[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-12-28 Thread Ingo Althöfer
Hello Hideki, > Ingo, now Zengg19 is running in Computer Go room as a rank-free bot > with 30 minutes sd. It's running on a (mini) cluster of four Intel > quad-core handcraft computers. Thank you for that Christmas surprise. And Cluster-Zen's performance on cgos is impressive, indeed: http://

[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-12-24 Thread Hideki Kato
Ingo, now Zengg19 is running in Computer Go room as a rank-free bot with 30 minutes sd. It's running on a (mini) cluster of four Intel quad-core handcraft computers. Hideki Ingo Althöfer: <20091124200643.255...@gmx.net>: >Hideki replied: >> >>> Do I have a Christmas wish for free already? >>> It

Re: [SPAM] Re: [SPAM] Re: [SPAM] Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-25 Thread Olivier Teytaud
> > > Interesting, surely the order is almost logarithmic. But how long it > takes a packet to pass through a layer. I'm afraid the actual delay > time may increase. > With gigabit ethernet my humble opinion is that you should have no problem. But, testing what happens if you "artificially" canc

Re: [SPAM] Re: [SPAM] Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-25 Thread Hideki Kato
Olivier Teytaud: : >> Even if the sum-up is done in a logarithmic time (with binary tree >> style), the collecting time of all infomation from all nodes is >> proportional to the number of nodes if the master node has few >> communication ports, isn't it? >> > >No (unless I misunderstood what you m

Re: [SPAM] Re: [SPAM] Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-25 Thread Olivier Teytaud
> Even if the sum-up is done in a logarithmic time (with binary tree > style), the collecting time of all infomation from all nodes is > proportional to the number of nodes if the master node has few > communication ports, isn't it? > No (unless I misunderstood what you mean, sorry in that case!)

Re: [SPAM] Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-25 Thread Hideki Kato
Olivier Teytaud: : >> In your (or Sylvain's?) recent paper, you wrote less than one second >> interval was useless. I've observed similar. I'm now evaluating the >> performance with 0.2, 0.4, 1 and 4 second intervals for 5 second per >> move setting on 19x19 board on 32 nodes of HA8000 cluster. >

Re: [SPAM] Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-25 Thread Olivier Teytaud
> In your (or Sylvain's?) recent paper, you wrote less than one second > interval was useless. I've observed similar. I'm now evaluating the > performance with 0.2, 0.4, 1 and 4 second intervals for 5 second per > move setting on 19x19 board on 32 nodes of HA8000 cluster. > Yes, one second is fi

Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Hideki Kato
Thank you Oliver, Olivier Teytaud: : >> >> The performance gap is perhaps due to the algorithms. Almost all >> cluster versions of current strong programs (MoGo, MFG, Fuego and Zen) >> use root parallel while shared memory computers allow us to use thread >> parallelism, which gives better perfor

Re: [SPAM] Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Olivier Teytaud
> > The performance gap is perhaps due to the algorithms. Almost all > cluster versions of current strong programs (MoGo, MFG, Fuego and Zen) > use root parallel while shared memory computers allow us to use thread > parallelism, which gives better performance. I think you should not have troubl

Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Hideki Kato
Darren Cook: <4b0c6706.7070...@dcook.org>: >> Also, on 19x19 board, current 16-core cluster version performs almost >> the same as 8-core shared memory pc such as Mac Pro, which Yamato used >> for KGS. > >Hi Hideki, >Is that difference due to a scaling limit of Zen, or is this due to the >cluste

Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Darren Cook
> Also, on 19x19 board, current 16-core cluster version performs almost > the same as 8-core shared memory pc such as Mac Pro, which Yamato used > for KGS. Hi Hideki, Is that difference due to a scaling limit of Zen, or is this due to the cluster overhead? Would moving from gigabit to infiniband

Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Hideki Kato
Hi Nick, I'll perticipate comming tournaments as much as possible but it's still under development and needs much more work and time for full performance. Since my mini cluster uses usual Gigabit Ether, which is much slower than expensive Infiniband or such high speed network devices, it performs

Re: [computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Nick Wedd
In message <4b0c4522.370%hideki_ka...@ybb.ne.jp>, Hideki Kato writes Ingo Althöfer: <20091124200643.255...@gmx.net>: Hideki replied: Do I have a Christmas wish for free already? It is: Let the cluster also run on KGS - against the humans. I'd like to do so but it's not allowed to connect

[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Ingo Althöfer
Hi Hideki, >> Is Zen-Author reading here? >> Maybe, he can rethink about the possibility. > > He is sleeping now 'cause it's 5:30 am in Japan :). Ok, let him his good sleep. >> I want Cluster-Zen for Christmas, Cluster-Zen-for Christmas, >> Cluster-Zen for Christmas, please, please, please, pl

[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Hideki Kato
Ingo Althöfer: <20091124200643.255...@gmx.net>: >Hideki replied: >> >>> Do I have a Christmas wish for free already? >>> It is: Let the cluster also run on KGS - against the humans. >> >> I'd like to do so but it's not allowed to connect the >> cluster to the Internet, sigh. > >Hmm. As CGOS is al

[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Ingo Althöfer
Hideki replied: > >> Do I have a Christmas wish for free already? >> It is: Let the cluster also run on KGS - against the humans. > > I'd like to do so but it's not allowed to connect the > cluster to the Internet, sigh. Hmm. As CGOS is also Internet, it seems that Zen-author does not allow you t

[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Hideki Kato
Ingo Althöfer: <20091124190802.303...@gmx.net>: >Hideki Kato wrote: >> I'm now testing a cluster version of Zen (Zengg-4x4c-tst), developed >> by a joint project with Yamato, on cgos 19x19. It wons, however, all >> games (except first one with timeout due to a bug). Running more >> strong prog

[computer-go] Re: A cluster version of Zen is running on cgos 19x19

2009-11-24 Thread Ingo Althöfer
Hideki Kato wrote: > I'm now testing a cluster version of Zen (Zengg-4x4c-tst), developed > by a joint project with Yamato, on cgos 19x19. It wons, however, all > games (except first one with timeout due to a bug). Running more > strong programs are very appreciated. Hideki, thx for your acti