3 -1 -2 0 c ------------------------------ c Next definition: monomial b*c 2 -5 0 4 -5 0 5 -2 -4 0 could you please help me with this problem? Thanks! Hi,
I have tried this tool and I got an incorrect result as follow:

B. = BooleanPolynomialRing()
solver = ANFSatSolver(B)
print solver.cnf([a*b + b*c + b + d, b*c + c + a])

p cnf 6 14
c ——————————
c Next definition: a*b + b*c + b + d
-3 -5 -2 -6 0
3 5 -2 -6 0
3 -5 2 -6 0
3 -5 -2 6 0
-3 5 2 -6 0
-3 5 -2 6 0
-3 -5 2 6 0
3 5 2 6 0
c ——————————
c Next definition: a + b*c + c
c ——————————
c Next definition: monomial a*b
1 -3 0
2 -3 0
3 -1 -2 0
c ——————————
c Next definition: monomial b*c
2 -5 0
4 -5 0
5 -2 -4 0

could you please help me with this problem?

Thanks!

]]> Comment on SAT Blog by msoos http://www.msoos.org/my-posts/#comment-111 msoos Wed, 11 Apr 2012 18:04:55 +0000 http://www.msoos.org/wordpress/?page_id=96#comment-111 Oops, sorry, this is a bug that I think has finally been fixed. I will release 2.9.3 ASAP the fix of the bug has been confirmed. The new release will only fix this bug, and will not affect the solver's behaviour in any other way. Again, sorry for this. Oops, sorry, this is a bug that I think has finally been fixed. I will release 2.9.3 ASAP the fix of the bug has been confirmed. The new release will only fix this bug, and will not affect the solver’s behaviour in any other way. Again, sorry for this.

]]> Comment on SAT Blog by Doug Wiedemann http://www.msoos.org/my-posts/#comment-110 Doug Wiedemann Wed, 11 Apr 2012 17:42:51 +0000 http://www.msoos.org/wordpress/?page_id=96#comment-110 Hi - For very long Cryptominisat runs I bump into the limit on restarts (2^32-1). Is there any way to set this limit to infinity? Thanks, Doug Wiedemann Hi –

For very long Cryptominisat runs I bump into the limit on restarts
(2^32-1). Is there any way to set this limit to infinity?

Thanks,
Doug Wiedemann

]]> Comment on AMD’s OpenCL heaven and hell by msoos http://www.msoos.org/2012/01/amds-opencl-heaven-and-hell/#comment-105 msoos Mon, 12 Mar 2012 11:48:47 +0000 http://www.msoos.org/?p=1079#comment-105 Good fix! Rather. This is a workaround. How do I tell flash about that? What will granny say about "Granny, please open the console, type in 'mplayer -vo gl2 filename' and it will all be fine!" Sure, this fixes the problem for me. But is this a fix? New HD7900 series didn't have a Linux driver on release. Now the driver they put out fails to work properly in OpenCL for at least one kernel I have. No, my OpenCL kernel is correct, running on 5870s fine and dandy, and it's simple to check if it's correct. No, the AMD OpenCL architecture is quite broken to be honest :( Good fix! Rather. This is a workaround. How do I tell flash about that? What will granny say about “Granny, please open the console, type in ‘mplayer -vo gl2 filename’ and it will all be fine!” Sure, this fixes the problem for me. But is this a fix?

New HD7900 series didn’t have a Linux driver on release. Now the driver they put out fails to work properly in OpenCL for at least one kernel I have. No, my OpenCL kernel is correct, running on 5870s fine and dandy, and it’s simple to check if it’s correct. No, the AMD OpenCL architecture is quite broken to be honest :(

]]> Comment on AMD’s OpenCL heaven and hell by KK http://www.msoos.org/2012/01/amds-opencl-heaven-and-hell/#comment-104 KK Mon, 12 Mar 2012 09:37:56 +0000 http://www.msoos.org/?p=1079#comment-104 The little bit with crashes when you watch a video is easy to fix. The default xv video output is no good any more. Don't know what you use, but on mplayer you can do "mplayer -vo gl2" (sometimes just -vo gl) and it will work just fine. The little bit with crashes when you watch a video is easy to fix. The default xv video output is no good any more. Don’t know what you use, but on mplayer you can do “mplayer -vo gl2″ (sometimes just -vo gl) and it will work just fine.

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